新疆农业科学2018，Vol.55Issue(10)：1819-1828,10.DOI:10.6048/j.issn.1001-4330.2018.10.007
盐和干旱胁迫对芥菜型油菜种子萌发及幼苗生长的影响
Effects of NaCl and Mannitol Stress on Seed Germination and Seedling Growth of Rape Seed (Brassica juncea L.)
摘要
Abstract
[Objective] This project aims to carry out an evaluation of responses of seed germination and seedling growth of three cultivars of Brassica juncea to salt stress and drought stress in order to provide scientific reference for the tolerance of rape to different salt and drought stress.[Method]Three different cultivars of Brassica juncea were treated with different concentrations of NaCl and Mannitol to study the effects on seed germination and seedling growth of three kinds of Brassica juncea.[Result] (1) With the increase of NaCl and Mannitol concentration, the seed germination rate, plant height and seedling root length of three cultivars decreased. SG of the three cultivars at lower concentrations of NaCl (＜150 mmol/L) and Mannital (＜200 mmol/L) was similar to those of the control (SG 0 mmol/L); SG at higher concentrations of NaCl (≥200 mmol/L) and Mannital (≥300 mmol/L) significantly decreased, but SG of CBJ004-34 still exceeded 78％. (2) At lower concentrations of NaCl (＜150 mmol/L) and Mannital (＜100 mmol/L), the seedling root length of Xinyou 9 and CBJ004-34 were similar to that of the control. At lower concentration of NaCl (＜100 mmol/L), the seedling root length of Xinyou 9 was improved.[Conclusion]These results showed that Xinyou 9 and CBJ004-34 have good salt tolerance and drought tolerance, which has provided a reference for breeding rape salt and drought tolerant materials.关键词
芥菜型油菜/盐胁迫/干旱胁迫/种子萌发/根长Key words
Brassica juncea/salt stress/drought stress/seed germination/root length分类
农业科技引用本文复制引用
热孜亚·麦麦提,顾元国,李强,王娟,侯献飞,贾东海,买买提·伊明..盐和干旱胁迫对芥菜型油菜种子萌发及幼苗生长的影响[J].新疆农业科学,2018,55(10):1819-1828,10.基金项目
国家重点研发计划项目"长江上游及北方油菜高产优质适宜机械化新品种培育" (2018YFD0100500) （2018YFD0100500）
新疆农科院青年基金"甘蓝型油菜OguCMS恢复系抗根肿病分子标记开发及遗传转育" (xjnkq-2018001) （xjnkq-2018001）
