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小麦抗旱性鉴定的生理生化指标及其分析评价 被引量:103

An Analysis and Review of Physiological and Biochemical Indexes about Wheat Drought Resistance Identification
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摘要 通过对国内外研究结果的收集、整理和分析,得知有20多项生理,系列化指标可用于小麦的抗旱性鉴定。其中,比较可靠的生理指标有干旱条件下的叶片水势,相对含水量,束缚水含量,种子吸水力和发芽率,细胞渗透市调节能力,叶片膨压,超弱发光和叶绿素荧光强度,光合和呼吸强度以及离体叶片失水速率,茎叶耐化学脱水性;比较可靠性的生化指标有旱胁迫下的根冠中平均石淀粉水解速度,叶片中的脱落酸的积累量以及SDO、CAT、PO Through collection,sorting out and analysis of data, more than 20 kindsof physiological and biochemical indexes were found to have been used in drought resis-tance identification,Among them,leaf water potential,relative water content,bouid wa-ter content,water-absorbing capacity and germination percentage of seeds,permeanateadjustment of cell ability,leaf swelling pressure,super-weak-luminescence,intensity ofchlorophyl fluorescence,intensity of breathing and photosynthesis,water loss rate of ex-cised leaf,tolerance of stem and leaf to chemical dehydration are the reliable physiologi-cal indexes under water stress.At the same time,the reliable biochemical indexes are hy-drolysis speed of statolith in root cap,accumulation of abscisic acid in leaf,activity of SOD,CAT,POD,GR,ATP,protein hydrolytic enzyme,etc.In,addition,water use effi-ciency,water saturation and unsaturation,canopy temperature, resistance of stomatal ex-pansion among the physiological indexes,and the proline accumulation and anti-oxidizercontents(i.e.Vitamine E,Vitamine C and carotenoid)among the biochemical indexes aredifficult to determine since there are different viewpoints on the research or litter re-search on them has been reported so that they must be very careful in using them or theyneed to be further researched。
作者 周桂莲 杨慧霞 Zhou Guilian(Shaanxi Academy of Agricultural Scicnces,Yanling,712100)Yang Huixia(Northwestern Agricultural University,Yangiing,712100)
出处 《干旱地区农业研究》 CSCD 北大核心 1996年第2期 65-71,共7页 Agricultural Research in the Arid Areas
关键词 小麦 抗旱性 叶水势 酶活性 wheat drought resistance indexes leaf water potential enzyme activity
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