Abstract
Growth regulators and row spacing are an alternative to be considered and planned together and it consists in an effective technology in the establishment most profitable cotton crop. The main objective of this work was to evaluate the influence of row spacing in cotton crops and applications forms of growth regulator on components of cotton growth, production and yield for two growing seasons, 2007/08 and 2008/09 in Selvíria, state of Mato Grosso do Sul, Brazil. The experimental design was the completely randomized blocks arranged in bands and consisted in the following row spacing: 0.45, 0.70 and 0.90 m long. The management of growth regulator (mepiquat chloride - MC) was splitting in four applications (35, 45, 55, and 65 days after emergence - D.A.E.); single application at 70 D.A.E.; and there was no application. The use of growth regulator in a single application, as well in a split application, decreases plant height and stem diameter. Lower values for stem diameter, number of bolls and weight of 20 bolls were observed with the use of 0.45 m row spacing. Highest seed cotton yields were observed by splitting MC application and the use of sowing denser row spacing.
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Claims 4
Claim · model-written summary
Growth regulator application decreased plant height and stem diameter of cotton.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- growth regulatore1
- Outcome
- plant height and stem diametere1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“row spacing in cotton crops”
e1“The use of growth regulator in a single application, as well in a split application, decreases plant height and stem diameter”
Claim · model-written summary
The 0.45 m row spacing gave lower stem diameter, number of bolls and weight of 20 bolls in cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 0.45 m row spacinge2
- Outcome
- stem diameter, number of bolls and weight of 20 bollse2
- Direction
- Lowere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“row spacing in cotton crops”
e2“Lower values for stem diameter, number of bolls and weight of 20 bolls were observed with the use of 0.45 m row spacing”
Claim · model-written summary
Splitting the MC application gave the highest seed cotton yields.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- splitting MC applicatione3
- Outcome
- seed cotton yieldse3
- Direction
- Higheste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“row spacing in cotton crops”
e3“Highest seed cotton yields were observed by splitting MC application and the use of sowing denser row spacing”
Claim · model-written summary
Sowing at denser row spacing gave the highest seed cotton yields.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- sowing denser row spacinge3
- Outcome
- seed cotton yieldse3
- Direction
- Higheste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“row spacing in cotton crops”
e3“Highest seed cotton yields were observed by splitting MC application and the use of sowing denser row spacing”
The same questions in other papers
density · yield · Gossypium hirsutum (cotton)Positive and negative results
129 papers in the same direction as this paper · 38 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
167 papers more in this group
See all 171 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.