张金巍 1雒树青 1额尔登图 1曹莉琼 1郝慧雯 1包乌日娜 1孟春亮 1朱文新1
作者信息
- 1. 内蒙古锡林郭勒盟农牧技术推广中心,内蒙古锡林浩特市 026000
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摘要
Abstract
In order to clarify the influence of yield-constituent factors on the yield of oil-flax,18 va-rieties of oil-flax were used as materials to evaluate the yield of oil-flax and its constituent factors.The results showed that there were significant differences in yield among varieties.The yields of eight varie-ties,namely Neiya No.11,Yiya No.4,Baya No.15,Longya No.10,Jinya No.15,Baya No.21,Baxuan No.3,and Neiya No.14,were significantly higher than that of Neiya No.9(CK).Correlation analysis and path analysis showed that the yield of oil-flax was extremely significantly positively correlated with the number of plants per unit area,the number of fruits per plant,and the number of grains per fruit.Taking the yield(Y)as the dependent variable,and the number of plants per unit area(X1),the number of fruits per plant(X2),the number of grains per fruit(X3),and the 1000-grain weight(X4)as the inde-pendent variables,an optimal regression model was established:Y=-4 316.343+0.736X1+0.628X2+0.425X3+0.242X4.The regression model analysis showed that the number of plants had the greatest im-pact on the yield,followed by the number of fruits per plant,the number of grains per fruit,and the 1000-grain weight.In conclusion,the most important way to increase the yield of oil-flax is to increase the number of plants per unit area,that is,the planting density.However,due to the competition and compensation mechanisms among the yield-constituent factors,when increasing the density,appropriate varieties should be comprehensively considered in terms of the number of fruits per plant,the number of grains per fruit,and the 1000-grain weight.关键词
油用亚麻/产量评价/构成因素/通径分析Key words
oil flax/yield evaluation/constituent factors/path analysis分类
农业科学
