灌浆成熟期气候因素对早籼稻米蛋白质及其4种组分含量的影响

Effect of Climatic Factors on the Contents of Protein and Four Protein Fractions in Early Hsien Rice during the Milking and Mature Period

研究了灌浆成熟期气候因素对早籼稻米蛋白质及其 4种组分含量的影响。结果表明 :灌浆成熟期日平均气温和平均日照时数对早籼稻米蛋白质及其 4种组分含量的影响较大 ,其中日平均气温是影响这 5个性状的主导因子。灌浆成熟期不同时段的温度对这 5个性状影响各不相同 ,灌浆成熟期间前、中期温度对蛋白质含量、清蛋白含量和谷蛋白含量影响大 ,灌浆成熟期间中、后期温度对球蛋白含量和醇溶蛋白含量影响大。灌浆成熟期温度时段分布对蛋白质及其

Effects of climatic factors on the contents of protein and four protein fractions in early hsien rice during the milking and mature period were studied.The results showed that:daily mean temperature and mean daylight hour during the milking and mature period had a great effect on the contents of protein and four protein fractions,of which daily mean temperature was a leading factor affecting the five characters.The daily mean temperature in different time sections had different effects on the five characters during the milking and mature period.Protein content,contents of albumin and glotelin were affected by temperature greatly in the early and middle stages of the milking and mature period,but the contents of globulin and prolamine were affected in the middle and late stages.Differences in distribution of temperature in different time sections affected protein content and contents of four protein fractions of the varieties with different protein contents.