浙江农林大学学报2012，Vol.29Issue(1)：23-28,6.
硝酸镧对董棕幼苗耐寒性的影响
La(NO3)3 and cold tolerance with Caryota urens seedlings
摘要
Abstract
The study was performed to investigate the effects of La(NO3)3 on the cold tolerance of Caryota urens seedlings. Effects of La(NO3)3 were tested by spraying the foliage of C. Urens with 0, 100, 350 and 500 mg·L-1 La(NO3)3 solution. Then, physiological indices, including activity of superoxide dismutase (SOD) and peroxi dase (POD) as well as the content of malondialdehyde (MDA) , proline, soluble protein, chlorophyll, and chlorophyll a/b, were determined after treated in 25 ℃(1), 5 t, and 25 ℃(2) for 24 h respectively in turn. It was indicated that all the above-mentioned physiological indices varied with different concentrations of La(NO3)3. Results of the fuzzy membership functions comprehensive evaluation for different La(NO3)3 solution at 25 ℃ (2) were 0.39 for 0 mg·L-1, 0.34 for 100 mg·L-1, 0.85 for 350 mg·L-1, and 0.76 for 500 mg·L-1. It was concluded that spraying leaves with different concentrations of La(NO3)3 could affect the cold tolerance of C. Urens seedlings with the most effective being 350 mg·L-1.关键词
植物学/硝酸镧/董棕/生理指标/耐寒性Key words
botany/ La(NO3)3/ Caryota urens/ physiological indices/ cold tolerance分类
农业科技引用本文复制引用
阮志平,黄全能,王芬芬,姚碧艳,刘与明,李振基..硝酸镧对董棕幼苗耐寒性的影响[J].浙江农林大学学报,2012,29(1):23-28,6.基金项目
厦门市科技计划资助项目(3502Z20092019) （3502Z20092019）
厦门市建设与管理局科技资助项目(2008-1-7) （2008-1-7）
