Water-use efficiency and physiological responses of maize under partial root-zone irrigation

Li, Fusheng; CaiHui, Wei; Zhang, Fucang; Zhang, Jianhua; Nong, Mengling; Kang, Shaozhong

doi:10.1016/j.agwat.2010.01.024

Cited by 56 publications

(24 citation statements)

References 28 publications

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“…However, M treatment had lower MDA content under WS, achieved by regulating the activities of SOD and POD. The changes in activities of SOD and POD in M treatment were beneficial towards increasing drought resistance and maintaining high P n under WS, which is consistent with the findings of previous studies [16,24,26,57–59]. …”

Section: Discussionsupporting

confidence: 91%

Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization

Wang

Chen

et al. 2017

PLoS ONE

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Improving the efficiency of resource utilization has received increasing research attention in recent years. In this study, we explored the potential physiological mechanisms underlying improved grain yield and water-use efficiency of winter wheat (Triticum aestivum L.) following organic fertilizer application. Two wheat cultivars, ChangHan58 (CH58) and XiNong9871 (XN9871), were grown under the same nitrogen (N) fertilizer rate (urea-N, CK; and manure plus urea-N, M) and under two watering regimes (WW, well-watered; and WS, water stress) imposed after anthesis. The M fertilizer treatment had a higher Pn and lower gs and Tr than CK under both water conditions, in particular, it significantly increased WRC and Ψw, and decreased EWLR and MDA under WS. Also, the M treatment increased post-anthesis N uptake by 81.4 and 16.4% under WS and WW, thus increasing post-anthesis photosynthetic capacity and delaying leaf senescence. Consequently, the M treatment increased post-anthesis DM accumulation under WS and WW by 51.5 and 29.6%, WUEB by 44.5 and 50.9%, grain number per plant by 11.5 and 12.2% and 1000-grain weight by 7.3 and 3.6%, respectively, compared with CK. The grain yield under M treatment increased by 23 and 15%, and water use efficiency (WUEg) by 25 and 23%, respectively. The increased WUE under organic fertilizer treatment was due to elevated photosynthesis and decreased Tr and gs. Our results suggest that the organic fertilizer treatment enabled plants to use water more efficiently under drought stress.

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Section: Discussionsupporting

confidence: 91%

Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization

Wang

Chen

et al. 2017

PLoS ONE

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“…However, the F planting pattern only retained the lower soil layer SWC at 180 mm of irrigation. An upward hydraulic gradient and an upward capillary flux could occur in the deeper soil layers of the root zone (Bandyopadhyay et al, 2005;Li et al, 2010a). The soil profile water status greatly affects the density and depth of root penetration and often restricts the full utilization of available soil water (Angadi and Entz, 2002;Zuo et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Planting Pattern and Irrigation Effects on Water‐Use Efficiency of Winter Wheat

et al. 2014

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The world food demand is expected to double by 2050 and the availability and quality of irrigation water is declining because of the needs of the expanding population combined with the effects of climatic change. Therefore, productivity and water‐use efficiency (WUE) are crucial issues in the production of winter wheat (Triticum aestivum L.). The objective of this field study was to compare and evaluate the soil water characteristic, evapotranspiration (ET), yield, and yield components to identify possible ways to improve WUE of winter wheat in the North China Plain. The field experiment in a randomized complete block design with four replicates was conducted during 2008 to 2009 and 2009 to 2010. There were three planting patterns: traditional flat seedbed with uniform row spacing of 25 cm, wide–narrow row spacing of 40‐cm and 20‐cm flat seedbed and furrow‐ridge seedbed; three irrigation treatments: 90, 135, and 180 mm. The results showed that planting pattern and irrigation had significant effect on ET, yield components, grain yield, and WUE (P < 0.05); however, interaction between planting pattern and irrigation only had a significant effect on yield (P < 0.01). Compared with the conventional flat uniform planting pattern, the new treatment of furrow‐ridge seedbed planting pattern increased WUE by 13.7%, increased grain yield by 9.7%, reduced ET by 3.4%, increased soil water content (SWC) by 7.7%, increased soil water storage (SWS) by 6.8%, and increased yield components (grains per spike 15.0%, thousand‐grain weight [TGW] by 3.2%). Irrigation increased upper SWC, SWS, and ET, but decreased WUE. Compared with 90‐mm irrigation treatment, 135‐mm irrigation treatment increased grain yield by 6.4%. The findings suggest that application of the furrow‐ridge seedbed planting pattern combined with 135‐mm irrigation may be an effective strategy to improve winter wheat production in water‐scarce regions.

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“…Water and nitrogen are essential resources for crop production, and their availability predominantly effects crop yield and quality. Crop nitrogen nutrition under the PRD irrigation technique has been tested in some crops such as maize (Kirda et al, 2005;Hu et al, 2006Hu et al, , 2009Li et al, 2007;Wang et al, 2012), potato (Shahnazari et al, 2008;Wang et al, 2009;Jovanovic et al, 2010;Li et al, 2010), tomato (Wang et al, 2013), and winter wheat (Sepaskhah and Hosseini, 2008). According to Wang et al (2009), PRD irrigation may increase not only WUE but also nitrogen use efficiency (NUE).…”

Section: Introductionmentioning

confidence: 99%

Performance of partial root-zone drip irrigation for sugar beet production in a semi-arid area

Topak

Acar

Uyanöz

et al. 2016

Agricultural Water Management

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Water-use efficiency and physiological responses of maize under partial root-zone irrigation

Cited by 56 publications

References 28 publications

Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization

Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization

Planting Pattern and Irrigation Effects on Water‐Use Efficiency of Winter Wheat

Performance of partial root-zone drip irrigation for sugar beet production in a semi-arid area

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