Abstract
Cobalt (Co) and molybdenum (Mo) are essential elements with a fundamental role in biological nitrogen fi xation inlegumes. Vitamins such as thiamine, despite being required in small quantities, infl uence plant growth. This study aimed to assess theeffi ciency of diff erent doses of thiamine applied as seed treatment, combined or not with Co and Mo, in enhancing the developmentof soybean crops. The experiment was conducted in a greenhouse according to a randomized block design with a 6 × 2 factorialarrangement, comprising six thiamine doses (0, 10, 25, 50, 100, and 200 mg kg−1) in the presence or absence of Co and Mo at therecommended rate of 100 mL ha−1. At 40 days after sowing, plants were analyzed for root length, root dry weight, shoot length, shootdry weight, nodule number, and nodule dry weight. Principal component analysis showed that combined application of Co and Mo withthiamine was negatively associated with all variables and that the thiamine doses most positively associated with the analyzed variableswere 50 and 200 mg kg−1. In treatments containing thiamine alone, there was a linear direct relationship between thiamine dose andnodule dry weight. Root and shoot lengths and dry weights were highest in plants treated with thiamine only at a dose of 122 mg kg−1.Application of Co and Mo combined with thiamine via seed treatment does not promote the development of soybean crops. Thiamineapplication is a promising treatment to increase shoot length, root dry weight, and nodule dry weight in soybean.
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Claims 6
Claim · model-written summary
Co and Mo with thiamine were negatively associated with all measured development variables.
- Taxon
- soybean crops
Glycine maxt0 - Treatment
- combined application of Co and Mo withthiaminee0
- Outcome
- all variablese0
- Direction
- negatively associatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined application of Co and Mo withthiamine was negatively associated with all variables”
t0“soybean crops”
Claim · model-written summary
Thiamine doses of 50 and 200 mg kg−1 were most positively associated with the measured variables.
- Taxon
- soybean cropsGlycine maxt0
- Treatment
- thiamine dosese0
- Outcome
- analyzed variablese0
- Direction
- most positively associatede0
- Value
- 50 and 200 mg kg−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thiamine doses most positively associated with the analyzed variableswere 50 and 200 mg kg−1”
t0“soybean crops”
Claim · model-written summary
With thiamine alone, increasing dose had a linear direct relationship with nodule dry weight.
- Taxon
- soybean cropsGlycine maxt0
- Treatment
- thiamine alonee0
- Outcome
- nodule dry weighte0
- Direction
- linear direct relationshipe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In treatments containing thiamine alone, there was a linear direct relationship between thiamine dose andnodule dry weight”
t0“soybean crops”
Claim · model-written summary
Root and shoot lengths and dry weights were highest at 122 mg kg−1 thiamine alone.
- Taxon
- soybean cropsGlycine maxt0
- Treatment
- thiamine only at a dose of 122 mg kg−1e0
- Outcome
- Root and shoot lengths and dry weightse0
- Direction
- higheste0
- Value
- 122 mg kg−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root and shoot lengths and dry weights were highest in plants treated with thiamine only at a dose of 122 mg kg−1”
t0“soybean crops”
Claim · model-written summary
Co and Mo combined with thiamine via seed treatment did not promote soybean development.
- Taxon
- soybean cropsGlycine maxe0
- Treatment
- Co and Mo combined with thiamine via seed treatmente0
- Outcome
- development of soybean cropse0
- Direction
- does not promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Co and Mo combined with thiamine via seed treatment does not promote the development of soybean crops”
Claim · model-written summary
Thiamine application was considered promising for increasing shoot length, root dry weight, and nodule dry weight.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Thiamineapplicatione0
- Outcome
- increase shoot length, root dry weight, and nodule dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thiamineapplication is a promising treatment to increase shoot length, root dry weight, and nodule dry weight in soybean”
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