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砍收时期对白肋烟上部叶晾制前后氨基酸含量的影响 预览 被引量:3

Effect of Stalk Cutting Time on Upper Leaf Amino Acid Content in Burley Tobacco before and after the Air-curing
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摘要 以白肋烟TN 86为材料,研究了砍收期对晾制前后上部叶氨基酸含量的影响。结果表明,晾制前总氨基酸含量为124.47-140.78 mg/g,以酪氨酸含量和比例较高,在各个砍收时期天冬氨酸含量为7.78-11.16 mg/g,表现为打顶后4周〉6周〉5周〉3周〉2周。晾制前甘氨酸和苏氨酸与砍收时期相关性达显著水平。晾制后总氨基酸含量为73.78-97.77 mg/g,以天冬氨酸比例和含量较高,在各个砍收时期天冬氨酸含量为23.73-31.25 mg/g,以打顶后2周砍收的含量较高,打顶后4周砍收比例较高。天冬氨酸在晾制前含量和比例不高,晾制后却大幅度上升。晾制后甘氨酸、苏氨酸、脯氨酸、异亮氨酸、亮氨酸、酪氨酸、苯丙氨酸和赖氨酸与砍收期相关性达到极显著水平,天冬氨酸、组氨酸、精氨酸、丙氨酸、缬氨酸、蛋氨酸和总氨基酸与砍收期的相关性达到显著水平。砍收时期对晾制后氨基酸含量影响大于晾制前。打顶后2周砍收有利于上部叶天冬氨酸积累和形成。 This paper studied effect of different stalk cutting time on upper leaves amino acid content before and after the air-curing of burley tobacco TN 86. The results showed that,the total acids content was in the range of 124. 47-140. 78 mg/g,the content and ratio of Tyr were higher before the air-curing,the Asp acid content was in the range of 7. 78 -11. 16 mg/g at different stalk cutting time before the air-curing,manifested as topping four weeks〉six weeks〉five weeks〉three weeks〉two weeks. There was a significant level between Gly,Thr and stalk cutting time before the air-curing. The total acids content was in the range of 73. 78-97. 77 mg/g,the content and proportion of Asp were higher after the air-curing. The Asp acid content was in the range of 23. 73-31. 25 mg/g at different stalks cutting time after the air-curing;its content received a higher proportion when stalk cutting after top-ping two weeks and its ratio received a higher proportion when stalk cutting after topping four weeks. The content and the ratio of Asp were not high before the air-curing,but increased significantly after the air-curing. There was a extremely significant level between Gly,Thr,Pro,Ile,Leu,Lys,Phe,Tyr and stalk cutting time;there was a signifi-cant level between Asp,His,Arg,Ala,Val,Met,total amino acids and stalk cutting time. Effect of the amino acid contents after air-curing was greater than before air-curing at different stalk cutting time. It was conducive to the ac-cumulation and formation of Asp acid in upper leaves when stalk cutting after topping two weeks.
作者 孙红恋 赵田 周海燕 孙军伟 字萍 宋莹丽 王瑞云 吴疆 史宏志 SUN Hong-lian, ZHAO Tian, ZHOU Hai-yan, SUN Jun-wei, ZI Ping, SONG Ying-li, WANG Rui-yun, WU Jiang, SHI Hong-zhi (1. National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zbengzhou 450002, China ;2. Dali Tobacco Company of Yunnan Province,Dali 671000,China;3. Binchuan Burley Tobacco Co. ,Ltd. ,Binchuan 671600,China)
出处 《华北农学报》 CSCD 北大核心 2014年第1期145-150,共6页 Acta Agriculturae Boreali-Sinica
基金 云南省烟草公司科技项目(2010年YN50)
关键词 白肋烟 上部叶 砍收时期 氨基酸 晾制 Burley tobacco Upper leaves Stalk cutting time Amino acid Air-curing
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