Abstract
Abstract Seaweed extracts are proven to be potent biostimulants due to the presence of wide range of nutrients including mineral like potassium and other macro-micronutrients, plant growth hormones, amino acids, vitamins, glycine betaines and quaternary ammonium compounds in them. In the present study, potassium-rich powders were obtained from some commercially important tropical red seaweeds viz. Kappaphycus alvarezii , Gracilaria salicornia , G. edulis , G. firma and G. heteroclada and Eucheuma spinosum and checked for their biostimulant effect through green gram seedling bioassay study on in vitro using WinRhizo software, and we found that extracts of all species increased the root development at significant level ( p < 0.05 ) as compared to standard nutrient medium. G. salicornia of Indian origin which is naturally available on a commercial level (>1000 t dry per year) was taken for further studies and manufactured 3 variants of potassium-rich biostimulants, viz. concentrated seaweed extract (CSE), potassium-rich water-soluble powder (PSP) and seaweed fortified granule (SFG), and tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants. Based on the results of present study, potassium-rich biostimulant obtained from G. salicornia can be applied to cassava for yield and quality improvement.
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Claims 8
Claim · model-written summary
Seaweed extracts significantly increased green gram root development relative to standard nutrient medium.
- Taxon
- green gram
.jpg?width=60)
Vigna radiata var. radiatae1 - Treatment
- extracts of all speciese0
- Outcome
- root developmente0
- Direction
- increasede0
- Comparator
- standard nutrient mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“extracts of all species increased the root development at significant level ( p < 0.05 ) as compared to standard nutrient medium.”
e1“green gram seedling bioassay study”
Claim · model-written summary
The concentrated seaweed extract (CSE) biostimulant increased cassava tuber yield by 17.40%.
- Taxon
- cassava
Manihot esculentae0 - Treatment
- concentrated seaweed extract (CSE)e0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 17.40%e0
- Comparator
- control plantse0
- Setting
- farmer’s fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manufactured 3 variants of potassium-rich biostimulants, viz. concentrated seaweed extract (CSE), potassium-rich water-soluble powder (PSP) and seaweed fortified granule (SFG), and tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The potassium-rich water-soluble powder (PSP) biostimulant increased cassava tuber yield by 20.09%.
- Taxon
- cassavaManihot esculentae0
- Treatment
- potassium-rich water-soluble powder (PSP)e0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 20.09%e0
- Comparator
- control plantse0
- Setting
- farmer’s fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manufactured 3 variants of potassium-rich biostimulants, viz. concentrated seaweed extract (CSE), potassium-rich water-soluble powder (PSP) and seaweed fortified granule (SFG), and tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The seaweed fortified granule (SFG) biostimulant increased cassava tuber yield by 22.19%.
- Taxon
- cassavaManihot esculentae0
- Treatment
- seaweed fortified granule (SFG)e0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 22.19%e0
- Comparator
- control plantse0
- Setting
- farmer’s fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manufactured 3 variants of potassium-rich biostimulants, viz. concentrated seaweed extract (CSE), potassium-rich water-soluble powder (PSP) and seaweed fortified granule (SFG), and tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The biostimulants produced high cassava starch content.
- Taxon
- cassavaManihot esculentae0
- Treatment
- biostimulante0
- Outcome
- starch contente0
- Direction
- highe0
- Comparator
- control plantse0
- Setting
- farmer’s fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The biostimulants reduced cassava brown streak virus disease incidence.
- Taxon
- cassavaManihot esculentae0
- Treatment
- biostimulante0
- Interactor
- cassava brown streak virusCassava brown streak viruse0pathogen
- Outcome
- incidence of cassava brown streak virus disease (CBSD)e0
- Direction
- lesse0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The biostimulants increased cassava nutrient use efficiency.
- Taxon
- cassavaManihot esculentae0
- Treatment
- biostimulante0
- Outcome
- nutrient use efficiencye0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tested their biostimulant activity on cassava root at farmer’s field and found to increase the tuber yield to 17.40%, 20.09% and 22.19%, respectively, with high starch content, less incidence of cassava brown streak virus disease (CBSD) and increased nutrient use efficiency over control plants.”
Claim · model-written summary
The authors recommend G. salicornia biostimulant for cassava yield and quality.
- Taxon
- cassavaManihot esculentae0
- Treatment
- potassium-rich biostimulant obtained from G. salicorniae0
- Outcome
- yield and quality improvemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium-rich biostimulant obtained from G. salicornia can be applied to cassava for yield and quality improvement.”
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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.