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柑桔在年生长周期中,不同器官发育的时期和生育周期有一定的规律性.以温州密柑为例,一年中枝条抽生可分为春梢、夏梢和秋梢;根的伸长规律和落叶果树相反,春芽伸长期,根系生长缓慢,春梢停止伸长时,根系生长旺盛,夏、秋季根系生长状况也相类似:果实发育周期中有花芽分化、开花、落果、成熟等,这些都与碳代谢关系密切,从光合作用及其产物的运输来看,温州密柑1～3月叶片的光合作用及呼吸作用都很低:4月上旬,随温度的升高,光合作用增强;6月上旬,新叶绿化,进行正常的光合作用,除盛夏高温期光合
Citrus in the annual growth cycle, different organ development period and the growth cycle of a certain regularity.Warm mung bean in Wenzhou, for example, the branches can be divided into spring shoots, summer shoots and autumn shoots; root elongation On the contrary, the long law and the deciduous fruit tree, the spring bud elongation, root growth is slow, the spring shoots stop elongation, root growth, summer and autumn root growth conditions are similar: fruit development cycle flower bud differentiation, flowering, fruit drop, mature These are all closely related to the carbon metabolism. From photosynthesis and transportation of their products, the photosynthesis and respiration of the leaves of Wenzhou Citrus from January to March are very low. In early April, with the increase of temperature, photosynthesis The role of enhanced; early June, the new leaf green, normal photosynthesis, in addition to mid-summer high temperature photosynthesis