Morphological responses of a high yielding groundnut cultivar (Arachis hypogaea L. cv. K-134 ) under water stress

Madhusudhan, K. V.; Sudhakar, Chinta

doi:10.30750/ijpbr.2.1.5

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…Depletion ratio generally affected the growth (plant height and the number of branches) of peanuts, the reduction in plant height with high depletion percentage could be attributed to a lower crop growth rate and the decrease in relative water content. These results agree with those of Madhusudhan and Sudhakar (2014) and Mourad, (2014). It is important to note that a higher number of branches in plants is desirable because it produces a higher yield, the decrease in the number of branches due to the lack of moisture content may be due to minimizing the shoot system of peanuts under dry conditions.…”

Section: Discussionsupporting

confidence: 93%

Response of peanut (Arachis hypogaea L.) to potassium, silicon, and selenium foliar application under water stress conditions

Abdelraouf

Mourad

2023

Egyptian Journal of Agricultural Research

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With water resources becoming more limited in arid and semi-arid regions, water-saving strategies are needed to reduce agricultural water use. A field experiment was carried out at EL-Bostan Agricultural Farm, Faculty of Agriculture, Damanhur University, EL-Behira Governorate, Egypt, during two successive summer seasons 2020 and 2021 to investigate the effect of foliar application of potassium, silicon, and selenium on some growth characteristics, chemical properties, yield, and some related traits of the peanut crop (Arachis hypogea L.) under water deficit conditions. A split-plot design was used; three depletion ratios (50, 60, and 70%) of available water were applied in the main plots, while four spray treatments (tap water (as control), 2% K2SO4, 2 mM Si as Na2O3Si.9H2O, and 30 g Se/ha as Na2SeO4) were laid in the subplots. The findings revealed that increasing the depletion percentage from 50% to 70% resulted in a significant decrease in all traits except the shelling percentage. Potassium foliar application produced the highest plant height and the number of branches per plant, whereas silicon treatment resulted in the highest pod yield per plant, seed yield per plant, shelling percentage, 100-pod weight, 100-seed weight, and pod yield. Treatment with selenium led to high chlorophyll contents. The interaction between the two studied factors showed that irrigation after a 50% depletion ratio with potassium foliar application recorded significant values of the plant height and number of branches. The highest content of chlorophyll was achieved when the crop was treated with selenium under irrigation after depleting 70% of the available soil moisture content. The highest values of pod yield per plant, seed yield per plant, and pod yield (ard/fed) were observed when the peanut was irrigated after a 50% depletion ratio with silicon foliar application. The best shelling percentage was achieved with potassium under a 70% depletion ratio. The treatment with silicon under a 60% depletion ratio recorded the heaviest 100-pod weight and 100-seed weight. When peanut plants are subjected to water stress, treatment with silicon, potassium, or selenium reduces crop losses and increases plant tolerance to stressful water conditions.

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Section: Discussionsupporting

confidence: 93%

Response of peanut (Arachis hypogaea L.) to potassium, silicon, and selenium foliar application under water stress conditions

Abdelraouf

Mourad

2023

Egyptian Journal of Agricultural Research

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“…At recovery stage, plant height of all genotypes did not recover with that of respective controls and genotype Dharani maintained higher plant height at control (18.4 cm plant -1 ) as well as stress release (14 cm plant -1 ) conditions. Our results are in line with earlier reports of decreased shoot growth in groundnut due to moistures stress (Madhusudhan and Sudhakar, 2014a). Baroowa et al (2012) also reported that plant height reduced in black gram and green gram genotypes due to moisture stress and their recovery not up to the control in these two crops.…”

Section: Effect Of Moisture Stress On Growth and Dry Matter Productionsupporting

confidence: 93%

Variability in Response of Groundnut (Arachis hypogaeaL.) Genotypes to Moisture Stress and Stress Release

Sunitha¹,

Vanaja²,

Sowmya³

et al. 2015

Inter. Jour. of Bio-reso. Stress Manag.

