Abstract
Environmental conditions and the seasonal patterns of dry matter (energy) production and allocation by six maize hybrids were monitored on a commercial farm site in a region with a temperate maritime climate. Piecewise-linear models, consisting of growth and plateau phases, were developed to represent the observed variation in leaf area and dry matter accumulation in leaf, stem, sheath and ear of each hybrid. The variation in efficiency of solar energy conversion by each hybrid was determined. Efficiencies of 2.3% for full canopies of the best hybrids at mid-season were approximately equal to a theoretical limit estimated for maize under favorable growth conditions at Stewiacke. Efficiency near the end of the season was less than expected; this was attributed mainly to ear growth rates of 13 g m−2 day−1 which were somewhat less than the values of 20 g m−2 day−1 commonly recorded for maize crops.
Publisher
Canadian Science Publishing
Subject
Horticulture,Plant Science,Agronomy and Crop Science
Cited by
4 articles.
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