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当前位置: 首页 > 文章 > 结荚鼓粒期土壤水分胁迫对不同大豆品种形态和生理特性的影响 中国油料作物学报 2011,33 (4) 362-367
Position: Home > Articles > Effects of soil water stress during seed formation stage on morphological and physiological characteristics in various soybean varieties Chinese Journal of Oil Crop Sciences 2011,33 (4) 362-367

结荚鼓粒期土壤水分胁迫对不同大豆品种形态和生理特性的影响

作  者：
任海祥;童淑媛;杜维广;邵广忠;杜震宇;宗春美;岳岩磊;王玉莲
单  位：
黑龙江省农业科学院牡丹江分院/国家大豆改良中心牡丹江试验站;黑龙江农业经济职业学院
关键词：
大豆;抗旱性;土壤水分胁迫;产量;形态和生理特性
摘  要：
为探讨土壤水分胁迫对大豆品种形态性状和生理特性的影响,以3个抗旱性不同的大豆品种(合丰25、黑农44、晋豆21)为试验材料,在盆栽条件下,于大豆始荚期至鼓粒期进行中度和严重土壤水分胁迫试验,对形态性状、叶绿素含量、光合速率、超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性、过氧化氢酶(CAT)活性进行测定。结果表明,供试品种抗旱性依次是晋豆21>黑农44>合丰25。干旱胁迫下,一级抗旱类型的晋豆21表现出较强的生长优势,同一水分供给条件下,其株高、单株荚数、单株粒数、单株产量、叶绿素含量、净光合速率(Pn)、POD活性均高于较耐旱的黑农44和合丰25;而气孔导度和蒸腾速率明显低于其它两个品种,且在严重水分胁迫下与对照相比,其降低幅度均显著高于其它两个品种,晋豆21在水分胁迫条件下表现出较高的水分利用效率。说明这些形态性状和生理指标可作为大豆抗旱性鉴定指标加以综合利用。
译  名：
Effects of soil water stress during seed formation stage on morphological and physiological characteristics in various soybean varieties
作  者：
REN Hai-xiang1,TONG Shu-yuan2,DU Wei-guang1,SHAO Guang-zhong1, DU Zhen-yu2,ZONG Chun-mei1,YUE Yan-lei1,WANG Yu-lian2(1.Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences/ Mudanjiang Experimental Station National Center for Soybean Improvement,Mudanjiang 157041,China; 2.Heilongjiang Agricultural Economy Vocational College,Mudanjiang157041,China)
关键词：
Soybean;Drought tolerance;Soil water stress;Yeild;Morphology and physiological characteristics
摘  要：
In order to investigate the effects of soil water stress on morphology and physiological characteristics of soybean,three different drought-resistant soybean varieties(Hefeng25,Heinong44 and Jindou21) were selected for pot experiment.Moderate and severe soil water stress were applied from beginning of pod formation to seed filling stage.Morphological characteristics,chlorophyll content,photosynthetic rate,SOD activity,POD activity,CAT activity were examined.The results of drought resistance of tested cultivars were shown as: Jindou21 > Heinong44 > Hefeng25.Jindou21 of the most resistant rootstocks demonstrated the powerful growth advantage under soil water stress.Many indices of Jindou21 were higher than Heinong44 and Hefeng25,including plant height,pods number per plant,grain number per plant,grain weight per plant,chlorophyll content,Pn(photosynthetic rate) and POD activity.But GS(stomatal conductance) and Tr(transpiration rate) of Jindou21 were higher than Heinong44 and Hefeng25,their decrease were significantly higher than Heinong44 and Hefeng25 under severe soil water stress.Jindou21 had higher water use efficiency.These morphological characteristics and physiological index could be used to evaluate drought resistance of soybean.

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