Chinese Bulletin of Botany ›› 2001, Vol. 18 ›› Issue (01): 81-89.
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ZHAO Yu-JinZHAO QiBAI ZhI-LiangWANG Cheng-Xiang LI Zhan-Lu CUI Qing-Ling
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Abstract: Seeds of a pure breeding sorghum ‘Jinliang No.5’(CK) were treat ed by Chinese Reversal Man_made Satellite in 1996. A dwarf and earliness mutant (SP3) was obtained by selection from the returned seeds next year. The mutant has showed dwarf and earliness in subsequent 4 years. Comparing the SP3 with the control, there are many differences as follows: (1) The maturing period of the SP3 was 15 days earlier and the height of SP3 plant was 40 cm shorter than the control. (2) The SP3 ear length inceased 3.9 cm and the kernel number per ear inceased 400. (3) The average 1000_grain weight of SP3 is 34 g and the control was 27 g. (4) The leaves of SP3 are shorter, narrower and thicker. So their leaf area deceased 43%~22%. (5) The length of ear axis for mutant increased 36% and the length of internode reduced 67%~15%. (6)The content of leucine in SP3 seeds increased 15%, soluble sugar of mutant increased 25%,its tannin decreased 30%.
ZHAO Yu-JinZHAO QiBAI ZhI-LiangWANG Cheng-Xiang LI Zhan-Lu CUI Qing-Ling. Study on Sorghum Mutant Induced by Space Flight[J]. Chinese Bulletin of Botany, 2001, 18(01): 81-89.
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