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枸杞子四种原性状的FTIR光谱法鉴别 被引量:33
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作者 孙素琴 王米渠 +1 位作者 梁曦云 杨显荣 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2001年第6期787-789,共3页
本文利用傅里叶变换红外 (FTIR)光谱法无损快速鉴别了枸杞子的四种原性状。结果表明 :不同颜色、不同味道、不同质地及不同形状的枸杞子的红外光谱谱图较为特征 ,各种枸杞子的红外官能团吸收均遵循一定的变化规律。该方法快速、简便、... 本文利用傅里叶变换红外 (FTIR)光谱法无损快速鉴别了枸杞子的四种原性状。结果表明 :不同颜色、不同味道、不同质地及不同形状的枸杞子的红外光谱谱图较为特征 ,各种枸杞子的红外官能团吸收均遵循一定的变化规律。该方法快速、简便、直观、样品不需要分离提取。 展开更多
关键词 傅里叶变换红外光谱法 枸杞子 原性状分析 中药 鉴别
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Principal Component Analysis on Traits Related to Lodging Resistance of Plateau Japonica Rice
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作者 丁明亮 浦秋红 +2 位作者 高春琼 袁平荣 苏振喜 《Agricultural Science & Technology》 CAS 2015年第6期1115-1120,共6页
Objective] This study was conducted to investigate the main factors affect-ing the lodging resistance of plateau japonica rice. [Method] Twenty agronomic traits related to lodging resistance of plateau japonica rice w... Objective] This study was conducted to investigate the main factors affect-ing the lodging resistance of plateau japonica rice. [Method] Twenty agronomic traits related to lodging resistance of plateau japonica rice were analyzed by principal component analysis and correlation analysis among 26 varieties/lines of plateau japonica rice. [Result] The lodging resistance of the 26 varieties/lines had great dif-ference among different agronomic traits. Plant height, and wal thickness of the 4th, 3rd and 2nd internodes under the panicle had the most important influence on lodging resistance, while the diameter of the 3rd, 2nd, 4th, 1st nodes under the panicle, length of the 4th and 3rd internodes under the panicle, wal thickness of the 1st internode under the panicle had less influence. The other nine agronomic traits of rice culm did not affect or indirectly affected lodging resistance through above-mentioned agro-nomic traits. Lodging resistance had significant correlations with plant height, length of the 4th and 3rd internodes under the panicle, wal thickness of the 1st, 2nd, 3rd and 4th internodes under the panicle and diameter of the 1st, 2nd, 3rd and 4th node sunder the panicle, had insignificant correlations with panicle length, panicle weight, length of the 1st and 2nd internodes under the panicle, diameter of the 1st, 2nd, 3rd and 4th internodes under the panicle, diameter of the 5th node under the panicle. [Conclu-sion] More attention should be paid to the main factors affecting lodging resistance in breeding to improve lodging resistance of plateau japonica rice. 展开更多
关键词 Plateau japonica rice Lodging resistance Agronomic traits Principal component analysis
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