caa a22 4500 477134815 CHVBK 20180405111714.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002944802079 doi (NATIONALLICENCE)springer-10.1023/A:1002944802079 Environmental and genetic regulation of flowering of tropical annual crops [Elektronische Daten] [R.J. Summerfield, R.H. Ellis, P.Q. Craufurd, Q. Aiming, E.H. Roberts, T.R. Wheeler] Phenology (i.e. the influence of environment on ontogeny) is the most important single factor influencing crop adaptation. The timing of flowering is particularly important since it largely determines when annual cereal, pulse and oilseed crops will subsequently be ripe for harvest. Two environmental factors are of overriding importance in the induction of flowering - photoperiod (daylength) and temperature. In seeking to predict times from sowing to flowering, f, it has proved profitable to analyse photothermal responses in terms of the rate of progress from sowing to flowering, 1/f. This paper summarises the advantages of a model based on rates rather than the traditional approach based on f. Over a wide range of photothermal regimes, the model involves just six coefficients, all of which (and their derivatives) have clearly defined biological meaning. Of paramount importance too is that the coefficients are not affected by the environment; they are genetic characters which determine phenotypic responses to the environment in a quantitative and predictable way. Kluwer Academic Publishers, 1997 adaptation nationallicence flowering nationallicence genetic characterisation nationallicence photothermal responses nationallicence Summerfield R.J. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Ellis R.H. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Craufurd P.Q. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Aiming Q. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Roberts E.H. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Wheeler T.R. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 83-91 0014-2336 96:1<83 1997 96 10681 https://doi.org/10.1023/A:1002944802079 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002944802079 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Summerfield R.J. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 700 1- Ellis R.H. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 700 1- Craufurd P.Q. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 700 1- Aiming Q. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 700 1- Roberts E.H. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 700 1- Wheeler T.R. Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, RG2 9AD, Reading, U.K aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 83-91 0014-2336 96:1<83 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer