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葡萄的成熟主要取决于光合产物的积累量是否达到了一定的要求。由于植株每天所制造的光合产物总量是一定的,在坐果率高的情况下。单粒果实每天的光合产物积累就相对降低,以致延迟成熟。经多次试验证明,在葡萄灌
The maturity of grapes mainly depends on whether the accumulation of photosynthetic products meets certain requirements. Since the total amount of photosynthate produced by plants per day is constant, the rate of fruit set is high. The daily accumulation of photosynthate of single fruit is relatively reduced, resulting in the delay of maturity. After many tests proved that in grape irrigation