What question did this study set out to answer?

To develop a simple, biologically plausible mathematical framework for accurately predicting the duration from sowing to flowering in annual crops under fluctuating field conditions.

January 1, 1991Experimental Agriculture

Towards the Reliable Prediction of Time to Flowering in Six Annual Crops. I. The Development of Simple Models for Fluctuating Field Environments

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Authors

RSR. J. SummerfieldUniversity of London ΕRΕ. H. RobertsUniversity of Auckland RER. H. EllisUniversity of Reading

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Implication

Modeling study demonstrates linear effects of photoperiod and temperature on flowering rates in annual crops, suggesting simplified and reliable phenology predictions.

Key Points

To develop a simple, biologically plausible mathematical framework for accurately predicting the duration from sowing to flowering in annual crops under fluctuating field conditions.
Analyzed mathematical relationships between environmental variables—specifically photoperiod (P) and temperature (T)—and crop developmental timing.
Formulated a family of photothermal response equations focusing on the rate of progress towards flowering (1/f) rather than time to flowering (f) directly.
Demonstrated that modeling the rate of progress towards flowering (1/f) reveals linear, non-interacting effects of photoperiod and temperature.
Established a response framework with unambiguous parameters and biological limits, simplifying crop phenology modeling across variable environments.

Cite This Study

Summerfield et al. (1991) studied this question.

synapsesocial.com/papers/6a711f0075498292b70a9bbd https://doi.org/10.1017/s0014479700019165

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Implication

Modeling study demonstrates linear effects of photoperiod and temperature on flowering rates in annual crops, suggesting simplified and reliable phenology predictions.

Towards the Reliable Prediction of Time to Flowering in Six Annual Crops. I. The Development of Simple Models for Fluctuating Field Environments

Discussion

Member takes

Implication

Key Points

Cite This Study

Towards the Reliable Prediction of Time to Flowering in Six Annual Crops. I. The Development of Simple Models for Fluctuating Field Environments

Discussion

Member takes

Implication

Key Points

Cite This Study

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