Study of Pollinizer Screen-out for Juglans sigillata Variety Yangbidapao

Flowering period of female and male of five varities of Juglans sigillata,including Yangbidapao,Santai,Niangqing,Yuanboluo and Yangza No.2 were investigated and compared.Pollination compatibility experiment was conducted which taking Yangbidapao as female parent and other cultivars as male parent.Fruit setting rate and preserving rate after pollinating were analyzed.The results showed that average fruit setting rate was over 70 %.The highest fruit setting rate and preserving rate was 93.25 % and 73.01 % from Yangza No.2,but its male flowering period was inconsistency with female flower of Yangbidapao.The poorest performance was Yuanboluo with fruit setting rate of 72.29 % and preserving rate of 55.37 %.Niangqing was the best pollination variety for Yangbidapao because of its good pollination compatibility,same flowering period,high fruit setting rate and preserving rate of 91.67 % and 71.81 % respectively.The test results provided the reference for production and selection of pollination varieties of Yangbidapao.

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