摘要
按苹果主干横截面积大小定量留果,并连续2年对叶片光合速率及枝、叶、果的干物质增量进行了测定。结果表明,光合速率与干物质生产间呈极显著正相关(0 9727)关系,随负载量的变化,二者的变化程度有显著差异。虽负载量与干物质间亦呈极显著正相关(0 9741),但均单果得到的光合产物却有显著变化,而且负载量的变化对果实品质及翌年的花芽分化均会产生明显影响。
The fruit numbers were limited according to trunk cross-sectional area. Leaf photosynthetic rate and dry matter accumulation of shoot , leaf and fruit were monitored for 2 years in succession. The results showed that the photosynthetic rate was positively correlated with dry weight(r=0.972 7). With changes of crop load, there were significant differences in the variation level of photosynthetic rate and dry weight. Although crop load was positively correlated with dry weight (r=0.974 1), the content of photosynthetic products transported to fruits changed significantly. Crop load had a significant effect on fruit quality and flower bud differentiation rate in the next year.
出处
《华北农学报》
CSCD
北大核心
2003年第F09期131-132,共2页
Acta Agriculturae Boreali-Sinica
