International Symposium on Broomrape (Orobanche spp.) in Sunflower By Republic of Türkiye Ministry of Agriculture and Rural Affairs The General Directorate of Agricultural Research Trakya Agricultural Research Institute Edirne




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International Symposium on Broomrape (Orobanche spp.) in Sunflower


By

Republic of Türkiye

Ministry of Agriculture and Rural Affairs

The General Directorate of Agricultural Research

Trakya Agricultural Research Institute Edirne, Türkiye

Collaboration with

Turkish Plant Breeders Association

International Sunflower Association

FAO (Food and Agriculture Organization)

November 30 – December 3, 2008

Fame Residence Hotel, Antalya, Turkey
This symposium jointly organized by
Republic of Turkey

Ministry of Agriculture and Rural Affairs

The General Directorate of Agricultural Research

Trakya Agricultural Research Institute – Edirne
Turkish Plant Breeders Association

International Sunflower Association

FAO (Food and Agriculture Organization)
This symposium jointly sponsored by

Agrozem Invest Co.





WELCOME NOTES

Dear Participants,


As the Chair for the International Symposium of Broomrape (Orobanche spp.) in Sunflower in Antalya, Turkey, I'd like to welcome you and to give some information on this event. Our symposium brings together a variety of sunflower researchers from government, commercial, and academic organizations worldwide to foster cooperation on sunflower and broomrape and to promote information sharing among researchers largely. The aim of our international symposium is present the newest research results and research goals, analyze present conditions and perspectives in Broomrape biology, plant host relationships and resistance breeding, chemical and other control methods in sunflower. As always, we also extend a warm welcome to all our colleagues in the sunflower research and industry who share our interest in improving information to increase the income of sunflower producers.

As organizers, we also would like to discuss in new project ideas on EU Research Framework and also on other international organizations. If you or your organization are interested in joining these discussions and taking part in preparing new projects, this will be great opportunity for further developments for sunflower research and these efforts will contribute to increase collaborationships at international level among us. In addition to the excellent program, the symposium provides an excellent environment to meet your peers in sunflower research, build relationships, and exchange lessons learned.



As one of beautiful cities in the world, first time visitors to Antalya are usually overwhelmed by the sheer beauty of the city and surroundings. Antalya is a city that manages to surprise and enthuse in equal measure, with reminders of Antalya's rich landscape and historical sites. Antalya which is Turkey's principal holiday resort is an attractive city with palm lined street and it is full of history with a beautiful coastline of beach has and rocky coves where the towering Toros mountains. There is sunshine for 300 days of the year in Antalya and it is perfect place for sunbathing and swimming or for sporting activities such as windsurfing water-skiing, sailing and also climbing, trekking, hunting and skiing on mountains, etc... We are sure that these symposium days and half day sightseeing tour will be enough to notice the beauty of Antalya province but not enough to discover it.
We wish you nice stay in Antalya for truly rewarding days.

Dr Yalçın KAYA

Chair

On the behalf of Organizing Committee

Symposium Program:


Day

Event

Sunday, November 30, 2008

16 00 - 19 00

Registration

Monday, December 1, 2008

8 30 - 9 00

Registration


9 00 – 9 30

Opening Talks:
Dr. Yalcin KAYA, Chair, Organizing Committee

Dr. Necmi BESER, Director of Trakya Agricultural Research Institute

Dr. Vehbi ESER, President of Turkish Plant Breeders Association

Prof Dr. Dragan SKORIC, On the behalf of Scientific Committee

Assoc. Prof Dr. Masum BURAK, Director General, The General Directorate of Agricultural Research


9 30 – 10 00

Invited speakers: A. Höniges, K. Wegmann, A. Ardelean

Orobanche Resistance in Sunflower

10 00 – 10 30

Invited speaker: D. M. Joel, D. Plakhine

Seed Conditioning of Orobanche in Agricultural Fields: Ecophysiological Aspects

10 30 – 10 45

Coffee break

10 45 - 12 00

1st Session: BROOMRAPE BIOLOGY, PLANT HOST RELATIONSHIPS

Session Chair : Prof. Dr. Jose Maria Melero Vera

10 45 - 11 05

Broomrape (Orobanche spp.) Problem in The Eastern Mediterranean Region of Turkey F. Bülbül, E.Aksoy, S.Uygur, N.Uygur

11 05 - 11 25

Current status of broomrape (Orobanche cumana Wallr) in Serbia

B. Dedić, N. Lačok, S. Tančić, S. Jocić



11 25 - 11 45

Sunflower broomrape (Orobanche cumana Wallr.) in Castilla-León, a traditionally non broomrape infected area in Northern Spain.

