Details for Identification and hybridization usage of CIMMYT wheat germplasms

Chai Y, Li X, Zhao Z, Sun L, Li Y and Ma G (2013). Identification and hybridization usage of CIMMYT wheat germplasms. Chinese Agricultural Science Bulletin 29(33):56–61. Article in Chinese with abstract in English. (G7010.02.01)

Abstract: In order to improve wheat germplasm diversity, increase wheat yield and quality, agronomic and quality characters were evaluated for 145 foreign wheat germplasms in the field in southern Shanxi Province. The results showed that, these germplasms were weak vernal wheat, which might be sown on late Oct. as germplasm use in southern Shanxi Province. The coefficients of variance of spikes per plant, kernels per spike, 1000-grain weight and yield were 15.7%, 16.03%, 12.23% and 23.96% respectively. Most of the germplasms had better intergrated traits, especially in seed gluten. Agronomic traits had greater genetic diversity. Plant height and 1000-grain weight had significantly correlation with yield. Thirty-two germplasms yielded more than 3750 kg/hm2. We selected 8 trong gluten wheat germplasms and 35 better intergrated traits germplasms which had large spike, spikelets with many kernels as key germplasms for breeding. We adjusted the sowing date to meet flowering of these materials for hybridization with good local strains and produced abundant F₃, BCF₂ and BC₁F₁ generation. New drought-tolerance materials and strains with large spike and high yielding may be selected from the CIMMYT generations.

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