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Effect of waterlogging on physiological traits and yield in black gram (Vigna mungo L.) in field condition

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Title Effect of waterlogging on physiological traits and yield in black gram (Vigna mungo L.) in field condition
 
Creator Bansal, Ruchi
Dikshit, HK
Singh, AK
Kumar, Sunil
Kumar, Ashok
 
Subject Black gram
Chlorophyll
Flooding
Sugars
Yield
 
Description 580-585
Waterlogging is an important abiotic factor affecting crop productivity worldwide. Black gram (Vigna mungo L.) is very sensitive to waterlogged conditions. A field experiment was conducted in randomized complete block design to evaluate three black gram genotypes for waterlogging tolerance. Stress was imposed by maintaining the water level above the soil surface for 10 days after 30 days of sowing. Different physiological parameters including chlorophyll (Chl), chlorophyll fluorescence, normalized difference vegetation index (NDVI), sugars, along with the yield per plant and thousand grain weight (TW) were recorded in control and stressed plants. Results showed that NDVI, Chl, chlorophyll fluorescence, sugars, seed yield and TW reduced significantly during stress. Stress susceptibility index (SSI) for grain yield varied from 0.32 to 2.38. Linear correlation study showed that SSI was negatively correlated with NDVI (0.43),Chl (0.68) and TW (0.42) and grain yield (0.96). NDVI and sugars were correlated to TW under stress. IC530491 and IC559933 (SSI < 0.5) were waterlogging tolerant under field conditions. The study concluded that identified black gram lines may be utilized as trait donors in breeding program.
 
Date 2022-05-26T11:27:01Z
2022-05-26T11:27:01Z
2022-05
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/59766
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJBB Vol.59(5) [May 2022]