Record Details

Physiological and Biochemical Basis of Seed Dormancy in Groundnut (Arachis hypogaea L.) Cultivars

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Physiological and Biochemical Basis of Seed Dormancy in Groundnut (Arachis hypogaea L.) Cultivars
 
Creator VANITHA C
MA KOKILA INDIRA
M KATHIRAVAN
S SUNDARESWARAN
 
Subject Groundnut, Seed development, dormancy, hormonal regulation, volatile profile
 
Description The experiment was undertaken at the Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore to study the physiological and biochemical basis of seed dormancy during seed development and maturation in groundnut. Two groundnut varieties namely dormant variety CO 6 and non-dormant variety VRI 8 were used for this study. The research on The stage of dormancy induction during seed development and maturation revealed that the dormant variety CO 6 confirmed acquisition of dormancy during seed development by registering only 20% germination (20 %) at maximum seed viability (100 %). It recorded 77% fresh ungerminated seeds (FUS) at maturity stage (130 days after sowing). In the nondormant variety VRI 8 percentages of germination, viability and FUS at maturity stage (105 days after sowing) were 78,100 and 20 % respectively. Total phenolic content at maturity stage in seeds of dormant variety CO 6 was significantly higher (77.95 µg/g) over the non-dormant variety VRI 8 (46.62 µg/g). Assessment of hormones at maturity stage revealed that presence of high level of ABA (0.912 µg/g) and low level of GA3 (1.117 µg/g) in dormant variety CO 6 compared to non-dormant variety VRI 8 (0.043 µg/g and 1.141 µg/g, respectively). Determination of volatile compounds in groundnut varieties confirmed that germination inhibitors such as phenols and decanoic acid were found in the seeds of dormant variety at maturity stage, whereas the seeds of non-dormant variety had germination promotingcompounds such as phenyl acetic acid and oleic acid.
 
Publisher Indian Society of Seed Technology
 
Date 2024-08-06
 
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/154697
10.56093/sr.v51i2.154697
 
Source Seed Research; Vol. 51 No. 2 (2023): Seed Research; 76-84
0379-5594
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/SR/article/view/154697/55345
 
Rights Copyright (c) 2024 Seed Research