摘要
为探索魔芋产量及品质与农艺性状间的潜在关系,以便在生产上通过农艺性状来预测魔芋产量及其葡甘聚糖含量,测定了魔芋的14个农艺性状、2个产量性状和1个品质性状指标,运用相关性分析、主成分分析和多元逐步回归分析等方法分析了球茎生物量和葡甘聚糖含量与农艺性状的关系.结果表明:(1)魔芋总叶柄长度、总叶柄直径、球茎鲜质量、球茎干质量及葡甘聚糖含量等性状在个体水平上差异明显,其变异系数变化范围为19.70％～90.50％.(2)魔芋的总叶柄长度和总叶柄直径与其球茎鲜质量和干质量呈极显著或显著相关,即魔芋总叶柄越长、越粗,其产量越高;但其葡甘聚糖含量的变化与总叶柄长度和总叶柄直径之间却表现出一定的随机性或无显著相关性.通过总叶柄长度和总叶柄直径可以在一定程度上推测魔芋产量.
Abstract
To explore the potential relationship between yield,quality and agronomic traits of Amorphophallus konjac,so as to predict its yield and glucomannan content through morphological traits in production,14 agronomic traits,two yield traits and one quality traits were measured.Correlation analysis,principal component analysis,and multiple stepwise regression analysis were used to analyze the relationship between corm biomass,glucomannan content and agronomic traits.The results showed that:(1)There were significant differences in 17 traits such as common petiole length,common petiole diameter,compound leaf diameter,corn fresh weight,corn dry weight,and glucomannan content at the individual level,and the coefficient of variation ranged from 19.70％to 90.50％.(2)The common petiole length and common petiole diameter had significant or extremely significant correlation with corn fresh weight and corn dry weight,which indicated that the longer and thicker the common petiole,the higher the yield.However,the change in glucomannan content showed some randomness or no significant correlation with these two traits.The yield of A.konjac could be predicted to a certain extent based on the length and diameter of common petiole.
维普
万方数据