Abstract
A sand culture experiment was conducted to study the dynamic accumulation and distribution of dry matter and zinc in organs of apple trees under three zinc application levels,Zn 0.013,0.254 and 5.07 mg/L.The results show that the growth and nutrient uptakes of apple trees are affected under both the deficiency and excess of Zn supplies.There are little effects on the accumulation and distribution of dry matter and nutrient under different zinc levels at the early growth stage,and the nutrients in roots and stems are utilized by branches and leaves for quickly growth.With the plant growth,the first peak of new roots turns up,the dry matter is accumulated quickly under different treatments,while the growth of roots is constrained by the deficiency and excess zinc supplies,and the zinc contents in each organs are significantly increased except branches and the order is Zn3 Zn2 Zn1.The dry matter accumulation is constrained by the deficiency and excess zinc supplies at the later growth stage,and zinc toxicity is happened under the excess zinc supply.The accumulation of zinc is increased quickly under the moderate and excess zinc supplies,however,the roots are increased under the deficiency treatment,and the distribution rate in root is significantly higher than that under the moderate and excess zinc supplies.These results indicates that at the later growth stage,the plant growth is constrained by the deficiency and excess zinc supplies;distribution rate of zinc in roots is higher than that in shoots under the lower zinc treatment,while the content of zinc in shoots is higher than that in roots under the moderate and excess zinc treatments.
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Claims 8
Claim · model-written summary
Zinc deficiency and excess supplies affected growth and nutrient uptake of apple trees
- Taxon
- apple trees
Malus domesticat0 - Treatment
- deficiency and excess of Zn suppliese1
- Outcome
- growth and nutrient uptakese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e1“the growth and nutrient uptakes of apple trees are affected under both the deficiency and excess of Zn supplies”
Claim · model-written summary
Different zinc levels had little effect on dry matter and nutrient accumulation and distribution at the early growth stage
- Taxon
- apple treesMalus domesticat0
- Treatment
- different zinc levelse2
- Outcome
- accumulation and distribution of dry matter and nutriente2
- Direction
- no_changeinferrede2
- Qualifier
- at the early growth stagee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e2“There are little effects on the accumulation and distribution of dry matter and nutrient under different zinc levels at the early growth stage”
Claim · model-written summary
Zinc contents in each organ of apple trees significantly increased under zinc application, except in branches
- Taxon
- apple treesMalus domesticat0
- Treatment
- zinc application levelse0
- Outcome
- zinc contents in each organse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“under three zinc application levels,Zn 0.013,0.254 and 5.07 mg/L”
e3“the zinc contents in each organs are significantly increased except branches and the order is Zn3 Zn2 Zn1”
Claim · model-written summary
Deficiency and excess zinc supplies constrained dry matter accumulation at the later growth stage
- Taxon
- apple treesMalus domesticat0
- Treatment
- deficiency and excess zinc suppliese4
- Outcome
- dry matter accumulatione4
- Direction
- constrainede4
- Qualifier
- at the later growth stagee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e4“The dry matter accumulation is constrained by the deficiency and excess zinc supplies at the later growth stage”
Claim · model-written summary
Zinc toxicity occurred in apple trees under excess zinc supply
- Taxon
- apple treesMalus domesticat0
- Treatment
- excess zinc supplye5
- Outcome
- zinc toxicitye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e5“zinc toxicity is happened under the excess zinc supply”
Claim · model-written summary
Under deficiency zinc supply, distribution rate of zinc in roots was significantly higher than under moderate and excess supplies
- Taxon
- apple treesMalus domesticat0
- Treatment
- deficiency treatmente6
- Outcome
- distribution rate in roote6
- Direction
- highere6
- Comparator
- moderate and excess zinc suppliese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e6“the roots are increased under the deficiency treatment,and the distribution rate in root is significantly higher than that under the moderate and excess zinc supplies”
Claim · model-written summary
Under moderate and excess zinc treatments, zinc content in shoots was higher than in roots
- Taxon
- apple treesMalus domesticat0
- Treatment
- moderate and excess zinc treatmentse7
- Outcome
- content of zinc in shootse7
- Direction
- highere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e7“the content of zinc in shoots is higher than that in roots under the moderate and excess zinc treatments”
Claim · model-written summary
Under the lower zinc treatment, distribution rate of zinc in roots was higher than in shoots
- Taxon
- apple treesMalus domesticat0
- Treatment
- lower zinc treatmente1
- Outcome
- distribution rate of zinc in rootse1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e1“distribution rate of zinc in roots is higher than that in shoots under the lower zinc treatment”
The same questions in other papers
zinc atom · yield · Malus domestica (apple)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- no effect
- positive
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See all 12 papers →zinc atom · growth · Malus domestica (apple)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
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See all 6 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.