Abstract
The effect of green alga Chlorella vulgaris cells extract as foliar spray on nutrient status, growth and yield of superior grapevines was studied and compared with micronutrients foliar fertilizer. Application of algal extract at 25 to 100% had an announced effect on percentages of bud burst and fruiting buds rather than the check treatment. The effect was obviously appeared till 50% concentration, while the promotion was slight with using concentrations above 50%. Growth characters namely leaf area, shoot length and number of leaves/shoot were greatly stimulated in response to application of Algal extract at 25 to 100% rather than the check treatment. There was a slight stimulation when using algal extract at concentrations above 50%. A progressive increase on percentages of N, P and K in the leaves was observed as a result of increasing concentration of algal extract till 50% while with concentrations above 50% the increase was slightly appeared. Yield expressed in weight and number of clusters as well as berry weight were gradually improved in response to increasing algal extract concentrations. Using algal extract above 50% had neglectable effect. Therefore, 50% concentration is suggested to be beneficial from economical point of view. Spraying algal extract at 25 to 100% was accompanied with hastening fruit quality compared to the untreated vines. The advancement was corresponded to increase concentrations of algal extract. Slight promotion was detected on fruit quality as a result of using algal extract above 50% which increased TSS, TSS/Acid ratio and total sugars and decreasing total acidity rather than control.
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Claims 8
Claim · model-written summary
Algal extract at 25 to 100% promoted bud burst relative to the check, with little further promotion above 50%.
- Treatment
- algal extract at 25 to 100%e0
- Outcome
- percentages of bud burst and fruiting budse0
- Direction
- promotione0
- Qualifier
- above 50%e0
- Comparator
- check treatmente0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of algal extract at 25 to 100% had an announced effect on percentages of bud burst and fruiting buds rather than the check treatment. The effect was obviously appeared till 50% concentration, while the promotion was slight with using concentrations above 50%.”
t0“Superior Grapevines”
Claim · model-written summary
Algal extract stimulated grapevine leaf area, shoot length, and leaves per shoot relative to the check.
- Treatment
- Algal extract at 25 to 100%e0
- Outcome
- leaf area, shoot length and number of leaves/shoote0
- Direction
- stimulatede0
- Comparator
- check treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth characters namely leaf area, shoot length and number of leaves/shoot were greatly stimulated in response to application of Algal extract at 25 to 100% rather than the check treatment.”
t0“Superior Grapevines”
Claim · model-written summary
Leaf N, P, and K percentages rose as algal extract concentration increased to 50%, with little rise above it.
- Treatment
- algal extracte0
- Outcome
- percentages of N, P and K in the leavese0
- Direction
- increasee0
- Qualifier
- till 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A progressive increase on percentages of N, P and K in the leaves was observed as a result of increasing concentration of algal extract till 50% while with concentrations above 50% the increase was slightly appeared.”
t0“Superior Grapevines”
Claim · model-written summary
Cluster weight and number and berry weight improved with increasing algal extract concentration.
- Treatment
- algal extract concentrationse0
- Outcome
- weight and number of clusters as well as berry weighte0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield expressed in weight and number of clusters as well as berry weight were gradually improved in response to increasing algal extract concentrations.”
t0“Superior Grapevines”
Claim · model-written summary
Algal extract hastened fruit quality relative to untreated vines.
- Treatment
- Spraying algal extract at 25 to 100%e0
- Outcome
- fruit qualitye0
- Direction
- hasteninge0
- Comparator
- untreated vinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying algal extract at 25 to 100% was accompanied with hastening fruit quality compared to the untreated vines.”
t0“Superior Grapevines”
Claim · model-written summary
Algal extract above 50% increased TSS, TSS/Acid ratio, and total sugars relative to control.
- Treatment
- algal extract above 50%e0
- Outcome
- TSS, TSS/Acid ratio and total sugarse0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Slight promotion was detected on fruit quality as a result of using algal extract above 50% which increased TSS, TSS/Acid ratio and total sugars and decreasing total acidity rather than control.”
t0“Superior Grapevines”
Claim · model-written summary
Algal extract above 50% decreased total acidity relative to control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using algal extract above 50% which increased TSS, TSS/Acid ratio and total sugars and decreasing total acidity rather than control”
t0“Superior Grapevines”
Claim · model-written summary
The authors recommend 50% algal extract for economic benefit.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, 50% concentration is suggested to be beneficial from economical point of view.”
t0“Superior Grapevines”
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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.