葱苗性状、移栽方式对大葱产量的多元回归分析

Multiple Regression Analysis of Seedling Characters and Transplanting Modes on Yield of Welsh Onion

以章丘大葱"大梧桐"品种为试材,研究了秋季育苗和春季育苗、切葱叶和不切葱叶、葱苗大小分级处理对大葱株高、葱白长、葱白直径、单株重以及单位面积产量的影响。结果表明:在本试验条件下以秋不切葱叶1级苗处理的总体农艺性状表现最好。葱苗大小对大葱各农艺性状影响显著;切葱叶显著降低大葱叶片数,但对1级苗产量影响较小,对2级苗和3级苗的产量影响较大;秋季育苗的株高和葱白长显著高于春季育苗。葱白直径和株高显著影响大葱单株重和单位面积产量。

Using Zhangqiu Welsh onion variety Dawutong as material , the effects of seedling in autumn or spring , cutting or not cutting leaves , and grading treatment of seedling size on its agronomic characters in-cluding plant height, stalk length, stalk diameter, single plant weight and yield per 666.7m2 were studied. The results showed that using the grade 1 seedlings bred in autumn and not cutting leaves , the Welsh onion could obtain the best agronomic characters .The seedling size significantly affected the related agronomic char-acters.Cutting leaves reduced the leaf number of adult plants significantly , and obviously reduced the yield of grade 2 and 3 seedling treatments , but had little effects on yield of grade 1 seedling treatments .The plant height and stalk length were significantly higher using the seedlings bred in autumn .The stalk diameter and plant height of Welsh onion could significantly affect the single plant weight and yield per 666.7m2 .