The effect of foliar applications on the grapevine (Vitis vinifera L.) leaf Chlorophyll content and light transMittance : preliminary results

Bodor-Pesti, Péter and Zsófia, Schnörch and Németh, Erzsébet Krisztina and Hüvely, Attila and Gyula, Váradi and Deák, Tamás and Varga, Zsuzsanna and Luca, Masiero and Nyitrainé Sárdy, Diána (2025) The effect of foliar applications on the grapevine (Vitis vinifera L.) leaf Chlorophyll content and light transMittance : preliminary results. GRADUS, 12 (1). ISSN 2064-8014

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Abstract

In this study, the effect of different foliar applications on the grapevine (Vitis vinifera L. cv. Riesling) leaf morphology was investigated. Leaf chlorophyll content was measured with an Apogee MC100 portable chlorophyllmeter, leaf thickness was investigated with a thickness gauge while the light transmittance was evaluated with a smartphone application running on a Xiaomi Redmi Note 9. Results showed that foliar applications have a significant effect on the leaf morphological traits. According to the correlation analysis of pooled samples, there is no significant relation between the monitored parameters. Interestingly if samples are split according to the applied treatments, we found a correlation between the measured traits that highlight the impact of the foliar application on the morphological characteristics. Our present research demonstrates that smartphones can be effectively integrated into agricultural studies and provide data that can complement observations.

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