不同荔枝花粉源对桂味坐果及种子大小的影响

采用不同荔枝品种花粉对桂味进行人工授粉,探讨了不同花粉源对桂味坐果、可食率及种子大小的影响.结果表明:采用妃子笑、将军荔和桂味花粉进行授粉,桂味的座果率相对较低,可能与花粉发芽率及花粉相容程度有关;采用妃子笑、糯米糍、黑叶和桂味花粉进行授粉,桂味的焦核率相对较高,果实可食率也较高;采用淮枝、黑叶、红绣球、雪怀子、将军荔、尚书怀等品种花粉进行授粉,桂味的焦核率降低,说明花粉源可能是影响桂味大核化现象的主要原因之一.

Effects of different pollen sources on fruit-set and seed size in Guiwei Litchi

The effects of different pollen sources on fruit-set, edible rate and seed size in.Guiwei Litchi were studied in this paper. The results showed that when pollinated by Feizixiao, Jiangjunli or Guiwei itself when , the fruit rate of Guiwei was lower relatively, which may be associated with their lower pollen germination rate and pollen-stigma affinity. When pollinated by Feizixiao, Nuomici, Heiye or Guiwei, the wilted-nut rate and edible rate of Guiwei fruit were higher. When pollinated by Huaizhi, Heiye, Hongxiuqiu, Xuehuaizi, Jiangjunli or Shangshuhuai, the wilted-nut rate of Guiwei fruit was decreased. These results further proved that the pollen source was one of the main cause for the normalization of Guiwei Litchi seed.