西南林业大学学报2017，Vol.37Issue(5)：35-41,7.DOI:10.11929/j.issn.2095-1914.2017.05.006
干旱与复水对中华润楠幼苗生长及生理特性的影响
Growth and Physiological Characteristics of Machilus chinensis Seedling Under Drought and Rewatering
摘要
Abstract
The effects of drought and rewatering on the growth and physiological characteristics of Machilus chinensis were studied by pot experiment. The results showed that under the drought stress, the growth of the seed-lings has been greatly affected, and the growth of the diameter increased with the time. Seedling roots, stems, leav-es and soil natural water content showed a downward trend. The various osmotic adjustment material content in leaf have change, the contents of chlorophyll, carotenoid, and soluble protein were increased first and then decreased. And the content of MDA and proline increased with the increase of stress time. The growth of seedlings after rewa-tering treatment, the increase of seedling height and the increase of ground diameter were inversely proportional to the intensity of stress. There was a negative correlation between the restoration degree of soil and root natural water content and the degree of damage, the natural water content of stem and leaf, MDA, soluble protein and proline in the leaf were basically restored to normal level, indicating that M. chinensis showed a certain resistance to water stress.关键词
干旱胁迫/复水/中华润楠/幼苗/生长特性/生理特性Key words
drought stress/rewatering/Machilus chinensis/seedling/growth characteristics/physiological characteristics分类
农业科技引用本文复制引用
林伟通,庄雪影,詹红星,刘强,郭文妹,唐熙媛,吴永彬,郑明轩..干旱与复水对中华润楠幼苗生长及生理特性的影响[J].西南林业大学学报,2017,37(5):35-41,7.基金项目
深圳市科技创新委科技研发项目 (CXZZ20150430105402792) 资助 （CXZZ20150430105402792）
广东省林业科技创新专项资金项目 (2008KJCX010-3、2012KJCX014-01) 资助. （2008KJCX010-3、2012KJCX014-01）
