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首页> 外文期刊>Journal of Agronomy >The Use of Paclobutrazol and Shading Net on Growth and Yield of Potato ?Medians? Tuber of G2 in Medium Land of Indonesia
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The Use of Paclobutrazol and Shading Net on Growth and Yield of Potato ?Medians? Tuber of G2 in Medium Land of Indonesia

机译：多效唑和遮阳网对马铃薯“中位数”生长和产量的影响印尼中部土地上的 2 块茎

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Background and Objective: One problem in introducing potato cultivation in medium land of Indonesia is high temperature which causes low yield of the potato tuber. High temperature improves shoot growth but reduces the formation and development of tuber. To reduce high temperature and inhibit shoot growth, therefore new strategy must be conducted to resolve this problem such as by the application shading net and paclobutrazol during potato cultivation. The objective of this study was to evaluate the interaction effect between shading net and paclobutrazol on growth and yield of potato ?medians? tuber of G2 in medium land of Indonesia. Methodology: Randomized block design was used in this study with two factors, consisted of three levels of shading net density (0, 30 and 40%) and 4 levels of paclobutrazol concentration (0, 50, 100 and 150 mg L?1). All parameters were tested by two-ways of analysis of variance (ANOVA) using Fisher test followed by Duncan?s multiple range test at the 5% significance level. Results: The result showed that no significant interaction between shading net density and paclobutrazol concentration at all observed parameters. Shading net 30% increased plant height, leaf area index, tuber number, tuber weight and percentage of tuber for seed size that was significantly higher than without and 45% shading net. Moreover, paclobutrazol suppressed plant height and leaf area but it increased chlorophyll content, tuber number and tuber weight/plant and percentage of tuber for seed size. Conclusion: Paclobutrazol suppressed plant height and leaf area, however it increased leaves chlorophyll content, tuber number and tuber weight/plant. The highest tuber number and percentage of class tuber for seed size were obtained from plant with 50 mg L?1 of paclobutrazol application.
机译：背景与目的：在印度尼西亚中部地区引进马铃薯栽培的一个问题是高温，导致马铃薯块茎的低产。高温可促进枝条生长，但可减少块茎的形成和发育。为了降低高温并抑制芽的生长，因此必须采取新的策略来解决该问题，例如在马铃薯栽培期间通过施用遮光网和多效唑。这项研究的目的是评估遮光网和多效唑对马铃薯中位数生长和产量的相互作用。 G 2 的块茎在印度尼西亚中部地区。方法：本研究采用随机区组设计，其中有两个因素，包括三个水平的遮光网密度（0、30和40％）和4个水平的多效唑浓度（0、50、100和150 mg L ）。 1 ）。所有参数均通过采用Fisher检验的二次方差分析（ANOVA）和随后在5％显着性水平下的Duncan多范围检验进行了检验。结果：结果表明，在所有观察到的参数下，遮阳网密度与多效唑浓度之间没有显着的相互作用。遮荫网使种子高度的株高，叶面积指数，块茎数，块茎重量和块茎百分比增加30％，显着高于不使用遮荫网和45％的遮荫网。此外，多效唑抑制了株高和叶面积，但增加了叶绿素含量，块茎数量和块茎重量/植物以及块茎占种子大小的百分比。结论：多效唑抑制了株高和叶面积，但增加了叶绿素含量，块茎数量和块茎重量/植物。从施用多效唑的50 mg L ？1 植物中可获得最高的块茎数量和种子块茎百分比。

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