How do extreme wet events affect rice quality in a changing climate?

Lee, Myoung-Seok; Kang, Beom-Soo; Lee, Jeong Eun; Choi, Woo‐Jung; Ko, Jonghan; Choi, Jae Eul; An, Kyu-Nam; Kwon, Oh-Do; Park, Heung-Gyu; Shin, Hae-Ryong; Lee, In; Kim, Jong-Kook; Kim, Han-Yong

doi:10.1016/j.agee.2013.03.006

Cited by 11 publications

(5 citation statements)

References 39 publications

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“…The highest percentage of chalky grains at the sprinkler irrigation regime of 100% of the ETc in 2011/2012 is justified by the lower occurrence of precipitations during the grain filling period (R4-R9) (Figure 1), evidencing that this irrigation depth did not fully meet the water demand of the crops under these conditions. These results corroborate those of Arf et al (2002), Lee et al, (2013), and Marchezan et al, (1992), whereby the percentage of chalky grains was increased with water deficit. Considering that there was a higher frequency of rainfall in the period R4-R9 in 2014/2015, there was no water restriction in the sprinkler irrigation depth at 100% of the ETc, resulting in a lower percentage of chalky grains (mean of 1.62%) relative to 2011/2012.…”

Section: Resultssupporting

confidence: 88%

“…These values are important because they determine the commercial value of the grains (Bryant et al, 2012;Crusciol et al, 2008;Artigiani et al, 2012). Arf et al (2002), Singh et al (2017), and Lee et al (2013) observed that water restriction might affect the quality of rice grains. Therefore, changes in the type of irrigation of lowland rice cultivars may affect grain yield and quality.…”

Section: Introductionmentioning

confidence: 99%

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Classification of Rice Grains of Lowland Cultivars Grown Under Flood Irrigation and Sprinkler Irrigation

et al. 2018

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The objective of this study is to analyze the classification of rice grains of lowland cultivars grown under flood and sprinkler irrigation. The study was carried out in the agricultural years 2011/2012 and 2014/2015 using a completely randomized block design with split plots. In 2011/2012, the treatments were three lowland rice cultivars grown under flood irrigation system and five sprinkler irrigation depths with four replications. In 2014/2015, the experimental design was maintained but flood irrigation was not performed. After harvest, the samples were processed in a rice testing machine, including peeling, polishing and classification. Whole and broken grains were weighed to calculate hulling and milling yield. The classifications followed the guidelines described in Normative Instruction No. 6 of the Ministry of Agriculture, Livestock, and Supply of Brazil. In 2011/2012, there was interaction between sprinkler irrigation depths and the cultivars on hulling and milling yield, and in 2014/2015, there was significant difference in hulling yield between the cultivars. Genetic characteristics and water availability affected the classification of rice grains grown under sprinkler irrigation. In two sprinkler irrigation depths, the quality of the grains was similar to flood irrigation system. The highest milling yield was obtained in cultivar IRGA 417.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Classification of Rice Grains of Lowland Cultivars Grown Under Flood Irrigation and Sprinkler Irrigation

et al. 2018

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“…0.92% annually, however, the correlation test between the incidence of extreme weather and aggregate rice production in Lampung was weak. This fact was contrary to the general hypothesis by many authors (Hansen, Mason, Sun, & Tall, 2011;Iizumi et al, 2014;Lee et al, 2013;Zhang et al, 2014) where extreme weather reduces rice production.…”

Section: Local Adaptation To Extreme Weather and Future Challengecontrasting

confidence: 96%

Local Adaptation to Extreme Weather and It’s Implication on Sustainable Rice Production in Lampung, Indonesia

et al. 2021

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Extreme weather incidents refer to high rainfall and strong winds have been speculated to be detrimental on rice production. However, researches on the local adaptation to their impact on rice production are limited especially on tropical region like Indonesia. A study was conducted in Pesawaran, West Lampung, North Lampung, and Bandar Lampung using time series data of 2000-2015 and ground checking during extreme weather and normal seasons and its implication on sustainable management. Data were evaluated using multivariate regressions. Results demonstrated that the impact of extreme weather on the reduction of rice production was weak, 0.92%. Shifting on rice production among swampy, irrigated, and dry lands at which covered area of 13.67%, 42.69% and 43.65%, respectively, minimized the impact of the extreme weather. During limited precipitation, irrigated and swamplands had 2.5-3.0 times cropping intensity. Conversely, during La-Nina with excess precipitation, cropping in irrigated and drylands increased by 20 and 58%, respectively. Moreover, the local government maintained annual production improvement by about 5% through expansion of irrigated land, high yielding varieties and inputs subsidies. Considering that incident of extreme weathers tended to occur more frequently, consequently, planting calender utilization and rice variety adapted should be implemented.

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“…Extreme wet events in East Asian monsoon regions, as a consequence of increasing rainfall distribution during the early autumn, have significant main and interaction effects on rice quality, particularly chalkiness . The effects of wet events interact positively with elevated air temperature, and negatively with rising CO 2 concentration . Submergence of rice plants in water under low CO 2 concentrations for 4–12 days at the vegetative stages of development reduced the concentrations of soluble sugars and starch in all plant parts by 4–12 fold .…”

Section: Impact Of Watermentioning

confidence: 99%

Section: Impact Of Watermentioning

confidence: 99%

Impact of environmental factors on rice starch structure: A review

2014

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Among cereal grains, rice is the world's leading source of caloric energy in the human diet. About 90% of a milled rice kernel is starch (dry weight basis), thus justifying the need to understand the impacts of factors affecting starch composition and behavior when processed. This review presents past and current perspectives regarding the effects of growing environment on the macro, micro, and nano level structures of rice starch. The environmental elements considered in this work are: air temperature, atmospheric carbon dioxide, light, water, and soil nutrients. All these elements are essential for plant development and reproduction. The effect of air temperature is the most widely explored aspect of the environment in relation to rice production and grain quality. This could be attributed in part to the recently purported and highly publicized global warming phenomenon. Amylose content has remained a major predictor of rice starch quality but emerging instrumental techniques have facilitated more thorough research addressing the fine structure of amylopectin, which constitutes ∼70% of the starch present in a milled rice kernel. Kernel chalkiness appears to be the most common visual manifestation of environment‐related stress. Typically, there are genotype by environment interactions; this may result in inconsistent temporal and spatial findings. However, such interactions may prove useful in identifying particular genotypes that are adaptable and stable across growing locations.

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How do extreme wet events affect rice quality in a changing climate?

Cited by 11 publications

References 39 publications

Classification of Rice Grains of Lowland Cultivars Grown Under Flood Irrigation and Sprinkler Irrigation

Classification of Rice Grains of Lowland Cultivars Grown Under Flood Irrigation and Sprinkler Irrigation

Local Adaptation to Extreme Weather and It’s Implication on Sustainable Rice Production in Lampung, Indonesia

Impact of environmental factors on rice starch structure: A review

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