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Groundnut (Arachis hypogaea L.) is an important oilseed cash crop and an erratic rainfall with prolonged dry spells during critical pheno-phases of reproductive stages affects its yield. A field trial was carried out with groundnut genotypes-JL-24, ICGV 91114, Narayani, Abhaya, Dharani and Greeshma to study the variability in morphological, biochemical and yield traits to moisture stress at flowering stage. Significant reduction in growth and yield components of all the selected groundnut genotypes was observed due to moisture stress. ANOVA for pod weight, seed weight, 100 seed weight, harvest index, total biomass were found to be highly significant (p<0.01) for genotypes, moisture levels and their interactions. Impact of moisture stress on plant height, leaf area, leaf and shoot biomass was lowest in Dharani and osmoprotectant-proline and activity of antioxidant enzymes-SOD and POD were higher in Dharani. The yield performance of Narayani, Abhaya, Dharani were similar as well as superior under control condition where as under moisture stress conditions Dharani recorded highest seed yield, HI with lowest reduction in seed number and 100 seed weight. Under control conditions seed yield had significant positive correlation with pod number, pod weight and seed number whereas under moisture stress conditions with SOD, POD, leaf area, leaf dry weight, pod weight, seed number, 100 seed weight and shelling %. The groundnut genotype Dharani performed best under both control and moisture stress conditions as its high antioxidative enzyme activity and proline content might have been ameliorated the ill effects of moisture stress.

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“…Rapid root growth into the surrounding soil would have an adaptive advantage to utilize the soil water more completely. The findings of Reddy et al (2003), Thiyagarajan et al (2009) and Madhusudhan and Sudhakar (2014)…”

Section: Root Length and Root Volumementioning

confidence: 88%

Physiological and Yield Responses of Groundnut (Arachis hypogaea L.) Genotypes to Drought

Kalarani¹,

Senthil²,

Sowmiyapriya³

2016

MAJ

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Groundnut (Arachis hypogaea L.) is an important oil seed crop mainly grown as rainfed crop. Due to erratic rainfall and frequent drought during the crop growth period, groundnut yields are generally low and unstable under rainfed conditions. Drought during critical crop growth stages is crucial for yield in groundnut varieties. But tolerant genotypes may give better yield due to maintenance of physiological responses that were triggered during drought. The experiment was conducted in the Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore during 2015-2016 to study physiological characters responsible for improving yield of different groundnut genotypes viz., CO 7, COGn 4, TMV 7 and TMVGn 13 under water stress at different flowering phases viz., pre flowering drought (PFD) during 15- 30 DAS, flowering drought (FD) during 35-50 DAS and post flowering drought (PoFD) during 75-90 DAS by withholding irrigation and control was also maintained with watering up to field capacity for comparison. Observations on various physiological parameters viz., leaf area, root length, relative water content, osmotic potential and leaf gas exchange parameters including, photosynthetic rate, transpiration rate and stomatal conductance were studied during stress and recovery period. Among the treatments, the plants under PFD performed better in recording higher value of physiological parameters under stress and recovered quickly. The variety, CO7 was found to perform well under all stages of stress followed by TMV 7, TMVGn 13 and COGn 4 with respect to physiological parameters and yield.

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Morphological responses of a high yielding groundnut cultivar (Arachis hypogaea L. cv. K-134 ) under water stress

Cited by 5 publications

References 8 publications

Response of peanut (Arachis hypogaea L.) to potassium, silicon, and selenium foliar application under water stress conditions

Response of peanut (Arachis hypogaea L.) to potassium, silicon, and selenium foliar application under water stress conditions

Variability in Response of Groundnut (Arachis hypogaeaL.) Genotypes to Moisture Stress and Stress Release

Physiological and Yield Responses of Groundnut (Arachis hypogaea L.) Genotypes to Drought

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