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以13年生‘红灯’甜樱桃(Prunus avium L.)为试材,应用树冠分格方法,研究了树冠透光和郁闭两种冠型内相对光照强度及其果实品质和产量的差异,以及相对光照强度与果实产量品质的关系。结果表明,两种树冠内相对光照强度均自下而上逐渐增高,透光和郁闭树冠小于30%的相对光照区域分别占树冠总体积的25.23%和52.78%。透光树冠果实分布均匀,主要集中在树冠1.5～2.5m的高度;而郁闭树冠果实分布差异较大,主要在树冠的外围和上部;产量分别是9.02t.hm-2和3.53t.hm-2。果实品质因素与相对光照强度的回归分析表明:樱桃单果质量、果实硬度、果实可溶性固形物含量、可滴定酸含量、固酸比最佳的相对光照强度值分别为76.52%、46.84%、100.00%、41.63%和75.77%。
Using the 13-year-old ’Red Light’ sweet cherry (Prunus avium L.) as test material, this paper studied the relative light intensities and their differences in fruit quality and yield between two types of canopy, And the relationship between relative light intensity and fruit yield and quality. The results showed that the relative light intensities of the two canopy trees increased from bottom to top, and the relative illumination area with less than 30% of canopy and canopy crown accounted for 25.23% and 52.78% of the total canopy volume, respectively. The crown of the light-translucent crown was distributed evenly, mainly concentrated in the crown of 1.5 ~ 2.5m. The fruit distribution of the canopy crown varied greatly, mainly in the periphery and upper part of the canopy. The yields were 9.02t.hm-2 and 3.53t.hm -2. The regression analysis of fruit quality factors and relative light intensity showed that the optimal relative light intensity values were 76.52%, 46.84% and 100.00% respectively, which were the fruit quality, fruit firmness, soluble solids content, titratable acid content and solid acid ratio. , 41.63% and 75.77% respectively.