黑龙江农业科学Issue(8)：35-38,39,5.DOI:10.11942/j.issn1002-2767.2016.08.0035
外源硒肥对盐碱地油葵幼苗生长和生理特性的影响
Effect of Se Fertilizer Application on Seedling Growth and Physiological Features of Oil Sunflower in Saline-alkali Soil
摘要
Abstract
In order to enhance the plant's resistance to environmental stress ,and ensure the normal grow th of plants ,the effects of different selenium concentration on several physiological features of oil sunflower seedling in saline‐alkali soil were studied .The results showed that optimal concentration of Se fertilizer application (200 g·hm‐2 ) promoted plant grow th ,and increased plant height ,stem diameter ,SPAD value and dry matter of oil sunflower seedling ,otherwise inhibited its growth ;with Se fertilizer application MDA content of oil sunflower leaves began to decrease ,and reached the minimum value in Se4(400 g·hm‐2 ) treatment ,decreased by 45 .8%compared to the control treatment ;the content of Pro increased first and then declined ,and reached the high‐est value in Se2(200 g·hm‐2 ) treatment ,increased by 8 .9% .Three kinds of antioxidant enzymes activities all increased first and then decreased .The activities of peroxidase ,catalase and superoxide dismutase reached max‐imun respectively at Se1 ,Se2 ,Se3 .Glutathione content decreased first and then increased ,and reached lowest value in Se2 ,decreased by 16 .5% with CK .Considering the changes in oil sunflower morphological index and physiological indicators of oil sunflower seedling ,soil application of selenium fertilizer of 200 g·hm‐2 could in‐crease the antioxidant capacity of oil sunflower .关键词
硒/油葵/酶活性/幼苗生长/生理特性Key words
selenium/oil sunflower/enzyme activity分类
农业科技引用本文复制引用
昝亚玲,王磊..外源硒肥对盐碱地油葵幼苗生长和生理特性的影响[J].黑龙江农业科学,2016,(8):35-38,39,5.基金项目
国家自然科学基金资助项目 （）
