ZHANG Huan yu,LI Ye.Study on Physiological and Biochemical Responses to Salt and Alkali Stress in Two Varieties of Eggplant[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(03):37-40.[doi:10.11942/j.issn1002-2767.2015.03.0037]
盐碱胁迫下两个茄子品种生理指标和耐盐碱性研究
- Title:
- Study on Physiological and Biochemical Responses to Salt and Alkali Stress in Two Varieties of Eggplant
- 文章编号:
- 10022767（2015）03003704
- Keywords:
- eggplant; saline and alkali stress; biochemical indexes
- 分类号:
- S641.1
- 文献标志码:
- A
- 摘要:
- 为了筛选耐盐碱种植资源和培育适应盐碱地区种植的优质茄子品种，以齐杂茄2号和哈杂茄3号为试验材料，模拟盐碱化土盐组分配制盐碱液进行盐碱胁迫处理，以处理后0、10、20、40和60 d的试验组和对照组的2个茄子品种表型性状、单株总产量以及各项生理指标进行比较分析。结果表明：盐碱胁迫下，茄子细胞膜通透性提高，叶绿素含量显著降低，丙二醛含量显著上升，脯氨酸含量显著升高，超氧化物歧化酶（SOD）含量变化为先上升后下降，后期再次上升。说明不同茄子品种在盐碱胁迫下呈现不同的耐受力，对北方地区的盐碱土地，哈杂茄3号的耐盐碱性优于齐杂茄2号，适合推广种植。分析盐碱胁迫下各生理指标相关性可知茄子单株总产量与表型性状和叶绿素含量呈显著负相关，而与叶片相对电导率、丙二醛含量和脯氨酸含量呈显著正相关。
- Abstract:
- To select the salttolerant resources and cultivate high quality varieties of eggplant which adapt saline area,the seedling of eggplant two varieties (Qizaqie 2 and Hazaqie 3) were treated with solution containing salt and alkali (50 mmol?L-1,pH 10).Phenotypic traits,yield per plant,and various physiological indexes were determined at 0,10,20,40,60 day after treating.The results showed that under salt and alkali stress,eggplant cell membrane permeability increased; chlorophyll content decreased significantly; MDA content and proline content increased; superoxide dismutase (SOD) were first increased and then decreased,the late rise again.Experimental results showed that there were differentiate tolerance of different eggplant varieties under salt and alkali stress,Hazaqie 3 was more suitable for planting in the saline alkali land of northern area of China,compared with Qizaqie 2.Furthermore,the correlation analysis of physiological index under salt stress showed that eggplant yield per plant and phenotypic traits and chlorophyll content was negatively correlated,while the relative conductivity,MDA content and proline content had significant positive correlation with yield.
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备注/Memo
张环宇（1985-），女，黑龙江省哈尔滨市人，硕士，农艺师，从事茄子遗传育种和分子育种研究。E-mail：eggplant_2010@163.com。