000			06045nam a22007697a 4500
001			G79751
003			MX-TxCIM
005			20231018183726.0
008			121211s ||||f| 0 p|p||0|| |
040			_aMX-TxCIM
072		0	_aF30
072		0	_aH20
090			_aCIS-4090
100	1		_aBagci, A. _uInternational caucasian conference on cereals and food legumes. Abstracts; 14-17 Jun 2004; Tbilisi (Georgia)
110	0		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) _9978
245	0	0	_aImportance and control of dryland root rot: _b a serious limitation to rainfed winter wheat production in Turkey. Summary of the joint research program between Turkey and CIMMYT
260			_aTbilisi (Georgia) _bCIMMYT : _c2004
300			_ap. 243
340			_aPrinted
520			_aRoot and crown, or foot root rots are important diseases of cereals worldwide, particularly in the dryland areas of the WANA (West Asia and North Africa) region where cereal rotations under sub- optimal growing and rainfed or limited irrigation conditions predominate. Dryland root rots generally include a complex of species such as common root rot (Bipolaris sorokiniana (syns. Helminthosporium sativum, H. sorokinianum, Teleomorph Cochliobolus sativus (Ito &Kurib.) Dresch. ex Dast.", and several species of crown root (Fusarium spp.). The two most reported Fusarium species are F. pseudograminearum (formerly F. graminearum Group I, Teleomorph Gibberella coronicola) and F. culmorum, while several others, such as F. acuminatum, F. avenaceum and F. crookwellense, have also been reported. Yield loss caused by these cereal root pathogens have been documented in many regions ofthe world, including Europe, America, particularly in more marginal cereal production areas of West Asia, North Africa, Australia and Canada (1,4) to be between 3-50% ( 1 ). Considering the similarity of cropping patterns and climate with those practiced in WANA, soil-borne pathogens in some areas of Central Asia are likely to cause important economic losses, in particular under rainfed and limited irrigation conditions. Cereals, especially wheat and barley, are main crops in Turkey in terms of production and consumption. 51% of sown area and 61% of total field crop area is occupied by wheat. The Turkish research organization GDAR (General Directorate of Agricultural Research) began a Nationwide Wheat and Barley Root Rots Project in 1999 in collaboration with CIMMYT for implementing winter wheat breeding programs in Turkey and the region. Objectives of the joint Turkey/CIMMYT Project: a) survey to identify pathogens of the root and crown rot in the cereal growing regions of Turkey; b) yield loss studies; c) control measures, including: I) resistant and tolerant cultivars; 2) rotation and cultivation systems; 3) chemical options as seed fungicides; 4) effect of microelements A survey of over 450 plant samples from the plateau has implicated the Fusarium species F culmorum and F pseudograminearum to be the main causative agents of dryland root rot. Yield trials on winter wheats inoculated by Bipolaris sorokiniana, Fusarium culmorum ve Fusarium pseudogra- minearum registered yield losses up to 45%. Decreased tolerance was reported in triticale>barley > bread wheat > durum wheat. Several tolerant lines were identified. Similarly, under inoculated field conditions, 7167 genotypes (lines/varieties) ot bread and durum wheat, barley and triticale were tested, over 200 of them being marked for further testing, approval and subsequent integration into the Intemational Winter Wheat Improvement Program. Simultaneously, these lines were sent to CIMMYT Mexico for incorporating into the spring wheat germplasm. Seed treatment with different fungicides increased yield as compared with the control, however their use is limited because if their economic unfeasibility. The application of Zn and Fe microelements was found to be highly important in reducing the losses from dryland root rots; however, variety specific reactions were evident. The current evidence justifies the use of an integrated pest management approach to these dryland root rots with an emphasis on host plant resistance The paper provides a summary of the project implementation outcomes with an, emphasis on the strategy for identifying and incorporating host resistance for controlling these cereal root rots.
536			_aGlobal Wheat Program
546			_aEnglish
591			_a0407|AGRIS 0401|AL-Wheat Program
593			_aJuan Carlos Mendieta
594			_aINT0599|INT2410
595			_aCSC
650	1	0	_aBipolaris sorokiniana
650	1	0	_aCochliobolus sativus _92193
650	1	0	_aDry farming
650	1	0	_aFusarium acuminatum
650	1	0	_aFusarium avenaceum
650	1	0	_aFusarium crookwellense
650	1	0	_aFusarium culmorum
650	1	0	_aHelminthosporium sativum
650	1	0	_aHelminthosporium sorokiniana
650	1	7	_aPlant diseases _gAGROVOC _2 _91206
650	1	0	_aPlant production _91212
650	1	0	_aRainfed farming
650	1	0	_aRoot rots
650	1	0	_aTurkey
650	1	0	_aWheat
650	1	0	_aYield factors
653	0		_aCIMMYT
650	1	7	_aAgricultural research _gAGROVOC _2 _91006
700	1		_aAkyn, K., _ecoaut.
700	1		_aArysoy, Z., _ecoaut.
700	1		_aBedoshvili, D. _eed.
700	1		_aBolat, N., _ecoaut.
700	1		_aBuyuk, O., _ecoaut.
700	1		_aCekic, C., _ecoaut.
700	1		_aErdurmus, D., _ecoaut.
700	1		_aGultekin, I., _ecoaut.
700	1		_aHede, A.R., _ecoaut.
700	1		_aHekimhan, H., _ecoaut.
700	1		_aKaya, Y., _ecoaut. _92486
700	1		_91342 _aKeser, M.
700	1		_aNicol, J.M., _ecoaut. _9228
700	1		_aOzseven, I., _ecoaut. _91346
700	1		_aTanner, A.H., _ecoaut.
700	1		_9341 _aTrethowan, R.M.
700	1		_aTunali, B., _ecoaut.
700	1		_aUckun, Z., _ecoaut.
700	1		_aYyldyrym, F., _ecoaut.
700	1		_aBraun, H.J. _gFormerly Global Wheat Program _8INT0599 _9824
700	1		_997 _aGinkel, M. Van
942			_cPRO
999			_c7103 _d7103