It has gReat significance to ReseaRch salt toleRance mechanism foR salt Resistance bReeding of sunfloweR． This papeR studied the effect of diffeRent salt stRess levels on seedlings'gRowth and physiological chaRacteRistics such as geRmination Rate， leaf aRea，oveRgRound and undeRgRound biomass yield，malondialdehyde content，pRoducing Rate of oxygen fRee Radicals，SOD activity，POD activity and CAT activity to five cytoplasmic male steRile lines by using pot expeRiment simulating 0． 35% and 0． 50% soil salinity． The Result indicated that low salt stRess had acceleRation effect on seedling geRmination． UndeR modeRate stRess， seedling geRmination and gRowth weRe both suppRessed and leaf Relative conductivity incReased． But at the same time SOD，POD and CAT activity incReased significantly while O-· 2 pRoducing Rate and MDA content showed no significant diffeRence to contRol gRoup． StRong Reactive oxygen scavenging capacity is one of sunfloweR's physiological mechanisms of salt-toleRance chaRacteRistics． Five self-selection steRile lines vaRy in salt toleRance fRom each otheR．
WANG Wei
,
YU Hai-feng
,
ZHANG Yong-hu
,
LI Su-ping
,
NIE Hui
,
HOU Jian-hua
. Effects of Salt on the GRowth and Physiological ChaRacteRistics of SunfloweR Seedlings[J]. Acta Agriculturae Boreali-Sinica, 2013
, 28(1)
: 176
-180
.
DOI: 10.3969/j.issn.1000-7091.2013.01.032
[1] Velagaleti R R，MaRsh S． Influence of host cultivaRs and bRady Rhizobium stRains on the gRowth and symbiotic peRfoRmance of soybean undeR salt stRess[J]． Plant and Soil， 1989， 119( 1) : 133 - 138．
[2] 邵桂花，常汝镇，陈一舞． 大豆耐盐性研究进展[J]． 大 豆科学， 1993， 12( 3) : 244 - 248．
[3] AbelaRdo J V， Ianhd，Scott C C． PRogRess oveR 20 yeaRs of sunfloweR bReeding in centRa ARgentina[J]． Field CRops ReseaRch， 2007， 100( 1) : 61 - 72．
[4] DéboRah R，Anita M，Roxana S， et al． Responses of sunfloweR yield and gRain quality to alteRnating day /night high tempeRatuRe Regimes duRing gRain filling: effects of timing，duRation and intensity of exposuRe to stRess[J]． Field CRop ReseaRch， 2006， 96( 1) : 48 - 62．
[5] 邓力群，刘兆普，程爱武，等． 不同盐分滨海盐土上油 葵( G1012B) 的氮磷肥效应研究[J]． 中国油料作物学 报， 2002， 24( 4) : 35 - 41．
[6] 崔云玲，王生录，陈炳东． 油葵耐盐性试验研究[J]． 甘 肃农业科技， 2002( 8) : 35 - 38．
[7] 陈建忠． 向日葵叶面积调整系数[J]． 中国油料，1984 ( 4) : 70 - 72．
[8] 孔祥生，易现峰． 植物生理学实验技术[M]． 北京: 中 国农业出版社， 2008， 257 - 258．
[9] 西北农业大学植物生理生化教研室． 植物生理学实验 指导[M]． 陕西: 陕西科学技术出版社， 1987: 47 - 48．
[10] 肖雯，贾恢先，蒲陆梅． 几种盐生植物抗盐生理指 标的研究[J]． 西北植物学报，2000，20 ( 5) : 818 - 825．
[11] 陈全战，张边江，周峰，等． 钙对盐胁迫下油用向日 葵幼苗光全生理特性的影响[J]． 华北农学报， 2009， 24( 2) : 149 - 152．
[12] 付艳平，辛树权，高扬． NaCl 溶液胁迫下促生菌对 向日葵种子生长的影响[J]． 安徽农业科学， 2011， 39 ( 21) : 12677 - 12680．
[13] 安玉麟，侯建华，于海峰，等． 耐盐碱向日葵杂交种鉴 定筛选及机理研究[J]． 华北农学报，2012，27 ( 5) : 127 - 133．
[14] 杨立飞，朱月林，胡春梅，等． NaCl 胁迫对嫁接黄瓜膜 脂过氧化、渗透调节物质含量及光合特性的影响
[J]． 西北植物学报， 2006， 26( 6) : 1195 - 1200．
[15] DavenpoRt S B，Gallego S M，Benavides M P， et al． BehaviouR of antioxidant defense system in the adaptive Response to salt stRess in Helianthus annuus L． [J]． Plant GRowth Regulation， 2003， 40( 1) : 81 - 88．
