决定作物生长最重要的因素之一,是植株接收的日光量.冬小麦生长的地区,晚春封行以前的生长季节前期(秋、冬、早春)太阳辐射的截获量特别重要.在比较冷的时期内,叶子吸收辐射量的多少是很重要的,因为辐射不仅为光合作用提供能量,还为生长提供温度.Kirkham等1980年报道,用八个冬小麦品种的试验表明,封行前不同品种截获的辐射不同.生育前期截获辐射越多的品种,籽粒产量就越高. One of the most important determinants of crop growth is the amount of sunlight the plants receive.The interception of solar radiation in the areas where winter wheat is growing and in the early growth seasons (autumn, winter and early spring) of the late spring was particularly important.In the colder periods It is important that the leaf and leaf absorb the amount of radiation as the radiation not only provides energy for photosynthesis but also provides temperature for growth.Kirkham et al reported in 1980 that testing with eight winter wheat varieties showed that intercepted Different radiation. Early interception of radiation more varieties, the higher grain yield.