盐胁迫对多花木蓝种子萌发影响.doc
盐胁迫对多花木蓝种子萌发影响
盐胁迫对多花木蓝种子萌发影响 摘要:采用纸培法对多花木蓝(Indigofera amblyantha Craib in Not.)种子进行盐胁迫试验,设置了0(CK)、2、4、8、12 g/L 5个浓度梯度的NaCl溶液及NaCl+KCl溶液进行处理,置于光照培养箱中对其进行观察,并测定其发芽率、发芽势、发芽指数、活力指数等指标。结果表明,低浓度的盐溶液可以促进种子萌发,高浓度的盐溶液则会推迟种子发芽,当盐浓度大于8g/L时,明显延迟种子发芽时间;在盐浓度较高(12 g/L)时,发芽率仍然能达55%~70%左右,但高浓度下的发芽质量较差;多花木蓝种子的发芽率、发芽势等指标均随盐浓度升高而呈下降趋势,其中,NaCl+KCl溶液浓度为12 g/L时,种子发芽率最低,清水及NaCl溶液浓度为2、4 g/L时,种子发芽率最高。不同浓度的盐溶液胁迫对发芽率等指标的影响都达到了极显著水平。 关键词:多花木蓝;种子;萌发;耐盐性 中图分类号:S793.9;S723.1+31.1;Q945.78 文献标识码:A文章编号:0439-8114(2011)02-0321-04 The Effects of Salt Stress on Seed Germination of Indigofera amblyantha WANG Wen-en,LI Ying,SU Nong,YU Wen-cheng (College of Horticulture and Forestry Sciences, Huazhong Agricultural University,Wuhan 430070, China) Abstract: Filter paper and culture dish was used to cultivate Indigofera amblyantha Craib in Not. seeds under salt stress. Five different concentrations of NaCl solution and NaCl + KCl solution stress were used to deal with the I. amblyantha seeds: 0 (CK), 2 g/L, 4 g/L, 8 g/L and 12 g/L. Culture dishes were placed in an illuminating incubator; and the germination rate, germination trend, germination index and vigor index were determined during the experiment. The results showed that high concentration of salt solution would postpone seed germination process. When the salt concentration was higher than 8g/L, the germination time was significantly delayed. In high salt concentrations like 12g/L, the germination rate was still able to achieve 55% to 70%, however, the germination quality was poor. The germination rate, germination trend and other indicators declined clearly as the salt concentration increased. The seed germination was at the lowest point when the concentration of NaCl + KCl was 12g/L. Meanwhile, 2 g/L and 4 g/L NaCl solutions in water, the seed germination rates were on the highest level. The effect of salt stress with different salt concentrations on the germination rate reached the significant level. Key words: Indigofera amblya
相关知识
本科生毕业论文盐胁迫对多花黑麦草种子萌发及幼苗生长的影响.doc
水盐胁迫对阿尔泰狗娃花种子萌发的影响
硝普钠对盐胁迫下凤仙花种子萌发及幼苗生理指标的影响
盐胁迫对大花四照花种子萌发与幼苗生长的影响
盐碱胁迫对红花种子萌发的影响
盐胁迫下乙烯调控拟南芥种子萌发的作用机制
NaCl胁迫对鸡冠花种子萌发与抗氧化酶活性的影响
不同盐溶液的引发对向日葵种子萌发的影响
干旱与盐胁迫对二十五种花卉种子萌发影响的评价与花海植物筛选
不同水盐条件对塔里木河下游土壤种子库种子萌发的影响
网址: 盐胁迫对多花木蓝种子萌发影响.doc https://www.huajiangbk.com/newsview2309069.html
上一篇: 花木蓝(Indigofera k |
下一篇: 花木兰2电影迅雷下载指数 |
推荐分享

- 1君子兰什么品种最名贵 十大名 4012
- 2世界上最名贵的10种兰花图片 3364
- 3花圈挽联怎么写? 3286
- 4迷信说家里不能放假花 家里摆 1878
- 5香山红叶什么时候红 1493
- 6花的意思,花的解释,花的拼音 1210
- 7教师节送什么花最合适 1167
- 8勿忘我花图片 1103
- 9橄榄枝的象征意义 1093
- 10洛阳的市花 1039