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疏雄醇对板栗树叶片几项生理指标的影响赵宗芸刘魁英张文东（河北省农业技术师范学院园艺系，昌黎０６６６００）板栗成龄树每平方米冠影的花序雌雄数之比为１∶１７．７，花朵雌雄数之比为１∶２９９１．３，对其人工疏雄９０％—９５％，至少可保持花朵雌雄数之比为１∶...
Effects of diogenol on several physiological indexes of chestnut leaves ZHAO Zong-yun, LIU Kui-ying, ZHANG Wen-dong (Department of Horticulture, Hebei Agricultural and Technical Teachers College, Changli 066600) The ratio of male and female inflorescences per square meter of chestnut mature tree was 1:17.7 , The ratio of flower male to female is 1: 299.1, which is 90% -95% of its artificial dwarf male, at least the ratio of female to male can be maintained as 1: 1 ...