不同李品种花粉量及花粉萌发率差异研究OA

Under in vitro conditions,the pollen quantity and pollen germination rate of 84 plum varieties were measured and compared to investigate their differences.The results showed that there were significant differences in pollen quantity and pollen germination rate among plum varieties.The pollen quantity per anther ranged from 41.67 to 2 583.33 grains,with an average of 804.56 grains.The pollen germination rate varied from 4.30％to 69.84％,with an average of 30.29％.Among them,the pollen amount of Wushancuili was the highest,and that of Zaoqinggan was the lowest.The pollen germination rate of Meiweili was the highest,and that of Zaotianxin was the lowest.Average distance cluster analysis was carried out on the pollen quantity and germination rate.The tested varieties were divided into 4 groups.The 21 varieties,including Shangwangwuyueli,Furongli and Xianfengli,were low in pollen quantity and germination rate,which were not suitable for serving as pollinizer in production.Due to high pollen quantity and germination rate,Zhenzhuli and Yuananliuyueli were selected as pollinizer varieties.