Screening of Black Gram (Vigna Mungo L. Hepper) Varieties for Tolerance to Salinity

Shanthi, P.; Ramesh, P.; Sakaravarthy, K. Sibi; Vivekananthan, T.; Umadevi, M.; Sivasubramaniam, K.

doi:10.18805/lr-4191

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…This experiment was conducted at Agricultural College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai in Pudukkottai district of Tamil Nadu. For screening artificially at vegetative, flowering and maturity phases, a total of six genotypes based on its tolerance and susceptibility at germination stage under different levels of salinity condition viz., VBG14-16, VBN (Bg) 4, VBN 8, VBN 11, VBN 10 and VBG13-003 (Shanthi et al, 2020) were selected for this study. The selected genotypes were raised in plastic pots (one feet width and height) in two replications and four different saline treatments were imposed viz.…”

Section: Methodsmentioning

confidence: 99%

“…For EC of 4.0 ds/m level, 0.075 g of NaCl and 0.037 g for the remaining salts dissolved in the 100 ml of deionised water. Similarly for 11.0 ds/m EC, 0.175 g of NaCl and 0.0875 g of other salts were dissolved in the 100 ml of deionised water, 16.0 ds/m EC was achieved by dissolving 0.25 g of NaCl and 0.125 g of remaining salts were dissolved in the 100 ml of deionised water and deionised water is used as control (0.00 EC) with no salts (Singh et al, 2009;Shanthi et al, 2020). Artificially prepared saline waters of different EC level (4.0 EC, 11.0 EC, 16.0 EC ds/m) were used to irrigate pots in alternate days and the control was irrigated with deionised water.…”

Section: Methodsmentioning

confidence: 99%

“…In pulses Germination, vegetative, flowering and maturity are the important and critical stages; increased salinity during these stages directly affects the yield. Hasan et al, 2019 reported, in (Hasan et al, 2019;Shanthi et al, 2020;Priyadharshini, et al, 2019) the studies at vegetative, flowering and maturity stages are very negligible. Flowering and maturity stages are the important critical stages which affect directly to the yield.…”

Section: Introductionmentioning

confidence: 99%

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Morphological and Yield Attribute of Blackgram Genotypes under Different Salinity Stress Conditions

Shanthi

Ramesh

Parameshwaran

et al. 2021

IJARe

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Background: Blackgram is one of the important grain legumes in India. Pulses are the important source of protein for the vegetarian people. To meet out the current demand of pulses, there is a crucial need to increase the blackgram production. Mostly this crop is cultivated in marginal lands where the abiotic stresses like drought and salinity are predominant. The area under salinity in India is 6.73 million hectares and in blackgram no variety was identified as suitable for saline areas.Methods: This experiment was carried out to study the salinity tolerance levels of balckgram genotypes at vegetative and reproductive stages during Rabi season of 2018-20. A total of six blackgram genotypes were used to screen its performance under saline environment at vegetative and reproductive stage. All the genotypes were raised in pot with the size of 20 cm height and 15 cm width with four replications and salinity were stimulated artificially viz., 4.0 EC, 11.0 EC and 16.0 EC ds/m, its growth habits were observed.Conclusion: Salinity impact adversely affects blackgram genotypes under study. The number of days to survival of the plant and plant height were decreased by increasing salinity level and number of irrigation with saline water and it was reduced to ½ at 16 EC ds/m as compared to control. Days to 50% flowering, chlorophyll content and single plant yield were severally affected by increasing salt concentration. Increasing salt concentration was found directly proportionate to increasing number of days taken for flower initiation and at high level of salinity (16.0 EC ds/m) the plants dried before flowering. The plant yield was much affected by slight increase in salt concentration. At 4.0 EC ds/m level the yield was reduced to ¼ as compared to control. The 100 grain weight was not much affected by increasing salt concentration; Chlorophyll content also reduced 2/3 by increasing salt concentration after 15 DAS. The genotypes VBG-14-016 performed better under 4.0 EC ds/m level and survived for more number of days followed by the variety VBN 8.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphological and Yield Attribute of Blackgram Genotypes under Different Salinity Stress Conditions

Shanthi

Ramesh

Parameshwaran

et al. 2021

IJARe

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“…Four levels of salinity (4.0 EC, 8.0 EC, 12.0 EC and 16.0 EC dsm -1 ) were compared with control (0.0 EC). Since salinity is not due to the single salt stress the experiment solution with different EC levels were prepared using combination of salts viz., NaCl, Na 2 SO 4 , KCl, K 2 SO 4 , MgCl 2 , MgSO 4 and CaCl 2 in the ratio of 2:1:1:1:1:1:1, respectively dissolved in deionized water (Singh et al, 2009;Shanthi et al, 2021). Screening was done by roll towel method with two replications and 20 seeds per replication were placed for germination in each treatment.…”

Section: Methodsmentioning

confidence: 99%

Assessment of Salinity Tolerance in Greengram [Vigna radiata (L.) Wilczek]

Shanthi¹,

Parameshwaran²,

Umadevi³

et al. 2023

ASD

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Background: Greengram is one of the important and salt sensitive food legume crops with high nutritional quality. The area under salinity is increasing gradually due to various reasons like global warming, continues irrigation of bore well water and use of more organic fertilizers etc. Identification of salinity tolerant genotype in greengram is highly essential to improve the production and productivity. Salinity stress condition increases the absorption of more Na+ whereas the reduction of K+ absorption was noticed, which thus decreases the K+ /Na+ ratio. The first visible symptom due to salinity stress was retarded growth because of more uptake of Na+ ions leads to reduction of physiological activities. The next important character affected by salinity stress was radical growth. Methods: A total of 20 greengram genotypes were evaluated for salinity tolerance under four EC levels. Screening was done by roll towel method with two replications. The roll towels were placed in different buckets filled with different EC level of saline water and observations were recorded on the 8th day of germination. Result: The salinity level of more than 4.0 EC dsm-1 causes gradual reduction in radicle length and at 12.0 EC level almost in all the genotypes the radicle length was reduced to half as compare to control. The correlation analysis indicated that the plumule length and radicle length were the important criteria for selection to salinity tolerance. While observing the other growth parameters like plumule and radical length reduction, dry matter weight and salinity tolerance and susceptible index the genotypes IPMD 14-10 and VGG 17-038 were identified as more tolerant genotypes and DGGV 80, PUSA-BM5 and VBN 4 were more sensitive genotypes.

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