首页|低温胁迫对橡胶湛试327-13幼苗叶片生理特性的影响

低温胁迫对橡胶湛试327-13幼苗叶片生理特性的影响

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以橡胶树新品系湛试327-13和GT1芽接袋装苗为试材,利用人工气候箱设计10、6℃低温胁迫处理对橡胶幼苗叶片的抗寒生理生化指标进行测试分析.结果表明:与对照相比,湛试327-13的SOD活性表现为上升趋势,而GT1表现为先降后升趋势;湛试327-13和GT1幼苗叶片的POD活性均表现为逐渐上升的变化趋势,而2个品种的CAT活性呈现相反的变化趋势,可溶性糖含量变化表现为先升后降的趋势;湛试327-13的可溶性蛋白含量变化表现为上升趋势,而GT1表现为先升后降的趋势;2个品种的相对电导率变化相对较小.综合以上指标的分析结果表明,湛试327-13的抗寒性比GT1的强.
Effects of Low Temperature Stress on Physiological Characteristics of Zhanshi 327-13 Seedling Leaves
The present experiment was conducted to study the physiological and biochemical parameters related to low-temperature resistance in the leaves of two rubber seedlings, zhanshi 327-13 and GT1. The plants were treated with 10 and 6. The results showed that, compared with the normal temperature 15℃ (control) , the activities of POD in rubber seedlings with low-temperature treatments increased; SOD activity increased of Zhanshi 327-13, but decreased initially and then increased of GT1; CAT activity had a reverse trend between Zhanshi 327-13 and GT1; soluble sugar with low-temperature treatments increased initially, then decreased followed; soluble protein content increased of Zhanshi 327-13 and increased initially and then decreased of GT1; relative conductivity did not vary much. It was concluded that the cold resistance of variety Zhanshi 327-13 was higher than that of variety GT1.

rubber seedlingZhanshi 327-13low temperature stresscold resistant physiology

贺军军、姚艳丽、李土荣、戴小红、程儒雄、罗萍

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中国热带农业科学院湛江实验站 广东湛江 524013

中国热带农业科学院南亚热带作物研究所 广东湛江 524091

橡胶幼苗 湛试327-13 低温胁迫 抗寒生理

中央级公益性科研院所基本科研业务费专项资金海南省自然科学基金

sscri200904310077

2013

热带农业科学
中国热带农业科学院

热带农业科学

CSTPCD
影响因子:0.534
ISSN:1009-2196
年,卷(期):2013.33(1)
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