|Table of Contents|

Effects of Alkali Stress on Seed Germination and Seedling Growth of Five Ecological Grasses

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年2
Page:
55-61
Research Field:
Publishing date:

Info

Title:
Effects of Alkali Stress on Seed Germination and Seedling Growth of Five Ecological Grasses
Author(s):
HE Miaohua1; LIU Qingqing1; MA Yuan1; 2; SHI Jianjun1; 2; XING Yunfei1; ZHANG Hairong1
(1.Qinghai Academy of Animal Husbandry and Veterinary Sciences，Qinghai University，Qinghai,Xining 810016；2.Key Laboratory of Alpine Grassland Ecology，Ministry of Education in Sanjiangyuan District，Xining，Qinghai 810016)
Keywords:
pH; ecological grass species; germination characteristics; Topsis method
PACS:
S 812.6
DOI:
10.11937/bfyy.20232639
Abstract:
Five kinds of ecological grass species of Poa pratensis，Deschampsia caespitosa，Puccinellia tenuiflora cv.Qinghai,Gentian macrophylla and Rumex acetosa were used as test materials，and the seed germination was tested in the light constant temperature and humidity incubator.The germination characteristics of pH treated with different gradients (7.0,7.5,8.0,8.5,9.0 and 9.5) were studied，in order to provide reference for the ecological restoration of the alkaline muck area in the alpine mining area.The results showed that with the increase of pH，the germination indexes of Poa pratensis and Gentian macrophylla decreased，whereas Deschampsia caespitosa,Puccinellia tenuiflora cv.Qinghai and Rumex acetosa increased first and then decreased.The ranking of germination quality of 5 seeds under different pH by Topsis method showed that and Poa pratensis and Gentian macrophylla had better germination under low alkalinity(pH 7.0)，Deschampsia caespitosa, and Puccinellia tenuiflora cv.Qinghai had better germination quality in moderate alkali(pH8.5)，and Rumex acetosa under high alkalinity (pH9).

References:

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Last Update: 2024-02-08