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中国农学通报 ›› 2008, Vol. 24 ›› Issue (10): 347-350.

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

富士苹果不同树形的光能分布及利用

厉恩茂,杨阳,陈锋,翟衡   

  • 收稿日期:2008-06-28 修回日期:2008-07-29 出版日期:2008-10-05 发布日期:2008-10-05

The light distribution of different tree shapes and light utilization in “Fuji” apple tree

  • Received:2008-06-28 Revised:2008-07-29 Online:2008-10-05 Published:2008-10-05

摘要: 为了探索苹果不同树形树冠内相对光照强度分布的差异及光能利用状况,以富士苹果(Malus domestica Borkh cv. Fuji)为试材,测定了6种树形冠层内的相对光照分布、叶片的光合速率、比叶重、光合色素等,结果表明,高干开心形和小冠疏层形树冠内光照强度显著高于其它树形,双层形、拟纺锤形次之,大冠的疏散分层和自然开心两种树形光照较差,尤其是疏散分层形集中结果部位正处于相对光照强度急剧下降的50-100cm近地冠层内;小冠树形的光照水平及光能利用情况明显优于大冠树形;比叶重、光合色素受冠层内光照水平的影响显著。综合来看在使用乔化砧木的条件下,高干开心、小冠疏层形的光照水平较好,是生产上适宜采用的树形。

关键词: 杂交水稻, 杂交水稻, 特优649, 产业化技术

Abstract: In order to get insight into the light distribution and light energy utilization of six types of tree shapes, the distribution of relative light radiation and its effects on photosynthetic rate, specific leaf weight and photosynthetic pigment content were detected and evaluated in different tree shapes of Fuji apple. Results showed that the relative light level and light energy utilization of high stem and open center shape as well as small and sparse canopy shape were better than others tested. Double canopy shape and spindle shape took second place, while big canopy shape and center shape had the lowest light distribution. Light distribution effected distinctly on specific leaf weight and chlorophl content in all tree shapes tested. In six tree shapes, the light distribution intensities of high stem and open center shape as well as small and sparse canopy were suitable for apple production。

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