Abstract
This investigation was carried out during two successive seasons (2019 & 2020), to study effect of some natural sources for Anti-stress compounds namely: Chitosan at (100 ppm), Ascorbic acid at (100 ppm), Prolin at (30 ppm) and Vitamin E at (50 ppm) as foliar applications on Washington Navel orange trees for elucidating their effects on tree vegetative growth & physiological performance, initial fruit set & retention and yield & fruit quality which grown Ehnasia restrict / "Beni- Suief" Governorate conditions. Experimental treatments were spraying at three times at the 1st weeks of : May, July & September for two seasons. Results indicated that, all the natural sources for Anti-stress compounds positively improved Washington navel orange tree (growth & physiological performance, initial fruit set & retention and yield as :a number & weight & fruit quality. Whereas, Chitosan compound has a superior effect with significant difference on the above parameters, when compared to other treatments under this study for both seasons. Moreover, anti-stresses compounds under study could be arranged Chitosan, Ascorbic acid, Prolin and Vitamin E respect., as for their effetivness.
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Claims 6
Claim · model-written summary
Chitosan improved Washington navel orange growth and physiological performance.
- Taxon
- Washington navel orange treee0
- Treatment
- Chitosane1
- Outcome
- growth & physiological performancee0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“all the natural sources for Anti-stress compounds positively improved Washington navel orange tree (growth & physiological performance, initial fruit set & retention and yield as :a number & weight & fruit quality”
e1“Chitosan at (100 ppm)”
Claim · model-written summary
Ascorbic acid improved Washington navel orange initial fruit set and retention.
- Taxon
- Washington navel orange treee0
- Treatment
- Ascorbic acid at (100 ppm)e1
- Outcome
- initial fruit set & retentione0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“all the natural sources for Anti-stress compounds positively improved Washington navel orange tree (growth & physiological performance, initial fruit set & retention and yield as :a number & weight & fruit quality”
e1“Ascorbic acid at (100 ppm)”
Claim · model-written summary
Prolin improved Washington navel orange yield by fruit number and weight.
- Taxon
- Washington navel orange treee0
- Treatment
- Prolin at (30 ppm)e1
- Outcome
- yield as :a number & weighte0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“all the natural sources for Anti-stress compounds positively improved Washington navel orange tree (growth & physiological performance, initial fruit set & retention and yield as :a number & weight & fruit quality”
e1“Prolin at (30 ppm)”
Claim · model-written summary
Vitamin E improved Washington navel orange fruit quality.
- Taxon
- Washington navel orange treee0
- Treatment
- Vitamin E at (50 ppm)e1
- Outcome
- fruit qualitye0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“all the natural sources for Anti-stress compounds positively improved Washington navel orange tree (growth & physiological performance, initial fruit set & retention and yield as :a number & weight & fruit quality”
e1“Vitamin E at (50 ppm)”
Claim · model-written summary
Chitosan was significantly superior to the other treatments across the reported parameters in both seasons.
Verbatim
e0“Chitosan compound has a superior effect with significant difference on the above parameters, when compared to other treatments under this study for both seasons”
t0“Washington Navel Orange Tree”
Claim · model-written summary
The compounds ranked Chitosan, Ascorbic acid, Prolin and Vitamin E for effectiveness.
Verbatim
e0“anti-stresses compounds under study could be arranged Chitosan, Ascorbic acid, Prolin and Vitamin E respect., as for their effetivness”
t0“Washington Navel Orange Tree”
The same questions in other papers
chitosan · growth · Citrus sinensis (sweet orange)Results differ
1 in the opposite direction
- no effect
proline · yield · Citrus sinensis (sweet orange)Results agree
1 paper in the same direction as this paper
- positive
ascorbic acid · yield · Citrus sinensis (sweet orange)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.