1.越冬老叶在越冬前净光合强度最高,到了春茶采摘期光合能力即很微弱. 2.茶树单叶的净光合强度均呈现夏高,秋次,春最低的趋势. 3.新梢叶片叶龄不同光合强度不同,新叶在展开后六天净光合强度达最大值,此后有随叶龄增大而逐渐下降的趋势. 4.同一枝梢上不同叶位叶片的净光合强 1. The overwintering old leaves had the highest net photosynthetic intensity before the winter, and the photosynthetic capacity at the picking stage of spring tea was very weak.2.The net photosynthetic intensity of single leaves showed the lowest trend in summer, autumn and spring. The photosynthetic intensity of different leaf age was different, the net photosynthetic intensity of new leaf reached its maximum six days after its development, then decreased gradually with leaf age.4.The net photosynthetic capacity of leaves with different leaf positions on the same shoot