剪叶对日光温室硬果型番茄群体光能利用性能的调控效应

采用密植剪半叶技术,即在日光温室硬果型番茄密度增加17%～30%时,对膨果中期的果穗下位叶剪去叶片的1/3～1/2,保持株幅重叠率ξp在10%～20%之间,取得了改善冠层中下层光能截获性能和提高群体光合效能的双重效果,可以使日光温室番茄增产14.6%～20.0%.而膨果初期剪叶则会明显降低坐果率和单果重,致使单株产量降...

Regulating effect of leaf-cutting on light energy utilization of firm-fleshed tomato in greenhouse

Using techniques of cutting half leaf,ear inferior leaves were cut 1/3-1/2 at fruit expanding stage to maintain overlap rate of plant width(ξp) between 10% and 20% when the planting density increased by 17%-30%,and to achieve the double effect of improving the light energy interception of middle and lower canopy and enhancing the group photosynthetic capacity,meanwhile the increasing yield was 14.6% and 20.0%.However,leaf-cutting at initial stage of fruit expanding significantly reduced fruit setting rate and average fruit weight,resulting in the yield reduction percentage at 26.97 per plant.And the fruit setting rate and average fruit weight also decreased when the ear superior and inferior leaves were cut,resulting in yield reduction at 21.73 per plant.