安徽农业科学2016，Vol.44Issue(33)：15-16,41,3.
不同盐碱区菊芋植株K＋和Na＋的分布特征
Distribution Characteristics of K +and Na +in Helianthus tuberosus L.in Different Saline and Alkaline Area
摘要
Abstract
Objective] To study the effects of different saline and alkaline areas on the ion distribution in Helianthus tuberosus L..[Method] With red tuber variety JY1 of H.tuberosus and white tuber varieties NY1, BY1 of H.tuberosus as test materials, ion distribution characteristics in the tuber, stem and leaves of H.tuberosus in three kinds of saline and alkaline areas of non-saline, low-saline and heavy-saline were studied. [Result] With the increase of soil salinity, K +content in the stem and leaves of H.tuberosus increased.K +content in the stem of H.tuberosus significantly increased, and it reached 16.1 mg/g in heavy-saline area, which was 7.0 times higher than that in the leaves.K +content in the tu-ber of H.tuberosus had little change.With the increase of soil salinity, Na +content in the stem, leaves and tuber of H.tuberosus gradually in-creased.Na +content in the stem had the maximum increasing amplitude , and that under heavy salt conditions was 11.0 times higher than that under non salt conditions.Na +content in the leaves of H.tuberosus had no significant change.Under heavy salt conditions, the order of Na +content in different parts was stem >tuber>leaves.The order of K +/Na +in different parts was leaves >tuber>stem.[ Conclusion] The re-search can provide theoretical basis for the screening of salt-tolerant varieties and the cultivation of H.tuberosus in different saline and alkaline areas.关键词
盐碱区/菊芋/离子分布Key words
Saline and alkaline area/Helianthus tuberosus L./Ion distribution分类
农业科技引用本文复制引用
张国新,王秀萍,刘雅辉,薛志忠..不同盐碱区菊芋植株K＋和Na＋的分布特征[J].安徽农业科学,2016,44(33):15-16,41,3.基金项目
河北省财政专项（A06090101，F15R16004）；河北省科技项目（152776122D）。 （）
