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首页> 外文期刊>Australian Journal of Crop Science >Canonical correlations among morpho-agronomic and chemical traits in hybrids between elephant grass and millet
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Canonical correlations among morpho-agronomic and chemical traits in hybrids between elephant grass and millet

机译：象草和小米杂种的形态农艺与化学性状的典型相关性

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Studies involving the canonical correlation analysis in forage plants for interspecific hybrids between elephant grass (Pennisetum purpureum) and millet (Pennisetum glaucum) are scarce. The objectives of this study were to obtain estimates of coefficients of phenotypic, genotypic, and residual correlation and evaluate the degree of association between morpho-agronomic and chemical traits in 132 interspecific hybrids between elephant grass and millet. The experiment was conducted in the city of Coronel Pacheco-MG (Brazil). The experimental design was randomized complete blocks with 132 treatments and three replicates. Morpho-agronomic and bromatological characteristics were analyzed. The correlation analysis indicated that plants with elevated dry matter yield considering the whole plant, leaf or stem in taller plants and plants with intense tillering have lower crude protein contents, while plants with a greater diameter show lower percentages of fiber and cellulose and greater dry matter digestibility in vitro. By canonical correlations, the chi-squared test at 1% probability by was found that the hybrids showing morpho-agronomic and chemical patterns with taller plants and high dry stem matter yield have increased percentage of cellulose. In contrast, in the same canonical pair, plants with reduced leaf dry matter yield showed lower contents of silica and organic matter and reduced digestibility in vitro. The effect on the improvement of forage quality in hybrids of Pennisetum and millet was evidenced by the better performance of the plants for high dry matter yield of the stem, showing the potential of the same for inclusion in breeding programs.
机译：缺乏在草料植物中对象草（Pennisetum purpureum）和小米（Pennisetum glaucum）之间的种间杂交进行规范相关分析的研究。这项研究的目的是获得表型，基因型和残留相关系数的估计值，并评估132种象草和小米种间杂种的形态农艺与化学性状之间的关联程度。该实验在巴西的Coronel Pacheco-MG市进行。实验设计是随机完整块，具有132种治疗方法，重复了3次。分析了形态农艺学和微生物学特征。相关性分析表明，考虑到整株植物，较高叶植物的茎叶或干茎以及高分plants的植物，干物质产量较高的植物的粗蛋白含量较低，而直径较大的植物的纤维和纤维素百分比较低，干物质含量较高体外消化率。通过典型的相关性，卡方检验以1％的概率被发现，表现出形态农艺和化学模式且具有较高植株和高干茎产量的杂种具有增加的纤维素百分比。相反，在同一典范对中，叶片干物质产量降低的植物显示出较低的二氧化硅和有机物含量，并且体外消化率降低。植物对茎高干物质产量的更好表现证明了其对狼尾草和小米杂种的饲草质量改善的影响，显示了将其纳入育种计划的潜力。

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