摘要:
在水涨龙眼花芽生理分化期(11～12月)及生理落果期(5～6月),分别选用6-BA200mg/L+B92000mg/L及GA310mg/L+2,4-D 5mg/L混合液,进行化控试验。结果表明:小区处理的冬梢增长量及增长率仅为对照的35.03%和37.59%;花穗抽生率比对照增加81.75%,花穗冲梢率仅为对照的15.28%,花穗支穗数增加30.02%,具有明显的促花效应;座果数增加67.40%,果穗重量增加48.00%,平均株产达57.00kg,比对照增产61.61%.生产性处理的花穗抽生率高达90.41%,平均每穗座果数高达46.10个。604株(2.37hm2)试验树总产38744.70kg,平均株产64.20kg,达到目前龙眼生产上的高产水平。
Abstract:
A comprehensive plot experiment of chemical regulation was carried out during the differentiation of flower buds in November-December and physiological fruit drop in May June,1992-1994 Combination of 6-BA 200 mg/L+B9 2000 mg/L and GA3.10 mg/L+2,4-D 5 mg/L were used respectively.The results showed that the increasing amount and rate of the treated winter shoots was only 35.03% and 37.59% that of the control.The flushing rate of the flower clusters was up to 92.33%, increased 81.75% over that of the control,markedly promoting the flower bud differentiation.The rate of degradation in inflorescene decreased,only 15.28% that of the control.The branch clusters of flowers increased by 30.02%.The treatments increased 67.40% in fertile fruits and 48.00% in fruit clusters.The average yield per tree was up to 57.00 kg,an increase of 61.61% over that of the control.The flushing rate of the flower clusters was up to 90.41% with an average 46.10 fertile fruits per cluster.The total yield of 604 treated trees(2.37 hm2)was up to 38744.70 kg with average yield of 64.20 kg/tree, reaching a higher level in present longan production.
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