J. Fernández-Escobar, M.I. Rodríguez-Ojeda, L.C. Alonso



11 45 - 12 00

Questions and Answers

12 00 – 13 00

Lunch

13 00 – 14 15

2nd Section: RESISTANCE BREEDING

Section Chair : Prof. Dr. Stevan Masirevic

13 00 – 13 20

Virulence and aggressiveness of sunflower broomrape (Orobanche cumana Wallr.) populations, in Europe

M. Pacureanu Joita, S. Raranciuc, E. Sava, E. Petcu, N. Babeanu, O. Popa



13 20 – 13 40

The Wild Species Helianthus - Source of Resistance to the Parasite Orobanche cumana M. Christov, R. Batchvarova, M. Hristova-Cherbadzhi

13 40 – 14 00

Behavior of some sunflower cultivar at the broomrape attack in Romania V. Jinga, H. Iliescu, S. Stefan, D. Manole

14 00 – 14 15

Questions and Answers

14 15 – 14 30

Coffee break

14 30 - 17 00

3rd Section: RESISTANCE BREEDING

Section Chair : Prof. Dr. Jose Maria Fernandez

14 30 - 14 50

Sunflower breeding for resistance to the new broomrape race in the Krasnodar region of Russia S.V. Gontcharov

14 50 - 15 10

The Use of new Rf Inbred Lines Originating from Interspecific Population with H. deserticola for the Production of Sunflower Hybrids Resistant to Broomrape

N. Hladni, S. Jocić, V. Miklič, D. Saftić-Panković, D. Škorić



15 10 - 15 30

The performance of sunflower hybrids resistant to race F of Orobanche cumana Wall. in naturally infested fields.

J. M. Melero-Vara, R. García Ruiz, J. Domínguez, M. L. Molinero-Ruiz



15 30 - 15 50

The Evaluation of Broomrape Resistance in Sunflower hybrids

Y. Kaya, G. Evci, V. Pekcan, T. Gucer, M. I. Yilmaz



15 50 - 16 10

The Virulence of Broomrape (Orobanche cumana Wallr.) Populations on Sunflower in some Regions of Northern Caucasus

T.S. Antonova, N.M. Araslanova, S.Z. Guchetl, T.A. Tchelustnikova, S.A. Ramazanova, E.N. Trembak



16 10 - 16 30

Determination Superior Hybrid Combinations in Sunflower and Testing Hybrid Performance in  Broomrape (Orobanche Cumana Wallr.) Infested Areas O. Gunduz, A. T. Goksoy

16 30 – 16 50

Ongoing Research Strategies for Sunflower Broomrape Control in Spain

J. M. Fernández-Martínez, J. Domínguez, B. Pérez-Vich and L. Velasco



16 50 - 17 10

Status of broomrape in Serbia S. Masirevic

17 10 - 17 30

Questions and Answers

17 30 - 18 30

Discussion Session: Recent developments on the distribution of new race of Broomrape by participating countries

Session Chair: Prof. Dr. Ferenc Vranyi

19 00 - 20 00

Dinner

Tuesday, December 2, 2008

9 00 – 11 00

4th Session: Broomrape Chemical and Other Control Methods in sunflower

Session Chair : Prof. Dr. Horia Iliescu

9 00 – 9 20

Improving sunflower for resistance to Orobanche and Sulfonylureas herbicides - Sunflower hybrid PF100

