Biological characterization of flowering and pollination of Prunus salicina Lindl.cv.'Fengtangli'
To investigate the biological characteristics of flowering and pollination of Prunus salicina Lindl.cv.'Fengtangli'and provide a theoretical foundation for floral management and pollinizers allocation in the field,'Fengtangli'and its pollinating cultivars'Siyueli','Fenghuangli',and'Yinhongli'were utilized as the materi-als.The flowering phenology,pollen quantity,pollen viability of'Fengtangli'and its pollinating cultivars,and stig-ma receptivity of'Fengtangli',as well as the fruit set rate of'Fengtangli'with different pollination combinations and different exogenous treatments were investigated.The results showed that the flowering period of the four test cul-tivars were consistent and overlapped with each other.The pollen quantity ranged from 504.76 to 1 622.64 grains.The pollen germination rate ranged from 34.47％to 51.22％,and the pollen viability was ranked as'Fenghuangli'＞'Siyueli'＞'Yinhongli'＞'Fengtangli'.The stigma receptivity of'Fengtangli'was the strongest on the day of flowering.The highest fruit set rate was recorded in'Fenghuangli'pollinated flowers(49.56％),while the lowest fruit set rate was observed in self-pollination(12.20％),indicating that'Fengtangli'and'Fenghuangli'had the highest pollination compatibility and'Fengtangli'was self-compatible.In conclusion,the suitable pollinizers for'Fenghuangli'in this experiment were:'Fenghuangli'＞'Siyueli'＞'Yinhongli'＞'Fengtangli'.In addition,spraying boron during flowering could effectively improve the fruit set rate of'Fengtangli'.
Prunus salicina Lindl.cv.'Fengtangli'floweringpollinationfruit set rateboron
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