【摘要】 以查尔斯4号番茄品种为试验材料，研究不同栽培密度和多次剪叶处理（株距30 cm+不剪叶（T1）、株距30 cm+多次剪叶（T2）、株距45 cm+不剪叶（T3）、株距45 cm+多次剪叶（T4））对植株群落光照环境、番茄光合、产量及品质的影响。结果表明，相同株距下，与不剪叶处理相比，多次剪叶可降低番茄冠层复合光吸收系数和叶面积指数，增加了比叶质量，促进了番茄叶片光合作用，增加了单果质量，但是对番茄产量和品质影响不大。而株距30 cm+多次剪叶（T2）与株距45 cm+不剪叶（T3）具有一致的番茄冠层复合光吸收系数、叶面积指数和比叶质量。与T3处理相比，T2处理的1～3穗果叶片净光合速率和番茄产量均增加，1～3穗果叶片的净光合速率分别增加了47.66%、4.32%和11.48%，产量增加了27.92%，且品质无显著差异。说明在控制一定叶面积指数的前提下，密植+多次剪叶是四川盆地提高番茄光合作用和产量的有效方法。更多还原

【Abstract】 In this study, a tomato variety Charles 4 was used as the experiment material. The effects of different planting density and repeated leaf cutting treatments on the light environment of the tomato plant community, tomato photosynthesis,yield and quality were studied in order to provide certain reference for high-yield and excellent-quality cultivation of tomato in Sichuan basin or the similar poor-light areas. The treatments included the plant spacing of 30 cm + no leaf cutting(T1), the plant spacing of 30 cm + repeated leaf cutting(T2), the plant spacing of 45 cm + no leaf cutting(T3), and the plant spacing of45 cm + repeated leaf cutting(T4). The results showed that under the same plant spacing, compared with no leaf cutting treatment, repeated leaf cutting reduced the canopy composite light absorption coefficient and leaf area index of tomato,increased the specific leaf weight, promoted the photosynthesis of tomato leaves, and increased the single fruit weight, but it had little effect on tomato yield and quality. The tomato canopy composite light absorption coefficient, leaf area index and specific leaf weight were consistent in the treatments of the plant spacing of 30 cm + repeated leaf cutting(T2) and the plant spacing of 45 cm+ no leaf cutting(T3). Compared with T3 treatment, the net photosynthetic rate of 1-3 panicle leaves increased by 47.66%,4.32%, and 11.48%, respectively, and the yield increased by 27.92%, and there was no significant difference in quality. It showed that under the premise of controlling a certain leaf area index, dense planting + repeated leaf cutting was an effective method to improve the photosynthesis and yield of tomato in Sichuan basin.更多还原