Abstract
A field experiment was conducted, June 2009 to study the effects of foliar applications of different concentrations of seaweed extract of Ulva lactuca (Ulvaceae)and Gracilaria dendroides (Gracilariaceae) on nutrient uptake, growth and yield of sunflower plant. There were five treatment control and two concentration 0.4 and 0.6 % w/v from each algal extract, this treatment applied at 3 times; first one at the seedling stage (20 days after sowing), the second at the flowering stage (40 days after sowing), while the third one before yield stage (70 days after sowing). Application of algal extract significantly increase fresh and dry weight of root and shoot, chlorophyll a, chlorophyll b and carotenoids rather than the control, especially with 0.6% extract of G. dendroides. At harvest stage, application of seaweed significantly increase both root and shoot fresh and dry weight, plant height, head diameter, seed index (weight of 1000 seed), seed yield as compared to control. Also, the highest growth parameters were observed in plant treated by 0.6% extract of G. dendroides, except plant height. Highest oil content was observed at 0.6 % G. dendroides extract, followed with 0.6% U. lactuca extract application (34.05 and 30.55%, respectively). The application of extract of 0.4 % and 0.6 % for both studied algae significantly increased seed yield of sunflower by 20.94, 40.31, 30.29 and 28.73%, respectively, compared to control. Improved nutrient uptake (Na and K) was also observed with seaweed extract applications. Thus, foliar applications of seaweed extracts could be a promising option for yield enhancement and high oil yield production of sunflower plant.
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Claims 13
Claim · model-written summary
Algal extract increased root and shoot fresh and dry weight.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- algal extracte0
- Outcome
- fresh and dry weight of root and shoote0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of algal extract significantly increase fresh and dry weight of root and shoot”
t0“SUNFLOWER”
Claim · model-written summary
Algal extract increased chlorophyll a, chlorophyll b and carotenoids.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- algal extracte0
- Outcome
- chlorophyll a, chlorophyll b and carotenoidse0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of algal extract significantly increase fresh and dry weight of root and shoot, chlorophyll a, chlorophyll b and carotenoids rather than the control”
t0“SUNFLOWER”
Claim · model-written summary
At harvest, seaweed extract increased plant height, head diameter and seed index.
- Taxon
- SUNFLOWERHelianthus annuust0
- Organ / stage
- harvest stagee0
- Treatment
- seaweede0
- Outcome
- plant height, head diameter, seed indexe0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At harvest stage, application of seaweed significantly increase both root and shoot fresh and dry weight, plant height, head diameter, seed index (weight of 1000 seed), seed yield as compared to control”
t0“SUNFLOWER”
Claim · model-written summary
At harvest, seaweed extract increased seed yield.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- seaweede0
- Outcome
- seed yielde0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of seaweed significantly increase both root and shoot fresh and dry weight, plant height, head diameter, seed index (weight of 1000 seed), seed yield as compared to control”
t0“SUNFLOWER”
Claim · model-written summary
The 0.6% Gracilaria dendroides extract gave the highest growth parameters apart from height.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- 0.6% extract of G. dendroidese0
- Outcome
- growth parameterse0
- Direction
- higheste0
- Qualifier
- except plant heighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest growth parameters were observed in plant treated by 0.6% extract of G. dendroides, except plant height”
t0“SUNFLOWER”
Claim · model-written summary
The 0.6% G. dendroides extract produced 34.05% oil content, the highest reported.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- 0.6 % G. dendroides extracte0
- Outcome
- oil contente0
- Direction
- Higheste0
- Value
- 34.05e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest oil content was observed at 0.6 % G. dendroides extract, followed with 0.6% U. lactuca extract application (34.05 and 30.55%, respectively)”
t0“SUNFLOWER”
Claim · model-written summary
The 0.6% U. lactuca extract produced 30.55% oil content.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- 0.6% U. lactuca extract applicatione0
- Outcome
- oil contente1
- Direction
- followede0
- Value
- 30.55%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed with 0.6% U. lactuca extract application (34.05 and 30.55%, respectively)”
e1“Highest oil content was observed at 0.6 % G. dendroides extract”
t0“SUNFLOWER”
Claim · model-written summary
The 0.4 % Ulva extract increased seed yield by 20.94%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- extract of 0.4 %e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 20.94e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of extract of 0.4 % and 0.6 % for both studied algae significantly increased seed yield of sunflower by 20.94, 40.31, 30.29 and 28.73%, respectively, compared to control”
Claim · model-written summary
The 0.6 % Ulva extract increased seed yield by 40.31%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 0.6 %e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 40.31e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of extract of 0.4 % and 0.6 % for both studied algae significantly increased seed yield of sunflower by 20.94, 40.31, 30.29 and 28.73%, respectively, compared to control”
Claim · model-written summary
The 0.4 % Gracilaria extract increased seed yield by 30.29%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- extract of 0.4 %e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 30.29e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of extract of 0.4 % and 0.6 % for both studied algae significantly increased seed yield of sunflower by 20.94, 40.31, 30.29 and 28.73%, respectively, compared to control”
Claim · model-written summary
The 0.6 % Gracilaria extract increased seed yield by 28.73%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 0.6 %e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 28.73%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of extract of 0.4 % and 0.6 % for both studied algae significantly increased seed yield of sunflower by 20.94, 40.31, 30.29 and 28.73%, respectively, compared to control”
Claim · model-written summary
Seaweed extracts improved sodium and potassium uptake.
- Taxon
- SUNFLOWERHelianthus annuust0
- Treatment
- seaweed extract applicationse0
- Outcome
- nutrient uptake (Na and K)e0
- Direction
- Improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Improved nutrient uptake (Na and K) was also observed with seaweed extract applications”
t0“SUNFLOWER”
Claim · model-written summary
The authors proposed seaweed sprays for enhanced sunflower yield and oil production.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- foliar applications of seaweed extractse0
- Outcome
- yield enhancement and high oil yield productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar applications of seaweed extracts could be a promising option for yield enhancement and high oil yield production of sunflower plant”
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See all 18 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.