الأداء وقوة الهجين ومعامل التدهور للجيل الثاني في حنطة الخبز وفق التهجين التبادلي النصفي

الأداء وقوة الهجين ومعامل التدهور للجيل الثاني في حنطة الخبز وفق التهجين التبادلي النصفي

ماجد جليل رشيد البياتي

أ.د. احمد هواس عبد الله

جامعة تكريت / كلية الزراعة / قسم المحاصيل الحقلية

Abstract

this study, six varieties(parents) of wheat bread were used (aba95, Rashid, Abu Ghraib, Jihan, Tammuz 2, and addna), and their individual hybrids of the second generation of (15) hybrids, the six parental varieties and their half-mutualistic hybrids were planted at the research station of the Department of field crops of the Faculty of Agriculture- University of Tikrit in the second week of November (2021), using the design of complete random sectors (RCBD) and three iterations the most important results can be summarized as follows: the ratio of the components of the variation of the general federal estimate to the ratio of the components of the variation of the special federal estimate was less than the correct one for all the qualities under study, and the best Superior and positively influential and

desirable parents of the general federal estimate is the parent (1) of the qualities of the number of grains in the spike, the individual plant quotient, the biological quotient and the harvest guide, the best results can be summarized as follows: and parent (3) and the qualities of the number of

spikes in the plant, the number of grains in the spike, the quotient of the individual plant and the harvest guide. The highest positive value of the effect of the federal special assessment of the Hybrid (3×4) for the qualities of the number of spikes in the plant, the number of grains in the spike, the weight of 1000 grains and the biological quotient, the hybrid (1×4) for the qualities of the number of grains in the spike, the quotient of the individual plant, the biological quotient and the harvest guide, the hybrid (2×3) for the

qualities of the number of spikes in the plant, the number of grains in the spike, the weight of 1000 grains, the quotient of the individual plant and the biological quotient, the sovereign genetic Act was more influential than the additional genetic act it is worth mentioning that from this point of view, these parents superior in the general ability to unite with a high phenotypic significance can be introduced into wheat breeding programs to produce hybrids superior in the special ability to unite, which can be invested in the next generations within breeding programs to reach the most promising varieties with the desired specifications within the conditions of the region in the future.

Key words: bread wheat, hybridization, deterioration coefficient.