吉林省谷子品质性状的研究

STUDY ON THE RELATIONSHIP BETWEEN KERNEL ABORTION AND DISTRIBUTION OF MINERAL ELEMENTS IN MAIZE EAR

摘要:

本文对吉林省谷子品种的13个品质性状进行了研究。结果表明:粗蛋白含量多为10.5％～14.0％,赖氨酸平均含量为0.39％,脂肪平均含量为4.9％,其中棕榈酸7.71％、硬脂酸2.92％、油酸13.25％、亚油酸72.15％、亚麻酸2.51％、花生酸1.56％。维生素中的硫胺素平均5.57μg/g、核黄素0.99μg/g、生育酚53.07μg/g。微量元素硒0.50μg/g。相关分析表明,亚油酸与棕榈酸、硬脂酸、花生酸呈极显著负相关;亚麻酸与花生酸、硬脂酸呈极显著正相关,与油酸呈极显著负相关;生育酚与微量元素硒呈显著负相关。

Abstract:

The concentraion of 12 mineral elements in the kernel and cob tissue in normal and nubbin maize ears was compared. The results showed that the concentration of N、P、K、 Mg、Ca、Na、B、Zn、Cu、and Mn in the kernel and P、Na、Ca、Fe、B、Zn、Cu、Mn and Mo in the cobs was the same in nubbin and normal ears. Concentration of Mo in kernel and concentration of N、K、Mg in cob were significantly higher in nubbin than in normal ears. In the normal ears, concentration of K and Zn in the kernels and N、P、K、and Zn in the cobs was higher at apical than at basal positions of ears. In nubbin ears, concentration of N and Zn were higher in apical （aborted） than in basal （normal） kernels, In cobs of nubbin ears, howerer, concentration of N、P、K、Mg、Ca、Zn and Mn as higher than in apical aborted kernels and in basal normal kernels at the same cob. From this study an insufficient supply of the mineral elements was considered as a cause of kernel abortion. A malfunction of transport of mineral elements or a disturbance of the transfer of mineral elenents between cob and kernel tissues may occure with kernel abortion.