薄壳山核桃种子及种壳化感效应研究  

Allelopathic Effects of Pecan Seeds and Shells

作　　者：朱海军[1,2] 俞卫东[3] 曹仁勇[3] 吕梅[3] 刘广勤[2] 曹福亮[1] 

机构地区：[1]南京林业大学林学院,江苏南京210037 [2]江苏省农业科学院园艺研究所,江苏南京210014 [3]江苏农林职业技术学院,江苏句容212400

出　　处：《江西农业大学学报》2015年第1期96-100,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：中央财政林业科技推广示范资金项目([2013]TK26);江苏省林业三新工程项目(lysx[2013]06)

摘　　要：以薄壳山核桃和杂交狼尾草种子为材料,研究了薄壳山核桃种子对自身以及种壳浸提液、腐解液对杂交狼尾草萌发和幼苗生长的影响。结果表明,薄壳山核桃种子5 d和7 d浸提液对自身种子萌发达极显著水平;种壳浸提液、腐解液具有明显的化感效应,对杂交狼尾草幼苗生长抑制作用显著,且随处理液浓度增加而增强,但种子萌发对其化感作用不敏感;同时发现,种壳2 d、7 d浸提液和7 d腐解液对杂交狼尾草幼苗抑制作用无显著差异。Effects of pecan seed extract and shell extract and decomposition liquid on seed germination and seedling growth were investigated using seeds of Carya illinoensis‘Elliot＇and Pennisetum Alopecuroides L.× P.americanum L..The results showed that the germination of the pecan seeds were significantly inhibited by the 5 day extract and 7 day extract of the pecan seeds.The shell extract and decomposition liquid demonstrated strongly allelopathic effect on the stem growth of the young seedlings of hybrid penisetum,and the inhibition effect was enhanced with increasing concentration. But the water extract and decomposition liquid of the pecan shell showed no inhibition on seed germination of hybrid penisetum.There was no significant difference in inhibition on seedling growth among the 2 day extract,7 day extract and 7 day decomposition liquid of the pecan shell.

关 键 词：薄壳山核桃 种子 种壳 化感效应 

分 类 号：S664.1[农业科学—果树学]