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Effect of shading on the establishment of Panicum maximum cv. Momba?a

机译:阴影对Panicum maximum cv建立的影响。蒙巴

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Interest in studying forage establishment in the shade has increased, principally when the intention is to associate forage species and trees to constitute sylvopastoral systems. The objective of this research was to evaluate the influence of four levels (0, 25, 50, and 75%) of artificial shading on 12 variables: plant height (PH), number of tiller (NT), number of leaves (NL), leaf area (LA), dry matter of roots (DMR), dry matter of leaves (DML), dry matter total (DMT), leaf area (LA), specific leaf area (SLA), ratio of leaf area (RLA), of root matter (RRM) and of leaf matter (RLM), in the establishment phase of Momba?a grass. The experimental design was randomized blocks with three replications. The results showed that the highest values for PH and DML (by univariate analysis of variance and regression analysis), LA, and DMT (by regression analysis) and NT and DMR (by high tendency) of Momba?a grass were obtained at the level of 75% of shading. Thus the authors recommend this level of shading to be used in pastoral-forest or agropastoral-forest systems.
机译:在树荫下研究草料建立的兴趣增加了,主要是当意图是将草料种类和树木联系起来以构成食牧系统时。这项研究的目的是评估四种水平(0、25、50和75%)的人工遮光对12个变量的影响:植物高度(PH),分er数(NT),叶片数(NL) ,叶面积(LA),根部干物质(DMR),叶干物质(DML),总干物质(DMT),叶面积(LA),比叶面积(SLA),叶面积比(RLA)根草(RRM)和叶质(RLM)在草木的建立阶段。实验设计是具有三个重复的随机区组。结果表明,蒙巴草的PH和DML(通过单变量方差分析和回归分析),LA和DMT(通过回归分析)以及NT和DMR(通过高趋势)的最高值均达到该水平。阴影的75%。因此,作者建议将这种等级的阴影用于牧林或农牧林系统。

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