摘要
采用Beckman公司DU640型紫外-可见分光光度计测定了五个稻作区16个州市的905份云南地方稻初级核心种质功能成分栽培型间差异及地带性特征,结果表明:糙米抗性淀粉(%)为0.75±0.29,籼稻(0.78±0.35)显著高于粳稻(0.74±0.24),粘稻(0.78±0.31)极显著高于糯稻(0.67±0.22),晚稻(0.77±0.35)极显著高于早中稻(0.75±0.26),红米(0.81±0.30)和紫米(0.70±0.30)极显著高于白米(0.69±0.27);稻作区依次为Ⅰ(0.83)>Ⅱ(0.79)>Ⅲ(0.76)>Ⅴ(0.55)>Ⅳ(0.50),即滇中南部(Ⅰ,Ⅱ,Ⅲ)糙米抗性淀粉含量极显著高于北部稻作区(Ⅴ,Ⅳ);滇西北的丽江和滇东北的昭通糙米抗性淀粉含量极显著低于除迪庆州外的13个州市。糙米γ-氨基丁酸含量[mg.(100 g)-1]为7.43±2.53,水稻(7.59±2.56)极显著高于陆稻(7.09±2.45),糯稻(8.55±2.88)极显著高于粘稻(7.10±2.32),晚稻(7.88±2.64)极显著高于早中稻(7.23±2.45),白米(8.38±2.66)极显著高于红米(6.63±2.14)和紫米(7.34±2.18);稻作区依次为Ⅱ(7.69)>Ⅰ(7.40)>Ⅳ(7.39)>Ⅲ(7.33)>Ⅴ(6.64),即滇南单双季籼稻区(Ⅱ)糙米γ-氨基丁酸含量明显高于滇西北高寒粳稻区;滇南的思茅、滇中的玉溪和保山糙米γ-氨基丁酸含量至少与5个州市差异显著。云南稻糙米总黄酮含量[mg.(100 g)-1]为306.98±192.75,陆稻(341.74±185.11)极显著高于水稻(290.41±193.72),粘稻(315.54±197.64)显著高于糯稻(171.68±11.76),早中稻(318.25±197.93)极显著高于晚稻(282.12±178.11),红米(379.22±197.70)和紫米(365.61±195.44)极显著高于白米(216.96±142.11),光壳稻(332.68±196.22)显著高于白壳稻(300.48±191.14);稻作区依次为Ⅲ(327.13)>Ⅱ(324.23)>Ⅳ(273.11)>Ⅴ(270.16)>Ⅰ(258.26),即滇南(Ⅱ,Ⅲ)糙米总黄酮含量极显著高于滇中;思茅糙米总黄酮含量显著高于8个州市而保山总黄酮含量则显著低于7个州市。这些既揭示了糙米抗性淀粉、γ-氨基丁酸和总黄酮、含量在水陆、沾糯、早中晚、米色间差异极显著(p<0.
The zonal characteristics and cultivated types difference of functional components in brown rice of 907 accessions for primary core collection for rice landrace from 16 prefectures of five rice regions in Yunnan Province were determined by ultraviolet spectrophotometry of DU640 type from BECKMAN.The analytical results showed that the contents mg·（100 g）-1 of total flavone in brown rice is 306.98±192.75,the content of upland（341.74±185.11） is the most significantly higher than that of lowland（290.41±193.72）,that of the glutinous（315.54±197.64） is significantly higher than nonglutinous（171.68±11.76）,that of early-mid（318.25±197.93） is the most significantly higher than late（282.12±178.11）,that of red rice（379.22±197.70） and purple rice（365.61±195.44） are the most significantly higher than white rice（216.96±142.11）,and that of nuda（332.68±196.22） is significantly higher than non-nuda（300.48±191.14）.Among five rice regions,in turn Ⅲ（327.13）〉Ⅱ（324.23）〉Ⅳ（273.11）〉Ⅴ（270.16）〉Ⅰ（258.26）,namely it is the most significantly highest（p〈0.01） for contents of total flavone from South Yunnan（Ⅱ,Ⅲ） than that of middle Yunnan;It is the most significantly highest from Simao prefecture than that of 8 prefectures,but it is the most significantly low from Baoshan prefecture than that of 7 prefectures.The contents mg·（100 g）-1 of g-amino butyric acid（GABA） in brown rice is 7.43±2.53,the content of lowland（7.59±2.56） is the most significantly higher than that of upland（7.09±2.45）,that of non-glutinous（8.55±2.88） is the most significantly higher than glutinous（7.10±2.32）,that of late（7.88±2.64） is the most significantly higher than early-mid（7.23±2.45）,that of white rice（8.38±2.66） is the most significantly higher than red rice（6.63±2.14） and purple rice（7.34±2.18）;Among five rice regions in turn Ⅱ（7.69）〉Ⅰ（7.40）〉Ⅳ（7.39）〉Ⅲ（7.33）〉Ⅴ（6.64）,vi
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2010年第12期3388-3394,共7页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(31060186,30660092)
云南省重点新产品开发计划项目(2010BB001)资助
关键词
总黄酮
Γ-氨基丁酸
抗性淀粉
栽培类型
地带性特征
云南稻核心种质
Total flavone
GABA
Resistant starch
Cultivated types
Zonal characteristics
Core collection of rice landrace in Yunnan
