【作者】 覃艳芬； 朱根发； 彭永宏；

【Author】 QIN Yan-fen~(1,2) ZHU Gen-fa~(1,2) PENG Yong-hong~2 (1 Guangdong Key Lab of Ornamental Plant Germplasm Innovation and Utilization,Floricultural Research Institute of Guangdong Academy of Agricultural Sciences,Guangzhou 510640;2 College of Life Science, South Normal University,Guangzhou 510640)

【机构】 广东省园林花卉种质创新综合利用重点实验室广东农业科学院花卉研究所； 广州华南师范大学生命科学院；

【摘要】 对4种兜兰属植物进行AA式完全双列杂交,共获得4个自交组合与12个杂交组合果荚,总授粉花朵数为641朵,总获果数为477个,结实率为74.42%,其中,自交总授粉花朵数为193朵,成功获果127个,结实率为65.80%,杂交总授粉花朵数为448朵,成功获得350个果荚,结实率为78.1 3%。各组合果荚生长曲线走势大致相同,授粉后4～6天可见柱头稍膨大,7～11天子房开始膨大,于60～90天基本趋于平稳。4种兜兰之间的杂交结实率与其亲缘关系基本吻合。更多还原

【Abstract】 Complete diallel crossing among 4 species of Paphiopedilum were carried out 4 self-combinations and 12 cross-combinations were acquired.477 capsules of 16 combinations were attained successfully from 641 pollinated flowers of 16 combinations. The percentage of fecundity was 74.42%of which the percentage of self-combinations was 65.80%whose capsules were 127 and pollinated flowers were 193 and 78.13%for cross-combinations whose capsules were 350 and pollinated flowers were 448.The growth trend of various capsules was approximate.Chapiter expanded a little after pollination for about 4 to 6 days.The sepal and petal began to crimple after 7 to 11 days and capsules began to expand simultaneously.It arrived to the maximum and held the line after 60 to 90 days.更多还原