摘要
利用强筋冬小麦品种烟农 15研究了钾素对小麦旗叶蛋白质含量和籽粒品质及有关酶活性的影响。结果表明 ,钾素有利于提高灌浆前期和中期小麦旗叶中可溶性蛋白质和游离氨基酸的含量 ,增强内肽酶和羧肽酶的活性 ,促进籽粒中游离氨基酸转化为蛋白质 ,提高籽粒中清蛋白、球蛋白、醇溶蛋白和谷蛋白的含量 ,改善籽粒营养品质和加工品质 ;同时 ,提高了籽粒产量。文中还讨论了提高蛋白质各组分的措施及与营养品质和加工品质的关系和高产高效的施钾量。
The effect of potassium on flag leaf protein content and kernel quality as well as enzyme activity in wheat was investigated using wheat cultivar Yannong 15 with strong gluten potential. Result suggested that potassium can increase soluble protein and free amino acid content, enhance the activities of endopeptidases and carboxypeptidase in wheat flag leaf during the early and medium stage of kernel filling, accelerate the translation of free amino acid to protein in kernel. Potassium also increased the contents of albumin, globulin, gliadin and glutenin in kernel, improved nutrition and process qualities, increased kernel yield. The improvement of protein components, the relationship between nutrition quality and process quality and the optimum amount of applied potassium were also discussed.
出处
《作物学报》
CAS
CSCD
北大核心
2003年第2期285-289,共5页
Acta Agronomica Sinica
基金
国家自然科学基金资助项目 ( 39970 42 5 )
