叶用银杏品种、形态指标与产量相关性及选择

采用35个银杏品种的单株无性系,随机区组排列,对叶形态指标及其与叶产量的相关性进行了研究 方差分析结果显示各品种间在平均叶长,叶宽,叶厚,叶面积和单叶重均存在显著差异 较好品种的叶面积和叶重分别是较弱品种的2 04和2 71倍 叶形态指标与叶重的相关分析表明,叶长、叶厚、叶面积与叶重存在显著相关性 相关系数为0 287～0 489 也就是说叶长、叶厚、叶面积直接决定了银杏的叶产量 因此,叶长、叶厚、叶面积可以作为划分叶用品种的依据,在试验条件下,初步提出了叶用银杏品种产量性状选择的项目和标准,并筛选出了马铃3号叶用品种

Correlation and Selectivity of Leaf-used Ginkgo Vaviety,Leaf Form Indicator and Leaf Output

35 Ginkgo biloba single nonsexual tresses of different varieties were arranged by random block and the relation between the leaf form indicator and the leaf output was researched. The result of variance analysis showed conspicuous difference between each variety on the average leaf length,leaf width,leaf thickness,leaf area and the single leaf weight. The leaf area of the best variety is 2.04 times as the worst variety,and the leaf weight of the best is 2.71 times as the worst one. The correlative analysis of leaf form indicator and leaf weight shows conspicuous correlation between leaf length,leaf width leaf area,leaf thickness and leaf weight. The correlative coefficient is 0.287 to 0.489. That is the leaf length,leaf thickness,leaf area directly determinate the leaf output of the Ginkgo biloba. Therefore the leaf length, leaf thickness, leaf area can be used to differentiate the leaf-used varieties. This experiment initially suggests the item and criterion of the variety output about leaf-used Ginkgo biloba. It also selects a leaf-used variety Ma Ling No.3.