Abstract
ABSTRACT Application of zinc (Zn) [50, 100, 200, 300, and 400 μ g zinc sulfate (ZnSO4)/g of soil] reduced the foliage and the total growth of pigeon pea [Cajanus cajan (Linn.) Huth]. The root-shoot length ratio, varying little with age, was relatively low in the treated plants. Decrease in dry weights of stem and root was more pronounced in the late stages of plant development. The root-shoot dry weight ratio, maximum in the flowering stage, was lower in treated plants than in the control. Number of pods per plant declined, showing a positive correlation with Zn concentration. Net photosynthetic rate, declining with plant age, was significantly low in the treated plants. Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly. Proportion of vascular tissues both in stems and roots increased with plant age with a concomitant reduction of pith and cortex. Under zinc stress, the relative proportion of tissues varied inconsistently. Dimensions of vessel elements and fibers in stems and roots, increasing with the plant age, were always smaller in the treated plants. The vulnerability factor and mesomorphic ratio of treated plants declined, suggesting induction of water stress due to zinc treatments. Accumulation of Zn2 + in different plant parts was considerably high at each developmental stage of the treated plants, and showed a positive correlation with Zn in the soil.
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Claims 20
Claim · model-written summary
Zinc application reduced pigeon pea foliage and total growth.
- Taxon
- pigeon pea
Cajanus cajane0 - Treatment
- zinc (Zn) [50, 100, 200, 300, and 400 μ g zinc sulfate (ZnSO4)/g of soil]e0
- Outcome
- foliage and the total growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of zinc (Zn) [50, 100, 200, 300, and 400 μ g zinc sulfate (ZnSO4)/g of soil] reduced the foliage and the total growth of pigeon pea [Cajanus cajan (Linn.) Huth].”
Claim · model-written summary
The root-shoot length ratio varied little with age and was relatively low in zinc-treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- root-shoot length ratioe0
- Direction
- relatively lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root-shoot length ratio, varying little with age, was relatively low in the treated plants.”
t0“Pigeon Pea”
Claim · model-written summary
Stem and root dry weights decreased more in late development.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- dry weights of stem and roote0
- Direction
- Decreasee0
- Qualifier
- late stages of plant developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decrease in dry weights of stem and root was more pronounced in the late stages of plant development.”
t0“Pigeon Pea”
Claim · model-written summary
The root-shoot dry weight ratio peaked at flowering and was lower in treated plants than controls.
- Taxon
- pigeon peaCajanus cajant0
- Organ / stage
- flowering stagee0
- Treatment
- treated plantse0
- Outcome
- root-shoot dry weight ratioe0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root-shoot dry weight ratio, maximum in the flowering stage, was lower in treated plants than in the control.”
t0“Pigeon Pea”
Claim · model-written summary
Pods per plant declined under zinc stress.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- Number of pods per plante0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of pods per plant declined, showing a positive correlation with Zn concentration.”
t0“Pigeon Pea”
Claim · model-written summary
Pods per plant were positively correlated with Zn concentration.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- Zn concentratione0
- Outcome
- Number of pods per plante0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of pods per plant declined, showing a positive correlation with Zn concentration.”
t0“Pigeon Pea”
Claim · model-written summary
Net photosynthetic rate declined with age and was significantly low in treated plants.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- Net photosynthetic ratee0
- Direction
- lowe0
- Qualifier
- declining with plant agee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthetic rate, declining with plant age, was significantly low in the treated plants.”
t0“Pigeon Pea”
Claim · model-written summary
Density and size of stomata and trichomes declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- Density and size of stomata and trichomese0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
stomatal conductance declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- stomatal conductancee0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
intercellular carbon dioxide concentration declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- intercellular carbon dioxide concentratione0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
quantity of green pigments declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- quantity of green pigmentse0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
nitrate reductase activity declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- nitrate reductase activitye0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
nitrate and protein contents in the leaves declined significantly in treated pigeon pea.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- nitrate and protein contents in the leavese0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density and size of stomata and trichomes, stomatal conductance, intercellular carbon dioxide concentration, quantity of green pigments, nitrate reductase activity, and the nitrate and protein contents in the leaves also declined significantly.”
t0“Pigeon Pea”
Claim · model-written summary
Vascular tissue proportion increased with age.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- Proportion of vascular tissues both in stems and rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proportion of vascular tissues both in stems and roots increased with plant age with a concomitant reduction of pith and cortex.”
t0“Pigeon Pea”
Claim · model-written summary
Pith and cortex proportion fell with age.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- pith and cortexe0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proportion of vascular tissues both in stems and roots increased with plant age with a concomitant reduction of pith and cortex.”
t0“Pigeon Pea”
Claim · model-written summary
Relative tissue proportions varied inconsistently under zinc stress.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- relative proportion of tissuese0
- Qualifier
- zinc stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under zinc stress, the relative proportion of tissues varied inconsistently.”
t0“Pigeon Pea”
Claim · model-written summary
Vessel element and fiber dimensions increased with age but were smaller in treated plants.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- Dimensions of vessel elements and fibers in stems and rootse0
- Direction
- smallere0
- Qualifier
- increasing with the plant agee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dimensions of vessel elements and fibers in stems and roots, increasing with the plant age, were always smaller in the treated plants.”
t0“Pigeon Pea”
Claim · model-written summary
Vulnerability factor and mesomorphic ratio declined in treated plants.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- vulnerability factor and mesomorphic ratioe0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vulnerability factor and mesomorphic ratio of treated plants declined, suggesting induction of water stress due to zinc treatments.”
t0“Pigeon Pea”
Claim · model-written summary
The authors interpreted declining vulnerability and mesomorphic measures as zinc-induced water stress.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- zinc treatmentse0
- Outcome
- water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vulnerability factor and mesomorphic ratio of treated plants declined, suggesting induction of water stress due to zinc treatments.”
t0“Pigeon Pea”
Claim · model-written summary
Zn2 + accumulation was high across plant parts and stages and positively correlated with soil Zn.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- Zn in the soile0
- Outcome
- Accumulation of Zn2 + in different plant partse0
- Direction
- positive correlatione0
- Qualifier
- at each developmental stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Accumulation of Zn2 + in different plant parts was considerably high at each developmental stage of the treated plants, and showed a positive correlation with Zn in the soil.”
t0“Pigeon Pea”
The same questions in other papers
zinc atom · growth · Cajanus cajan (pigeon pea)Results differ
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →zinc sulfate · growth · Cajanus cajan (pigeon pea)Positive and negative results
7 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
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.