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Environmental Modulation of Flowering in Mung Bean (Vigna radiata): a Reappraisal

Published online by Cambridge University Press:  03 October 2008

R. J. Summerfield  and
R. J. Lawn
R. J. Summerfield
Affiliation:
CSIRO Division of Tropical Crops and Pastures, The Cunningham Laboratory, 306 Carmody Road, St Lucia, Queensland 4067, Australia
R. J. Lawn
Affiliation:
CSIRO Division of Tropical Crops and Pastures, The Cunningham Laboratory, 306 Carmody Road, St Lucia, Queensland 4067, Australia
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Summary

The phenology of mung beans is extremely plastic; responsiveness to both photoperiod and temperature is known to modulate flowering. A previous conclusion, perpetuated uncritically now for almost forty years, has been that both (quantitative) short- and long-day flowering responses exist in the mung bean germplasm. However, our re-analysis of the original data leads us to an alternative conclusion: that genotypes of mung bean are quantitative short-day plants with different optimum mean diurnal temperatures for flowering. This alternative interpretation (which is plausible biologically and in evolutionary terms) is discussed.

Type
Research Article
Information
Experimental Agriculture , Volume 23 , Issue 4 , October 1987 , pp. 461 - 470
Copyright
Copyright © Cambridge University Press 1987

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