Effects of irrigation frequency under limited irrigation on root water uptake, yield and water use efficiency of winter wheat

2009 ◽  
Vol 58 (4) ◽  
pp. 393-405 ◽  
Author(s):  
Liwei Shao ◽  
Xiying Zhang ◽  
Suying Chen ◽  
Hongyong Sun ◽  
Zhenhua Wang
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Uptake ◽  
Root Water Uptake ◽  
Irrigation Frequency ◽  
Use Efficiency

scholarly journals Estimating the Root Water Uptake of Surface-Irrigated Apples Using Water Stable Isotopes and the Hydrus-1D Model

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1624 ◽  
Author(s):  
Lijian Zheng ◽  
Juanjuan Ma ◽  
Xihuan Sun ◽  
Xianghong Guo ◽  
Qiyun Cheng ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Uptake ◽  
Root Water Uptake ◽  
Surface Irrigation ◽  
Apple Trees ◽  
1D Model ◽  
Use Efficiency ◽  
Hydrus 1D

The future production of irrigated fruit orchards in the Loess Plateau of China is threatened by a shortage of freshwater. To improve water use efficiency under conditions where irrigation is limited, it is necessary to quantify the root water uptake (RWU) of apple trees. The RWU of apple trees was estimated under surface irrigation using water stable isotope technology and the Hydrus-1D model. Using the Romero-Saltos and IsoSource models, the stable isotopes of water in stems, different soil depths, and different precipitation were analyzed in a 5-year-old dwarfing apple orchard during two seasons 2016 and 2017. Hydrus-1D model was able to simulate the RWU of apple using the maximum coefficient of determination (0.9), providing a root mean square error of 0.019 cm3 cm−3 and a relative error of 2.25%. The results showed that the main depth of RWU ranged from 0–60 cm during the growth season, with the main contribution occurring in the 0–40 cm depth. These findings indicated that reducing the traditional surface irrigation depth will be important for improving the irrigation water use efficiency.

scholarly journals Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

PLoS ONE ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. e0154673 ◽  
Author(s):  
Chengyue Bian ◽  
Changjian Ma ◽  
Xinhui Liu ◽  
Chao Gao ◽  
Quanru Liu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Wheat Yield ◽  
Irrigation Frequency ◽  
Planting Pattern ◽  
Winter Wheat Yield ◽  
Use Efficiency

scholarly journals Seasonal variability in evapotranspiration partitioning and its relationship with crop development and water use efficiency of winter wheat

2018 ◽  
Author(s):  
Ying Ma ◽  
Praveen Kumar ◽  
Xianfang Song
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Seasonal Variability ◽  
Management Practices ◽  
Crop Productivity ◽  
Root Water Uptake ◽  
Individual Growth ◽  
Area Index ◽  
Use Efficiency

Abstract. The partitioning of evapotranspiration (ET) into soil evaporation (E) and crop transpiration (T) is fundamental for accurately monitoring agro-hydrological processes, assessing crop productivity, and optimizing water management practices. In this study, the isotope tracing technique was used to partition ET and quantify the root water uptake sources of winter wheat during the 2014 and 2015 growing seasons in Beijing, China. The correlations between seasonal ET partitioning and the leaf area index (LAI), grain yield, and water use efficiency (WUE) were investigated. The fraction of T in ET (FT) between the greening and harvest seasons was 0.82 on average and did not vary significantly among the different irrigation and fertilization treatments (p > 0.05). However, the values of FT during the individual growth periods were remarkably distinct (ranging from 0.51 to 0.98) among the treatments. The seasonal variability in FT could be effectively explained via a power-law function of the LAI (FT = 0.61 LAI0.21, R2 = 0.66, p  0.05). The total T during the jointing–heading and heading–filling periods (Tjf) had significantly quadratic relationships with the crop yield and WUE (p 

Dynamics of root water uptake and water use efficiency under alternate partial root-zone irrigation

2013 ◽  
Vol 52 (13-15) ◽  
pp. 2805-2810 ◽  
Author(s):  
C.X. Li ◽  
X.G. Zhou ◽  
J.S. Sun ◽  
H.Z. Wang ◽  
Y Gao
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Uptake ◽  
Root Zone ◽  
Root Water Uptake ◽  
Use Efficiency

scholarly journals Effects of Wheat streak mosaic virus on Root Development and Water-Use Efficiency of Hard Red Winter Wheat

Plant Disease ◽  
2010 ◽  
Vol 94 (6) ◽  
pp. 766-770 ◽  
Author(s):  
J. A. Price ◽  
F. Workneh ◽  
S. R. Evett ◽  
D. C. Jones ◽  
J. Arthur ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Mosaic Virus ◽  
Water Use ◽  
Root Development ◽  
Field Studies ◽  
Wheat Streak Mosaic Virus ◽  
Hard Red Winter Wheat ◽  
Use Efficiency ◽  
Red Winter Wheat

Greenhouse and field studies were conducted to determine the effects of Wheat streak mosaic virus (WSMV), a member of the family Potyviridae, on root development and water-use efficiency (WUE) of two hard red winter wheat (Triticum aestivum) cultivars, one susceptible and one resistant to WSMV. In the greenhouse studies, wheat cultivars were grown under three water regimes of 30, 60, and 80% soil saturation capacity. After inoculation with WSMV, plants were grown for approximately 4 weeks and then harvested. Root and shoot weights were measured to determine the effect of the disease on biomass. In all water treatments, root biomass and WUE of inoculated susceptible plants were significantly less (P < 0.05) than those of the noninoculated control plants. However, in the resistant cultivar, significance was only found in the 30 and 60% treatments for root weight and WUE, respectively. Field studies were also conducted under three water regimes based on reference evapotranspiration rates. Significant reductions in forage, grain yield, and crop WUE were observed in the inoculated susceptible plots compared with the noninoculated plots. Both studies demonstrated that wheat streak mosaic reduces WUE, which is a major concern in the Texas Panhandle because of limited availability of water.

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