G. Dicu, N. Dumitrescu, M. Radu, O. Diaconescu



9 20 – 9 40

Control of Broomrape in Iran  A. Esmaailifar, A. Nezamabadi, A. Mirabadi

9 40 – 10 00

Status of Orobanche cernua Loefl. and Weeds in Sunflower Production in Turkey M. Demirci, Y. Kaya

10 00 – 10 15

Questions and Answers

10 15 – 10 30

Coffee break

10 30 - 11 30

Discussion: COST and other joint EU Project proposals

Session Chair : Prof. Dr. Dragan Skoric

11 40

Closing the symposium

12 00 – 12 30

Lunch

12 30 – 20 00

Sightseeing Tour (Antalya city and around)

20 30 - 21 30

Dinner

Wednesday, December 3, 2008, Leaving from the hotel


ORGANIZING COMMITTEE:
Dr Yalcin KAYA (Head of Committee)

Dr Goksel EVCI

Veli PEKCAN

Prof Dr Dragan SKORIC


SCIENTIFIC COMMITTEE:
Dr Yalcin KAYA (Head of Committee)……..Turkey

Prof Dr Dragan SKORIC……………………......Serbia

Dr Maria PACUREANU…………………….........Romania

Dr Pepa SHINDROVA………………………........Bulgaria


HOST INSTITUTION:
Trakya Agricultural Research Institute

P.O.Box : 16, 22100, EDIRNE-TÜRKİYE

Phone: +90 284 235 81 80 - 235 81 82 - 235 81 83 Fax: +90 284 235 82 10

Web Page: www.ttae.gov.tr E - Mail: ttae@ttae.gov.tr



The hotel and sightseeing tour arrangements are organized by SSC Tour Travel Agency.
SSC Tour

Address: Fahrettin Kerim Gokay Cad. No:175/A Goztepe - Istanbul 

Phone: +90 216 566 63 63 pbx Fax: +90 216 566 57 58

Office Gsm:+090 533 480 94 13 Web: www.ssc.com.tr E-mail: info@ssc.com.tr

PARTICIPANT LIST


#

Name

Institution

Country

E-mail

1

Dimiter Petakov

Goldenwest Seed Co.

Bulgaria

d_petakov@gwseed.com

2

Pepa Shindrova

Dobroudja Research Institute

Bulgaria

shindrova_p@yahoo.com

3

Bozhidar Bonev

Limagrain Seed Bulgaria

Bulgaria

bozhidar.bonev@limagrain.bg

4

Michail Christov

Dobroudja Research Institute

Bulgaria

michailhristov@yahoo.com

5

Dr Sadik EL SAYED

Pioneer Seed Co.

Egypt

elsayed.sadik@pioneer.com

6

Mohammed Zaheeruddin Patel

Misr Hytech Seed International

Egypt

Zaheer.Patel@hytechseed.com

7

Dr Antoine GAILLARD

Maisodor Semences

France

gaillard@maisador.com

8

Emeline Teissier

Syngenta Seeds S.A.S.

France

emeline.teissier@syngenta.com

9

Prof. Dr. Klaus Wegmann

Universitatea de Vest Vasile Goldis

Germany

wegmann@mail.uvvg.ro

10

Ana Höniges

Universitatea de Vest Vasile Goldis

Germany

a_hoeniges@yahoo.de

11

Peter Schlotter

Dow Agro Science

Germany

pschlotter@dow.com

12

Prof. Dr. Ferenc Virányi

Szent István University

Hungary

viranyi.ferenc@mkk.szie.hu

13

Melinda Tremmelné Tar

Szeged GKI

Hungary

tarm@gk-szeged.hu

14

Páricsi Sándor

Szeged GKI

Hungary

sandor.paricsi@gk-szeged.hu

15

Ebrahim Faroukhi

Karaj Research Institute

Iran

farrokhi_e@yahoo.com

16

Afshin Esmaailifar

Oilseeds Research & Development

Iran

aesmaailifar@ordc.ir

17

Mohammad Nezamabadi

Oilseeds Research & Development

Iran




18

Ghassem Rouzbeh

TECHNOPARS Co.

