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Annals of Botany 82: 691-694, 1998
© 1998 Annals of Botany Company

COMMUNICATION

Seed Viability Constants for Groundnut

R. USBERTI and R. B. R. GOMES

Central Seed Testing Laboratory, CATI, Caixa Postal 1291, CEP 13.073-001, Campinas, SP, Brazil

March 10, 1998 ; April 28, 1998 . July 13, 1998 .

ABSTRACT

This research determined constants for a viability equation to predict the longevity of groundnut seeds and to improve the management of seedlot storage throughout the trading period. Seeds of the Brazilian cultivar ‘Tatu’ (Valencia bunch type) were tested. Nine moisture content levels (ranging from 2.4 to 12.8%) and three storage temperatures (40, 50 and 65 °C) were used. Sub-samples for each moisture content-storage temperature combination were sealed in laminated aluminium-foil packets and stored in incubators until complete survival curves were obtained. A reliable equation was obtained to predict groundnut seed longevity through the constantsKE=6.177,CW=3.426,CH=0.0304 andCQ=0.000453.Copyright 1998 Annals of Botany Company

Arachis hypogaeaL., seed longevity, seed storage, viability equation.


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