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首页> 外文期刊>Acta Horticulturae >Effects of plant growth regulators on flowering and fruit thinning and quality of rambutan
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Effects of plant growth regulators on flowering and fruit thinning and quality of rambutan

机译：植物生长调节剂对红毛丹开花和水果稀土的影响

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This research was conducted with the following objectives: 1) to study plant growth regulators (PGRs) for control of flowering in rambutan, and 2) to increase fruit size of rambutan by fruit thinning. Two experiments were conducted, from October 2009to September 2013. Three PGRs, mepiquat chloride 0.5,1.0 and 1.5%, ethephon 2500 and 5000 ppm, and paclobutrazol 500 and 1000 ppm, were used to control flowering of rambutan in Chanthaburi, Srisaket and Chieng Rai provinces. The PGRs were applied to themain branches of rambutan trees 2 months before flowering. The results showed that all PGRs induced flowering of rambutan 4-8 days earlier than controls, and had no effect on flowering percentage, yield or quality. The maximum rates of the three PGRs were more effective than the lower rates. For fruit thinning, fruits were thinned 2 months after fruit set. A randomized complete block design (RCBD) with four replicates and five treatments included thinning to leave 8,12 or 15 fruits panicle1 and trimmingof 1/3 of the panicle, and a control. The results showed that thinning to leave 8 fruits panicle1 gave the heaviest and largest fruit, followed by thinning to leave 12 and 15 fruits panicle 1 and trimming 1/3 of the panicle All were significantly superior to control trees. In terms of numbers of fruit per kg, thinning to leave 8 fruits panicle1 gave 25 fruits kg1, which was classified as size code number 1; three treatments, thinning to 12 or 15 fruits panicle1 and trimming 1/3 of the panicle, gave 27fruits kg-1, in size code 2, but the control gave 30 fruits kg1, in size code 3. With regard to costs and returns, the thinning costs were 0.05-0.067 USD kg1 and the fruit with size codes 1 and 2 were sold at 1.33-1.67 USD kg1, while the price of unthinned fruit (size code 3) was 0.26-0.77 USD kg-1. Thinning can increase incomes of growers by approximately 2- to 5-fold. Integrated technologies should be applied to control flowering of rambutan for harvesting in early season, and fruit thinning is important for exporting to increase fruit size and quality. This can help farmers to get higher prices and higher incomes.
机译：该研究是以下列目的进行的：1）研究植物生长调节剂（PGR）控制红霉的开花，2）以通过果实稀释增加红绿岛的果实大小。从2009年10月到2013年9月进行了两项实验。三个PGR，氯化物0.5,1.0和1.5％，Ethephon 2500和5000ppm，以及紫杉蛋白500和1000ppm，用于控制夏汶武里，Srisaket和Chieng Rai的红毛丹开花省份。在开花前2个月，PGRS应用于红毛丹树的主题分支。结果表明，所有PGR都诱导了比对照早期4-8天的红毛丹开花，对开花百分比，产量或质量没有影响。三个PGR的最大速率比较低的速率更有效。对于水果稀薄，水果套后2个月的水果稀释。随机完整的块设计（RCBD），具有四个重复和五种处理，包括稀释，以留下8,12或15次果实胰管1并修剪胰穗的1/3和对照。结果表明，薄薄的8个水果1薄于最重和最大的水果，然后稀释，留下12和15个水果穗1并修剪1/3的穗均显着优于对照树。就每千克的水果数量而言，稀疏8个水果Panicle1给出了25个果实KG1，分为尺寸代码1;三种处理，稀释至12或15个果实胰穗1，并在尖端的颗粒中修剪1/3，在尺寸代码2中给出了27fruileskg-1，但是控制给出了30个果实KG1，尺寸代码3.关于成本和返回，稀释成本为0.05-0.067美元，并且具有尺寸码1和2的水果以1.33-1.67美元的KG1出售，而无数水果（大小码3）的价格为0.26-0.77美元kg-1。减薄可以将种植者的收入增加约2至5倍。综合技术应适用于初季的红毛丹的开花，果实变薄对于出口来增加果实尺寸和质量是重要的。这可以帮助农民获得更高的价格和更高的收入。

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