硅对甜瓜早熟性及光合特性的影响*

园艺学报 ›› 2001, Vol. 28 ›› Issue (5): 421-424.

硅对甜瓜早熟性及光合特性的影响^*

卢钢;曹家树

( 浙江大学蔬菜研究所, 杭州310029)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-10-25 发布日期:2001-10-25

Effects of silicon on earliness and photosynthetic characteristics of melon

Lu Gang and Cao Jiashu

(Institute of Vegetable Science, Zhej iang University , Hangz hou 310029)

Received:1900-01-01 Revised:1900-01-01 Online:2001-10-25 Published:2001-10-25

摘要/Abstract

摘要： 在水培条件下, 以不同熟性甜瓜品种为材料, 研究了适度低温条件下, 营养液中硅对甜瓜生长、光合作用以及早熟性的影响。结果表明, 供硅处理可以增加植株根冠比, 提高地上部与地下部硅含量。与缺硅植株相比, 施硅可以明显地提高两个品种叶绿素含量, 不同程度地增强光合速率, 降低蒸腾速率。使得甜瓜品种􀀂 Starship 开花期提前, 坐果节位降低,化果率明显下降, 从而显著地提高早期产量。

关键词: 甜瓜, 硅, 早熟性

Abstract: To study the effects of silicon on the growth and photosynthetic haracteristics of melon ( Cucumis melon L. ) , two cultivars were grown in a hydroponics system containing 1. 0 mmol#L- 1Si( as sodium silicate) in early spring under low temperature, 10- 15 % . There were no effects of supplementary silicate on shoot growth; however, the fresh weight of root and the root/ shoot rat io in both varieties were significantly increased. Plants grown in the presence of Si showed a significant increase in early yield, which was resulted from earlier flowering, lower fruiting node and decreasing fruit abortion. Addition of silicon in the solut ion caused a significant increase in chlorophyll contents in both varieties and Si contents in leaves and roots, but an obviously reduction in transpiration.

Key words: Cucumis melon L., Silicon, Earliness

中图分类号:

S 652􀀁

卢钢;曹家树. 硅对甜瓜早熟性及光合特性的影响^*[J]. 园艺学报, 2001, 28(5): 421-424.

Lu Gang and Cao Jiashu. Effects of silicon on earliness and photosynthetic characteristics of melon[J]. ACTA HORTICULTURAE SINICA, 2001, 28(5): 421-424.

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