干旱胁迫对6个类型大叶女贞的生理影响及抗旱性评价

Physiological response of six types of Ligustrum lucidum Ait to drought stress and evaluation of drought resistance

利用盆栽方式,测定干旱胁迫下6个类型(L1:窄冠型、L2:宽冠型、L3:黄皮型、L4黑皮型、L5:大叶型、L6:小叶型)大叶女贞2年生嫁接苗的丙二醛、细胞膜透性、脯氨酸等生理指标,研究其对干旱胁迫的生理响应,并用隶属函数法进行抗旱性综合评价。抗旱性综合评价表明:6个类型大叶女贞的抗旱性强弱为L6>L4>L3>L5>L2>L1。

Physiological parameters such as MDA,cell membrane permeability,proline content,etc.were measured on six types of two-year（L1—type of narrow crown ;L2—type of wide crown;L3—type of yellow bark tree;L4—type of black bark tree;L5—type of large-leaved;L6—type of leaflets）Ligustrum lucidum Ait grafted seeding under drought stress by potting experiment.The physiological response of the six types of Ligustrum lucid-um Ait under drought stress was analyzed and the drought resistance was evaluated by subordinate function.The subordinate function was used to rank their drought tolerance and the order was：L6 〉L4 〉L3 〉L5 〉L2 〉L1.