Iran

matin_rouzbeh@yahoo.com

19

Prof. Dr. Daniel M. Joel

Newe Yaar Research Center

Israel

dmjoel@volcani.agri.gov.il

20

Zouzou Antoun

Debbane Freres Trading Offshore

Lebanon

jantoun@debbane.com

21

Mariana Georghe

Maisodor Semences

Romania

gheorghe@maisadour.com

22

Georgeta Dicu

PROCERA Agrochemicals

Romania

georgeta.dicu@procera.ro

23

Nicolae Parvu

Quality Crops Co.

Romania

nicolae.parvu@qualitycrops.ro

24

Vasile JINGA

Research Institute for Plant Protection

Romania

vasilejinga@zappmobile.ro

25

Stefan SORIN

Research Institute for Plant Protection

Romania

secretariat_stiintific@icdpp.ro

26

Prof Dr Horia ILIESCU

Research Institute for Plant Protection

Romania

secretariat_stiintific@icdpp.ro

27

Mirela TRIFU

Research Institute for Plant Protection

Romania

secretariat_stiintific @ icdpp.ro

28

Rodica Doina Iliescu

Research Institute for Plant Protection

Romania

secretariat_stiintific @ icdpp.ro

29

Maria Pacureanu

Fundulea Research Institute

Romania

mariapacureanu2@yahoo.com

30

Alexandrina Popescu

Fundulea Research Institute

Romania

erbicide.incda@yahoo.com

31

Elena Petcu

Fundulea Research Institute

Romania

petcue@ricic.ro

32

Dr. Evgeny Trembak

VNIIMK Research Institute

Russia

vniimk-center@mail.ru

33

Dr. Tatiana Antonova

VNIIMK Research Institute

Russia

antonova-ts@mail.ru

34

Feodor Gorbachenko

L.A. Jdanova VNIIMK

Russia

goleg@aaanet.ru

35

Oleg Gorbachenko

L.A. Jdanova VNIIMK

Russia

goleg@aaanet.ru

36

Nikolay Luchkin

L.A. Jdanova VNIIMK

Russia

goleg@aaanet.ru

37

Dr Serguei Gontcharov

VNIIMK Research Institute

Russia

serggontchar@hotmail.com 

38

Petr Sevostjanovich Kosov

Agrozem Invest

Russia

om@agrozeminvest.ru

39

Nikolaj Ivanovich Benko

Agro-Plazma

Russia




40

Vladimir Vasiljevich Pacev




Russia




41

David MONGFOLD

MAY Seed

S. Africa

david.mogford@may.com.tr

42

Anika Nisavic

Maize Research Institute Zemun Polje

Serbia

anika.nisavic@gmail.com

43

Bosko Dedic

Novisad Research Instiute

Serbia

boskode@neobee.net

44

Prof Dr Dragan SKORIC

Serbian Academy of Sciences

Serbia

draganskoric@sbb.co.yu

45

Prof Dr Stevan Masirevic

Novisad Research Instiute

Serbia

stevanm@polj.ns.ac.yu

46

Manuel S. Fernández

Syngenta Seeds S.A

Spain

manuel_salvador.fernandez@syngenta.com

47

Juan Fernández Escobar

Koipesol Semillas,S.A.

Spain

juan.fernandez@koipesolsemillas.com

48

María Isabel Rodríguez Ojeda

Koipesol Semillas,S.A.

