Abstract
The purpose. To study features of formation of the assimilatory apparatus of plants of corn for grain with growing the crop on edaphic backgrounds, polluted with lead, cadmium, and zinc. Methods. Probes were carried out in long small-plot experiment in 1999 in pilot farm "Chabany" NSC Institute of agriculture of NAAS. The area of leaf surface, photosynthetic potential of sowing (PPS), amount of dry matter, net productivity of photosynthesis (NPP), parameters of fluorescence of chlorophyll pigment were determined in master phases of propagation and growth of plants of corn. Results. It is proved that at accumulation of heavy metals in upper 0 -20 cm layer of grey forest soil processes of formation of the assimilatory apparatus of plants of corn were infringed. PPS had decreased for 7,5 -34,2%, NPP -for 3,22 -22,6%. Calvin's efficiency, determine on parameters of Kautsky curved line, had correlative dependence with PPS of sowing r=0,588 -0,923 and with NPP -r=0,581 -0,914. Productivity of mealies had decreased for 6 -22% in comparison with the supervisory control. Conclusions. The close positive correlation between quality and quantity indicators of state of the assimilatory apparatus of plants of corn and productivity of crop (r=0,978 -0,995.) is revealed.
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Claims 7
Claim · model-written summary
Heavy metal accumulation in soil impaired formation of the corn assimilatory apparatus.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- accumulation of heavy metalse0
- Outcome
- formation of the assimilatory apparatuse0
- Direction
- infringede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at accumulation of heavy metals in upper 0 -20 cm layer of grey forest soil processes of formation of the assimilatory apparatus of plants of corn were infringed”
Claim · model-written summary
Photosynthetic potential of corn sowing decreased by 7,5 -34,2%.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- polluted with lead, cadmium, and zince1
- Outcome
- PPSe0
- Direction
- decreasede0
- Value
- 7,5 -34,2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PPS had decreased for 7,5 -34,2%”
e1“plants of corn for grain with growing the crop on edaphic backgrounds, polluted with lead, cadmium, and zinc”
Claim · model-written summary
Net productivity of corn photosynthesis decreased by 3,22 -22,6%.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- polluted with lead, cadmium, and zince2
- Outcome
- NPPe0
- Direction
- decreasede1
- Value
- 3,22 -22,6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPP -for 3,22 -22,6%”
e1“PPS had decreased for 7,5 -34,2%, NPP -for 3,22 -22,6%”
e2“plants of corn for grain with growing the crop on edaphic backgrounds, polluted with lead, cadmium, and zinc”
Claim · model-written summary
Calvin efficiency correlated with corn sowing photosynthetic potential (r=0,588 -0,923).
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- Calvin's efficiencye0
- Direction
- correlative dependencee0
- Value
- r=0,588 -0,923e0
- Comparator
- PPS of sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calvin's efficiency, determine on parameters of Kautsky curved line, had correlative dependence with PPS of sowing r=0,588 -0,923”
e1“propagation and growth of plants of corn”
Claim · model-written summary
Calvin efficiency correlated with corn net photosynthesis productivity (r=0,581 -0,914).
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- Calvin's efficiencye0
- Direction
- correlative dependencee0
- Value
- r=0,581 -0,914e0
- Comparator
- NPPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calvin's efficiency, determine on parameters of Kautsky curved line, had correlative dependence with PPS of sowing r=0,588 -0,923 and with NPP -r=0,581 -0,914”
e1“propagation and growth of plants of corn”
Claim · model-written summary
Corn productivity decreased by 6 -22% relative to control.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- polluted with lead, cadmium, and zince1
- Outcome
- Productivity of mealiese0
- Direction
- decreasede0
- Value
- 6 -22%e0
- Comparator
- supervisory controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Productivity of mealies had decreased for 6 -22% in comparison with the supervisory control”
e1“plants of corn for grain with growing the crop on edaphic backgrounds, polluted with lead, cadmium, and zinc”
Claim · model-written summary
Corn assimilatory apparatus indicators and crop productivity showed a close positive correlation (r=0,978 -0,995).
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- productivity of crope0
- Direction
- positive correlatione0
- Value
- r=0,978 -0,995e0
- Comparator
- quality and quantity indicators of state of the assimilatory apparatuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“close positive correlation between quality and quantity indicators of state of the assimilatory apparatus of plants of corn and productivity of crop (r=0,978 -0,995.)”
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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.