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| 水分胁迫对葡萄叶绿素荧光参数的影响 | |
| 引用本文： | 徐建伟,席万鹏,方憬军,亚合甫&#;木沙.水分胁迫对葡萄叶绿素荧光参数的影响[J].西北农业学报,2007,16(5):175-179. |
| 作者姓名： | 徐建伟 席万鹏 方憬军 亚合甫&#;木沙 |
| 作者单位： | 1. 石河子大学教务处,新疆石河子,832003 2. 石河子大学农学院园艺系,新疆石河子,832003 3. 临夏州林木种苗站,甘肃临夏,731100 4. 新疆巴音郭楞职业技术学院,新疆库尔勒,841000 |
| 基金项目： | “影响葡萄产量、品质的冠幕指标分析”SRP资助 |
| 摘 要： | 通过设置土壤含水量为15%、10%、5%三个水分胁迫处理,测定各处理的叶绿素荧光,研究水分胁迫对葡萄叶绿素荧光参数的影响。结果表明:随着胁迫强度的加强可变荧光(Fv)下降,PSⅡ的原初光能转换效率(Fv/Fm)和光量子产额减少,光电子传递效率(etr)降低;恢复过程中,15%胁迫容易恢复,10%胁迫较易恢复,5%胁迫不能恢复。Fv、Fv/Fm、etr、Yield对胁迫和恢复反应敏感,都可以作为葡萄抗旱品种快速鉴定的指标,Fv的可靠性最强。光化学淬灭系数(qp)和非光化学淬灭系数(nqp)在胁迫初期都逐渐变大,在胁迫后期出现相反对应的变化趋势,在恢复过程中比较稳定,反应了葡萄在受到水分胁迫时的光合调节和自我保护能力,但qp和nqp不宜作为快速鉴定抗旱品种的指标。 |
| 关 键 词： | 水分胁迫 葡萄 叶绿素荧光 |
| 文章编号： | 1004-1389（2007）05-0175-05 |
| 收稿时间： | 2007-01-23 |
| 修稿时间： | 2007-03-30 |
Effects of Different Water Stress on Grape Chlorophyll Fluorescence Parameters |
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| XU Jian-wei,XI Wan-peng,FANG Jing-jun and Yakup Mosa.Effects of Different Water Stress on Grape Chlorophyll Fluorescence Parameters[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(5):175-179. | |
| Authors: | XU Jian-wei XI Wan-peng FANG Jing-jun and Yakup Mosa |
| Institution: | Educational Administration Department of Shihezi University, Shihezi Xinjiang 832003, China;Horticulture Department of Agriculture College of Shihezi University, Shihezi Xinjiang 832003, China;Forest Seeding Station of Linxia State, Linxia, Gansu 731100, China;Bayinguoleng Vocational and Technical Institute, Korla Xinjiang 841000, China |
| Abstract: | In this paper grape chlorophyll fluorescence parameters was studied by making three degree water stress that soil water content were 5%,10% and 15%.The result showed that variable fluorescence(Fv),conversion efficiency of primary light energy(Fv/Fm),sum of photochemistry quantum(yield)and the rate of light electron transfer(etr) would decreased with more strong water stress.Light would be restored easily,moderate stress more easily,severe stress not during restoration.Fv,Fv/Fm,etr and yield had good sensitivity to water stress and recovery,so could be used to identificate fastly drought-risitant grape varieties.Coefficient of photochemical quenching(qp) and coefficient of non-photochemical quenching(nqp) increased gradually in initial stress stage, changed adversly and correspondently in the later stress stage,but keep steady in the process of restoration.The change of qp and nqp responsed to the ability of photosynthesis adjusting and protection.But qp and nqp should not be as the index of identificating fastly drought-risitant grape varieties. |
| Keywords: | Water stress Grape Chlorophyll fluorescence |
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