论文部分内容阅读
通过对小麦抗蚜品种冀保1号和感蚜品种中旱101不同生育期叶片和穗部氨基酸种类和含量的测定,结合对田间麦长管蚜自然种群的系统调查,采用相关性分析和多元回归分析的方法,研究了麦长管蚜种群消长和小麦氨基酸含量的关系。相关性分析表明,甘氨酸、缬氨酸等10种氨基酸与麦蚜种群消长呈显著相关;回归分析表明,感蚜品种中旱101叶片中缬氨酸、苏氨酸和甘氨酸与麦蚜种群相关显著,回归方程为y中叶=4.030+3.229x苏+1134.504x甘-79.458x缬;穗部的甘氨酸、缬氨酸与麦蚜种群相关显著,回归方程为y中穗=320.931+105.262x甘-33.528x缬。抗蚜品种冀保1号叶片中缬氨酸、谷氨酸和丙氨酸与麦蚜种群相关显著,回归方程为y冀叶=-2.440+23.844x缬+8.010x谷-1.911x丙;穗部的甘氨酸、缬氨酸与麦蚜种群相关显著,回归方程为y冀穗=-235.666+20.245x甘+44.640x缬。综合分析得出:缬氨酸含量的高低可以作为评价小麦抗蚜性的指标之一。
Through the determination of the types and contents of the amino acids in the leaves and ears of the wheat aphid variety Jibao 1 and the susceptible aphid variety Zhongdan 101 at different growth stages and by the systematic investigation of the natural population of Aphis gossypii in field, the correlation analysis and multivariate Regression analysis method to study the relationship between the population growth and decline of Aphis gossypii and wheat amino acid content. Correlation analysis showed that 10 amino acids such as glycine and valine were significantly correlated with population decline of wheat aphid. Regression analysis showed that valine, threonine and glycine were significantly correlated with the population of wheat aphid in Zhongdan 101, a sensitive aphid variety , The regression equation was y = 4.030 + 3.229x Su + 1134.504x Gan -79.458x Valerian; glycine, valine and wheat aphid populations were significantly correlated, the regression equation was y = 310.931 + 105.262x Gan -33.528 x Valerian. Valine, glutamic acid and alanine were significantly correlated with the population of wheat aphids in the anti-aphid variety Jibao 1, and the regression equation was y = -2.440 + 23.844x + 8.010x -1.911 × C; Department of glycine, valine and wheat aphid population significant correlation, the regression equation y Hebei spike = -235.666 +20.245x Gan +44.640x Valerian. Comprehensive analysis shows that the content of valine can be used as an index to evaluate the resistance of wheat to aphids.