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Study on Pollen Chromosome Doubling in Zenjimaru Persimmon
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作者 GU Xiao-feng and LUO Zheng-rongCollege of Horticulture and Forestry, Huazhong Agricultural University, Wuhan 430070, P.R.China 《Agricultural Sciences in China》 CAS CSCD 2003年第3期304-307,F003,共5页
The factors influencing pollen chromosome doubling in Zenjimaru persimmon were studied, based on the knowledge of meiosis process of pollen mother cells. The results showed: (1) the suitable concentration of colchicin... The factors influencing pollen chromosome doubling in Zenjimaru persimmon were studied, based on the knowledge of meiosis process of pollen mother cells. The results showed: (1) the suitable concentration of colchicine was 0.3-0. 5%; (2) the best doubling effect could be obtained during the period from the diplotene stage to the diakinasis stage, and the highest proportion was up to 40.6%; (3) considering giant pollen ratio and proportion of staminate-flower collection, the better treating frequency was 3 times; (4) giant pollen, which formed mainly from dyad and had bigger cell nucleus volume, was unreduced and hexaploid. 展开更多
关键词 pERSIMMOn 2n pollen Chromosome doubling colchicinE MEIOSIS
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