University of Worcester Worcester Research and Publications

Predicting Walnut (Juglans spp.) Crop Yield Using Meteorological and Airborne Pollen Data

Prentović, M., Radišić, P., Smith, Matt ORCID: and Šikoparija, B. (2014) Predicting Walnut (Juglans spp.) Crop Yield Using Meteorological and Airborne Pollen Data. Annals of Applied Biology, 165 (2). pp. 249-259. ISSN 0003-4746 Online: 1744-7348

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Crop yield determines economy by influencing prices on the trade market,and so accurate forecasts of the yield are important for planning various aspects of agricultural production. The main aim of this study is to construct a model for predicting walnut yield in an important walnut production area (the region of Novi Sad in Northern Serbia). Relationships between the amount of walnuts produced annually (2000–2011) and a biotic (e.g. meteorological) and biotic (e.g. airborne pollen data) factors were examined using Pearson correlation analysis. Walnut yield data were then entered into linear regression models with variables that had the highest correlations. The models were constructed using 10 years of data, and tested using 2 years of data not included in constructing the model. This paper has shown that walnut yield is greatly dependent on weather conditions, particularly during fertilisation and seed growth, but the amount of available airborne pollen also plays an important role. The introduction of the seasonal pollen index, as a proxy for the amount of pollen available for fertilisation, improved the performance of models predicting walnut yield.

Item Type: Article
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Uncontrolled Discrete Keywords: aerobiology, nut production, postillate flowers abscission, refression models, yield forecast, agricultural production, seasonal pollen index
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
Divisions: College of Health, Life and Environmental Sciences > School of Science and the Environment
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Depositing User: Karol Kosinski
Date Deposited: 05 Jan 2017 15:26
Last Modified: 08 Sep 2020 04:00

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