Xinjiang Agricultural Sciences ›› 2025, Vol. 62 ›› Issue (1): 193-201.DOI: 10.6048/j.issn.1001-4330.2025.01.022

• Plant Protection·Horticultural Special Local Products • Previous Articles     Next Articles

Study of the allelopathic effects of apple and pear root extracts on the seed germination and seedling growth of Ostericum aquaticum

FENG Mei(), CAO Yajun, XIAO Lijuan(), WANG Huaqiang, ZHANG Feng, CHEN Gang, HUANG Peng, WANG Yongming, Diliyaer Kaisaier   

  1. Xinjiang Production and Construction Corps First Division Agricultural Science Resarch Institute Institute of Agricultural Sciences of the 1st Division of XPCC,Aral Xinjiang 843300, China
  • Received:2024-07-30 Online:2025-01-20 Published:2025-03-11
  • Correspondence author: XIAO Lijuan
  • Supported by:
    Science and Technology Innovation Talent Program Project XPCC(2023CB018)

苹果树和梨树根浸提液对水防风药材种子萌发及幼苗生长的化感效应

冯梅(), 曹亚军, 肖莉娟(), 王华强, 张枫, 陈刚, 黄鹏, 王永明, 迪力亚尔·凯赛尔   

  1. 新疆生产建设兵团第一师农业科学研究所,新疆阿拉尔 843300
  • 通讯作者: 肖莉娟
  • 作者简介:冯梅(1987-),女,四川蓬溪人,助理研究员,硕士,研究方向为果树育种及栽培,(E-mail)528186822@qq.com
  • 基金资助:
    新疆生产建设兵团科技创新人才计划项目(2023CB018)

Abstract:

【Objective】 To clarify the allelopathic effects of apple and pear root extracts on the seed germination and seedling growth of Ostericum aquaticum, and to provide a theoretical basis for the agroforestry intercropping system. 【Methods】 The effects of different concentrations of aqueous extracts from apple and pear roots on the seed germination, seedling growth, and fresh weight of the receptor plant were studied using the petri dish paper method. The nutrition pot seedling method was used to study the effects of different concentrations of aqueous extracts from apple and pear roots on the physiological indicators of the receptor plant. 【Results】 (1) The apple root extract exhibited a significant allelopathic effect on the growth and physiological metabolism of Ostericum aquaticum seeds. With the increase of extract concentration, the germination rate, fresh weight, and seedling growth of Ostericum aquaticum initially increased and then decreased. There were also significant differences in biochemical indicators such as soluble protein, soluble sugar, proline, superoxide dismutase, and peroxidase in the seedlings under different concentrations of apple root extract. (2) The pear root extract had a significant allelopathic effect on the growth and physiological metabolism of Ostericum aquaticum. Similar to the apple root extract, with the increasing concentration of pear root extract, the germination rate, fresh weight, and seedling growth of Ostericum aquaticum showed an initial increase followed by a decrease. There were also significant differences in the physiological indicators of the seedlings under different concentrations of pear root extract. (3) By taking the average of the allelopathic effect index RI for each indicator for a comprehensive evaluation, it was concluded that both apple and pear root extracts inhibited the growth of Ostericum aquaticum, with the absolute value RI (pear) > RI (apple). 【Conclusion】 Because apple has little inhibition on the growth of Ostericum aquaticum, interplanting with apple can be considered when interplanting.

Key words: apple; pear; aqueous extract; Ostericum aquaticum; allelopathic effect

摘要:

【目的】 研究苹果树和梨树根(以下简称苹果根和梨根)浸提液对水防风药材种子萌发及幼苗生长的化感效应,为林药复合种植模式提供理论依据。【方法】 利用培养皿滤纸法分析苹果和梨根不同浓度水浸提液对受体植物种子的萌发、幼苗生长及幼苗鲜重的影响;采用营养钵育苗法,研究苹果根、梨根不同浓度水浸提液对受体植物生理指标的影响。【结果】 (1)苹果根浸提液对水防风种子生长和生理代谢具有明显的化感作用,随着浸提液浓度的增加,水防风种子的发芽率、鲜重和幼苗生长呈现出先增加后下降的趋势。不同浓度的苹果根浸提液对水防风幼苗的可溶性蛋白、可溶性糖、脯氨酸、超氧化物歧化酶和过氧化物酶等生化指标亦存在显著差异。(2)梨根浸提液对水防风生长和生理代谢具有明显的化感作用,随着浸提液浓度的增加,水防风种子的发芽率、鲜重和幼苗生长呈现出先增加后下降的趋势。不同浓度的梨根浸提液对水防风幼苗的生理指标亦存在显著差异。(3)对各指标化感效应指数RI取平均值进行综合评价,苹果树和梨根浸提液对水防风生长均起抑制作用,且绝对值RI(梨)>RI(苹果)。【结论】 由于苹果对水防风生长抑制较小,因此在间套种时,可选择与苹果进行间套种。

关键词: 苹果, 梨, 水浸提液, 水防风, 化感效应

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