Effects of supplemental lighting and fruit thinning on fruit yield and source-sink relations of greenhouse tomato plants
Effects of supplemental lighting and fruit thinning on fruit yield and source-sink relations of greenhouse tomato plants
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DOI：
10.2503/jjshs.65.595
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发表时间：
1996-12-01
影响因子：
--
通讯作者：
Dafiri, M
中科院分区：
文献类型：
--
作者：
Gosselin, A;Xu, HL;Dafiri, M
这项研究的目的是通过将簇减少到适当的尺寸来确定最佳的源水槽关系，以最大化在补充照明下生长的番茄植物的果实产量（SL）。 SL从50 mu摩尔（-2）增加增加到150 mu。 S（-1）导致总果实产量和可销售水果的百分比增加。大型群集的大小减少了可售水果的百分比。 SL为150 mu mol。 M（-2）。 S（-1）果实稀疏可防止可销售的果实产量的降低。使用150 mu mol的SL。 M（-2）。 S（-1）增加了光合作用，糖和淀粉一（叶片）一百万。水果变薄导致叶片中葡萄糖，果糖和淀粉含量的增加，但光合速率降低。大型集群大小，代表了高光合作用的需求，糖和淀粉含量降低并提高了光合速率。 150 mu mol的SL的组合。 M（-2）。在低自然光期间，带有3种水果/簇的S（-1）似乎是更好的源水槽平衡。
The purpose of this study is to determine an optimal source sink relationship by pruning clusters to an appropriate size to maximize fruit yield of tomato plants grown under supplemental lighting (SL). An increase in SL from 50 to 150 mu mol .(-2). s(-1) resulted in an increase in total fruit yield and percentage of marketable fruit. Large cluster size decreased percentage of marketable fruit. A SL of 150 mu mol . m(-2). s(-1) with fruit thinning prevented the reduction in marketable fruit yield. Using a SL of 150 mu mol . m(-2). s(-1) increased photosynthesis and sugars and starch centent in leaf. Fruit thinning caused an increase in glucose, fructose, and starch content in leaf but a reduction in photosynthetic rate. A large cluster size, representing a high photosynthate demand, decreased sugars and starch content and increased photosynthetic rate. The combination of a SL of 150 mu mol . m(-2). s(-1) with 3 fruit/cluster appears to be a better source sink equilibrium during periods of low natural light.