不同时期施氮对功能型水稻产量及籽粒功能成分的影响  

Effects of Various Nitrogen Application Stage on Grain Yield and Functional Components of Rice

作　　者：杨树明[1,2] 杨慧[3] 赵旭 曾亚文[1,2] 杜娟[1] 普晓英[1] 杨涛[1] 

机构地区：[1]云南省农业科学院生物技术与种质资源研究所,云南昆明650205 [2]云南省农业生物技术重点实验室,云南昆明650223 [3]大理学院农学与生物科学学院,云南大理671000 [4]寻甸县农业局植保植检工作站,云南寻甸655200

出　　处：《西南农业学报》2013年第4期1527-1531,共5页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(31060186);云南省自然科学基金项目(2010CD006);云南省重点新产品开发项目(2010BB001);云南省技术创新人才培养项目(2011CI059);昆明市创新型试点企业项目(昆科计字10N060204号)

摘　　要：在施纯N 120 kg/hm2条件下,研究不同时期施氮对水稻云资粳82号产量及糙米γ-氨基丁酸、总黄酮、生物碱和抗性淀粉含量的影响。结果表明:①氮肥按基肥∶分蘖肥∶穗肥∶促花肥=4∶2∶1∶1施用,诸多农艺性状表现良好,能显著提高有效穗数、穗粒数、结实率和千粒重,产量为10367.55 kg/hm2,比其它处理增产3.24%~26.21%,且有利于总黄酮和抗性淀粉含量积累。②氮肥按基肥∶分蘖肥=1∶1施用,能显著提高γ-氨基丁酸和生物碱含量。The elite rice cultivar Yunzljing 82 （Japonica） as material, was used to investigate the effects of nitrogen fertilizer time on grain yield and four functional components, including v-aminobutyric acid （GABA）, flavones （FL）, alkaloids（AL） and resistant starch（RS） in grains. The nitrogen fe^ilizer rate during the whole growth period was 120 kg/ha. The results showed that： （i） when the basal manure, till- er fertilizer, ponic]e fertilizer and bloom fertilizer were setting at the ratio of 4： 2： 1： 1, it had the positive effects on effective panicles, grains per panicle, seed setting rate and 1000-grain weight. Meanwhile, the highest grain yield and favorable agronomic traits were observed, which yield cculd reach 10367.55 kg/hm2, increing rate from 3.24 % to 26.21% compared with other treatments. On the other hand, it could be favorable to accumulation of FL and RS. （ii） when the basal manure and tiller fertilizer were setting at the ratio of 1：1, the GABA and AL content were significantly enhanced.

关 键 词：施肥时期 产量 总黄酮 Γ-氨基丁酸 生物碱 抗性淀粉 

分 类 号：S511[农业科学—作物学]