Abstract
A series of comparative studies was carried out on the genetic effects of 25 alien cytoplasms of wheat on the growth potential, heading stage, fertility, resistance against diseases, important agronomic traits and its heterosis of 125 nuclei-cytoplasmic hybrids of wheat. The results indicated that there were clearly effects of alien cytoplasms on some characteristics, but the nucleus still exerted main effect on other characteristics. The effect of interactions between nucleus and cytoplasm was comparative obvious in some combination. Consequently, when we utilize the effects of alien cytoplasms, we should pay full attention to the facts such as the characteristic to be improved, the effects of cytoplasm, nucleus, the nucleus-cytoplasm interactions on that characteristics. From the preliminary studies, we believed that the cytoplasmic types of M0, S1, Sv, D2, D and B, and the nucleo-cytoplasmic hybrids of (Ae. sharonensis)-B174, (Ae. squarrosa)-352-35 (Ae. cylindrica)-352-35, (Ae. cylindria)-E EN-1, (Ae. cylindrica)-NPFP, and (Ae. speltoides)-352-35 would have some utilization potentiality in cultivar improvement.
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Foundation item: supported by the Foundation of National 8th Five-year-plan of China
Biography: CHEN Jun-ying, (1964-), male, lecturer, and now worked in Henan Agricultural University, Zhengzhou 450002, China
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Jun-ying, C., Nai-yu, X. Studies on the utilization potentiality of the nucleo-cytoplasmic hybrid in wheat. Wuhan Univ. J. Nat. Sci. 5, 114–118 (2000). https://doi.org/10.1007/BF02828325
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DOI: https://doi.org/10.1007/BF02828325
Key words
- the genetic effects of the alien cytoplasms
- nucleo-cytoplasmic hybrids of wheat
- utilization potentiality