摘要
对自交不亲和品种苹香梨授粉、受精生殖生物学进行了研究。结果表明:苹香梨不同时期采集花粉活力差异较大,花序分离期为8.64%,小蕾期为9.01%,大蕾期为31.09%;有效授粉期为6 d,柱头接受花粉的能力为9 d;自交授粉后花粉可在柱头表面萌发,花粉管生长正常,生长到花柱中下部后停止生长,顶端膨大,不能够到达胚囊完成受精过程;花粉直感效应影响到果实形态、萼片宿存、可溶性固形物含量、坐果率等指标的变化。
The experiment studied different periods of time collecting pollen vigor,self-pollination pollen germination and pollen tube growth in style with performance-pollinated varieties of Metaxenia on fruit quality.The Pingxiangli tree were used in the experiment.The main results were followed：The Pingxiangli flowers different time gathering pollen vigor difference was big,the inflorescence separation time was 8.64%,the flower bud time was 9.01%,the big flower bud time was 31.09%. The effective pollination period of Pingxiangli was 6 days, the stigma accepted pollen ability to 9 days. Pingxiangli self-pollination, pollen germination in the face stigma, the normal tube growth. The central tube growth style changed to stop the growth of pollen tube tip enlargement, can not reach the embryo sac and the completion of the process of fertilization. The Pingxiangli used pollination of the different variety Metaxenia obvious role. In the fruit index, SSC,the calyx escapes rate, percentage of flowers which actually became fruit aspects and so on , the existence of the phenomenon Metaxenia.
出处
《北方园艺》
CAS
北大核心
2009年第11期84-86,共3页
Northern Horticulture
关键词
苹香梨
授粉
有效授粉期
花粉直感
Pingxiangli（Pyrus ussuriensis）
Pollination
Effective pollination of period
Pollination metaxenia
