Abstract
A experiment was conducted to study the effects of selenium(Se)and cobalt(Co)on the growth,yield and quality of alfalfa(Medicago sativa L.)in the yellow river beach of Henan.The results show that the rational single and combined applications of Se and Co could promote net photosythetic efficiency,decrease plant respiration loss,enhance production rate of dry matter from ramification to florescence,and raise alfalfa hay production from the ramification to the florescence stages of alfalfa.The application rates of Se being 570 g/ha and Co 765 g/ha combined application have the best effects on the forage production and grain development,and alfalfa hay is increased by 8.06 % and 1000-grain weight is increased by 12.85 %.The Co or Se and Co combined application could also promote growth of root nodule and accumulation of root nodule volumes of alfalfa in a depth of 0-20 cm which could enhance nitrogen fixation.In conclusion,rational basal applications of Se and Co have better effects on fine hay and seed production because they could enhance net photosynthetic capacity,promote growth of alfalfa,raise yields of alfalfa and improve seed quality.
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Claims 9
Claim · model-written summary
Rational Se and Co applications promoted net photosynthetic efficiency.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- single and combined applications of Se and Coe0
- Outcome
- net photosythetic efficiencye0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rational single and combined applications of Se and Co could promote net photosythetic efficiency”
t0“alfalfa”
Claim · model-written summary
Rational Se and Co applications reduced plant respiration loss.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- single and combined applications of Se and Coe0
- Outcome
- plant respiration losse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rational single and combined applications of Se and Co could promote net photosythetic efficiency,decrease plant respiration loss”
t0“alfalfa”
Claim · model-written summary
Rational Se and Co applications enhanced dry matter production from ramification to florescence.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- single and combined applications of Se and Coe0
- Outcome
- production rate of dry mattere0
- Direction
- enhancee0
- Qualifier
- from ramification to florescencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rational single and combined applications of Se and Co could promote net photosythetic efficiency,decrease plant respiration loss,enhance production rate of dry matter from ramification to florescence”
t0“alfalfa”
Claim · model-written summary
Rational Se and Co applications increased alfalfa hay production from ramification to florescence.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- single and combined applications of Se and Coe0
- Outcome
- alfalfa hay productione0
- Direction
- raisee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rational single and combined applications of Se and Co could promote net photosythetic efficiency,decrease plant respiration loss,enhance production rate of dry matter from ramification to florescence,and raise alfalfa hay production from the ramification to the florescence stages of alfalfa”
t0“alfalfa”
Claim · model-written summary
Combined 570 g/ha Se and 765 g/ha Co increased alfalfa hay by 8.06%.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- Se being 570 g/ha and Co 765 g/ha combined applicatione0
- Outcome
- alfalfa haye0
- Direction
- increasede0
- Value
- 8.06 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application rates of Se being 570 g/ha and Co 765 g/ha combined application have the best effects on the forage production and grain development,and alfalfa hay is increased by 8.06 %”
t0“alfalfa”
Claim · model-written summary
Combined 570 g/ha Se and 765 g/ha Co increased 1000-grain weight by 12.85%.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- Se being 570 g/ha and Co 765 g/ha combined applicatione0
- Outcome
- 1000-grain weighte0
- Direction
- increasede0
- Value
- 12.85 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application rates of Se being 570 g/ha and Co 765 g/ha combined application have the best effects on the forage production and grain development,and alfalfa hay is increased by 8.06 % and 1000-grain weight is increased by 12.85 %”
t0“alfalfa”
Claim · model-written summary
Co alone or with Se promoted root nodule growth and volume accumulation at 0–20 cm depth.
- Taxon
- alfalfaMedicago sativat0
- Organ / stage
- root nodulee0
- Treatment
- Co or Se and Co combined applicatione0
- Outcome
- growth of root nodule and accumulation of root nodule volumese0
- Direction
- promotee0
- Qualifier
- a depth of 0-20 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Co or Se and Co combined application could also promote growth of root nodule and accumulation of root nodule volumes of alfalfa in a depth of 0-20 cm”
t0“alfalfa”
Claim · model-written summary
The authors attribute enhanced nitrogen fixation to increased root nodules after Co or combined application.
- Taxon
- alfalfaMedicago sativat0
- Organ / stage
- root nodulee0
- Treatment
- Co or Se and Co combined applicatione0
- Outcome
- nitrogen fixatione0
- Direction
- enhancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Co or Se and Co combined application could also promote growth of root nodule and accumulation of root nodule volumes of alfalfa in a depth of 0-20 cm which could enhance nitrogen fixation”
t0“alfalfa”
Claim · model-written summary
The authors recommend rational basal Se and Co applications for hay and seed production.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- basal applications of Se and Coe0
- Outcome
- fine hay and seed productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rational basal applications of Se and Co have better effects on fine hay and seed production”
t0“alfalfa”
The same questions in other papers
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1 in the opposite direction
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selenium atom · physiology: respiration · Medicago sativa (alfalfa)Results agree
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selenium atom · symbiosis · Medicago sativa (alfalfa)Results agree
3 papers in the same direction as this paper
- positive
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cobalt atom · yield · Medicago sativa (alfalfa)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.