Abstract
The objective of this work is to evaluate the insecticidal and attractiveness of concentrations of hydroalcoholic extract of crambe grains on Sitophilus zeamais, and its effect on the physiological quality of corn seeds. The experiments were conducted at the Laboratory of Entomology and Seeds of the Assis Gurgacz University Center, in Cascavel, PR. The evaluation of attractiveness and insecticidal effect were evaluated using DIC, with 4 treatments (0, 5, 15 and 25% extract concentration) and 10 or 5 replications, respectively, totaling 40 experimental plots for the insect attractiveness test and 20 Experimental plots for the test of the insecticidal effect. For the experiment on the physiological quality of corn seeds submitted to the extracts, a DIC was set up in a 4 × 4 factorial scheme, factor 1 being the storage time of the seeds (0, 30, 60 and 90 days) and factor 2, the concentrations (0, 5, 15 and 25%), with 4 replicates, totaling 64 plots. Data were submitted to ANAVA, and means adjusted to regression or submitted to the Tukey test at 5% of probability, using the statistical program ASSISTAT®. The results evidenced the treatment with a hydroalcoholic extract in the concentration of 25% as the one with the highest insecticidal effect, and extract at 15% concentration yields a higher percentage of germination, normal seedlings, and mass of seedlings than the control. At 25% concentration, the extract do not negatively influence any of the parameters analyzed. Storage time above 60 days stimulates germination, mass and length of maize seedlings.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Hydroalcoholic extract of crambe at 25% concentration had the highest insecticidal effect on Sitophilus zeamais in maize seed trials
- Treatment
- hydroalcoholic extracte1
- Interactor
- Sitophilus zeamais
Sitophilus zeamaist0pest - Outcome
- insecticidal effecte1
- Direction
- higheste1
- Qualifier
- in the concentration of 25%e1
- Setting
- Laboratory of Entomology and Seedse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sitophilus zeamais Insects and Maize Seed Quality”
e1“The results evidenced the treatment with a hydroalcoholic extract in the concentration of 25% as the one with the highest insecticidal effect”
e0“The experiments were conducted at the Laboratory of Entomology and Seeds of the Assis Gurgacz University Center, in Cascavel, PR”
Claim · model-written summary
Extract at 15% concentration gave a higher percentage of germination, normal seedlings and seedling mass than the control in maize seeds
- Treatment
- extract at 15% concentratione2
- Outcome
- percentage of germination, normal seedlings, and mass of seedlingse2
- Direction
- highere2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sitophilus zeamais Insects and Maize Seed Quality”
e2“extract at 15% concentration yields a higher percentage of germination, normal seedlings, and mass of seedlings than the control”
Claim · model-written summary
Extract at 25% concentration did not negatively influence the analysed seed parameters
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sitophilus zeamais Insects and Maize Seed Quality”
e3“At 25% concentration, the extract do not negatively influence any of the parameters analyzed”
Claim · model-written summary
Storage time above 60 days stimulated germination, mass and length of maize seedlings
- Treatment
- Storage time above 60 dayse4
- Outcome
- germination, mass and length of maize seedlingse4
- Direction
- stimulatese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Storage time above 60 days stimulates germination, mass and length of maize seedlings”
The same questions in other papers
storage · growth · Zea mays (maize)Positive and negative results
40 papers in the same direction as this paper · 20 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
58 papers more in this group
See all 62 papers →botanical · Sitophilus zeamais · Zea mays (maize)Positive and negative results
112 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
113 papers more in this group
See all 117 papers →botanical · growth · Zea mays (maize)Positive and negative results
197 papers in the same direction as this paper · 140 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- no effect
336 papers more in this group
See all 340 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.