JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
About Journal
    Home
    Obituary: Dr. R. C. Dalela
    Editorial Board
    Reviewer Panel
    Publication Policies
    Guidelines for Editors
    Guidelines for Reviewers
    Abstracting and Indexing
    Subscription and Payments
    Contact Journal
    About Triveni Enterprises
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Guidelines for Authors
    Terms and Conditions
    Author Resources
    Fees and Payments
    Track Paper Status
 

Google Search the Journal web-site:


    Abstract - Issue Sep 2017, 38 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Differences in seed vigour traits between desi (pigmented) and kabuli (non-pigmented) ecotypes of chickpea (Cicer arietinum) and its association with field emergence

 

A. Lamichaney1*, S. Kudekallu2, U. Kamble2, N. Sarangapany2, P.K. Katiyar1 and A. Bohra1

1Division of Crop Improvement, ICAR Indian Institute of Pulses research, Kanpur-208 024, India

2ICAR Indian Institute of Seed Science, Mau-275 103, India

*Corresponding Author E-mail: amritiipr@gmail.com

 

 

 

Key words

Chickpea,

Electrical conductivity,

Field emergence,

Pigmentation,

Water uptake

 

 

 

Publication Data

Paper received : 28.04.2016

Revised received : 07.10.2016

Re-revised received : 07.11.2016

Accepted : 26.12.2016

 

Abstract

Aim: Pigmented (desi) and non pigmented (kabuli) cultivars of chickpea are known to differ in seed vigour. Therefore, the main objective of the study was to understand the mechanisms for such vigour differences and to identify the important seed coat and seed related vigour traits that makes the coloured desi seeds more vigorous then unpigmented kabuli seeds.

 

Methodology: Twenty two chickpea genotypes differing in seed coat colour were included in the experiment. Field emergence and electrical conductivity of seed leachate was used as vigour indicator. Hundred-seed weight, proportion of seed coat, laboratory germination, electrical conductivity, water imbibition pattern, tannin, lignin and total phenol content, presence or absence of air space between seed coat and cotyledon and status of hilum-micropylar region were studied to understand the mechanism for vigour differences between pigmented desi and unpigmented kabuli genotypes.

 

Results: Despite a high laboratory germination (>89%) of all cultivars, unpigmented kabuli genotypes recorded low (39-69%) FE then pigmented desi genotypes (64-87%). Rapid rate of water imbibition (111.86-145.09%), lower proportion of seed coat (4.76-6.78%), greater electrical conductivity of seed leachate (49-172 ?S cm-1 g-1), low content of lignin (0.74-2.41), tannin (0.18-1.09 ?g mg-1) and total phenol (1.66-5.58 ?g mg-1) was associated with low field emergence in unpigmented kabuli types. Besides, air space between seed coat and cotyledon, open hilum-micropylar region, less polyphenolic content and low proportion of seed coat potentially describe the rapid water uptake by unpigmented kabuli genotypes making them vulnerable to imbibitional damage. ???

 

Interpretation: Rather than laboratory germination, electrical conductivity may be used as an indicator for determining field emergence in chickpea. Screening/ developing unpigmented kabuli genotypes with seeds having lower rate of water imbibition could be a promising way to enable seed vigour improvement in chickpea.

 

 

Copyright ? 2017 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).