光照强度对板栗生长发育及光合作用的影响
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S664.2

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Effect of Light Intensity on Growth and Photosynthesis of Chestnut
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    摘要:

    对15年金丰、宋家早、粘底板、青毛软刺等板栗品种密植丰产园太阳辐射分布规律、生长发育特性及光合特征进行了研究,结果表明,在栗园冠层内,太阳辐射强度自上而下急剧减弱,各类枝条的分布及数量、叶片及栗棚的分布均受太阳辐射分布规律的影响而呈现一定的规律性。在气温适宜时光合速率较高,且有较高的光饱和点;当气温较高时,光合作用受抑,光饱和点也随之下降。板栗的光合日周期呈—双峰曲线。

    Abstract:

    Solar radiation distribution,growth characteristics and photosynthetic characteristics of 15-years-old compact chestnut planting of ’Jinfeng’, ’Songjiazao’, ’Sticky floor’ and ’Green-wool soft-thorn’ were studied.The results showed that within chestnut canopy,the solar radiation intensity reduced sharply from top to down.The distribution of all kinds of branches and leaves,and the number of chestnut fruit distribution were influenced by the solar radiation distribution and showed certain regularity.When air temperature was proper,photosynthesis rate and light saturation point was higher.When the temperature was higher,photosynthesis was inhabited and the light saturation point lower.The photosynthetic rate of chestnut showed a double-peak curve in a day.

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孙永杰.光照强度对板栗生长发育及光合作用的影响[J].东北农业科学,2012,37(3):49-51.

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  • 收稿日期:2012-03-13
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  • 在线发布日期: 2024-12-06
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