Abstract
Nickel (Ni) is the most eco-toxic and harmful metal for soil biological activity, plant metabolism and health of animals and human beings. Elevated level of Ni in plants causes many nutritional and physiological disorders as well as perturbs in normal balance of phytohormones. Exogenous application of phytohormones can regulate plant growth and reduce inhibitory effect of toxic metals on plants. Therefore present study was conducted to assess the effect of Ni contamination on growth and yield of mungbean and role of gibberellic acid (GA 3 ) to counteract negative effects of Ni contamination. Mungbean seeds were sown in potted soil contaminated with different levels of Ni (0, 20, 40, and 60 mg kg -1 ). Two sets of Ni contamination levels were maintained, one set was kept without application of GA 3 while in second set 10 -4 M GA 3 was applied as foliar spray at 15, 30 and 45 days after germination. Significant reduction in all growth and yield attributes of mungbean was recorded in Ni contaminated pots. However, application of GA 3 enhanced the length, fresh and dry weight of shoots and roots as well as grain yield of mungbean in Ni contamination. Moreover, Ni concentration was increased in roots and shoots of mungbean with increasing levels of Ni contamination from 0 to 60 mg kg -1 . But, application of GA 3 caused significant decrease in Ni concentration in roots and shoots of mungbean in Ni contaminated soil. It is concluded that use of GA 3 could be very effective to improve plant growth through reduced Ni uptake by plants in the Ni contaminated soils.
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Claims 10
Claim · model-written summary
Nickel contamination significantly reduced mungbean growth attributes
- Taxon
- Mungbean
.jpg?width=60)
Vigna radiatat0 - Treatment
- Ni contaminated potse0
- Outcome
- growthe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Mungbean”
e0“Significant reduction in all growth and yield attributes of mungbean was recorded in Ni contaminated pots.”
Claim · model-written summary
Nickel contamination significantly reduced mungbean yield attributes
- Taxon
- MungbeanVigna radiatat0
- Treatment
- Ni contaminated potse0
- Outcome
- yield attributese0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“Significant reduction in all growth and yield attributes of mungbean was recorded in Ni contaminated pots.”
Claim · model-written summary
GA 3 enhanced mungbean length under nickel contamination
- Taxon
- MungbeanVigna radiatat0
- Treatment
- application of GA 3e0
- Outcome
- lengthe0
- Direction
- enhancede0
- Qualifier
- Ni contaminatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“application of GA 3 enhanced the length, fresh and dry weight of shoots and roots as well as grain yield of mungbean in Ni contamination.”
Claim · model-written summary
GA 3 enhanced mungbean fresh and dry weight under nickel contamination
- Taxon
- MungbeanVigna radiatat0
- Treatment
- application of GA 3e0
- Outcome
- fresh and dry weighte0
- Direction
- enhancede0
- Qualifier
- Ni contaminatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“application of GA 3 enhanced the length, fresh and dry weight of shoots and roots as well as grain yield of mungbean in Ni contamination.”
Claim · model-written summary
GA 3 enhanced mungbean grain yield under nickel contamination
- Taxon
- MungbeanVigna radiatat0
- Treatment
- application of GA 3e0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Qualifier
- Ni contaminatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“application of GA 3 enhanced the length, fresh and dry weight of shoots and roots as well as grain yield of mungbean in Ni contamination.”
Claim · model-written summary
Root nickel concentration increased with nickel contamination
- Taxon
- MungbeanVigna radiatat0
- Organ / stage
- rootse0
- Treatment
- Ni contamination from 0 to 60 mg kg -1e0
- Outcome
- Ni concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“Ni concentration was increased in roots and shoots of mungbean with increasing levels of Ni contamination from 0 to 60 mg kg -1 .”
Claim · model-written summary
Shoot nickel concentration increased with nickel contamination
- Taxon
- MungbeanVigna radiatat0
- Organ / stage
- shootse0
- Treatment
- Ni contamination from 0 to 60 mg kg -1e0
- Outcome
- Ni concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“Ni concentration was increased in roots and shoots of mungbean with increasing levels of Ni contamination from 0 to 60 mg kg -1 .”
Claim · model-written summary
GA 3 significantly decreased root nickel concentration
- Taxon
- MungbeanVigna radiatat0
- Organ / stage
- rootse0
- Treatment
- application of GA 3e0
- Outcome
- Ni concentratione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“application of GA 3 caused significant decrease in Ni concentration in roots and shoots of mungbean in Ni contaminated soil.”
Claim · model-written summary
GA 3 significantly decreased shoot nickel concentration
- Taxon
- MungbeanVigna radiatat0
- Organ / stage
- shootse0
- Treatment
- application of GA 3e0
- Outcome
- Ni concentratione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“application of GA 3 caused significant decrease in Ni concentration in roots and shoots of mungbean in Ni contaminated soil.”
Claim · model-written summary
Authors recommend GA 3 to improve growth in nickel-contaminated soil
- Taxon
- MungbeanVigna radiatat0
- Outcome
- use of GA 3e0
- Qualifier
- Ni contaminated soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Mungbean”
e0“use of GA 3 could be very effective to improve plant growth through reduced Ni uptake by plants in the Ni contaminated soils.”
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heavy metal · nutrient: content · Vigna radiata (mung bean)Results agree
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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.