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	不同灌水下限对枣树光合特性、产量及品质的影响
其他题名	The Impact of the Critical Soil Moisture Used for Scheduling Deficit Drip Irrigation on Photosynthesis, Yield and Quality of Jujube Tree
	马军勇 1; 郑国玉 1; 周建伟 1; 柳智鹏 2
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2020
卷号	39 期号:1 页码:31-36
中文摘要	【目的】探究滴灌条件下适合沙漠绿洲区枣树生长发育的灌水下限。【方法】采用大田试验,设置4种不同灌水下限T1、T2、T3和T4(分别为田间持水率的40%、55%、70%和85%),分析其对枣树不同生育阶段的光合特性、产量及品质的影响。【结果】灌水下限的降低使得净光合速率、蒸腾速率、气孔导度降低,但是会提高枣树的叶片水分利用效率。总体来说,T3处理的净光合速率值最高,且T2处理的叶片水分利用效率在枣树各生育阶段均较高。随着灌水下限的降低,提高了果实的总糖、可溶性固形物、糖酸比等品质指标;当灌水下限为田间持水率的55%时,枣树的单果质量和产量相对较高,分别为4.43 g和6 832.9 kg/hm~2。【结论】综合考虑枣树的光合特性、产量及品质,建议灌水下限设置为田间持水率的55%,枣树的叶片水分利用效率显著提高,同时获得较好的红枣产量和品质。
英文摘要	【Objective】Deficit irrigation is a water-efficient irrigation method in arid and semi-arid region to improve water use efficiency, but how to determine the optimal deficiency in scheduling the irrigation remains elusive. The purpose of this paper is to examine the effect of the critical soil moisture - a soil water content to resume irrigation whenever measured soil moisture drops below it - on growth of jujube tree in a desert oasis. 【Method】 Field experiment was conducted in Xinjiang, in which we compared four critical soil moistures: 40% (T1), 55% (T2), 70% (T3) and 85% (T4) of the field capacity. In each treatment, we measured photosynthesis, yield and fruit quality of the jujube at different growth stages. 【Result】Decreasing the critical soil moisture reduced net photosynthetic rate, transpiration rate and stomatal conductance, but enhanced leaf water use efficiency. Among all treatments, T3 gave the highest net photosynthetic rate and T2 was most efficient in leaf water use at all growth stages. Increasing the critical soil moisture improved fruit quality indexes such as total sugar, soluble solids and sugar-acid ratio. Single fruit weight and yield both peaked when the critical soil moisture was set at 55% of the field capacity, reaching 4.43 g and 6 832.9 kg/hm~2 respectively.【Conclusion】In terms of photosynthetic rate, yield and fruit quality, setting the critical soil moisture at 55% of the field capacity can significantly improve leaf water use efficiency, yield and fruit quality of the jujube.
中文关键词	净光合速率 ; 气孔导度 ; 蒸腾速率 ; 糖酸比 ; 田间持水率
英文关键词	Net photosynthetic rate stomatal conductance transpiration rate sugar-acid ratio field capacity
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6671826
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318400
作者单位	1.新疆农垦科学院农田水利与土壤肥料研究所;;农业部作物高效用水石河子科学观测实验站, ;;农业部作物高效用水石河子科学观测实验站, 石河子;;石河子, 新疆;;新疆 832000;;832000, 中国; 2.河海大学农业工程学院, 南京, 江苏 210098, 中国
推荐引用方式 GB/T 7714	马军勇,郑国玉,周建伟,等. 不同灌水下限对枣树光合特性、产量及品质的影响[J],2020,39(1):31-36.
APA	马军勇,郑国玉,周建伟,&柳智鹏.(2020).不同灌水下限对枣树光合特性、产量及品质的影响.灌溉排水学报,39(1),31-36.
MLA	马军勇,et al."不同灌水下限对枣树光合特性、产量及品质的影响".灌溉排水学报 39.1(2020):31-36.