[1]黄修梅,郝丽珍,张凤兰,等.沙埋和供水对毛乌素沙地沙芥与斧形沙芥出苗的影响[J].北方园艺,2015,39(04):76-80.[doi:10.11937/bfyy.201504018]
　HUANG Xiu-mei,HAO Li-zhen,ZHANG Feng-lan,et al.Effect of Sand Burial and Water Supply on Seedling Emergence of P.cornutum and P.dolabratum in Mu Us Sandy Land[J].Northern Horticulture,2015,39(04):76-80.[doi:10.11937/bfyy.201504018]

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沙埋和供水对毛乌素沙地沙芥与斧形沙芥出苗的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷期数: 2015年04 页码: 76-80 栏目: 出版日期: 2015-02-28

Title:: Effect of Sand Burial and Water Supply on Seedling Emergence of P.cornutum and P.dolabratum in Mu Us Sandy Land

作者:: 黄修梅1; 2; 郝丽珍2; 3; 张凤兰2; 3; 杨忠仁2; 3; （1.内蒙古农业大学职业技术学院，内蒙古呼和浩特 010019；2.内蒙古自治区野生特有蔬菜种质资源与种质创新重点实验室，内蒙古呼和浩特 010019；3.内蒙古农业大学农学院，内蒙古呼和浩特 010019）

Author(s):: HUANG Xiu-mei1; 2; HAO Li-zhen2; 3; ZHANG Feng-lan2; 3; YANG Zhong-ren2; 3; (1.Vocational Technology College，Inner Mongolia Agricultural University，Hohhot，Inner Mongolia 010019；2.Key Laboratory of Wild Peculiar Vegetable Recourse and Germplasm Enhancement，Hohhot，Inner Mongolia 010019；3.Agriculture College，Inner Mongolia Agricultural University，Hohhot，Inner Mongolia 010019)

关键词:: 毛乌素沙地; 沙芥; 斧形沙芥; 沙埋; 供水; 幼苗出土

Keywords:: Mu Us Sandy Land; P.cornutum; P.dolabratum; sand burial; water supply; seedling emergence

DOI:: 10.11937/bfyy.201504018

文献标志码:: A

摘要:: 以中国特有种沙芥和濒危种斧形沙芥为试材，研究了人工控制的6个沙埋深度和4个供水量处理对沙芥与斧形沙芥幼苗出土的影响。结果表明：沙埋不同深度的沙芥、斧形沙芥出苗与供水量密切相关。当供水量为毛乌素沙地6月份平均降雨量的50%（22.5 mm）时，沙埋各深度的果实都不能出苗；当供水量为毛乌素沙地6月份平均降雨量（50 mm）时，浅层的沙芥（1～4 cm）和斧形沙芥（1～2 cm）均能顺利出苗；当供水量为毛乌素沙地7月份平均降雨量（100 mm）时，沙芥沙埋1～4 cm和斧形沙芥沙埋0～6 cm均能出苗；当供水量为毛乌素沙地7月份平均降雨量增加50%（150 mm）时，沙芥1～8 cm和斧形沙芥0～8 cm均能出苗。沙芥出苗速率随供水量的增加而增加，其中供水量为135 mL时出苗最快，沙埋2 cm出苗最快，且随着沙埋深度的增加，出苗时间推迟。斧形沙芥在供水量90 mL出苗较快，出苗时间等于或早于供水量135 mL，1 cm沙埋深度出苗最快。结合毛乌素沙地降雨特点与该试验结果，沙埋1.0～2.0 cm和100 mm以上月平均降雨量是沙芥和斧形沙芥自然条件下出苗较好的重要条件。

Abstract:: Taking P.cornutum a special species in China and P.dolabratum listed an endangered species in 1992 as materials，the effect of water supplying and sand burial on seedling emergence of P.cornutum and P.dolabratum were studied，a set of experiments were conducted under six depths of sand burial and four kinds of continual water supply.The results showed that the buried depth was closely correlated with water supply.When the water supply was 22.5 mm that would be 50% of the average rainfall of Mu Us Sandy Land in June,the seeds couldn’t emerge.When the water supply was 50 mm(the average rainfall in June),the seeds could germinate on the superficial layer of P.cornutum(1—4cm) and P.dolabratum(1-2cm).When the water supply was 100 mm (the average rainfall in July ),a few seeds could emerge well in 1-4cm of P.cornutum and 0-6cm of P.dolabratum.When the water supply was 150 mm (50% of water supply of the average rainfall in July),the seeds could emerge in 1-8cm of P.cornutum and 0-8cm of P.dolabratum.The emergence rate of P.cornutum would be increase with water supply increasing.For P.cornutum, there was the fastest emergence rate in 135 mL in all sand burial，and 2cm in all the buried depth.For P.dolabratum, 90 mL was faster than 135 mL in the water supply of the seedling emergence,and 1cm was the fastest seedling emergence in all sand burial depth.Based on our experiment results and precipitation characteristics of the Mu Us sandy land，there would be the important conditions for P.cornutum and P.dolabratum in 1.0-2.0cm buried depth and 100 mm average rainfall.

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备注/Memo

第一作者简介：黄修梅（1971-），女，博士，讲师，现主要从事沙生蔬菜种质资源与种质创新等研究工作。E-mail：huangxm0404@126.com.责任作者：郝丽珍（1960-），女，博士，教授，研究方向为沙生蔬菜种质资源与种质创新。E-mail：haolizhen_1960@163.com.基金项目：国家自然科学基金资助项目（31160393，31101541，30460080,30260067）；教育部博士点基金资助项目（20111515110006）；内蒙古科技攻关资助项目（20050305，20060202）；内蒙古自然科学基金资助项目（2001108020501，200308020513）。

更新日期/Last Update: 2015-04-17