Spain

maribel.rodriguez@koipesolsemillas.com

49

Ricardo SICILIANO

SOLTIS ESPAÑA

Spain

ricardo.siciliano@advantaiberica.com

50

Prof. Dr. José M. Melero Vara

Inst de Agricultura Sostenible Cordoba

Spain

cs9mevaj@uco.es

51

Prof. Dr.José Maria Fernandez

Inst de Agricultura Sostenible Cordoba

Spain

cs9femaj@uco.es

52

M. Leire Molinero-Ruiz

Inst de Agricultura Sostenible Cordoba

Spain

ag2morum@uco.es

53

Dr. Necmi BEŞER

Trakya Agricultural Research Institute

Turkey

necmibeser@yahoo.com

54

Dr Yalcin KAYA

Trakya Agricultural Research Institute

Turkey

yalcinkaya22@gmail.com

55

Dr Goksel EVCI

Trakya Agricultural Research Institute

Turkey

gokselevci@hotmail.com

56

Adnan ESMER

MAY Seed

Turkey

adnan@may.com.tr

57

Evren ORUÇ

MAY Seed

Turkey

evren@may.com.tr

58

Gülay Küçükosmanoğlu

Agromar AŞ

Turkey

gulay@agromar.com.tr

59

Mahir KARA

Agromar AŞ

Turkey

mahir@agromar.com.tr

60

Abdullah Disbudak

Monsanto Seed

Turkey

abdullah.disbudak@monsanto.com

61

Dr Zafer Uckun

BASF Turkey

Turkey

zafer.uckun@basf.com

62

Ali OZEN

Biyotek Seed

Turkey

ali@biotektohum.com.tr

63

Oğuz Gündüz

Tekcan Seed

Turkey

oguzgunduz@ttnet.net.tr

64

Dr Ahmet Uludag

Izmir Il Kontrol Lab

Turkey

ahuludag@yahoo.com

65

Z. Filiz Bulbul

Adana Plant Protection Research Inst.

Turkey

zfiliz44@yahoo.com

66

F. Nezihi UYGUR

Cukurova Univ. Plant Protection Dept.

Turkey

nuygur@cu.edu.tr

67

Mahmut KAPLAN

Limagrain Seed Turkey

Turkey

mkaplan@limagrain.com.tr

68

Ayhan PİRİNÇ

Limagrain Seed Turkey

Turkey




69

Ümit DEMİRCİOĞLU

Limagrain Seed Turkey

Turkey




70

Aydın YILMAZ

Eko Tarım

Turkey

AydinYilmaz@ekotarim.com.tr

71

Hacı TARHAN

Eko Tarım

Turkey

eko@ekotarim.com.tr 

72

Dr. Nesrin CITAK

Trakya Birlik

Turkey

n_citak@trakyabirlik.com.tr

73

Dr. Vehbi ESER

Turkish Plant Breeders Association

Turkey

veser@tagem.gov.tr

74

Mahmut KASAP

Syngenta Seed Turkey

Turkey

mahmut.kasap@syngenta.com

75

Mehmet Demirci

Agrobest Company

Turkey

mehmet.demirci@agrobestgrup.com

76

Sergey Shcherban

Agrosintez Corporation

Ukraine




77

Vladimir Grigorevich Konalev

Sadi Ukrajine

Ukraine




78

Viktor Burlov

Flora LTD

Ukraine

burlov_v@live.ru

79

Ianul Victor




Ukraine

nasinagra@svitonline.com

Orobanche Resistance in Sunflower
Ana Höniges, Klaus Wegmann & Aurel Ardelean

Universitatea de Vest „Vasile Goldis“, Arad, Romania


Abstract

This report will present the current knowledge of Orobanche-resistance in sunflower from the breeder’s view and from the biochemists’ view. A major difficulty for the breeder is the fast development of new pathotypes of Orobanche cumana, which overcomes the resistance of newly developed sunflower lines. The basis of increasing aggressiveness of Orobanche cumana pathotypes is discussed. Nevertheless, there is still great potential for resistance breeding in the genus Helianthus, since very different resistance factors are already known or shall be elucidated.

A survey is presented on known resistance factors, like low stimulant, mechanical barriers and how they develop, phytoalexins, Orobanche seed germination inhibitors, inhibition of the exoenzymes of the Orobanche radiculae, in particular of polygalacturonase. In this context an interesting new approach may be found in the polygalacturonase-inhibitory proteins occurring in cell walls, which inhibit the invasion of pathogenic fungi. The need for molecular biological studies will be stressed. Interdisciplinary collaboration of the breeders with biochemists and molecular biologists may lead to more advanced breeding strategies.
Key words: Orobanche cumana resistance in sunflower, resistance factors, phytoalexins, polygalacturonase inhibitors.

