“香玲”核桃结果母枝与结果枝性状相关性研究

Character Correlation Study of ‘Xiangling’ Walnut Fruiting Mother Branch and Fruiting Branch

以3年生"香玲"核桃幼树为材料,调查分析了结果母枝与结果枝间的性状相关性。结果表明,3年生"香玲"核桃幼树结果母枝长度集中在20.1~60.0cm,母枝粗度集中在10.1~25.0mm;结果枝长度集中在5.1~45.0cm,结果枝粗度集中在5.0~11.0mm;结果母枝长度和粗度与其抽生的结果枝个数、结果枝长、结果枝粗、坐果数及复叶数等5个性状间均呈极显著正相关,说明结果母枝是构成产量的重要因素,其生长发育的好坏,决定了结果枝的数量和质量。

By using 3 years old ＇Xiangling＇ walnut saplings as research objective, character correlation is analyzed between fruit- ing mother branch and fruiting branch. The result shows that the length of 3 years old ＇Xiangling＇ walnut fruiting mother bran- ches is from 20. 1~60. 0 cm, thickness is from 10.1 425.0 m; the length of fruiting branches is from 5.1~45.0 cm, thickness is from 5.01~11.0 mm; the length and thickness of fruiting mother branches have positive correlation with number, length, thickness of fruiting branches, and number of fruits and compound leaves, which means fruiting mother branches are the key fac- tor to volume of fruits; its quality is also critical to number and quality of fruiting branches.