干旱区生态环境知识资源中心(Arid): 干旱胁迫下梨枣抗旱性研究

Arid

	干旱胁迫下梨枣抗旱性研究
其他题名	Drought resistance of pear jujube under drought stress
	孙波 1; 汪有科 1; 周玉红 2
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2014
卷号	32 期号:4 页码:37-42
中文摘要	为探索陕北黄土丘陵区梨枣的抗旱性与耐旱能力,以大规格盆栽梨枣(Ziziphus jujuba Mill. cv. Lizao)2年生苗木为试验材料,在连续不供水情况下研究了梨枣的萎蔫到致死过程。依据干旱缺水后枣树生长衰退过程中的特征将枣树萎蔫致死分为:暂时萎蔫、初始萎蔫、表征永久萎蔫及耐旱致死四个阶段。结果表明:梨枣的初始萎蔫系数在2.017%?3.054%之间,平均为2.494%;表征永久萎蔫系数在1.199% ~ 1.998%之间,平均为1.489%,永久萎蔫系数在1.250%?1.489%之间;耐旱致死点为1.250%,致死时间为13511 d。试验结果证明枣树是一种十分抗旱的树种,在半干旱黄土丘陵区枣树不会出现干旱致死。
英文摘要	In order to explore the drought - resistant ability of pear jujube (Ziziphus jujuba Mill. cv. Lizao) in Loess Plateau region of northern Shaanxi, a pot experiment was conducted with 2-year old seedlings as the material, and its process from wilting to death was investigated under continuously unirrigated condition. The degenarative process of pear jujube under unirrigated condition was classified into four periods: temporary wilting, initial wilting, apparent permanent wilting and drought caused death. The results showed that the initial wilting coefficient of pear jujube was between 2.017% and 3.054% with an average of 2.494% ; the apparent permanent wilting coefficient was between 1.199% and 1.998% with an average of 1.489%; the permanent wilting coefficient was between 1.250% and 1.489% ; the drought lethal point was 1.250% and the lethal time was 135 11 days. It was concluded that pear jujube was a kind of drought-resistant fruit tree, and it could not become dead of drought in semi-arid loess hilly regions.
中文关键词	干旱胁迫 ; 梨枣 ; 黄土高原 ; 萎蔫系数 ; 耐旱致死点
英文关键词	drought stress pear jujube Loess Plateau wilting coefficient drought lethal point
语种	中文
国家	中国
收录类别	CSCD
WOS类目	HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:5191692
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231081
作者单位	1.中国科学院教育部水土保持与生态环境研究中心, 杨凌, 陕西 712100, 中国; 2.西北农林科技大学, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	孙波,汪有科,周玉红. 干旱胁迫下梨枣抗旱性研究[J]. 西北农林科技大学,2014,32(4):37-42.
APA	孙波,汪有科,&周玉红.(2014).干旱胁迫下梨枣抗旱性研究.干旱地区农业研究,32(4),37-42.
MLA	孙波,et al."干旱胁迫下梨枣抗旱性研究".干旱地区农业研究 32.4(2014):37-42.