Seed Conditioning of Orobanche in Agricultural Fields: Ecophysiological Aspects

Daniel M. Joel* and Dina Plakhine



Department of Plant Pathology and Weed Research, ARO, Newe-Ya'ar Research Center, P.O. Box 1021, Ramat-Yishay 30095, Israel. dmjoel@volcani.agri.gov.il

It is widely known that Orobanche seeds need a conditioning phase of several days under suitable temperatures and wet conditions before being able to germinate in response to germination stimulants. However, this knowledge of seed behavior is solely based on in vitro experiments, while the conditions in the field may significantly differ from the conditions in Petri dishes. In a series of experiments we have shown that O. cumana seeds respond to the germination stimulant GR24 even without prior conditioning. The germination of non-conditioned seeds was not observed before, because the experiments did not last long enough to observe germination, since the non-conditioned seeds need a longer lag time before germinating after stimulant reception. These results are consistent with our hypothesis that, under certain field circumstances, non-conditioned Orobanche seeds may also germinate when a host root comes close to them, which may be significant in the understanding of Orobanche behavior in sunflower fields.



Broomrape (Orobanche spp.) Problem in The Eastern Mediterranean Region of Turkey

F. Bülbül1, E.Aksoy1, S.Uygur2, N.Uygur2



1Plant Protection Research Institue,01321 Köprüköyü/ADANA

2Çukurova Univ., Faculty of Agriculture, Plant Protection Dept 01330 Balcalı/ADANA
ABSTRACT

Broomrapes (Orobanche spp) which belong to the family Orobanchaceae are obligate parasitic flowering plants. The main center of distribution is the Mediterranean basin where large areas are heavily infested. Yield losses due to Orobanche attack range from 5 to 100 % depending on the region and the crop. Some broomrape species were determined in some crops in the Eastern Mediterranean Region of Turkey. As results of survey studies conducted in the region; Orobanche aegyptiaca / ramosa were present in 27.72 % of the tomato greenhouses and 80 % of the tomato fields, Orobanche crenata and O. aegyptiaca /ramosa were present in 57.89 % of the fababean fields and 75.51 % of the lentil fields.

Among the crops cultivated in the Eastern Mediterranean Region, sunflower cultivation has been gradually increasing from 2005. In 2005, sunflower sown area and production in the region were increased more than three times compare to 2004.

There is not any record on broomrapes in sunflower fields in the East Mediterranean Region, yet. But broomrapes are considered a possible threat for sunflower fields in this area. Orobanche cernua Loef. cause considerable damage all sunflower fields in Thrace region of Turkey and it may spread from the region to East Mediterranean region, easily. In addition, sunflower is also a host plant of O. ramosa L. and O. aegyptiaca Pers. Unfortunately, these species were found in some crops in the East Mediterranean Region and growers are not careful about dispersal of broomrape. Because of their small seeds are dispersal easly and their control is very difficult, all quarantine measures must be taken in Turkey immediately.



Since the magnitude of the Broomrape problem is increasing every year in Turkey, a “National Broomrape Project” has been conducting colloboration of some governmental institutes and universities since 2006. After the studies of the Project, producers are going to be educated on preventive measures for dispersal of broomrape seeds.
Key words: Sunflower, broomrape, orobanche

The performance of sunflower hybrids resistant to race F of Orobanche cumana Wall. in naturally infested fields.
1J. M. Melero-Vara, 2R. García Ruiz, 2J. Domínguez, and 1M. L. Molinero-Ruiz
1Department of Crop Protection, Institute for Sustainable Agriculture, CSIC, Apdo. 4084, 14080, Córdoba, Spain, and 2 IFAPA Centro Alameda del Obispo, CAP (Junta de Andalucía), Apdo 3092, 14080 Córdoba, Spain.
ABSTRACT
Sunflower hybrids resistant to race F of O. cumana seldom show complete lack of broomrape attachment and emergence. The effects on yield of 4 resistant hybrids with that of two susceptible highly productive hybrids were compared. Incidence of plants with emerged broomrapes (BI), final degree of attack (FDA), seed and oil yields, and oil content were determined in naturally infested fields of two locations of southern Spain (2004-2006). Although resistance is generally expressed by low FDA, higher BI was observed in 2006, showing much dependency on the environment. Vertical resistance of hybrid PR64A71 contrasted with horizontal resistance in Arango, Centurión and Olimpia, which showed higher FDA values in one heavily-infested field. Although year and location influenced yield variables, oil content mainly depended on hybrid. Cropping resistant hybrids in moderately-infested fields provided up to 11% seed yield increases. The high field potential of resistant hybrids is highlighted in heavily-infested fields since, despite the higher disease levels in the latter three hybrids, yield increases averaged 124 and 199% depending on water availability.
Key Words: sunflower broomrape, Helianthus annuus, field resistance.


