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本文对二十世纪梨园进行了调查和试验,阐述了光条件对果实品质的影响;并着重提出梨园间伐以改善光照条件。一、果枝叶的光量与果实品质试材为常年一、二级果率在70%以上的优良园,品种为30年生的二十世纪梨树,对着果数8～12个的4～6年生侧枝,作光量为80～20%的各种光处理。首先,从果丛叶的光量与果实形状的关系看出,果丛叶的光量越少,则果实越小。而且光量在40～
This paper investigates and tests the pear orchard in the 20th century, expounds the influence of light conditions on the fruit quality, and emphasizes the intercropping of pear orchard to improve the light conditions. First, fruit and leaves of the light quality and quality of the test material for the perennial one, two fruit rate of 70% or more in the fine garden, the species is 30 years of 20th century pear, against the fruit number 8 to 12 4 to 6 Annuals of the collateral, for light intensity of 80 to 20% of various light treatment. First of all, judging from the relationship between the amount of light and the shape of the fruit, the smaller the amount of light and the smaller the fruit. And the amount of light in 40 ~