Abstract
Abstract Knowledge about the nutritional balance at the initial phenological stage is mandatory to overcome limitations on nutritional availabilities required by the plant species. However, little is elucidated about nitrate (NO3-) and ammonium (NH4+) deprivation stress. Our hypothesis tested is that there are benefits of the foliar application (spray) of molybdenum (Mo) and cobalt (Co) under different availabilities (ionic strength, IS) from the presence of nitric sources (CaNO32-) and absence of ammonium (NH4H2PO4) in root application (hydroponic cultivation) at the initial phenological growth stage. Nutrient supply was carried out with a nutrient solution, which is deprived of NH4+. Treatments were 25%, 50%, and 100% IS, supplied via hydroponic cultivation, combined with the absence/presence of Co/Mo spray. Plants were randomly distributed into 17 blocks (replicates) with 6 treatments conducted in a factorial scheme and data were analyzed by ANOVA and ANCOVA. We observed that Co/Mo spray diminished plant growth discrepancies between treatments at different IS’s. In addition, contents of photosynthetic pigments were higher at 25% IS without Co/Mo spray. Thus, we concluded that Mo and Co spray can alleviate NO3- starvation/NH4+ deprivation stress during the initial growth phenological stages of yellow passion fruits.
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Claims 2
Claim · model-written summary
Co/Mo foliar spray diminished plant growth discrepancies between nutrient treatments at different ionic strengths in yellow passion fruit.
- Taxon
- yellow passion fruitse2
- Treatment
- Co/Mo spraye1
- Outcome
- plant growth discrepancies between treatmentse1
- Direction
- diminishede1
- Qualifier
- at different ISe1
Not reportedComparator
Verbatim
e1“Co/Mo spray diminished plant growth discrepancies between treatments at different IS”
e2“during the initial growth phenological stages of yellow passion fruits”
Claim · model-written summary
Contents of photosynthetic pigments were higher in yellow passion fruit at 25% ionic strength without Co/Mo spray.
- Taxon
- yellow passion fruitse2
- Treatment
- 25% ISe1
- Outcome
- contents of photosynthetic pigmentse1
- Direction
- highere1
- Qualifier
- without Co/Mo spraye1
Not reportedComparator
Verbatim
e1“contents of photosynthetic pigments were higher at 25% IS without Co/Mo spray”
e2“during the initial growth phenological stages of yellow passion fruits”
The same questions in other papers
application · growth · Passiflora edulis (passion fruit)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →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.