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Optimizing seed quality during germplasm regeneration in pearl millet

OAR@ICRISAT

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Relation http://oar.icrisat.org/6426/
http://dx.doi.org/10.1023/A:1014796825318
 
Title Optimizing seed quality during germplasm regeneration in pearl millet
 
Creator Rao, N K
Bramel, P J
Reddy, K N
Singh, S D
Girish, A G
Rao, S A
Mahalakshmi, V
 
Subject Millets
 
Description The effect of water stress during flowering and grain filling on seed longevity was studied in three pearl millet genotypes,ICTP-8202, ICTP-8203 and MBH-110. The seeds were produced by three pollination methods; open pollination, selfing(individual panicles enclosed in paper bags), and cluster bagging (panicles from 3–4 adjacent plants enclosed in a paper bag), stored in air-tight plastic bottles underambient conditions (20–40 °C,30–80%RH) and germination was tested at 12-month'sintervals. The seeds lost germination completely after six years ofstorage in all treatments. Analysis of variance of the estimates of potential seed longevity (i.e. the seed lot constantK i of the seed viabilityequation) showed significant effects of water stress andpollination method (P < 0.01). The interaction between irrigation treatment and method of pollination control was also significant (P < 0.05). Averaged over genotypes and pollination methods,potential longevity was greatest(K i = 2.8) in theirrigated control, and averaged over genotypes and irrigationtreatments, it was greatest (K i= 3.1) in seeds produced by open pollination. Theimplications of these results were discussed in relation to germplasmseed production
 
Publisher Kluwer Academic
 
Date 2002
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/6426/1/GeneticResourcesandCropEvolution_49_2_153-157_2002.pdf
Rao, N K and Bramel, P J and Reddy, K N and Singh, S D and Girish, A G and Rao, S A and Mahalakshmi, V (2002) Optimizing seed quality during germplasm regeneration in pearl millet. Genetic Resources and Crop Evolution, 49 (2). pp. 153-157. ISSN 0925-9864