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利用AMMI模型对雷州半岛4试点8个甘薯品种的产量性状进行分析。结果表明,对鲜薯产量和薯干产量总变异起作用的因素依次为基因型、基因型与环境互作和环境。鲜薯产量2条主成分轴共解释了94.70%的互作平方和,薯干产量2条主成分轴共解释了93.55%的互作平方和。广薯87属于高产稳产品种,适应性广;广薯79属于低产稳产品种,适应性广;揭薯04-12、广薯42属于高产不稳产品种;紫罗兰、桂粉3号属于低产不稳产品种。揭薯04-12在雷州,紫罗兰在遂溪,广薯42在徐闻具有特殊的适应性。徐闻对品种的选择性最高,品种的交互作用大;吴川点对品种的鉴别力最低,对各品种具有广泛的适应性。
The AMMI model was used to analyze the yield traits of eight sweet potato cultivars in Leizhou Peninsula 4 pilot project. The results showed that the factors affecting the total variation of fresh-potato yield and total dry-root production were genotype, genotype-environment interaction and environment. The two principal component axes of fresh potato yield accounted for 94.70% of the sum of squares and the two principal component axes of dried potato yield accounted for 93.55% of the sum of squares. Broad potato 87 is a high-yielding and steady-yielding variety with wide adaptability. Broad-potato 79 is a low- and stable-yielding variety with wide adaptability. Uncover potato 04-12, Broad potato 42 belong to high yield unstable varieties; Violet and Gui powder No.3 are low yield Unsteady varieties. Jie potato 04-12 in Leizhou, violet in Suixi, 42 potato in Xuwen has a special adaptability. Xuwen has the highest selectivity to varieties and large variety interaction. Wuchuan spots have the lowest discriminative power to varieties and have wide adaptability to all varieties.