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核桃花单性,雌雄同株,雄花序为葇荑花 序,风媒花,某特点之一是产生过量的花粉。通过万株的试验表明,去除雄花芽平均可增产46%。为了探索去雄增产的原因,就核桃雄花芽及雄花序对水分和养分的消耗进行了调查和测试。 测试样品采自山西省蒲县白家庄林场,试验材料为18年生汾阳核桃,株行距8×8米,冠幅7米,树势中等.机械抽样60株,4月下旬,调查全树雄花序量,平均每株约2000(1965±169)个
Walnut flower unisexual, hermaphroditism, male inflorescences for the catkin inflorescence, wind flower, one of the characteristics is the generation of excessive pollen. The test of 10,000 strains showed that the average yield of male flower buds could be increased by 46%. In order to explore the reasons for increasing heritability, the water and nutrient consumption of male flower buds and male inflorescences of walnut were investigated and tested. The test samples were collected from the Baijiazhuang Forest Farm in Puxian County, Shanxi Province, and the materials for the experiment were Fenyang walnut with 18-year-old line spacing of 8 × 8 meters with a crown width of 7 meters and medium tree vigor. Sixty mechanical samples were collected in late April. The average number of male inflorescences is about 2000 (1965 ± 169) per plant