000 02727nam a22003257a 4500
001 G95064
003 MX-TxCIM
005 20210520185027.0
008 121211s ||||f| 0 p|p||0|| |
040 _aMX-TxCIM
090 _aCIS-6334
100 1 _aRahmatov, M.
_uBGRI Technical Workshop, Oral Presentations Poster Abstracts Participants and Program; Minnesota (USA); 13-16 Jun 2011
245 0 0 _aThe national wheat breeding program for development of high yielding and rusts resistant of bread wheats for Tajikistan
260 _c2011
300 _ap. 174
500 _aAbstract only
520 _aWheat is the main staple food crop in Tajikistan and it is of high importance to have an in-country breeding program in collaboration with International Centers. In particular yellow rust has become a serious wheat disease, and significantly reduced grain yield by 30-50% in Tajikistan in 2010. The breeding activities carried out by the national wheat breeding program in 2009 and 2010 has resulted in a number of high yielding and yellow rust resistant facultative/winter and spring bread wheat lines being identified through multi-location yield trials. The following lines were promoted for official variety testing; PRINIA/STAR, SHARK/F4105W2.1, OTUS/ TOBA97, HUAYUNINIA, KAUZ*2/CHEN//BCN/3/MILAN, CBRD/KAUZ and CMH82A.1294/2*KAUZ//MUNIA/ CHTO/3/MILAN. The stem rust race Ug99 has spread across a number of African countries and have now established itself in the Middle East, and might migrate further. For this reason 100 widely grown bread wheat varieties and advanced breeding lines were evaluated for adult plant resistance against Ug99 at Njoro, Kenya. The results showed that 85% of the genotypes were susceptible with reactions ranging from 40S to 70S and 10% were found moderately susceptible ranging from 20MS to 50MS. Only 5% of the genotypes were found moderately resistant ranging from 10MR to 40MR to Ug99. Also, a number of BC1F3 wheat-rye translocation lines (1RS++ and 2RL-+) were evaluated for resistance towards Ug99 in Njoro, Kenya. Two lines showed APR to Ug99. The two resistant lines will be utilized in combination with Tajik germplasm to develop a mapping population for determining the underlying basis of resistance.
536 _aGlobal Wheat Program
546 _aEnglish
593 _aLucia Segura
594 _aINT1787
700 1 _aEshonova, Z.,
_ecoaut.
700 1 _aHede, A.,
_ecoaut.
700 1 _aJohansson, E.,
_ecoaut.
700 1 _aMcIntosh, R.
700 1 _92318
_aMuminjanov, H.
700 1 _9833
_aMorgounov, A.I.
_gFormerly Global Wheat Program
_8INT1787
856 4 _yAccess only for CIMMYT Staff
_uhttp://libcatalog.cimmyt.org/download/cis/G95064.pdf
942 _cPRO
_2ddc
999 _c8114
_d8114