Abstract
In order to clarify the effects of zinc fertilizer on photosynthetic and senescence characteristics of wheat flag leaves on dry land,a field experiment with four zinc fertilizer levels was conducted with strong gluten wheat cultivar Jing9428 and common wheat cultivar Lunxuan987 as materials.The results showed that lower zinc fertilizer(11.25 kg·hm-2) could enhance net photosynthetic rate,activities of superoxide dismutase(SOD),peroxide dismutase(POD) and catalase(CAT) of flag leaves,while decreased the content of malondialdehyde(MDA),and increased the dry matter accumulation of population on dry land.Lunxuan987 had the highest grain number per spike and 1000-grain weight and achieved the highest yield at lower zinc level.The moderate zinc treatment(22.5 kg·hm-2) decreased POD activity of flag leaves,insignificantly increased yield of Jing 9428,while the yield of Lunxuan987 was equivalent to that at lower zinc.Under higher zinc treatment(33.75 kg·hm-2),net photosynthetic rate,activities of SOD and POD of flag leaves decreased,and the number of spikes,grains per spike and 1000-grain weight of wheat lessened,so the yield reduced clearly.Lunxuan987 was influenced more by zinc fertilizer than Jing9428 on dry land.So to improve the yield of Lunxuan987 on dry land,11.25 kg·hm-2 zinc fertilizer were recommended.
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Claims 13
Claim · model-written summary
Low zinc fertilizer increased flag leaf net photosynthetic rate and antioxidant enzyme activities.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Organ / stage
- flag leavese0
- Treatment
- lower zinc fertilizer(11.25 kg·hm-2)e0
- Outcome
- net photosynthetic rate,activities of superoxide dismutase(SOD),peroxide dismutase(POD) and catalase(CAT)e0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower zinc fertilizer(11.25 kg·hm-2) could enhance net photosynthetic rate,activities of superoxide dismutase(SOD),peroxide dismutase(POD) and catalase(CAT) of flag leaves”
t0“Winter Wheat”
Claim · model-written summary
Low zinc fertilizer decreased flag leaf malondialdehyde content.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- lower zinc fertilizer(11.25 kg·hm-2)e0
- Outcome
- content of malondialdehyde(MDA)e1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower zinc fertilizer(11.25 kg·hm-2)”
e1“decreased the content of malondialdehyde(MDA)”
t0“Winter Wheat”
Claim · model-written summary
Low zinc fertilizer increased dry matter accumulation on dry land.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- lower zinc fertilizer(11.25 kg·hm-2)e0
- Outcome
- dry matter accumulation of populatione1
- Direction
- increasede1
- Setting
- dry lande1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower zinc fertilizer(11.25 kg·hm-2)”
e1“increased the dry matter accumulation of population on dry land”
t0“Winter Wheat”
Claim · model-written summary
Lunxuan987 had the highest grain number per spike and 1000-grain weight at the lower zinc level.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Lunxuan987e0
- Treatment
- lower zinc levele1
- Outcome
- grain number per spike and 1000-grain weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lunxuan987 had the highest grain number per spike and 1000-grain weight”
e1“at lower zinc level”
t0“Winter Wheat”
Claim · model-written summary
Lunxuan987 achieved its highest yield at the lower zinc level.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Lunxuan987e0
- Treatment
- lower zinc levele0
- Outcome
- yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lunxuan987 had the highest grain number per spike and 1000-grain weight and achieved the highest yield at lower zinc level”
t0“Winter Wheat”
Claim · model-written summary
Moderate zinc treatment decreased flag leaf POD activity.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- flag leavese0
- Treatment
- moderate zinc treatment(22.5 kg·hm-2)e0
- Outcome
- POD activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The moderate zinc treatment(22.5 kg·hm-2) decreased POD activity of flag leaves”
t0“Winter Wheat”
Claim · model-written summary
Moderate zinc treatment increased Jing 9428 yield insignificantly.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Jing 9428e0
- Treatment
- moderate zinc treatment(22.5 kg·hm-2)e0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The moderate zinc treatment(22.5 kg·hm-2) decreased POD activity of flag leaves,insignificantly increased yield of Jing 9428”
t0“Winter Wheat”
Claim · model-written summary
Lunxuan987 yield under moderate zinc was equivalent to its yield under lower zinc.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Lunxuan987e1
- Treatment
- moderate zinc treatment(22.5 kg·hm-2)e0
- Outcome
- yielde1
- Direction
- equivalente1
- Comparator
- lower zince1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The moderate zinc treatment(22.5 kg·hm-2)”
e1“yield of Lunxuan987 was equivalent to that at lower zinc”
t0“Winter Wheat”
Claim · model-written summary
High zinc decreased flag leaf net photosynthetic rate and SOD and POD activities.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- flag leavese0
- Treatment
- higher zinc treatment(33.75 kg·hm-2)e0
- Outcome
- net photosynthetic rate,activities of SOD and PODe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under higher zinc treatment(33.75 kg·hm-2),net photosynthetic rate,activities of SOD and POD of flag leaves decreased”
t0“Winter Wheat”
Claim · model-written summary
High zinc reduced spike number, grains per spike and 1000-grain weight.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- higher zinc treatment(33.75 kg·hm-2)e0
- Outcome
- number of spikes,grains per spike and 1000-grain weighte1
- Direction
- lessenede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher zinc treatment(33.75 kg·hm-2)”
e1“the number of spikes,grains per spike and 1000-grain weight of wheat lessened”
t0“Winter Wheat”
Claim · model-written summary
High zinc clearly reduced wheat yield.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- higher zinc treatment(33.75 kg·hm-2)e0
- Outcome
- yielde1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher zinc treatment(33.75 kg·hm-2)”
e1“so the yield reduced clearly”
t0“Winter Wheat”
Claim · model-written summary
Lunxuan987 responded more to zinc fertilizer than Jing9428 on dry land.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Lunxuan987e0
- Treatment
- zinc fertilizere0
- Outcome
- influenced moree0
- Direction
- moree0
- Comparator
- Jing9428e0
- Setting
- dry lande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lunxuan987 was influenced more by zinc fertilizer than Jing9428 on dry land”
t0“Winter Wheat”
Claim · model-written summary
The authors recommend 11.25 kg·hm-2 zinc fertilizer to improve Lunxuan987 yield on dry land.
- Taxon
- Winter WheatTriticum aestivumt0
- Material
- Lunxuan987e0
- Outcome
- 11.25 kg·hm-2 zinc fertilizer were recommendede0
- Setting
- dry lande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to improve the yield of Lunxuan987 on dry land,11.25 kg·hm-2 zinc fertilizer were recommended”
t0“Winter Wheat”
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