Abstract
Engineered nanomaterials have increased for their positive impact in improving many sectors of economy including agriculture. Silver nanoparticles (AgNPs) have been implicated nowadays to enhance seed germination, plant growth, improvement of photosynthetic quantum efficiency and as antimicrobial agents to manage plant diseases. In this study, we examined effect of AgNPs dosage on seed germination of three plant species; corn (Zea mays L.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and zucchini (Cucurbita pepo L.). Therefore, this experiment designed to study the effect of AgNPs on germination percentage, germination rate, mean germination time, root length, fresh and dry weight of seedling for the three spices. Seven concentrations (0.05, 0.1, 0.5, 1, 1.5, 2 and 2.5 mg/L) of AgNPs were examined at seed germination stage. The results showed that the three spices revealed different dosage response to AgNPs on germination percentage and the measured growth characters. Germination rate values were enhanced for the three plants in response to AgNPs. Significant enhancement in germination percentage values for watermelon and zucchini plants were observed by treatment with AgNPs in comparison with nontreated seeds. AgNPs showed toxic effect on corn roots elongation whereas watermelon and zucchini seedling growth were positively affected by certain concentration of AgNPs. This study showed that exposure to AgNPs caused both positive and negative effects on plant growth and germination.
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Claims 5
Claim · model-written summary
AgNPs significantly enhanced germination percentage in watermelon and zucchini compared with nontreated seeds.
- Taxon
- watermelon and zucchini
Citrullus lanatus
Cucurbita pepo subsp. pepoe1 - Treatment
- treatment with AgNPse1
- Outcome
- germination percentagee1
- Direction
- enhancemente1
- Comparator
- nontreated seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Significant enhancement in germination percentage values for watermelon and zucchini plants were observed by treatment with AgNPs in comparison with nontreated seeds”
Claim · model-written summary
AgNPs had a toxic effect that decreased corn root elongation.
- Taxon
- corn
Zea mays subsp. mayse2 - Treatment
- AgNPse2
- Outcome
- roots elongatione2
- Direction
- decreaseinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“AgNPs showed toxic effect on corn roots elongation”
Claim · model-written summary
Certain AgNP concentrations positively affected seedling growth of watermelon and zucchini.
- Taxon
- watermelon and zucchiniCitrullus lanatusCucurbita pepo subsp. pepoe3
- Treatment
- certain concentration of AgNPse3
- Outcome
- seedling growthe3
- Direction
- positively affectede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“watermelon and zucchini seedling growth were positively affected by certain concentration of AgNPs”
Claim · model-written summary
Germination rate was enhanced in corn, watermelon and zucchini by AgNPs.
- Taxon
- corn (Zea mays L.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and zucchini (Cucurbita pepo L.)Citrullus lanatus
Cucurbita pepo
Zea mayse0 - Treatment
- AgNPse4
- Outcome
- Germination ratee4
- Direction
- enhancede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn (Zea mays L.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and zucchini (Cucurbita pepo L.)”
e4“Germination rate values were enhanced for the three plants in response to AgNPs”
Claim · model-written summary
The three species showed different dose responses of germination percentage to AgNPs.
- Taxon
- corn (Zea mays L.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and zucchini (Cucurbita pepo L.)Citrullus lanatusCucurbita pepoZea mayse0
- Treatment
- AgNPse5
- Outcome
- germination percentagee5
- Qualifier
- different dosage response to AgNPse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn (Zea mays L.), watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) and zucchini (Cucurbita pepo L.)”
e5“the three spices revealed different dosage response to AgNPs on germination percentage”
The same questions in other papers
silver nanoparticle · growth · Zea mays (maize)Results differ
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →silver nanoparticle · growth · Cucurbita pepoResults agree
2 papers in the same direction as this paper
- positive
- positive
silver nanoparticle · growth · Citrullus lanatus (watermelon)Results agree
3 papers in the same direction as this paper
- positive
- 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.