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为探明桂味荔枝花穗修剪的适宜时期,以不修剪花穗为对照,在花穗生长早期(长度5~8cm)、中期(长度15~20cm)和后期(花穗长定)分别实施修剪处理(主轴摘顶,侧穗仅留3~4条且摘顶),对不同处理的花果发育情况进行了调查。结果表明,不同时期修剪花穗对花穗分枝级数、单果质量、可溶性固形物含量和可食率均无显著影响,但都能有效缩短花穗长度和减少侧支穗数。在花穗生长中期修剪花穗,还能明显提高单穗挂果数和产量,综合效果最好。
In order to explore the proper period of spike pruning of Guangxi litchi, the spikelets were used as the control, and the spikelet length was 5 ~ 8cm, the mid-length (length 15 ~ 20cm) and the late Pruning (spindle pick-up, side spike leaving only 3 to 4 and pick the top), the treatment of different development of fruit were investigated. The results showed that pruning spikes at different stages had no significant effect on the spikelet number, fruit quality, soluble solids content and edible percentage, but all of them could shorten the spike length and decrease the number of lateral branches. Pruning spikes in the mid-spike growth, but also significantly improve the number and yield per panicle fruit, the best overall results.