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	桃树需水信号及产量和果实品质对水分的响应研究
其他题名	Response of Water Demand Signal, Yield and Fruit Quality of Peach Tree to Soil Moisture
	周罕觅 1; 张富仓 1; 李志军 1; 龚道枝 2; 吴立峰 1
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2014
卷号	45 期号:12 页码:171-180
中文摘要	于2010和2011年桃树连续生长季,在移动式遮雨棚下进行4a生桃树小区灌溉试验,研究了桃树需水信号(液流速率、净光合速率P_n、蒸腾速率T_r和气孔导度G_s)及产量和果实品质对不同灌水量(I_1: 100%ET_c、I_2: 75%ET_c、I_3: 50%ET_c、I_4: 25%ET_c,ET_c是作物蒸发蒸腾量)的响应规律。2a试验结果表明:与I_1相比,I_2不会明显降低桃树液流速率、P_n和产量并可获得较高的水分利用效率(WUE),2a分别平均提高6.2%、7.7%,而I_3和I_4虽然有较低的T_r和较高的WUE,但其P_n和产量显著下降,分别降低9.2%、21.4%和16.9%、42.5%。不同灌水量对口感风味、维生素C、糖酸比、单果质量和产量产生了极显著的影响(P<0.01),其中I_2较I_1 2a分别提高了2.2%、4.5%、24.4%、28.8%、-2.3%和5.9%、3.2%、26.5%、9.3%、0.4%。不同灌水量对果实个数、着色度、硬度和可滴定酸产生了显著的影响(P<0.05),其中I_2较I_12a分别提高了-24.1%、85.7%、22.1%、12.1%和-8.1%、40%、28.8%、-2.7%。不同灌水量对果实含水率影响不大,亏缺灌溉(I_2、I_3、I_4)均提高了果实品质。由此可见,75%ET_c亏缺灌溉是桃树在产量、水分利用效率和果实品质上最好的灌溉量。
英文摘要	In order to understand the effects of irrigation amount on fruit quality and yield and to investigate the efficient mode of water supply of peach tree in semi-arid area field, two-year experiments were conducted to study the response of water demand signal (sap flow velocity, net photosynthetic rate P_n, transpiration rate T_r, stomatal conductance G_s), yield and fruit quality of four years peach tree to the different irrigation amount treatments (I_1:100%ET_c, I_2:75%ET_c, I_3:50%ET_c, I_4:25%ET_c, ET_c is crop evapotranspiration) under mobile rain shelter in two consecutive seasons (2010-2011). The two-year results showed that the number of fruit per hectare were both performance for I_1>I_2>I_3>I_4 and the yield per hectare are both characterized by I_1I_2>I_3>I_4. Compared with I_1, I_2 didn’t have lower sap flow velocity and had higher water use efficiency (WUE) which was improved by 6.2% and 7.7% without reduction on the P_n and yield significantly, while I_3 and I_4 reduced yield by 9.2%, 21.4% and 16.9%, 42.5% respectively in 2010 and 2011, even if it had the low transpiration rate and high WUE. Meanwhile, irrigation had extremely significant effects (P<0.01) on peach mouthfeel, vitamin C, sugar/acid, single fruit weight and yield so that I_2 was improved by 2.2%, 4.5%, 24.4%, 28.8%, -2.3% and 5.9%, 3.2%, 26.5%, 9.3%, 0.4% respectively compared with I_1, and significant effects (P<0.05) on fruit number, color, firmness and titratable acid so that I_2 was improved by -24.1%, 85.7%, 22.1%, 12.1% and -8.1%, 40%, 28.8%, -2.7% respectively compared with I_1. It had little impact on fruit moisture content and deficit irrigation (I_2, I_3 and I_4) all improved the fruit quality of peach. The research also showed that there were high correlative relationships between peach yield, net photosynthetic rate and soil water content in two-year experiments. Under the condition of experiment, the highest yield, higher water benefit and better fruit quality of peach tree can be obtained with irrigation of 75%ET_c.
中文关键词	桃树 ; 液流 ; 品质 ; 产量 ; 净光合速率
英文关键词	Peach tree Sap flow velocity Quality Yield Net photosynthetic rate
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING ; HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:5299963
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/2XILL650/231515
作者单位	1.西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国; 2.中国农业科学院, 农业部旱作节水农业重点实验室, 北京 100081, 中国
推荐引用方式 GB/T 7714	周罕觅,张富仓,李志军,等. 桃树需水信号及产量和果实品质对水分的响应研究[J]. 西北农林科技大学,2014,45(12):171-180.
APA	周罕觅,张富仓,李志军,龚道枝,&吴立峰.(2014).桃树需水信号及产量和果实品质对水分的响应研究.农业机械学报,45(12),171-180.
MLA	周罕觅,et al."桃树需水信号及产量和果实品质对水分的响应研究".农业机械学报 45.12(2014):171-180.