Articles

Water use of sweet cherry under protected cropping systems

Article number
1346_14
Pages
109 – 114
Language
English
Abstract
Protected cropping systems (PCS) eliminate cracking of cherries caused by late season rainfall events; however, little is understood about how new modified environments created by vented PCS affect growing systems.
The objective of this study was to investigate the mesoclimates created by PCS and its effects on tree water use (TWU) compared to standard practice of bird exclusion netting.
During the 2019/20 season, weather stations and sap flow sensors were set up in both a rain-covered and netted block of ‘Lapins’ on Colt rootstock trained as a Spanish Bush.
Climate data (temperature, relative humidity, solar radiation) and sap flow measurements were taken every 30 min over the growing season.
Average daily temperature and minimum RH levels were consistently higher under the covers (14.7°C and 55.4%) compared to netted (13.9°C and 51.9%). Solar radiation was reduced under the covered (12.9 MJ m-2 day‑1) relative to the netted (13.9 MJ m-2 day‑1) block.
Average daily TWU across the growing season was 3.87 L day‑1 for trees under rain covers compared to 12.15 L day‑1 for trees under netting.
The findings of this study will inform grower irrigation practices in the future.

Publication
Authors
C.H. Stone, D.C. Close, S.A. Bound, I. Goodwin
Keywords
sap flow, growing systems, climate, modified environment
Full text
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