000 04201nam a22004817a 4500
001 G79884
003 MX-TxCIM
005 20211006074004.0
008 121211s ||||f| 0 p|p||0|| |
040 _aMX-TxCIM
072 0 _aA50
072 0 _aF30
082 0 4 _a633.1147
_bBED
100 1 _aKerimova, I.
_uInternational caucasian conference on cereals and food legumes. Abstracts
110 0 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT)
_9978
111 2 _cTbilisi (Georgia)
_d14-17 Jun 2004
245 0 0 _aUsing wheat genotypes from international agricultural research centers in hybridization
260 _aTbilisi (Georgia)
_bCIMMYT :
_c2004
300 _ap. 267
340 _aPrinted
500 _aAbstract only
520 _aWheat is the most important crop providing the world population with bread and bakery products. To increase production of wheat grain, along with the introduction of improved crop management pra- ctices, the development of varieties resistant to biotic and tolerant to abiotic stresses is of high significance. One of the main ways of developing such varieties is hybridization. Selection of the parents bearing ne- cessary morphological and physiological traits largely determines success of development of high- yielding genotypes through hybridization. Parental lines differing by morphophysio- logical traits were selected from local and introduced germplasm (provided by CIMMYTIICARDA) at Experimental Base ofR1 of Agriculture located on the Absheron peninsula. Characteristics for selecting parents included the following: growth habit, mor- phology of the leaves, resistance to diseases and grain yield. The present paper discusses various morpho- physiological traits of the lines obtained through cro- ssing of the selected parents: Azemetli-95 x Giymatli- 2117, Giymatli-211 x Azametli-95, Baraketli-95 x 2nd DWYRR #9 and 2nd DWYRR #19 x Baraketli-95. Azametli-95 is a high yielding, facultative ( se- mi-spring) variety with high disease resistance and drought tolerance. It is characterized by erect leaves, high photosynthetic activity and grain shattering. Giymatli-2/17 is a high-yielding variety, with susceptibility to drought; moderate disease resista- nce, and wide and horizontal leaves. These two varieties were crossed and individual plants with desirable traits were selected from the segregating populations. Phenological observations were made and adapted lines were developed. The obtained lines possessed drought tolerance, disease resistance, erect leaves and non-shattering grain. Baraketli-95 is a facultative (semi-winter), high-yielding variety with high photosynthetic activity characterized by disease resistance and drought tolerance. In contrast to Baraketli-95, leaves of entry #19 of 2nd DWYRR are small. The purpose of hybridization of these two varieties was development of pure lines combining positive traits of Baraketli- 95 with small leaves. Genotypes with small and erect leaves are distinguished by high photosynthetic activity ofthe lower part organs of the wheat plant, which contributes to high yield. The objective ofthe present study was correct selection of the parents and evaluation of the obtained lines based on the morpho-physiological traits such as erect leaves, disease resistance, dro- ught tolerance, and grain yield. Genotypes with such morpho-physiological traits maximally utilize resources of the environment (solar energy, water, etc. ), which contributes to high yield.
546 _aEnglish
591 _a0408|AGRIS 0401|AL-Wheat Program
593 _aJuan Carlos Mendieta
595 _aCPC
650 1 0 _aBread
_91027
650 1 0 _aCrop husbandry
_91058
650 1 7 _aDisease resistance
_gAGROVOC
_2
_91077
650 1 0 _aDrought resistance
650 1 0 _91133
_aGenotype environment interaction
_gAGROVOC
650 1 0 _aHybridization
650 1 0 _aMorphogenesis
650 1 0 _aPhysiological disorders
650 1 0 _aSeed production
_91253
650 1 7 _aVarieties
_gAGROVOC
_2
_91303
650 1 0 _aWheat
653 0 _aCIMMYT
650 1 7 _aAgricultural research
_gAGROVOC
_2
_91006
700 1 _aBedoshvili, D.
_eed.
700 1 _aZamanov, A.,
_ecoaut.
942 _cPRO
999 _c7146
_d7146