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Article

Pilot Study to Evaluate Performance of Frost-Yuzu Fruit Trees under Protected Cultivation

1
Fruit Research Institute, Jeollanam-do Agricultural Research & Extension Services, Hae-nam 59021, Korea
2
Department of Horticulture, Daegu Catholic University, Gyeongsan-si 38430, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Theocharis Chatzistathis, Ioannis E. Papadakis, Thomas Sotiropoulos and Victor Kavvadias
Agriculture 2021, 11(7), 660; https://doi.org/10.3390/agriculture11070660
Received: 7 June 2021 / Revised: 9 July 2021 / Accepted: 12 July 2021 / Published: 13 July 2021
(This article belongs to the Special Issue Organic Management and Productivity of Tree Crops)
This study was initiated to observe the performance of yuzu (Citrusjunos Sieb. ex Tanaka) fruit trees when affected by a late freezing in 2018 and to evaluate the recovery of frost-damaged trees during post management under protected cultivation. A—4.9 °C of minimum daily temperature and 40-day drought occurred during dormancy, which then received heavy precipitation between early- and mid-March, with 15 m s−1 more than maximum instantaneous wind speeds frequently observed. This resulted in observed decreases in height, width and volume as well as in fruiting, fruit weight and yield, as well as yield index in 60–90% defoliated yuzu trees, in addition to higher rates of shoot dieback compared to trees that experienced only 0–30% defoliation. Lower performance and recovery rates of trees grown on flat land compared to trees on sloped land were also observed. Tree and net windbreaks did not significantly affect tree vegetative growth and fruit productivity but were found to have lowered shoot mortality in 2018 and 2019. Mulch with an irrigation after freezing or foliar urea application was shown to effectively increase vegetative tree growth and fruit productivity and reduce shoot mortality. View Full-Text
Keywords: freezing; mulch; slope; windbreak; yuzu freezing; mulch; slope; windbreak; yuzu
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MDPI and ACS Style

Kim, B.-S.; Lee, B.-B.; Jung, S.-K.; Choi, H.-S. Pilot Study to Evaluate Performance of Frost-Yuzu Fruit Trees under Protected Cultivation. Agriculture 2021, 11, 660. https://doi.org/10.3390/agriculture11070660

AMA Style

Kim B-S, Lee B-B, Jung S-K, Choi H-S. Pilot Study to Evaluate Performance of Frost-Yuzu Fruit Trees under Protected Cultivation. Agriculture. 2021; 11(7):660. https://doi.org/10.3390/agriculture11070660

Chicago/Turabian Style

Kim, Byeong-Sam, Bo-Bae Lee, Seok-Kyu Jung, and Hyun-Sug Choi. 2021. "Pilot Study to Evaluate Performance of Frost-Yuzu Fruit Trees under Protected Cultivation" Agriculture 11, no. 7: 660. https://doi.org/10.3390/agriculture11070660

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