| 摘要: |
| 以不修剪为对照,分析了5种修剪措施对苹果幼树生物量的影响。结果表明,不修剪>冬季轻剪>生长季节修剪>冬季轻剪+生长季节修剪>冬季重剪,说明修剪对苹果幼树生物量的生长有一定的抑制作用。不同修剪措施中,冬季重剪对苹果幼树生物量的生长抑制作用最强,树冠小且无花芽形成,并对根系生物量的抑制作用强于地上部生物量;冬季轻剪对树体生物量的抑制作用小,但花芽数量、重量均小;生长季节修剪对地上部生物量的生长抑制作用较强,但对根系生物量的生长有促进作用,且花芽量多;冬季轻剪+生长季节修剪与生长季节修剪相比,效果相似,但花芽量略多,树体生物量略小,对地上部分的抑制作用略强。 |
| 关键词: 修剪措施 苹果幼树 幼树生物量 |
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| 基金项目:中国科学院知识创新工程项目(KZCXI-06)；国家“十五”科技攻关项目(2004BA508B14)；科技部重点科技项目(2002BA901A43) |
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| Effect of different pruning treatments on young apple tree's biomass |
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| Abstract: |
| The results of 5 pruning treatments show that pruning inhibits the growth of young apple tree's biomass.These pruning treatments are the follwings:the tree's biomass of No pruning>Winter gentle pruning>Growth season pruning>Winter gentle pruning+Growth season pruning>Winter heavy pruning.Winter heavy pruning is the strongest in inhibiting the growth of tree's biomass,and its inbitition on tree's growth in roots is stronger than in over-ground,resulting in smallest crown and no flower bud.Winter gentle pruning is the weakest in inhibition but the trees have few flower buds and the weight of flower bud is light.Growth season pruning inhibiting tree's biomass in over-ground is stronger than in roots,but the tree has more flower buds.The effect of Winter gentle pruning+Growth season pruning is the same as that of Summer pruning,but Winter gentle pruning + Growth season prunings inhibition tree's biomass in over-ground is stronger than Growth season pruning,and the trees have less biomass and more flower buds. |
| Key words: pruning treatment young apple trees biomass of young apple trees |
