Efficacy of Irrigation Interval after Anthesis on Grain Quality, Alkali Digestion, and Gel Consistency of Rice

The management of amylose and protein contents and cooking quality are the main challenges in rice macronutrients and quality improvement. This experiment was conducted to examine the rice grain quality, alkali digestion, and gel consistency responses to irrigation interval after anthesis. Three rice varieties (K1, K3, and K4) were subjected to different irrigation intervals (1, 2, and 3 d) after anthesis. The findings of this study showed that the protein content was markedly increased from 6.53–6.63% to 9.93–10.16%, whilst the amylose content was decreased significantly from 22.00–22.43% to 16.33–17.56% under stressed treatments at irrigation intervals, whilst the quantity of fatty acids was not affected. The 3-d irrigation interval recorded the highest protein content but the lowest amylose value. In addition, this treatment shows lower gelatinization temperature, but it is negatively associated with hard gel consistency under irrigation interval. This study highlights that the water management following a 3-d irrigation interval from anthesis is a useful and simple treatment to improve rice nutrients and grain cooking quality.

[1]  M. Fitzgerald,et al.  A single nucleotide polymorphism in the Waxy gene explains a significant component of gel consistency , 2011, Theoretical and Applied Genetics.

[2]  N. M. Piero,et al.  Physicochemical Characterization of Selected Rice (Oryza Sativa L.)Genotypes Based on Gel Consistency and Alkali Digestion , 2016 .

[3]  M. Ismail,et al.  Impact of cyclic water stress on growth, physiological responses and yield of rice (Oryza sativa L.) grown in tropical environment , 2014 .

[4]  Jiankun Xie,et al.  Analysis of genotypic and environmental effects on rice starch. 1. Apparent amylose content, pasting viscosity, and gel texture. , 2004, Journal of agricultural and food chemistry.

[5]  T. Xuan,et al.  Efficacy of N-Methyl-N-Nitrosourea Mutation on Physicochemical Properties, Phytochemicals, and Momilactones A and B in Rice , 2019, Sustainability.

[6]  T. Xuan,et al.  Imposed Water Deficit after Anthesis for the Improvement of Macronutrients, Quality, Phytochemicals, and Antioxidants in Rice Grain , 2018, Sustainability.

[7]  S. U. Siddiqui,et al.  Pakistan rice genetic resources-I: Grain morphological diversity and its distribution , 2007 .

[8]  M. Dingkuhn,et al.  Effect of drainage date on yield and dry matter partitioning in irrigated rice , 1996 .

[9]  C. M. Perez,et al.  A gel consistency test for eating quality of rice. , 1973, Journal of the science of food and agriculture.

[10]  T. Xuan,et al.  Current Situation and Sustainable Development of Rice Cultivation and Production in Afghanistan , 2019, Agriculture.

[11]  T. Xuan,et al.  Morphological Observation and Correlation of Growth and Yield Characteristics with Grain Quality and Antioxidant Activities in Exotic Rice Varieties of Afghanistan , 2019, Agriculture.

[12]  Hyoung‐Chin Kim,et al.  Protein Profiles of Major Korean Rice Cultivars , 2007 .

[13]  T. Xuan,et al.  Allelopathic momilactones A and B are implied in rice drought and salinity tolerance, not weed resistance , 2016, Agronomy for Sustainable Development.

[14]  Qifa Zhang,et al.  The main effects, epistatic effects and environmental interactions of QTLs on the cooking and eating quality of rice in a doubled-haploid line population , 2005, Theoretical and Applied Genetics.

[15]  M. Fitzgerald,et al.  Gelatinization temperature of rice explained by polymorphisms in starch synthase. , 2006, Plant biotechnology journal.

[16]  B. Fakheri,et al.  Improvement of the eating and cooking qualities of rice : a review , 2015 .

[17]  T. Xuan,et al.  Efficacy of N-methyl-N-nitrosourea (MNU) Mutation on Enhancing the Yield and Quality of Rice , 2019, Agriculture.

[18]  S. Inanaga,et al.  Effect of Pre- and Post-heading Water Deficit on Growth and Grain Yield of Four Millets , 2012 .

[19]  Noor Agha Nawakht,et al.  Comparison of physicochemical properties, grain quality, and ultrastructure of rice cultivars , 2020, International Journal of Innovative Research and Scientific Studies.

[20]  A. Audebert,et al.  Effect of water deficit at grain repining stage on rice grain quality , 2010 .

[21]  Qing-sen Zhu,et al.  [Effects of water stress during grain-filling period on rice grain yield and its quality under different nitrogen levels]. , 2006, Ying yong sheng tai xue bao = The journal of applied ecology.

[22]  Qifa Zhang,et al.  Genetic basis of 17 traits and viscosity parameters characterizing the eating and cooking quality of rice grain , 2007, Theoretical and Applied Genetics.