摘要
探讨立冬本龙眼不同留穗量对花芽分化期秋梢叶片矿质营养含量、结果母枝生长及果实品质和产量效益的影响。结果表明,株留穗量1/3和对照树的秋梢叶片N、P、K含量高于株留穗量1/2处理,Ca、Mg含量表现为留穗量1/2>留穗量1/3>对照。留穗量1/3处理,年际间结果母枝粗度、长度、叶片数差异均不显著,都是优良结果母枝,大年和小年均表现果大(13.0g以上),穗大(800.0g以上),品质优,大小年变幅小(14.67%),与留穗量1/2相比,4年平均增产24.20%,提高经济效益44.68%。说明留穗量1/3是较适宜的负载量。
Effects of fruit-bud pruning on the mineral content of the autumn leaves during flower-bud differentiation stage, the growth of fruit-bearing branches, and the quality and yield of fruits of longan variety Lidongben were studied. The results showed that the N, P and K contents in the autumn leaves were higher when 1/3 of the fruit-buds was retained on a tree branch or no pruning （CK） was applied than if 1/2 of the buds was removed. The contents of Ca and Mg were in a decreasing order upon 1/2 pruning 〉 2/3 pruning 〉 CK. There were no significant differences observed in 4 years on the length, diameter, and leaf count on the fruit-bearing branches on the trees that had 2/3 of the fruit-buds removed. Furthermore, these fruit-bearing branches tended to produce large individual fruits （above 13.0 g）, big panicles （more than 800.0 g）, excellent quality, and relatively consistent fruit-bearing performance （with 14. 67 % differentiation between the high and low production years）. Furthermore, the average annual fruit yield increased 24.20% with an improved profitability of 44.68%, as compared to 1/2 pruning. Consequently, it was concluded that retention of 1/3 of the fruit- buds on a single fruit-bearing branch was recommended for longan pruning.
作者
许奇志
蒋际谋
杨凌
邓朝军
许秀淡
郑少泉
XU Qi-zhi JIANG Ji-mou YANG Ling DENG Chao-jun XU Xiu-dan ZHENG Shao-quan(Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China Fujian Breeding Engineering Technology Research Center for Longan and Loquat, Fuzhou, Fujian 350013, China)
出处
《福建农业学报》
CAS
北大核心
2017年第6期602-606,共5页
Fujian Journal of Agricultural Sciences
基金
农业部种质资源保护项目(2014NW13008)
农业部热带作物种质资源保护项目(14R22Y-15)
关键词
龙眼
留穗量
矿质营养
优质果品
大小年结果
longan
fruit-bud pruning
mineral contents
high-quality fruit
fruit-bearing fluctuation
