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Determine whether incorporating soil water content into thermal time calculations improves predictions of flowering time and post-flowering frost risk in chickpea and wheat.

May 17, 2019Scientific ReportsOpen Access

Accounting for soil moisture improves prediction of flowering time in chickpea and wheat

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Determine whether incorporating soil water content into thermal time calculations improves predictions of flowering time and post-flowering frost risk in chickpea and wheat.
Adjusted daily thermal time accumulation using fractional available soil water within the 0–60 cm soil layer.
Compared flowering time predictions from the soil moisture-adjusted model against standard models driven solely by temperature and photoperiod.
Evaluated model accuracy by correlating simulated post-flowering frost events with observed variation in chickpea yield.
Adjusting thermal time accumulation for fractional available soil water in the 0–60 cm depth improved flowering time predictions for both chickpea and wheat compared to temperature-photoperiod models.
Post-flowering frost events explained 66% of the variation in observed chickpea yield under the soil-water-adjusted model, compared to 24% under the temperature-photoperiod model.

Authors

YCY. S. ChauhanUniversity of Delhi MRMerrill RyanNew South Wales Department of Primary Industries SCSubhash ChandraSwami Keshwanand Rajasthan Agricultural University

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Implication

Simulation study demonstrates that adjusting thermal time with topsoil moisture improves flowering time prediction in chickpea and wheat, highlighting its value for abiotic stress assessment.

Cite This Study

Chauhan et al. (2019) studied this question.

synapsesocial.com/papers/6aaa4813790c8f2d4e830cef https://doi.org/10.1038/s41598-019-43848-6

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Implication

Simulation study demonstrates that adjusting thermal time with topsoil moisture improves flowering time prediction in chickpea and wheat, highlighting its value for abiotic stress assessment.

Accounting for soil moisture improves prediction of flowering time in chickpea and wheat

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Discussion

Implication

Cite This Study

Accounting for soil moisture improves prediction of flowering time in chickpea and wheat

Key Points

Discussion

Implication

Cite This Study

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