Ongoing Research Strategies for Sunflower Broomrape Control in Spain
José M. Fernández-Martínez1, Juan Domínguez2, Begoña Pérez-Vich1 and Leonardo Velasco1
1Instituto de Agricultura Sostenible (CSIC). Alameda del Obispo s/n. E-14004 Córdoba, Spain

2Area de Mejora y Biotecnología, CIFA Alameda del Obispo, IFAPA-CICE, Junta de Andalucía, Apdo. 3092, E-14080 Córdoba, Spain
ABSTRACT
Sunflower broomrape (Orobanche cumana Wallr) continues to be one of the most important constraints in sunflower production in Spain. In the last ten years, genetic resistance has been the predominant strategy of control against O. cumana. However, the introduction of new resistance is frequently followed by the appearance of new virulent races overcoming that resistance. In this report, a combined strategy to control O. cumana is discussed, including: a) The use of IMI sunflower cultivars to control winter and early spring weeds and sunflower broomrape; b) The combination of vertical and horizontal resistance mechanisms in the same genotype in order to develop a more durable resistance, together with molecular studies to identify QTLs associated with broomrape resistance genes to facilitate the pyramiding of different resistance genes and the combination of different resistance mechanisms; c) The study of the variability and racial composition of Spanish sunflower broomrape populations using classical and molecular methods.
Key words: Broomrape control, Helianthus annuus, resistance mechanisms, IMI sunflower, QTL mapping.


Current status of broomrape (Orobanche cumana Wallr) in Serbia

Boško Dedić, Nada Lačok, Sonja Tančić, Siniša Jocić


Institute of Field and Vegetable Crops, Oil Crops Department, Maksima Gorkog 30, 21000 Novi Sad, Serbia. E-mail: boskode@ifvcns.ns.ac.yu
ABSTRACT
Broomrape is the parasitic plant that presents the major problem in sunflower production in Serbia. Since its first appearance in our country the species Orobanche cumana Wallr had been responsible for considerable yield loss in some sunflower growing areas. In Serbia broomrape is mostly present in Vojvodina province, where distribution and virulence groups of parasite are constantly monitored. Only two distinct broomrape populations currently exist in this part of country. According to previous research race B is dominant in south of the Vojvodina province and race E in the north. During 2008 set of 8 commercial hybrids with different broomrape resistance genes were sown in regions of Vojvodina and Central Serbia with sunflower production, on 34 different locations. Presence of broomrape was confirmed on 6 sites but occurrence of parasitic plants was not detected on hybrids resistant to race E. The survey of sunflower fields in regions where broomrape was not previously detected was also done. Survey revealed occurrence of broomrape in the new region. Infested areas are placed in Bor County near state border with Romania and Bulgaria.
Key words: broomrape, sunflower, distribution, race

Behavior of some sunflower cultivar at the broomrape attack in Romania
V. Jingax, H. Iliescux, S. Stefanx, D. Manolexx

x Research Development Institute for Plant Protection Bucharest

xx SC Sport Agra srl ,Amzacea- Dobrogea

E-mail: secretariat_stiintific@icdpp.ro



ABSTRACT
One of the most dangerous parasites on the plants there is Broomrape (Orobanche spp) in Romania. On sunflower fields were identified the population of weedy broomrapes of Orobanche cumana Wallr. It was shown a significant dissemination, especially in the south and south-eastern area of the country. The behavior of some sunflower cultivars against O. cumana were studied under artificial inoculation and natural contamination conditions. In the artificial inoculation conditions, experiments performed at the Research Development Institute for Plant Protection Bucharest, hybrids HS 1900, Turbo, Justin and Favorit have showed an absolute resistance. In natural contamination at SC Sport Agra srl ,Amzacea- Dobrogea, best result have showed: Rigasol, Flores, Albani Florena, Sunay, Favorit, Festiv and Turbo. The influence of specific herbicides on phanerogamous O. cumana was studied.
Key words: broomrape, sunflower, hybrids, behaviors.


