干旱区生态环境知识资源中心(Arid): 水分胁迫对3种扁桃的生长与耗水特征的影响

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	水分胁迫对3种扁桃的生长与耗水特征的影响
其他题名	Effects of Water Stress on the Growth and Water Consumption Characteristics of Three Amygdalus Species
	曾继娟; 朱强
来源期刊	西北林学院学报
ISSN	1001-7461
出版年	2018
卷号	33 期号:4 页码:145-152
中文摘要	为探索不同水分胁迫下3种扁桃的耗水规律与生长特征,以蒙古扁桃、长柄扁桃、四川扁桃的1年生播种苗为试验材料,通过室外盆栽,设置适宜水分、轻度、中度和重度干旱4个水分条件,分别为田间持水量的75%~80%(CK)、60%~65%(T1)、45%~50%(T2)和30%~35%(T3)。结果表明:1)随着土壤水分的胁迫,3种扁桃的株高和地径均受到明显抑制,蒙古扁桃和四川扁桃均表现为CK>T1>T2>T3,而长柄扁桃则为T1>CK>T2>T3。2)3种扁桃的耗水量随着土壤含水量的降低而减少,表现出CK>T1>T2>T3的变化规律。3)相同水分条件下,四川扁桃的日耗水量最多,耗水高峰持续时间较长,蒙古扁桃的日耗水量最低,长柄扁桃的日耗水量介于两者之间。4)不同水分条件下,3种扁桃的单株水分利用效率排序分别为四川扁桃:T1>T2>T3>CK,适宜在轻度干旱下生长;蒙古扁桃:T3>T2>CK>T1,能够在重度干旱下生长;长柄扁桃:T2>T1 >T3>CK,适宜在中度干旱下生长。表明3种扁桃均有很强的抗旱性,且蒙古扁桃最抗旱,为灌木树种在宁夏干旱区的生态造林及推广应用提供理论依据。
英文摘要	In order to examine water consumption and growth characteristics of three Amygdalusspecies under drought stress,annual seedlings of A.mongolica,A.pedunculata,and A.tangutica were potted outdoors. Four soil moisture conditions were set up:sufficient water,mild drought,moderate drought and severe drought,which accounted for the field capacities of 75%-80% (control),60%-65% (T1),45%- 50% (T2)and 30%-35% (T3).The results showed that 1)with the increase of drought stress,the height and ground diameter growths of all three species were obviously inhibited,for A.mongolicaand A. tangutica,the growths were in the order of control>T1>T2>T3,for A.pedunculata,it was T1>control >T2>T3.2)The water consumption decreased with the stress:control>T1>T2>T3.3)Under the same moisture condition,daily water consumption of A.tangutica was the highest and water consumption peak duration was longest,the water consumption of A.mongolica was the lowest,the water consumption of A. pedunculata was between the two species.4)Under different soil moisture conditions,water use efficiency of the three species performed as A.tangutica.T1>T2>T3>control,it was suitable for growing under mild drought condition.A.mongolica,T3>T2>control>T1,it was able to grow under severe drought condition.A.pedunculata,T2>T1>T3>control,it was suitable for growing in moderate drought condiion.In summary,three species of Amygdalus had a strong drought resist的ance,and A.mongolicas drought resistance was the best.The results could provide the theoretical basis for ecological afforestation and popularization of shrub species in arid area of Ningxia.
中文关键词	土壤含水量 ; 蒙古扁桃 ; 耗水量 ; 水分利用效率
英文关键词	soil moisture content Amygdalus mongolica water consumption water usef efficiency
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:6280501
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238459
作者单位	宁夏林业研究院股份有限公司, 种苗生物工程国家重点实验室, 银川, 宁夏 750004, 中国
推荐引用方式 GB/T 7714	曾继娟,朱强. 水分胁迫对3种扁桃的生长与耗水特征的影响[J],2018,33(4):145-152.
APA	曾继娟,&朱强.(2018).水分胁迫对3种扁桃的生长与耗水特征的影响.西北林学院学报,33(4),145-152.
MLA	曾继娟,et al."水分胁迫对3种扁桃的生长与耗水特征的影响".西北林学院学报 33.4(2018):145-152.