Charactering protein fraction concentrations as influenced by nitrogen application in low-glutelin rice cultivars

查看全文 作　　者：LI Gang-[1]hua;CHEN Yi-[1]lu;DING Yan-[1]feng;GENG Chun-[1]miao;LI [1]Quan;LIU Zheng-[1]hui;WANG Shao-[1]hua;TANG [1]She

机构地区：[1]Jiangsu Collaborative Innovation Center for Modern Crop Production/Jiangsu Key Laboratory for Information Agriculture/National Engineering and Technology Center for Information Agriculture/Key Laboratory of Crop Physiology and Ecology in Southern China,Nanjing Agricultural University, Nanjing 210095, P.R.China

出　　处：《Journal of Integrative Agriculture》索引2016年第15卷第3期,共8页

基　　金：provided by the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2011BAD16B14, 2012BAD20B05, 2012BAD04B08) 摘　　要：To optimize both grain yield and quality of low-glutelin rice cultivars under N-fertilizer strategies, two-year field experiments involving three low-glutelin rice cultivars(W1240, W1721, W025) and an ordinary rice cultivar(H9405) with five N treatments were carried out to determine the effects of N application rate and genotype on protein fractions contents and Glutelin/Prolamin ratio(Glu/Pro). The difference of protein fraction concentrations affected by N application rate existed in genotypes. Ordinary rice cultivar had a larger increase in glutlein concentration affected by N application rate than low-glutelin rice cultivars did. Glutelin in H9405 had a increase of 30.6 and 41.0% under the N4 treatment(360 kg N ha^(–1)) when compared with N0 treatment(no fertilizer N) in 2010 and 2011 respectively, while all the low-glutelin rice cultivars showed relatively smaller increases for two years. Variance analysis showed no significant effect of N application rate on glutelin in W1240 and W025 while the effects on albumin, globulin and prolamin were significant in low-glutelin rice. What's more, N treatment had no significant i nfluence on Glu/Pro ratios in low-glutelin rice cultivars while a significant increase in Glu/Pro ratio was observed in ordinary rice cultivar. So low-gultelin rice cultivars showed a different pattern from ordinary rice cultivars when influenced by N application rate. 关键词：蛋白质组分含量水稻品种谷蛋白组分浓度氮素表征品种表现醇溶蛋白

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Charactering protein fraction concentrations as influenced by nitrogen application in low-glutelin rice cultivars

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