Abstract
Many environmental stress factors have been identified to increase square and boll abscission and thus result in reduced cotton yield. Under stress conditions, ethylene is elicited. Ethylene peaks before abscission to promote the formation of the abscission layer and plays a major role in early season square and boll abortion in cotton (Gossypium hirsutum L.). In addition, ethylene stimulates the leaf senescence process. Thus, it is desirable to protect plants from ethylene-induced fruit loss and premature leaf senescence under stress conditions. The objective of this study was to evaluate the ability of 1-methylcyclopropene (1-MCP) to protect cotton plants against abiotic stress caused by ethephon (ethylene promoting effect). Field studies using a randomized complete block design with four replications were conducted in 2010 and 2011 at Texas A&M AgriLIFE Research Farm in Burleson County, TX. Eight treatments that consisted of two 1-MCP rates (0 and 10 g a.i. ha-1) in combination with four ethephon rates (0, 146, 292, 438 mL·ha-1) were imposed at the first flower (FF) stage of the development. 1-MCP increased plant height and number of main stem nodes in both years. In addition, 1-MCP-treated plants exhibited greater membrane integrity and increased photosystem II quantum efficiency and thus delayed senescence in both years. These potentials for yield increase were realized in 2011 with 1-MCP treatment exhibiting a higher lint yield. In 2012, although 1-MCP treatment increased number of open fruit and open fruit weight per plant significantly, no significant lint yield increase was detected.
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 9
Claim · model-written summary
1-MCP increased cotton plant height in both years.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- 1-MCPe0
- Outcome
- plant heighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP increased plant height and number of main stem nodes in both years.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP increased the number of main stem nodes in both years.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCPe0
- Outcome
- number of main stem nodese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP increased plant height and number of main stem nodes in both years.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP-treated plants had greater membrane integrity.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP-treatede0
- Outcome
- membrane integritye0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP-treated plants exhibited greater membrane integrity and increased photosystem II quantum efficiency and thus delayed senescence in both years.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP-treated plants had increased photosystem II quantum efficiency.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP-treatede0
- Outcome
- photosystem II quantum efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP-treated plants exhibited greater membrane integrity and increased photosystem II quantum efficiency and thus delayed senescence in both years.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP delayed senescence in both years.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP-treatede0
- Outcome
- senescencee0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP-treated plants exhibited greater membrane integrity and increased photosystem II quantum efficiency and thus delayed senescence in both years.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP treatment gave higher lint yield in 2011.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP treatmente0
- Outcome
- lint yielde0
- Direction
- highere0
- Qualifier
- 2011e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These potentials for yield increase were realized in 2011 with 1-MCP treatment exhibiting a higher lint yield.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP increased open fruit number in 2012.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP treatmente0
- Outcome
- number of open fruite0
- Direction
- increasede0
- Qualifier
- 2012e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012, although 1-MCP treatment increased number of open fruit and open fruit weight per plant significantly, no significant lint yield increase was detected.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP increased open fruit weight per plant in 2012.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP treatmente0
- Outcome
- open fruit weight per plante0
- Direction
- increasede0
- Qualifier
- 2012e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012, although 1-MCP treatment increased number of open fruit and open fruit weight per plant significantly, no significant lint yield increase was detected.”
t0“Cotton Plants”
Claim · model-written summary
1-MCP did not produce a statistically significant lint yield increase in 2012.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1-MCP treatmente0
- Outcome
- lint yielde0
- Direction
- increasee0
- Qualifier
- 2012e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012, although 1-MCP treatment increased number of open fruit and open fruit weight per plant significantly, no significant lint yield increase was detected.”
t0“Cotton Plants”
The same questions in other papers
1-methylcyclopropene · growth · Gossypium hirsutum (cotton)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
2 papers more in this group
See all 6 papers →1-methylcyclopropene · yield · Gossypium hirsutum (cotton)Results differ
10 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
9 papers more in this group
See all 13 papers →1-methylcyclopropene · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
1-methylcyclopropene · physiology: photosynthesis · Gossypium hirsutum (cotton)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- no effect
6 papers more in this group
See all 10 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.