Alternate wetting and drying irrigation for rice in Bangladesh: Is it sustainable and has plant breeding something to offer?

Price, Adam H.; Norton, Gareth J.; Salt, David E.; Ebenhöh, Oliver; Meharg, Andrew A.; Meharg, Caroline; Islam, Md. Rafiqul; Sarma, Ramen N.; Dasgupta, Tapash; Ismail, Abdelbagi M.; McNally, Kenneth L.; Zhang, Hao; Dodd, Ian C.; Davies, W. J.

doi:10.1002/fes3.29

Cited by 86 publications

(52 citation statements)

References 60 publications

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“…Growing rice under water saving systems such as alternate wetting and drying (AWD) and aerobic rice (AR) may decrease grain quality owing to quick moisture loss and resultant water stress (Dingkuhn and Gal, 1996;Zhang et al, 2008). However, growing rice under AWD and AR is inevitable in the wake of worldwide water shortages (Rejesus et al, 2011;Nie et al, 2012;Price et al, 2013;Ye et al, 2013). Nevertheless, the quick moisture loss from the rice fields sown by AR and AWD methods can be avoided applying mulches .…”

Section: Discussionmentioning

confidence: 99%

Mulching Improves Crop Growth, Grain Length, Head Rice and Milling Recovery of Basmati Rice Grown in Water-saving Production Systems

Jabran¹,

Ullah²,

Akbar³

2015

IJAB

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To cite this paper: Jabran, K., E. Ullah and N. Akbar, 2015. Mulching improves crop growth, grain length, head rice and milling recovery of basmati rice grown in water-saving production systems. AbstractWater saving rice cultivation is indispensable in the wake of severe water shortage. Application of mulches can increase the water retention in water-saving rice; however, the effect of mulches on the growth and quality of rice are desired to be investigated. Hence, two years studies were conducted to evaluate the effect of plastic and straw mulch on crop growth, grain quality and recovery of fine rice. Water saving rice was grown under aerobic (AR) and alternate wetting and drying (AWD) conditions with application of plastic and straw mulch (5 t ha -1). Plots without mulch were maintained in both the water saving systems for comparison. Mulches significantly improved the growth of rice crop in terms of leaf area index, crop growth rate, leaf area duration and dry matter accumulation of rice compared with the no mulch. Similarly, the rice grain quality was also significantly improved by the mulch application. Mulch application increased the brown and white rice length, brown and white rice recovery percentage. The plastic mulch was more effective than straw mulch in improving the growth and grain quality of rice under AWD and AR. AWD was more effective in improving the rice grain quality compared with the AR. In crux, either of the plastic or straw mulch can be applied in fine grain basmati rice fields in order to improve the crop growth and grain quality. The effectiveness of plastic mulch surpasses the efficiency of straw mulch.

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Section: Discussionmentioning

confidence: 99%

Mulching Improves Crop Growth, Grain Length, Head Rice and Milling Recovery of Basmati Rice Grown in Water-saving Production Systems

Jabran¹,

Ullah²,

Akbar³

2015

IJAB

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“…arsenic) from the ground water that is being pumped at an unsustainable rate for irrigation. 33 Flooding of the rice¯elds leads to methane emission which is reduced by up to 70% under AWD in pump-irrigated¯elds. Hence along with being an approach for e±cient use of water, AWD is bene¯cial in reducing methane emission.…”

Section: E±cient Crop Management Practicesmentioning

confidence: 99%

“…Other parameters that may need to be focused in breeding e®orts for AWD rice varieties will include nutrient uptake, tillering angle and grain¯lling in response to soil drying. 33 It will be feasible to design better yielding AWD rice varieties in the future with the help of modern genetic tools such as transcriptomics, genome-wide association study (GWAS) and marker-assisted breeding in combination with information from metabolic networks, biochemistry, geochemistry and physiology.…”

