Claim · model-written summary
Foliar application of low-biuret urea during or at the end of a minimal stress treatment increased leaf ammonia content in Washington navel orange.
- Taxon
- Citrus sinensis
Citrus sinensise0 - Material
- Washington navel orangee0
- Treatment
- foliar application of low-biuret ureae1
- Outcome
- leaf ammonia contente1
- Direction
- increasede1
- Qualifier
- during or at the end of a minimal stress treatmente1
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A cause and effect relationship between tree ammonia status and floral intensity was established for Citrus sinensis L. cv. Washington navel orange”
e1“Artificially raising tree ammonia content by foliar application of low-biuret urea during or at the end of a minimal stress treatment increased leaf ammonia content and both the number of floral shoots and flowers per shoot, but did not increase vegetative shoot production”
Title
Anwar G. Ali; Yusheng Zheng; Oded Sagee; et al. HortScience 1993. doi:10.21273/hortsci.28.5.559f
Other claims from this paper (7)
- Intervention effect Foliar application of low-biuret urea during or at the end of a minimal stress treatment increased the number of floral shoots and flowers per shoot in Washington navel orange.
- Intervention effect Foliar application of low-biuret urea during or at the end of a minimal stress treatment did not increase vegetative shoot production in Washington navel orange.
- Observation Apical flowers initiated under stress showed maximum tissue concentrations of ammonia and putrescine and arginine pathway activity one week after the end of the stress treatment.
- Association Ammonia, putrescine and arginine pathway activity all decreased in parallel as flowers developed through petal fall.
- Intervention effect Winter foliar application of low-biuret urea before or during flower initiation increased yield by about one packing carton (17 kg) per tree in three successive years without reducing fruit size.
- Recommendation Winter application of low-biuret urea was cost effective for Washington navel orange.
- Intervention effect Foliar application of low-biuret urea during early bloom increased ovary putrescine content and fruit set.