在渗透胁迫条件下不同花生( Arachis hypogaea Linn .) 品种的水势、质膜相对透性( RPMP) 、超氧离子、丙二醛( MDA) 含量和超氧化物歧化酶( SOD) 活性两两之间都呈显著相关。 而花生各品种的过氧化氢酶活性、过氧化物酶活性、谷胱甘肽含量和抗坏血酸含量与水势、RPMP、超氧离子、MDA 含量和 SOD 活性等指标之间相关程度波动较大。 水势对 RPMP、MDA 含量、超氧离子和SOD 活性的弹性系数处于负效应阶段。 SOD 活性对 RPMP、MDA 含量和超氧离子的弹性系数的效应处于递减阶段。 超氧离子对 RPMP 和 MDA 含量的弹性系数的效应处于递减阶段。 各指标的弹性系数和相应的边际量因花生品种的抗旱能力不同而异。
 

This paper dealed with a quantitative analysis of the effect of different physiological indexes on cell injury of detached leaves of peanut ( Arachis hypogaea Linn .) under osmotic stress .The result showed that the correlations between water potential, relative plasma membrane permeability ( RPMP) , MDA, superoxides and SOD were significant .The correlations between CAT, POD, GSH, AsA and water potential, RPMP, superoxides, MDA, and SOD varied rather highly with different peanut varieties .The effects of water potential on productive elasticities of RPMP, MDA, superoxides and SOD were in negative stage .The effects of SOD on productive elasticities of RPMP, MDA and superoxides were in decreasing progressively stage .The effects of superoxides on productive elasticities of RPMP and MDA were in decreasing progressively stage.The productive elasticities and responsible marginal yields are varied with the drought resistant ability of various peanut varieties .