Sunflower breeding for resistance to the new broomrape race in the Krasnodar region of Russia
Gontcharov S.V.
Kuban State Agrarian University Kalinina, 13, Krasnodar, 350044, Russia.

E-mail: serggontchar@hotmail.com


ABSTRACT
Broomrape (Orobanche cumana Wallr.) is a parasitic plant, feeding on sunflower roots. During the last years some new, more aggressive races have been found in the different parts of the world (Spain, Turkey, Romania, etc.). A little bit later they appeared in Russia and we started a special breeding program. Previously one resistant line (VK 623) to the race F was found among the lines of the VNIIMK breeding. In a short time some new prospective sunflower inbred lines with resistance to both broomrape races – E and F were developed. Now they are on the way of being converted to the CMS-lines. However recessive character of this resistance create some difficulties in commercial sunflower hybrid breeding, so to obtain new donors of resistance in the future, the cultivated sunflower was crossed with H. tuberosus (used as a pollinator).
Key words: breeding, broomrape, hybrid, resistance, sunflower.


Sunflower broomrape (Orobanche cumana Wallr.) in Castilla-León, a traditionally non broomrape infested area in Northern Spain.
J. Fernández-Escobar (1), M.I. Rodríguez-Ojeda(1), J.M. Fernández-Martínez(2) and L.C. Alonso(1).

(1)Koipesol Semillas S.A. Avd. San Fco Javier 24. Ed. Sevilla 1 planta 7. 41018 Sevilla (Spain)

(2)Instituto de Agricultura Sostrenible (CSIC). C/ Alameda del Obispo s/n. 14080 Córdoba (Spain)
ABSTRACT
Spanish sunflower acreage is basically divided in 3 main and isolated areas, the Guadalquivir valley, Southern Spain, represents the 37 % of the total acreage, the Cuenca area located in Spain´s Central plateau, with 28% and the Castilla-León area, Northern Spain, with 29 %. Sunflower broomrape (Orobanche cumana, Wallr.) has been present in Spain since the 1960’s. From that time on, different waves of dissemination and dispersion of the parasite have been found. The latest correspond to broomrape race E dispersion in the early 1990’s and race F in the first years of 2000. These broomrape dissemination waves have been circumscribed only to the Guadalquivir and Cuenca areas. In the Castilla-León area, the presence of broomrape had not been noticed until now.

In 2008, a highly virulent broomrape infection focal point (about 300 m2) has been detected in one sunflower plot near Medina del Campo (Valladolid), south of the centre of the Castilla-León area. Racial determination has proved that this broomrape inoculum belongs to race F.


Key word: Orobanche cumana, broomrape, sunflower, dissemination, F race

The Wild Species Helianthus - Source of Resistance to the Parasite Orobanche cumana

M. Christov, R. Batchvarova, M. Hristova-Cherbadzhi



Dobroudja Research Institute, BULGARIA

ABSTRACT
Eleven perennial species Helianthus, with different ploid level, and several hybrid forms of sunflower, with origin from crosses of wild species with cultivated Helianthus annuus L., were included in this research. The obtained hybrid forms and the new lines, created from them, showed resistance to different races of Orobanche cumana. Full resistance to the most virulent broomrape race, widely distributed in Bulgaria, showed the materials, obtained from crosses of the tetraploid H. decapetalus and crosses of the diploid H. divaricatus. The difference in the profile of resistant and non-resistant lines was proved by the RAPD method. Part of the new resistant lines participate in the creation of new hybrid sorts.

The Evaluation of Broomrape Resistance in Sunflower Hybrids
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