International Sugar Journal

Effect of the germination threshold temperature on the geographical distribution of the variety R583  in Reunion Island* [Full subscriber]

Abstract   In Reunion Island, new sugarcane commercial varieties selected for constrained environments, particularly with regard to low temperatures, have demonstrated their better adaptability by producing more biomass in the high-lying parts of the island. The germination dynamics of populations of single bud setts were studied and characterized in growth chambers for three contrasting varieties at different constant temperatures. The emergence of setts as a function of time is faster and more complete for the variety R583, which is known to be better adapted to low temperatures than for R570 and R577. Does the variety R583 selected under temperature constrained environment performs…

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