|Table of Contents|

Effects of Half-root Zone Drying on Water Transportation and Stable Isotope of Mature ‘Fuji’Apple Trees(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年22期
Page:
14-17
Research Field:
Publishing date:

Info

Title:
Effects of Half-root Zone Drying on Water Transportation and Stable Isotope of Mature ‘Fuji’Apple Trees
Author(s):
XU Sheng-rong1; LIU Fu-ting2; ZHANG Yong-wang2; ZHANG Lin-sen2; HU Jing-jiang3; HAN Ming-yu2
1.College of Forestry,Northwest Agriculture and Forestry University,Yangling,Shaanxi 712100;
2.College of Horticulture,Northwest Agriculture and Forestry University,Yangling,Shaanxi 712100;
3.College of Life Science,Northwest Agriculture and Forestry University,Yangling,Shaanxi 712100
Keywords:
partial root zone irrigation; stable isotope; ‘Fuji’ apple; hydraulic structure
PACS:
S 661.1
DOI:
-
Abstract:
Taking thirteen-year-old ‘Fuji’ apple tree as material,the effects of whole root zone drying (NI),half-root zone drying(PRD) and conventional irrigation(CI) on the water transportation and stable isotope of apple trees in the field conditons of the Loess Plateau were studied.The results showed that,the leaf and shoot hydraulic conductance had gradually declined as the degree of drought increased,leaf hydraulic conductance of PRD and NI reduced 13.27% and 42.01%,shoot hydraulic conductance of PRD and NI reduced 3.01% and 34.36% compared with that of CI.But compared with CI and NI,leaf area specific leaf hydraulic conductance and leaf area specific shoot hydraulic conductance of PRD were enhanced by 14.33% and 14.44%,41.23% and 16.55% respectively.By deuterium and carbon stable isotopes analysis,the WUE of PRD was higher than that of NI and CI;water deficit increased utilization rate of deep soil moisture for plant,increased the rate of contribution of deep soil moisture to tree body moisture.This showed that PRD treatment can change the water use strategy and improve water use efficiency without influencing the apple tree normal physiological indices in the semiarid areas of Northwest China.

References:

[1]   Dry P R,Loveys B R,During H.Partial drying of the rootzone of grape.II.Changes in the pattern of root development[J].Vitis,2000,39:9-12. 
[2]   Loveys B R,Dry P R,During H.Root signals affect water use efficiency and shoot growth[J].Acta Horticulturae,1997,427:1-14.
[3]   Zhang J,Davies W J,Tardieu F.What information is conveyed by an ABA signal from maize roots in drying field soil?[J].Plant,Cell & Environment,1992,15
       (2):185-191.
[4]   Dawson T E.Hydraulic lift and water use by plants:implications for water balance,performance and plant-plant interactions[J].Oecologia,1993,95:565-574.
[5]   Schachtschneider K,February E C.The relationship between fog,floods,groundwater and tree growth along the lower Kuiseb River in the hyperarid 
       Namib[J].Journal of Arid Environments,2010,74(12):1632-1637.
[6]   McCole A A,Libby A.Stern.Seasonal water use patterns of Juniperus ashei on the Edwards Plateau,Texas,based on stable isotopes in water[J].Journal of 
      Hydrology,2007,342(3-4):238-248.
[7]   梁宗锁,康绍忠,高俊凤.植物对土壤干旱信号的感知、传递及其水分利用的控制[J].干旱地区农业研究,1999,17(2):72-78.
[8]   Kudoyarova1 G R,Vysotskaya1 L B,Cherkozyanova1 A,et al.Effect of partial rootzone drying on the concentration of zeatin-type cytokinins in tomato 
       (Solanum lycopersicum L.) xylem sap and leaves[J].Journal of Experimental Botany,2006,58(2):161-168.
[9]   Marshall J D,Zhang J W.Carbon isotope discrimination and water-use efficiency in native plants of the North-central Rockies[J].Ecology,1994,75:1887-
       1895.
[10] Warren C R,Mcgrath J F,Adams M A.Water availability and carbon isotope discrimination in conifers[J].Oecologia,2001,127:476-486.
[11] Golluscio R A,Oesterheld M.Water use efficiency of twenty-five co-existing Patagonian species growing under different soil water availability
       [J].Oecologia,2007,154:207-217.
[12] Saur M,Sigenthaler U.The climate-carbon isotope relationship in tree rings and the significance of site conditions[J].Plant Phsiol,1995,40:320-330. 
[13] 韩兴国,严昌荣,陈灵芝.暖温带地区几种木本植物碳稳定同位素的特点[J].应用生态学报,2000,11(4):497-500.
[14] White J W C,Cook E R,Lawrence J R,et al.The D/H ratios of sap in trees:implications for water sources and tree ring D/H ratios[J].Geochimica Et 
       Cosmochimica Acta,1985,49(1):237-246.
[15] Dawson T E.Hydraulic lift and water use by plants:implications for water balance,performance and plant-plant interactions[J].Oecologia,1993,95:565-574.

Memo

Memo:
-
Last Update: 2014-08-06