摘要
以宁杞1号、宁杞5号、宁杞7号、宁农杞9号4个宁夏枸杞主栽品种无性扦插苗为试验材料,研究在300 mmol/L浓度的NaCl溶液胁迫下,不同枸杞品种的植株生物量、叶片生理指标、根系形态等14个性状的差异性,综合评价不同枸杞品种的耐盐性,为枸杞逆境建园提供理论基础。结果表明,盐胁迫能够抑制枸杞茎、叶、根的生长,降低植株生物量;同时,盐胁迫对枸杞根系形态的影响主要表现在降低根长、根投影面积和根表面积方面;结合生理指标进行方差分析和主成分分析,认为4个枸杞主栽品种对盐胁迫的抗性差异较大,耐盐性由强到弱依次为:宁农杞9号>宁杞1号>宁杞5号>宁杞7号。
The asexual seedlings of the main varieties of Lycium barbarum L.,‘Ningqi No.1’,‘Ningqi No.5’,‘Ningqi No.7’and‘Ningnongqi No.9’were used as experimental materials.The differences of 14 traits in biomass,root morphology and physiological indexes of different Lycium barbarum L.varieties under the stress of 300 mmol/L NaCl solution were studied.And the comprehensive evaluation of the salt tolerance of different Lycium barbarum L.varieties,providing a theoretical basis for the construction of the wolfberry park.The results showed that salt stress can inhibit the growth of stolons,leaves and roots and reduce plant biomass;at the same time,the effect of salt stress on the root morphology of Lycium barbarum L.was mainly in reducing root length,root projected area and root surface area;combining the physiological indicators with variance analysis and principal component analysis,it is considered that the resistance of the four main varieties to salt stress is different.And the order of salt tolerance from strong to weak is‘Ningnongqi No.9’>‘Ningqi No.1’>‘Ningqi No.5’>‘Ningqi No.7’.
作者
梁晓婕
李越鲲
王亚军
段淋渊
安巍
LIANG Xiao-jie(Institute of Wolfberry Engineering Technology,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002)
出处
《宁夏农林科技》
2019年第6期17-21,共5页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏回族自治区农业科技自主创新专项全产业链创新示范项目(QCYL-2018-05-08),宁夏回族自治区农业科技自主创新专项全产业链创新示范项目(QCYL-2018-05-01)国家自然科学基金项目(31460211)
关键词
宁夏枸杞
主栽品种
耐盐性
综合评价
Lycium barbarum L.
Main varieties
Salt tolerance
Comprehensive evaluation
