核桃待选优株坚果品质主成分分析及综合评判

摘要

In order to offer a reference for selecting and breeding fine superior individuals in Juglans regia of Hunan Province, taking 14 alternative superior individuals in J. regia as materials, 18 quality indexes of nuts in each variety were measured and analyzed by using the methods of variation analysis, correlation analysis, and principal component analysis. The results showed that the correlation between the most of nut quality indexes reached significant level or extremely significant level;Shimen-2, Jingzhou-1, Shimen-4, Shimen-3, and Shimen-25 had better comprehensive performance on nut quality, while Shiemen-6, Shimen-23, and shiemen-8 had worst comprehensive performance. Shimen-2, jingzhou-1, Shimen-4, Shimen-3, shiemen-25 could be regarded as the options of fine individuals.%为给湖南省核桃优株筛选和育种提供参考，以14个核桃待选优株为试材，测定了各品种18个坚果品质指标，并进行了变异分析、相关分析和主成分分析。结果表明：大部分坚果品质指标间相关性达到显著水平或极显著性水平；坚果品质综合表现较优的为石门-2、靖州-1、石门-4、石门-3、石门-25，品质较差的为石门-6、石门-23、石门-8。石门-2、靖州-1、石门-4、石门-3、石门-25可作为候选优株。