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通过调查鲁甸核桃604株成年结果树的物候特征、植物学特性、坚果的经济性状及丰产性得出:鲁甸县核桃种质资源萌芽期为2月上旬至4月上旬,集中期为2月下旬到3月中旬,雌雄花开放期集中在3月中下旬至4月上旬,果实成熟期集中在9月至10月;植物学上,在叶形、枝条颜色、雌花柱头、子房颜色、雄花序长度、青果性状等方面存在多样性;鲁甸核桃每果枝坐果数为1~7,还有串串核桃的存在,丰产性好;在树形方面,表现为自然圆头形、自然开心形、自然分层形、自然圆锥形的多样性,核桃坚果的三径均值、出仁率、仁重、单果重、壳厚的变异系数分别为9.48%、13.46%、24.05%、25.46%、25.74%,多样性较丰富。
By investigating the phenological characteristics, the botanical characteristics, the economic traits and the high yield of 604 adults of Ludian walnut, the results showed that the germination period of Luding walnut germplasm was from early February to early April and the concentration period was 2 From late March to mid-March, the male and female flowers are open in the middle and late March to early April, and the fruit ripening period is concentrated from September to October. In botany, the leaf shape, the branch color, the female stigma, the ovary color , The length of male inflorescences, the characters of green fruits and other aspects of diversity; Ludian walnut fruiting branches per fruit number of 1 to 7, as well as the presence of string of walnuts, high yield good; in the tree, the performance of the natural round-shaped, natural The coefficient of variation of happy-shaped, natural-layered and natural conical, the average of three diameters of walnut, the percentage of kernel yield, kernel weight, fruit weight and shell thickness were 9.48%, 13.46%, 24.05% and 25.46% , 25.74%, diversity is more abundant.