疏花对无核荔枝果实和树体营养的影响

为了研究疏花对无核荔枝果实和树体营养的影响,以不疏花为对照,在初花期对其进行疏花处理,统计疏花量、记录果实发育情况及成熟日期,并测定果实成熟时的品质和整个过程中树体叶片营养变化情况。据统计,每株树的平均疏花量达到80%-90%左右,疏掉的小穗数、支穗数和侧穗数分别为89.81%、89.74%、81.82%。试验结果表明,疏花使无核荔枝的果实发育情况及果实成熟时的可食率、单果重、总糖、维生素C、还原糖均高于对照；果实成熟时,平均单株产量提高70.59%；疏花处理的果实成熟期较对照提前7天左右；该过程中树体叶片N、P、K、S、Ca、Mg含量在前期高于而后期稍低于对照。疏花加快了无核荔枝果实生长发育,并提高了果实的产量和品质。

Effect of thinning flower on the fruits and nutrition of seedless lichee

In order to study the effect of flower thinning on fruits and the nutrition of trees on seedless litchi, the seedless litchi were treated with flower thinning in the early flowering period, the amount of flower thinning, the fruit development and maturity date were counted, and the quality of fruit ripening and the nutritional changes of tree leaves during the whole process were measured.According to statistics, the average amount of flower thinning per tree reached about 80-90%, and the number of spikelets, branches and side ears that were thinning were 89.81%, 89.74% and 81.82%, respectively. The results showed that the fruit development, edible rate, fruit weight, total sugar, vitamin C and reducing sugar of thinning flower treatment were higher than those of control group. The average yield per plant increased by 70.59% when the fruit was ripe. The fruit ripening stage was about 7 days earlier than that of the control group. In this process, the contents of N, P, K, S, Ca and Mg in the leaves of the seedless lichee tree of the treatment were higher in the early stage and slightly lower than the control group.