Abstract
The objective was to evaluate the quality of sunflower seeds classified according to their thickness and passed through the seeder-fertilizer dosing system under variation of the travel speed. A lot of M734 was classified by thickness passing the seeds through a set of oblong-hole sieves and two thicknesses were selected. A portion of the seeds with only the commercial classification was also reserved, named as non-classified. The biometric evaluation was done and the sowing was carried out at 5.0, 6.5, 8.0, 9.5 and 11.0 km h-1. The quality of the seeds was evaluated through: germination and first germination count, average time and percentage of emergence in sand, accelerated aging and tetrazolium test. The classification by thickness reduce the coefficient of variation of the length, width, thickness, and mass but seeds classification does not affect seed vigor and viability after sowing under speed variation. In the higher studied speed, the passage of seeds through the dosing mechanism reduces germination. The vigor is affected at 6.5 km h-1 speed by the accelerated aging test. According to the emergence in sand and tetrazolium test, speed variation does not affect the vigor and viability of sunflower seeds.
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 5
Claim · model-written summary
Thickness classification reduced variation in seed length, width, thickness, and mass.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- classification by thicknesse0
- Outcome
- coefficient of variation of the length, width, thickness, and masse0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower”
e0“The classification by thickness reduce the coefficient of variation of the length, width, thickness, and mass”
Claim · model-written summary
Thickness classification did not affect seed vigor and viability after sowing across speed variation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- seeds classificatione0
- Outcome
- seed vigor and viabilitye0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower”
e0“seeds classification does not affect seed vigor and viability after sowing under speed variation”
Claim · model-written summary
At the highest studied speed, passage through the dosing mechanism reduced germination.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- passage of seeds through the dosing mechanisme0
- Outcome
- germinatione0
- Direction
- reducese0
- Qualifier
- higher studied speede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower”
e0“In the higher studied speed, the passage of seeds through the dosing mechanism reduces germination.”
Claim · model-written summary
Seed vigor was affected at 6.5 km h-1 according to accelerated aging.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 6.5 km h-1 speede0
- Outcome
- vigore0
- Qualifier
- accelerated aging teste0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sunflower”
e0“The vigor is affected at 6.5 km h-1 speed by the accelerated aging test.”
Claim · model-written summary
Speed variation did not affect vigor and viability according to sand emergence and tetrazolium tests.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- speed variatione0
- Outcome
- vigor and viabilitye0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“According to the emergence in sand and tetrazolium test, speed variation does not affect the vigor and viability of sunflower seeds.”