Water stress response on morpho-physiology, biochemical parameters and yield of four different rice cultivars of Manipur

Chanu, Wangkhem Sandhya; Sarangthem, Kananbala

doi:10.1007/s42535-023-00580-x

Cited by 2 publications

(4 citation statements)

References 26 publications

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“…This result shows that the tiller number of test lines has not decreased during the drought. This result contrasts with the findings of Chanu & Sarangthem (2023), which showed that the drought reduced the number of tillers, possibly as a result of less water being absorbed for photosynthesis and the restriction of systematic tissue cell division. Inpari 10 was the test line with the most tillers, and lines in Cluster I have more tillers than lines in other clusters.…”

Section: Resultscontrasting

confidence: 99%

“…Droughts in the vegetative stage can inhibit plant height and the development of the number of tillers (Davatgar et al, 2009). Chanu & Sarangthem (2023) report that the plant height and the number of tillers will be inhibited or decreased as the drought period increases.…”

Section: Resultsmentioning

confidence: 99%

“…It was indicated that drought periods at maximum tillering and at primordia inhibit plant height. According to Chanu & Sarangthem (2023), drought prevents cell division or cell enlargement. Plant posture was observed to be lower in lines treated with drought during maximum tillering.…”

Section: Resultsmentioning

confidence: 99%

“…Since genotypic variations should have a stronger influence on that character than environmental factors, their responses to drought should not differ noticeably between drought periods. However, during a longer period of drought, panicle numbers per hill decrease (Chanu & Sarangthem, 2023). They hypothesized that the decrease in the number of panicles could be due to the minimal translocation of assimilation and water during panicle initiation and at the booting stage.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Drought Periods on Rice Lines Growth and Yield

Margaret,

Nafisah,

Sujinah

et al. 2024

JTEP-L

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Numerous variables, such as drought period, growth stage, and varieties, influence rice growth and yield in response to drought. This study was conducted to determine the effect of drought periods on the growth and yields of several rice lines and varieties as well as to select drought-tolerant lines. Using a split-plot design with three replications, the pot experiment was carried out in the greenhouse from December 2015 to April 2016 at the Sukamandi Experimental Site of Indonesian Center for Rice Research (BB Padi). Drought periods were treated as the main-plot, while the rice lines/varieties were treated as sub-plots. The main-plot consists of four levels: control, drought at the maximum tillering stage, drought at the primordia stage, and drought at the grain filling stage. The rice lines used are expand lines of rainfed lowland rice and upland rice from the BB Padi breeding program. The results showed that of the 36 rice lines and 6 varieties tested, drought periods during maximum tillering and primordia affected plant height, while the tiller number was not affected by all drought periods. From the yield characters, drought periods increased unfilled grain percentage and decreased 1000 grains weight and also grain weight per plant. Jatiluhur is consistently tolerant and has the highest yield. There are 8 rice lines with consistent tolerance and not significantly different yields with Jatiluhur: B13650E-TB-80-2, B14168E-MR-6, B14168E-MR-10, B14168E-MR-11, B14168E-MR-12, B14168E-MR-13, B12480D-MR-7-1-1, and B12056F-TB-1-29-1. Keywords: Drought periods, Rice lines, Growth, Yield

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Effect of Drought Periods on Rice Lines Growth and Yield

Margaret,

Nafisah,

Sujinah

et al. 2024

JTEP-L

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Drought Stress Tolerance in Rice: Physiological and Biochemical Insights

Jarin,

Islam,

Rahat

et al. 2024

IJPB

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Rice (Oryza sativa L.), an important food crop, necessitates more water to complete its life cycle than other crops. Therefore, there is a serious risk to rice output due to water-related stress. Drought stress results in morphological changes, including the inhibition of seed germination, reduced seeding growth, leaf area index, flag leaf area, increased leaf rolling, as well as the decrement of yield traits, such as plant height, plant biomass, number of tillers, and 1000-grain yield. Stress also causes the formation of reactive oxygen species (ROS) such as O2−, H2O2, and OH−, which promote oxidative stress in plants and cause oxidative damage. The process of oxidative degradation owing to water stress produces cell damage and a reduction in nutrient intake, photosynthetic rate, leaf area, RWC, WUE, and stomatal closure, which may be responsible for the decrement of the transpiration rate and plant dry matter under decreasing soil moisture. Plants have the ability to produce antioxidant species that can either be enzymatic (SOD, POD, CAT, GPX, APX) or non-enzymatic (AsA, GSH) in nature to overcome oxidative stress. During drought, several biochemical osmoprotectants, like proline, polyamines, and sugars, can be accumulated, which can enhance drought tolerance in rice. To meet the demands of an ever-growing population with diminishing water resources, it is necessary to have crop varieties that are highly adapted to dry environments, and it may also involve adopting some mitigation strategies. This study aims to assess the varying morphological, physiological, and biochemical responses of the rice plant to drought, and the various methods for alleviating drought stress.

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Water stress response on morpho-physiology, biochemical parameters and yield of four different rice cultivars of Manipur

Cited by 2 publications

References 26 publications

Effect of Drought Periods on Rice Lines Growth and Yield

Effect of Drought Periods on Rice Lines Growth and Yield

Drought Stress Tolerance in Rice: Physiological and Biochemical Insights

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