Section: E±cient Crop Management Practicesmentioning

confidence: 99%

Rice Research to Break Yield Barriers

Verma

Ramamoorthy

Kohli

et al. 2015

COSMOS

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The world's population continues to expand and it is expected to cross 9 billion by 2050. This would signi¯cantly amplify the demand for food, which will pose serious threats to global food security. Additional challenges are being imposed due to a gradual decrease in the total arable land and global environmental changes. Hence, it is of utmost importance to review and revise the existing food production strategies by incorporating novel biotechnological approaches that can help to break the crop yield barriers in the near future. In this review, we highlight some of the concerns hampering crop yield enhancements. The review also focuses on modern breeding techniques based on genomics as well as proven biotechnological approaches that enable identication and utilization of candidate genes. Another aspect of discussion is the important area of research, namely hormonal regulation of plant development, which is likely to yield valuable regulatory genes for such crop improvement e®orts in the future. These strategies can serve as potential tools for developing elite crop varieties for feeding the growing billions.

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“…Changes in stomatal morphological characteristics observed in PRD plants (smaller guard cells, lower stomata density) and lower conductivity affected transpiration and contributed to increase of water use efficiency, as well as enhance the photosynthetic capacity have positive impact on net photosynthesis (Wang et al, 2012b;Yan et al, 2012). Also, reduction of vegetative vigor and canopy area allowed better exposure of grains/fruits to solar radiation (more light penetrate the canopy) and induced remobilization of assimilates from vegetative tissues to the fruits/grains that consequently could improve yield and its quality (dos Chaves et al, 2010;Yang and Zhang, 2010;Zhang et al, 2010;Price et al, 2013). In addition, promotion of root growth and development and greater root biomass under PRD conditions increase plant hydraulic conductivity and water uptake (Mingo et al, 2004;Ahmadi et al, 2011;Hu et al, 2011;Pérez-Pérez et al, 2012).…”

Section: Wue and Yieldmentioning

confidence: 99%

Partial Root-Zone Drying Technique: from Water Saving to the Improvement of a Fruit Quality

Jovanović

Stikić

2018

Front. Sustain. Food Syst.

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Due to climate changes and increased demands of different water users (agriculture, industry, domestic) water becomes scarce resources worldwide. Since irrigated agriculture is the one of the largest consumer of these resources (so-called blue water footprint), irrigation management must be shifted from maximal production per crop area to maximal production per unit of water used by crops. Among the strategies for reducing water footprints, changing the full irrigation to the reduced crop's water supply (deficit irrigation techniques) is one of the options. In this mini-review, we present the latest advances of partial root-zone drying (PRD) applications in different agricultural plants, with the special emphases on the PRD effects on increasing WUE, yield and yield quality. We describe two PRD practical approaches (alternate and fixed), background of PRD induced increase in yield and water use efficiency and improved understanding about nutrient use efficiency. The evidence of PRD effect on the increase in nutritional and health attributes of yield in different species is also presented. Because of limited available data, further research is needed to understand complex biosynthetic pathway and synthesis of nutritive-and health-related metabolites and antioxidants in PRDtreated plants. Practical application and promotion of this knowledge will allow farmers in water scarce areas to adapt PRD not only as a strategy for saving water, improving nutrient use and increase/sustain yield, but also for producing food with enhanced nutritive and health characteristics.

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Alternate wetting and drying irrigation for rice in Bangladesh: Is it sustainable and has plant breeding something to offer?

Cited by 86 publications

References 60 publications

Mulching Improves Crop Growth, Grain Length, Head Rice and Milling Recovery of Basmati Rice Grown in Water-saving Production Systems

Mulching Improves Crop Growth, Grain Length, Head Rice and Milling Recovery of Basmati Rice Grown in Water-saving Production Systems

Rice Research to Break Yield Barriers

Partial Root-Zone Drying Technique: from Water Saving to the Improvement of a Fruit Quality

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