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An easy way to assess photoperiod sensitivity in sorghum: Relationships of the vegetative-phase duration and photoperiod sensitivity

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Relation http://oar.icrisat.org/2563/
 
Title An easy way to assess photoperiod sensitivity in sorghum: Relationships of the vegetative-phase duration and photoperiod sensitivity
 
Creator Clerget, B
Rattunde, H F W
Dagnoko, S
Chantereau, J
 
Subject Sorghum
 
Description Sorghum (Sorghum bicolor) landrace varieties show very
large variation for the duration of their vegetative phase,
ranging from 50 to 300 days depending on the sowing
date (Miller et al. 1968). This variation is linked with the
duration of the rainy season in their place of origin
(Curtis 1968). Late sorghum varieties are known to be
highly photoperiod-sensitive and, for a given variety, the
flowering date remains more or less constant independent
of sowing dates, which in the tropical areas of the
northern hemisphere occur anytime between May and
July. Even though the importance of matching sorghum
flowering date to the end of the rainy season has long
been known, relatively little has been done to improve
these photoperiod-sensitive varieties until the past
decade. The lack of new, improved sorghum varieties
able to respond to the increased soil fertility in cotton
(Gossypium spp) systems of Burkina Faso and Mali has
most recently raised the need for this type of research,
and breeding programs are currently addressing this
objective (Bazile et al. 2003).
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/2563/1/An_easy_way_to_assess_photoperiod.pdf
Clerget, B and Rattunde, H F W and Dagnoko, S and Chantereau, J (2007) An easy way to assess photoperiod sensitivity in sorghum: Relationships of the vegetative-phase duration and photoperiod sensitivity. Journal of SAT Agricultural Research, 3 (1). pp. 1-3.