NaCl胁迫对中国南瓜杂交种成株期根系生理生化特征的影响.pdf

, 2007, 27( 10) : 2052- 2058 A cta Bot. Bor eal .-Occid ent . Sin . : 1000-4025(2007) 10-2052-07 * NaCl 1, 2 1* 1 1 1 周俊国 , 朱月林 , 刘正鲁 , 张古文 , 王建国 ( 1 , 210095;2 , 453003) : 360-3 112-2 , NaCl . : ( 1) NaCl 2 , , . ( 2) NaCl , . ( 3) NaCl , 2 , - . (4) 2 O2 NaCl , , ; MDA , , - ; O2 M DA . ( 5) NaCl 2 , . , 360-3 112-2 NaCl , , , . : ; ; NaCl ; ; : Q945. 78 : A Roots Physiological and Biochemical Characteristics of Cucurbita moschata Hybrids at Adult Plant Stage under NaCl Stress 1, 2 1* 1 1 1 ZHOU J n-g o , ZHU Y e-lin , LIU Zheng-l , ZHAN G G -w en , WANG Jian- g o ( 1 College of H ortic lt re, Nanjing Agric lt ral University, Nanjing 210095, China; 2 H ortic lt ral Departm ent of Instit te of H enan Science and T echnology, Xinxiang, Henan 453003, China) Abstract: To eval ate the salt tolerance of 360-3 112-2 hybrid ( Cucurbita moschata D ch. ) at ad lt plant stage (w ith 10 leaves) , w hich had been screened o t at seedling stage, the roots physiological and bio- chemical characteristics and plants growth w ere f rther st died comparing w ith C.f icif olia nder 0 mmol L- 1 and 80 mmolL- 1 NaCl stress in condition of sol te c lt re. T he res lts show ed: ( 1) NaCl stress had low er inhibitory effect on the plants growth of hybrid w hich reflected in the red ction of fresh w eight of roots and shoots, length of main stem, n mber of f nctional leaves, especially in individ al areas of the yo ngest f nctional leaves comparing w ith C.f icif olia based on the investigation data at 9 day after NaCl treatment ( DAT ) . ( 2) NaCl treatment co ld promote the roots vigor of