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本文研究了茄子不同品种的群体结构与产量构成因素的变异,大田群体的不同叶层的光强分布及一天中的变化。当太阳光照射到大田以后,大部分为叶面所吸收,但也有一部分被反射及透光。 试验还测定了茄子光合作用强度因光照强度及叶龄的不同所发生的差异。夏季中午的光合作用强度有“午睡”现象。光合作用的饱和点在2.5─3万米烛光左右,而补偿点在500─1,000米烛光之间。 叶龄15─35天是光合作用最旺盛的时期。也是相当于单叶面积绝对生长量最大而叶绿素含量最高的时期。计算群体的光合作用时,不仅要考虑群体的光强的垂直分布,而且要考虑到不同叶龄的垂直分布。在生产上的整枝摘叶措施,应利用这一特性。
In this paper, we studied the variation of population structure and yield components in different varieties of eggplant, the light intensity distribution and the changes in the daytime of different leaf layers in the field population. When the sun shines on the field, most of them are absorbed by the foliage, but some are reflected and transmitted. The experiment also determined the differences of intensity of photosynthesis of eggplant due to light intensity and leaf age. Summer noon photosynthesis intensity “nap” phenomenon. Photosynthesis saturation point in the 2.5 ─ 30,000 meters candlelight around, and the compensation point between 500-1,000 meters candlelight. Leaf age 15 ─ 35 days is the most vigorous period of photosynthesis. Is equivalent to the largest single leaf area absolute growth and chlorophyll content of the highest period. When calculating the photosynthesis of a population, not only the vertical distribution of light intensity of the population should be taken into account, but also the vertical distribution of leaf age should be considered. Pruning leaves in the production of measures should take advantage of this feature.