Abstract
In order to find wheat genotypes with tolerance to high rates of Zn,a solution culture experiment was conducted to investigate the influence of different Zn supply rates(Zn0,Zn0.5,Zn10,Zn40 were used to represent Zn rates at 0,0.5,10,40 mg Zn/L,respectively) on growth and Zn,Mn and Fe uptake of seedling plants of three semi-winteriness winter wheat genotypes.The obtained results showed that no obvious zinc deficiency symptoms were observed in wheat plants receiving no Zn supply.At Zn0.5 level,wheat plants also grew normally. Wheat plants of all the three genotypes tested were significantly affected in a negative way at high supplying rates(Zn10 and Zn40),with tiller,growth of root and shoot being inhibited,and leaf chlorophyll SPAD values and tolerance index(especially for root parts) being reduced.However,high rates of Zn greatly increased Zn concentration and uptake in various parts of wheat plants,especially in roots.It should be pointed out that Zn concentration and uptake,as well as Zn accumulation in roots at Zn10 were higher than that at Zn40.Zn and Fe stimulated each other's absorption in roots,but inhibited each other in shoots,while Zn and Mn only had antagonistic effect on each other.Under the conditions of excessive Zn supply,Xinong 979 had the highest tolerance index,translocation rate of Zn and Fe,and Mn concentration among the three genotypes.In conclusion,when Zn was supplied 5-10 times of normal rate to wheat plants,there was not obvious negative effect on growth and development of winter wheat plants.However,when Zn was supplied at 100200 or 400800 times of normal rates,the wheat plants would be harmed severely due to Zn toxicity.Xinong 979 had the largest tolerance to Zn toxicity among the three genotypes.
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Claims 13
Claim · model-written summary
No obvious zinc deficiency symptoms appeared in wheat receiving no Zn supply.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- no Zn supplye1
- Outcome
- zinc deficiency symptomse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“no obvious zinc deficiency symptoms were observed in wheat plants receiving no Zn supply”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Wheat grew normally at the Zn0.5 supply level.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Zn0.5 levele2
- Outcome
- grew normallye2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“At Zn0.5 level,wheat plants also grew normally”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
High Zn supply (Zn10 and Zn40) inhibited tiller number, root growth and shoot growth of wheat.
- Taxon
- WheatTriticum aestivume3
- Treatment
- high supplying rates (Zn10 and Zn40)e3
- Outcome
- tiller,growth of root and shoote3
- Direction
- inhibitede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Wheat plants of all the three genotypes tested were significantly affected in a negative way at high supplying rates (Zn10 and Zn40), with tiller,growth of root and shoot being inhibited”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
High Zn supply reduced leaf chlorophyll SPAD values and tolerance index of wheat.
- Taxon
- WheatTriticum aestivume3
- Treatment
- high supplying rates (Zn10 and Zn40)e3
- Outcome
- leaf chlorophyll SPAD values and tolerance indexe4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Wheat plants of all the three genotypes tested were significantly affected in a negative way at high supplying rates (Zn10 and Zn40), with tiller,growth of root and shoot being inhibited”
e4“leaf chlorophyll SPAD values and tolerance index(especially for root parts) being reduced”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
High Zn rates greatly increased Zn concentration and uptake in wheat, especially in roots.
- Taxon
- wheatTriticum aestivume5
- Organ / stage
- rootse5
- Treatment
- high rates of Zne5
- Outcome
- Zn concentration and uptakee5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“high rates of Zn greatly increased Zn concentration and uptake in various parts of wheat plants,especially in roots”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn concentration, uptake and root accumulation at Zn10 were higher than at Zn40.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- rootse6
- Treatment
- Zn10e6
- Outcome
- Zn concentration and uptake, as well as Zn accumulation in rootse6
- Direction
- highere6
- Comparator
- Zn40e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“It should be pointed out that Zn concentration and uptake, as well as Zn accumulation in roots at Zn10 were higher than that at Zn40”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn and Fe stimulated each other's absorption in wheat roots.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- rootse7
- Compound
- Zn and Fee7
- Outcome
- each other's absorptione7
- Direction
- stimulatede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Zn and Fe stimulated each other's absorption in roots”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn and Fe inhibited each other's uptake in wheat shoots.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- shootse7
- Compound
- Zn and Fee7
- Outcome
- each other in shootse7
- Direction
- inhibitede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Zn and Fe stimulated each other's absorption in roots,but inhibited each other in shoots”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn and Mn had only an antagonistic effect on each other in wheat.
- Taxon
- wheatTriticum aestivumt0
- Compound
- Zn and Mne7
- Outcome
- effect on each othere7
- Direction
- antagonistice7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“while Zn and Mn only had antagonistic effect on each other”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Under excess Zn supply, Xinong 979 had the highest tolerance index, translocation rate of Zn and Fe, and Mn concentration among the three genotypes.
- Taxon
- wheatTriticum aestivumt0
- Material
- Xinong 979e7
- Treatment
- excessive Zn supplye7
- Outcome
- tolerance index,translocation rate of Zn and Fe,and Mn concentratione7
- Direction
- higheste7
- Comparator
- among the three genotypese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Under the conditions of excessive Zn supply,Xinong 979 had the highest tolerance index,translocation rate of Zn and Fe,and Mn concentration among the three genotypes”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn supplied at 5-10 times the normal rate did not obviously harm wheat growth and development.
- Taxon
- wheatTriticum aestivume7
- Treatment
- 5-10 times of normal ratee7
- Outcome
- growth and developmente7
- Comparator
- normal ratee7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“when Zn was supplied 5-10 times of normal rate to wheat plants, there was not obvious negative effect on growth and development of winter wheat plants”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Zn supplied at 100-200 or 400-800 times the normal rate severely harmed wheat plants through Zn toxicity.
- Taxon
- wheatTriticum aestivume7
- Treatment
- 100200 or 400800 times of normal ratese7
- Outcome
- wheat plantse7
- Direction
- harmed severelye7
- Qualifier
- due to Zn toxicitye7
- Comparator
- normal ratese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“when Zn was supplied at 100200 or 400800 times of normal rates,the wheat plants would be harmed severely due to Zn toxicity”
t0“wheat seedlings of three genotypes”
Claim · model-written summary
Xinong 979 had the largest Zn toxicity tolerance among the three genotypes.
- Taxon
- wheatTriticum aestivumt0
- Material
- Xinong 979e7
- Outcome
- tolerance to Zn toxicitye7
- Direction
- largeste7
- Comparator
- among the three genotypese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Xinong 979 had the largest tolerance to Zn toxicity among the three genotypes”
t0“wheat seedlings of three genotypes”
The same questions in other papers
zinc atom · disease · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 13 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
12 papers more in this group
See all 16 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.