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Understanding the Water Absorption Dynamics in Relation to Hardseededness in Mung bean (Vigna radiata L.) Genotypes

Indian Agricultural Research Journals

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Title Understanding the Water Absorption Dynamics in Relation to Hardseededness in Mung bean (Vigna radiata L.) Genotypes
 
Creator DEBASHIS PAUL
S K CHAKRABARTY
NIDHI
SUMAN DUTTA
 
Subject Imbibition, Hard seeds, Kharif, summer, Mung bean
 
Description Hardseededness, common in majority of pulse crops, is considered an undesirable character whichadversely affects their culinary use. Hardseededness results from reduced permeability of the seed coat to water,hence also impacts germination. Addressing a knowledge gap in this area, the current investigation was undertakenon three hardseeded and three non-hardseeded mung bean genotypes in an attempt to understand the impact ofgenotype, storage period, and scarification treatments on water absorption dynamics in mung bean. The wateruptake patterns of three hardseeded and three non-hardseeded genotypes produced during the Kharif and summerseasons of 2019, were studied in fresh and 18-month stored control and scarified seeds. The degree ofhardseededness, judged by imbibition time, was higher in seeds produced during the Kharif season compared tothe summer season in all genotypes. Notably, non-hard seeds displayed a higher increase in weight per unit time,affirming a more rapid water uptake compared to hard seeds produced during the Kharif season. Conversely,genotypes grown in the summer season showed a lower lag phase and early radical protrusion. Stored seedsexhibited a pattern similar to those produced in the summer season with a lower lag phase duration. Scarifiedseeds demonstrated the shortest lag phase, with the second rise in water absorption occurring within 8-10 hours.It was concluded that mung bean may be cultivated in summer season for the for the purpose of seed production,and the study emphasized the effectiveness of scarification as a proven method to alleviate coat-imposed dormancy,facilitating easier water entry into the seeds and promoting early radical protrusion.
 
Publisher Indian Society of Seed Technology
 
Date 2024-07-25
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/SR/article/view/154194
10.56093/sr.v49i2.154194
 
Source Seed Research; Vol. 49 No. 2 (2021): Seed Research; 92-97
0379-5594
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/SR/article/view/154194/55204
 
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