Abstract
In both laboratory and field experiments, excessive pollen has been found to be a major cause of pistillate flower abscission (PFA) and reduced yields of sensitive English Walnut cultivars (CVs) (especially “Serr”). In the field, PFA and reduced yields develop when substantial overlap of male and female walnut bloom occurs. PFA and poor yields can be further aggravated when pollenizing CV's have been included into an orchard to maximize pollen availability for the commercial CV Field experiments, conducted in 1992 and 1993, demonstrated that mechanically shaking trees to remove male flowers pre-bloom from either pollenizer CV's or the main CV reduced pollen load, PFA, and substantially improved yields.
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Claims 7
Claim · model-written summary
Excess pollen caused pistillate flower abscission.
- Taxon
- English Walnut
Juglans regiat0 - Treatment
- excessive pollene0
- Outcome
- pistillate flower abscissione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive pollen has been found to be a major cause of pistillate flower abscission (PFA)”
t0“ENGLISH WALNUT”
Claim · model-written summary
Excess pollen reduced yields.
- Taxon
- English WalnutJuglans regiat0
- Outcome
- yieldse0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive pollen has been found to be a major cause of pistillate flower abscission (PFA) and reduced yields”
t0“ENGLISH WALNUT”
Claim · model-written summary
Male and female bloom overlap led to PFA and reduced yield.
Verbatim
e0“PFA and reduced yields develop when substantial overlap of male and female walnut bloom occurs”
Claim · model-written summary
Pollenizer cultivars aggravated PFA and poor yields.
- Taxon
- English WalnutJuglans regiat0
- Outcome
- PFA and poor yieldse0
- Direction
- aggravatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PFA and poor yields can be further aggravated when pollenizing CV's have been included into an orchard”
t0“ENGLISH WALNUT”
Claim · model-written summary
Shaking trees reduced pollen load.
- Taxon
- English WalnutJuglans regiat0
- Treatment
- mechanically shaking treese0
- Outcome
- pollen loade0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanically shaking trees to remove male flowers pre-bloom from either pollenizer CV's or the main CV reduced pollen load, PFA, and substantially improved yields”
t0“ENGLISH WALNUT”
Claim · model-written summary
Shaking trees reduced PFA.
- Taxon
- English WalnutJuglans regiat0
- Treatment
- mechanically shaking treese0
- Outcome
- PFAe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanically shaking trees to remove male flowers pre-bloom from either pollenizer CV's or the main CV reduced pollen load, PFA, and substantially improved yields”
t0“ENGLISH WALNUT”
Claim · model-written summary
Shaking trees substantially improved yields.
- Taxon
- English WalnutJuglans regiat0
- Treatment
- mechanically shaking treese0
- Outcome
- yieldse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanically shaking trees to remove male flowers pre-bloom from either pollenizer CV's or the main CV reduced pollen load, PFA, and substantially improved yields”
t0“ENGLISH WALNUT”