Growth and development of date palm ( Phoenix dactylifera L. ) seedlings under drought and salinity stresses
Growth and development of date palm ( Phoenix dactylifera L. ) seedlings under drought and salinity stresses
复制标题
干旱和盐胁迫下海枣 (Phoenix dactylifera L.) 幼苗的生长发育
DOI：
10.5897/ajb2005.000-3183
复制
发表时间：
2005
影响因子：
--
通讯作者：
B. Alain
中科院分区：
文献类型：
--
作者：
S. Djibril;O. Mohamed;D. Diaga;D. Diegane;Bf Abaye;S. Maurice;B. Alain
本研究旨在评估海枣 (Phoenix dactylifera L.) 在植物发育早期阶段对聚乙二醇 (PEG) 或 NaCl 诱导的渗透胁迫的耐受性。对毛里塔尼亚广泛种植的两个品种 Nakhla hamra (NHH) 和 Tijib 进行了测试。当PEG诱导水分亏缺时，NHH表现出上胚轴长度、初生根长度、次生根数量和脯氨酸含量的增加。相比之下，在相同的发育和生化特性的基础上，Tijib品种对盐胁迫的耐受性更强。讨论了不同生长条件下品种行为的差异。
The present investigation has been performed to evaluate date palm (Phoenix dactylifera L.) tolerance to osmotic stress induced by polyethylene glycol (PEG) or NaCl during the early stages of plant development. Two varieties Nakhla hamra (NHH) and Tijib widely cultivated in Mauritania were tested. NHH showed increasing of epicotyl length, primary root length, secondary root number and proline content when water deficit was induced by PEG. In contrast, on the basis of the same developmental and biochemical characters, the Tijib cultivar was more tolerant in salinity stress. This difference of cultivars’ behavior according the growth conditions is discussed.