摘要
研究了库调节对温室番茄(LycopersiconesculentumMill.)品种“Capita”干物质生产与分配的影响。结果表明,温室番茄干物质生产主要由LAI决定而与果穗座果数无直接关联,在果穗修剪为恒定的6(或3)个果实时,叶片修剪能显著降低LAI,从而导致植株总干物质生产的显著降低。增加果穗座果数与叶片修剪均能显著提高植株果实的累积干物质分配率。增加植株密度并不能提高植株果实干物质分配率,但可以提高LAI。高密度处理中单位面积植株果实干重的增加主要是由于总的干物质生产增加的缘故。
Effect of sink regulation on production and distribution of dry matter in greenhouse tomato （Lycopersicon esculentum Mill. cultivar ＇Capita＇） was investigated. The results indicated that the production of dry matter in greenhouse tomato was mainly determined by leaf area index （LAI）, but had no direct relation with the fruit number per truss. With 6 or 3 fruits per truss, leaf pruning significantly decreased LAI; therefore total plant dry matter was significantly decreased. The cumulative fraction of dry matter allocated to the fruits was favored by both the increment of fruit number per truss and leaf pruning. Increasing plant density improved LAI but did not increase the cumulative fraction of dry matter allocated to the fruits. The increment of fruit dry weight in increased plant density mainly resulted from the increment of total dry matter production.
出处
《热带作物学报》
CSCD
2005年第4期24-27,共4页
Chinese Journal of Tropical Crops
基金
国家留学基金委中荷互换NUFFIC奖学金项目(21843046)。
关键词
温室番茄
叶片修剪
果穗修剪
干物质生产
干物质分配
greenhouse tomato leaf pruning truss pruning dry matter production dry matter distribution
