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“A Biometeorological Time Scale for Cereal Crop Involving Day and Night Temperatures and Photoperiod” by George W. Robertson, International Journal of Biometeorology (1968) 12:191–223
Author(s) -
Sinclair Thomas R.
Publication year - 2018
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci2018.05.0289
Subject(s) - biology , pace , photoperiodism , ecophysiology , crop , george (robot) , scale (ratio) , agronomy , botany , history , photosynthesis , physics , geodesy , quantum mechanics , art history , geography
This article is part of a series of brief commentaries to highlight papers that have resulted in important and distinctly new perspectives in crop science. A criterion for the selection of papers is that they must have been published at least 20 yr ago to allow for a long‐range perspective in assessment of the papers. The current article briefly reviews the paper by George Robertson published in 1968 that provided key concepts used yet today to describe the pace of plant development. Robertson developed the ideas of normalized development rates for each ontogenetic stage, multiplication of temperature and photoperiod responses, and inclusion of base temperature and photoperiod parameters in the response functions.