王志强,吴翠云,杨哲,杨凡,武彦昌.盐碱胁迫对酸枣幼苗生长及生理生化特性的影响[J].干旱地区农业研究,2018,36(2):153~160 |
盐碱胁迫对酸枣幼苗生长及生理生化特性的影响 |
Effect of saline-alkali stress on growth, physiological and biochemical characteristics of wild jujube seedlings |
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DOI:10.7606/j.issn.1000-7601.2018.02.23 |
中文关键词: 酸枣 盐碱胁迫 生理生化指标 综合评价 |
英文关键词:wlid jujube saline-alkali stress physiological and biochemical characteristics proline content |
基金项目:国家自然科学基金项目(31360465);兵团科技创新团队建设项目(2014CC006) |
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中文摘要: |
以陕西、山西、河北、辽宁4个种源地酸枣为研究材料,采用营养液基质培试验,研究不同浓度盐碱胁迫对4个种源地一年生酸枣幼苗的生长和生理生化指标的影响。结果表明:0.3%、0.6%和0.9%的盐碱混合胁迫均降低了酸枣的株高、茎粗和生物量,胁迫浓度越大,抑制作用越明显,其中陕西酸枣的株高和茎粗在0.9%胁迫下最低,分别为48.55、4.10 mm,山西酸枣的总生物量相比CK下降最多,降低了27.79 g·株-1;除酸枣叶片可溶性糖含量在胁迫处理10~50 d下降,70~110 d上升外,酸枣叶片丙二醛(MDA)、脯氨酸(Pro)、可溶性蛋白含量均随浓度的增加和胁迫时间的延长呈逐渐增加趋势,胁迫至110 d时,在0.9%胁迫下的辽宁酸枣叶片MDA含量、陕西的可溶性蛋白含量和河北的脯氨酸含量均达最大值,分别为20.81 mmol·g-1、93.53 mg·g-1、670.92 μg·g-1;利用隶属函数法对4个种源地酸枣进行耐性综合评价得出,各种源地酸枣耐盐碱性由强到弱的顺序为:河北>辽宁>山西>陕西。 |
英文摘要: |
The experimental materials are four kinds of wild jujube seedlings originated from Shaanxi, Shanxi, Hebei and Liaoning provinces, nutrient solution culture test matrix. The results showed that: 0.3%, 0.6% and 0.9% salt alkaline stress reduced wild jujube height, stem diameter and biomass, With the increase of stress concentrations, the inhibition was more obvious, the plant height and stem diameter of Shaanxi wild jujube were the lowest under 0.9% stress, with 48.55 mm and 4.10 mm, compared with the CK respectively. The total biomass of Shanxi jujube decreased the most, and reduced the 27.79 g·plant-1; except the soluble sugar content in wild jujube leaf stress, 10~50 d decreased 70~110 d rise. At 0.9% concentration, stress for 110 d, MDA content of Liaoning wild jujube leaves, Soluble protein content of Shaanxi wild jujube leaves and proline content of Hebei wild jujube leaves were maximum with 20.81 mmol·g-1, 93.53 mg·g-1, 670.92 μg·g-1 respectively. Comprehensive evaluation; Using subordinate function of four kinds of source regions wild jujube comprehensive evaluation results concluded that a variety of sources wild jujube salinity from strong to weak are: Hebei>Liaoning>Shanxi>Shaanxi. |
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