Water Management in Relation to Crop Production: Case Study on Rice

Bhuiyan, S. I.

doi:10.1177/003072709202100408

Cited by 67 publications

(38 citation statements)

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“…It requires 700-1500 mm of water per cropping season under normal traditional irrigation practices (Bhuiyan, 1992). It is estimated that by 2025, 15 million ha of Asian rice production under irrigation will experience physical water scarcity as the per capita available water resources in Asia are expected to decline by 15-54 percent (Tuong and Bouman, 2003;Rahman and Bulbul, 2015).…”

Section: Introductionmentioning

confidence: 99%

Identifying markers associated with yield traits in Nagina22 rice mutants grown in low phosphorus field or in alternate wet/dry conditions

Yugandhar¹,

Basava²,

Subrahmanyam³

et al. 2017

Aust J Crop Sci

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Mutants are powerful genetic resources in plant breeding and functional genomics studies. Sixty seven stable ethyl methane sulphonate (EMS) induced rice mutants and the wild type parent Nagina 22 (N22) were characterized for plant height, tiller number, panicle number and grain yield under normal, low P field and alternate wet and dry (AWD) conditions in the same season. They were also genotyped with 44 SSR markers and four Pup1 (Phosphorus uptake1) gene specific markers. Genetic diversity was analysed by combining phenotype and marker data using Ward-MLM method. Single marker analysis showed significant association of four markers RM19696, RM263, RM3688 and RM1942 with grain yield in all three conditions. K-1, a Pup1 gene specific marker was significantly associated with tiller number only under low P conditions. The average dissimilarity between mutants was 0.86 and cophenetic correlation coefficient was 0.74. Six mutants were selected as gain-of-function mutants as they showed significantly higher grain yield in all three conditions, compared with N22. The selected mutants are an important resource for gene discovery for enhanced tolerance to low P and water stress conditions and associated markers can be useful in marker assisted selection.

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Section: Introductionmentioning

confidence: 99%

Identifying markers associated with yield traits in Nagina22 rice mutants grown in low phosphorus field or in alternate wet/dry conditions

Yugandhar¹,

Basava²,

Subrahmanyam³

et al. 2017

Aust J Crop Sci

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“…Rice grown under traditional practices in the Asian tropics and subtropics requires between 700-1500mm of water per cropping season depending on soil texture [1]. However, this conventional water management method leads to a high amount of surface runoff, seepage, and percolation that can account for between 50-80% of the total water input [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of Alternate Wetting and Drying (AWD) Irrigation for Boro Rice Cultivation in Bangladesh

Rahman¹

2014

AFF

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Abstract:A field experiment was conducted at the Bangladesh Rice Research Institute to find out possible effects of alternate wetting and drying irrigation (AWDI) on the yield, water use and water use efficiency (WUE) of Boro rice. The experimental plots were laid out with 2 factors RCBD combining two modern varieties of rice viz., BRRI dhan29 and BRRI hybrid2, which received four irrigation treatments randomly and was replicated thrice. The treatments ranged from continuous submergence (T 1 ) of the field to a number of delayed irrigations (T 2 , T 3 and T 4 ) denoting application of 5cm irrigation water when water level in the perforated PVC pipe fell 15, 20 and 25cm below ground level (G.L.), respectively. The study revealed that treatment T 1 attributed by the highest total water use (122.2cm) and the lowest WUE (84.34kg/ha/cm) produced the lowest grain yield (4.71t/ha). Treatment T 2 , on the contrary, gave the highest yield (5.69 t/ha) and consequently the second highest WUE (85.55 kg/ha/cm) indicating quite a large water saving (15cm) compared to treatment T 1 . The yields in treatments T 3 (5.45 t/ha) and T 4 (5.27 t/ha) were significantly lower at 1% level of significance compared to that of treatment T 1 . Significant effect was found either for the treatment or for the varieties on the number of effective and total tillers hill -1, plant height, number of effective tillers hill-1, grain yield, straw yield, biological yield and harvest index.

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“…More than 75 percent of the world's rice is produced under these conventional irrigation practices (i.e., continuous flooding) ( Van der Hoek et al, 2001). Rice grown under traditional practices in the Asian tropics and subtropics requires between 700-1500 mm of water per cropping season depending on soil texture (Bhuiyan, 1992). However, this conventional water management method leads to a high amount of surface runoff, seepage, and percolation that can account for between 50-80 percent of the total water input (Sharma, 1989).…”

Section: Introductionmentioning

confidence: 99%

Achieving More with Less Water: Alternate Wet and Dry Irrigation (AWDI) as an Alternative to the Conventional Water Management Practices in Rice Farming

Chapagain¹,

Riseman²,

Yamaji³

2011

JAS

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Alternate Wet and Dry Irrigation (AWDI) is a water management system where rice fields are not kept continuously submerged but are allowed to dry intermittently during the rice growing stage. A field experiment was conducted in Chiba, Japan during the rice growing season (May-September) of 2008 to assess AWDI and continuous submerged water management practices for their effects on productivity, the surrounding environment, water savings, and Water Productivity Index (WPI). The impact of age of seedlings and plant spacing were also assessed.AWDI using the proposed irrigation schedule of 10 wet days alternated with 10 dry days used less water (29% less water) without significant reduction in grain yield (7.2 t/h) compared with conventional irrigation (7.8 t/h). Water Productivity Index was significantly higher in all sub-plots in AWDI treatments. WPI was 1.7 kg/m 3 in AWDI treatments compared to 1.3 kg/m 3 in conventional water management. Additional significant results from AWDI treatment included reduced pest and disease incidence, shortened crop cycle, and reduced lodging. However, slightly higher grain yields were observed in all sub-plots of the conventional irrigation treatment than were observed in the same combinations under AWDI. This underscores the need for further research in defining what constitutes an optimum interval for AWDI considering local soil properties, prevailing climate, and the critical periods during the rice growth cycle when the yield was particularly sensitive to moisture stress.Keywords: Alternate wet and dry irrigation (AWDI), System of rice intensification (SRI), Water savings, Water productivity index (WPI), Split-split plot design (S-SPD)

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Water Management in Relation to Crop Production: Case Study on Rice

Cited by 67 publications

References 1 publication

Identifying markers associated with yield traits in Nagina22 rice mutants grown in low phosphorus field or in alternate wet/dry conditions

Identifying markers associated with yield traits in Nagina22 rice mutants grown in low phosphorus field or in alternate wet/dry conditions

Effect of Alternate Wetting and Drying (AWD) Irrigation for Boro Rice Cultivation in Bangladesh

Achieving More with Less Water: Alternate Wet and Dry Irrigation (AWDI) as an Alternative to the Conventional Water Management Practices in Rice Farming

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