Abstract
Tower mounted wind machines raise orchard temperatures largely by the forced mixing of cold orchard air with the warmer air overhead. However, tests in an almond orchard in the Chico area –in 1955 and 1957–showed that the air jet from tower mounted machines had difficulty in penetrating the tree canopy –typical of deciduous orchards–formed by the intertwining of branches of adjacent trees. Underneath the tree canopy deciduous orchards are relatively open but growers report that most frost damage occurs in the lower part of the trees.
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Claims 2
Claim · model-written summary
Air jets from tower-mounted wind machines had difficulty penetrating the almond tree canopy in tests in the Chico area.
- Taxon
- almond
Prunus dulcise1 - Treatment
- tower mounted machinese1
- Outcome
- penetrating the tree canopye1
- Qualifier
- had difficultye1
- Setting
- Chico areae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“However, tests in an almond orchard in the Chico area –in 1955 and 1957–showed that the air jet from tower mounted machines had difficulty in penetrating the tree canopy”
Claim · model-written summary
Growers report that most frost damage in deciduous orchards occurs in the lower part of the trees.
Verbatim
e2“Underneath the tree canopy deciduous orchards are relatively open but growers report that most frost damage occurs in the lower part of the trees”