Reponses of Seed Germination of Four Desert Species to Soil Moisture in West Ordos

ZHANG Ying-juan; WANG Yu-shan

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Reponses of Seed Germination of Four Desert Species to Soil Moisture in West Ordos

- Reponses of Seed Germination of Four Desert Species to Soil Moisture in West Ordos
- Bulletin of Soiland Water Conservation Vol. 29, Issue 6, Pages: 60-63(2010)
- 作者机构：
  
  1. 内蒙古师范大学生命科学与技术学院,内蒙古,呼和浩特,010022
  2. 内蒙古海拉尔第一中学, 内蒙古海拉尔,021000
- 作者简介：
- 基金信息：
- DOI：
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- Published：2010
- 稿件说明：
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ZHANG Ying-juan, WANG Yu-shan. Reponses of Seed Germination of Four Desert Species to Soil Moisture in West Ordos[J]. Bulletin of Soiland Water Conservation, 2010, 29(6): 60-63.
DOI：

ZHANG Ying-juan, WANG Yu-shan. Reponses of Seed Germination of Four Desert Species to Soil Moisture in West Ordos[J]. Bulletin of Soiland Water Conservation, 2010, 29(6): 60-63. DOI：

摘要

研究了不同土壤水分处理对霸王、沙冬青、长叶红砂及蒙古扁桃这4种荒漠植物种子萌发和幼苗生长的影响。结果表明

土壤含水量显著地影响着种子萌发和幼苗生长。霸王种子在6%的土壤含水量下萌发率和萌发指数最高

活力指数和幼苗生物量也最大

幼苗生长良好。沙冬青种子在12%的土壤含水量、长叶红砂和蒙古扁桃种子在16%的土壤含水量下萌发和生长良好。种子萌发策略反映了物种对荒漠水分条件不同的适应机制

并影响种群的更新和扩展。

Abstract

Responses of seed germination of 4 desert vegetation species﹝Zygophyllum xanthoxylum Bunge.

Ammopiptanthus mongolicus(Maxim.)Cheng f.

Reaumuria trigyna Maxim

and Amygealus mongolica Maxim﹞to soil moisture were studied.Results showed that soil moisture had a significant effect on the seed germination and seedling growth.At 6% soil moisture content

germination rate and germination index of Z.xanthoxylum seeds reached peak value

vigor index and seeding biomass were the greatest

and seedlings of Z.xanthoxylum grew well.Germination and growth of A.mongolicus seeds behaved very well at 12% soil moisture content and those of R.trigyna and P.mongolica seeds behaved also well at 16% soil moisture content.The seed germination strategy of the 4 plants reflects different adaptation mechanisms to desert moisture condition and affects population regeneration and expansion.

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