Apple Sunburn Risk Detection—A Simple Model for Agricultural Decision Making and Some Fruit Temperature Measurements

نویسندگان

چکیده

Abstract As a response to strong radiative heating, the fruit temperature of apples may rise significantly above air temperature. This result in damage skin tissue and epidermal hypodermal cell layers. To avoid economic losses induced by sunburn symptoms on skin, apple growers need forecasts temperature, which will allow them organize sun-protection measures time. The temperatures detached apples, had been exposed incident radiation wind, were measured order quantify extent heating under climate conditions northern Germany. On average, daily maximum sunlit south side during selected sunny warm days about 7 °C However, more than 40 (the predefined warning threshold) rarely detected, indicating that is still an uncommon phenomenon Maximum apple-core average 4 higher ambient air. Based energy balance principles, simple model has developed predict diurnal cycle sky- ground-facing hemispherical temperatures. Focusing growers’ needs, maxima modeled sky-facing hemisphere compared with side, resulting mean absolute error (MAE) 1.7 °C. Comparison between total sphere core provided better correlations (MAE = 0.8 °C).

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ژورنال

عنوان ژورنال: Erwerbs-obstbau

سال: 2021

ISSN: ['0014-0309', '1439-0302']

DOI: https://doi.org/10.1007/s10341-021-00544-y