Abstract
is the most limiting factor in cotton production and numerous efforts are being made to improve crop drought tolerance. A field study was conducted with the objectives to determine the effects of different application rates of glycine betaine in field grown cotton at Central Cotton Research Institute, Multan. Four levels of glycine betaine (0.0, 1.0, 3.0 and 6.0 kg ha -1 ) were applied at three physiological growth stages i.e. at squaring, first flower and peak flowering. Cotton cultivar CIM-448 was used as test crop. Results showed that crop sprayed with glycine betaine at the rate of 6.0 kg ha -1 maintained 120.0, 62.1, 69.7 and 35.5 percent higher net CO2 assimilation rate (PN), transpiration rate (E), stomatal resistance (gs) and water use efficiency (PN/E), respectively over that of untreated crop. Crop spayed with glycine betaine at peak flowering stage maintained higher PN, E, gs and PN/E compared to at other stages of growth.
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Claims 5
Claim · model-written summary
Cotton sprayed with 6.0 kg ha -1 glycine betaine had 120.0 percent higher net CO2 assimilation than untreated cotton.
- Taxon
- COTTON
Gossypium hirsutumt0 - Treatment
- glycine betaine at the rate of 6.0 kg ha -1e0
- Outcome
- net CO2 assimilation rate (PN)e0
- Direction
- highere0
- Value
- 120.0e0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop sprayed with glycine betaine at the rate of 6.0 kg ha -1 maintained 120.0, 62.1, 69.7 and 35.5 percent higher net CO2 assimilation rate (PN), transpiration rate (E), stomatal resistance (gs) and water use efficiency (PN/E), respectively over that of untreated crop”
t0“COTTON (GOSSYPIUM HIRSUTUM L.)”
Claim · model-written summary
Cotton sprayed with 6.0 kg ha -1 glycine betaine had 62.1 percent higher transpiration than untreated cotton.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- glycine betaine at the rate of 6.0 kg ha -1e0
- Outcome
- transpiration rate (E)e0
- Direction
- highere0
- Value
- 62.1e0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop sprayed with glycine betaine at the rate of 6.0 kg ha -1 maintained 120.0, 62.1, 69.7 and 35.5 percent higher net CO2 assimilation rate (PN), transpiration rate (E), stomatal resistance (gs) and water use efficiency (PN/E), respectively over that of untreated crop”
t0“COTTON (GOSSYPIUM HIRSUTUM L.)”
Claim · model-written summary
Cotton sprayed with 6.0 kg ha -1 glycine betaine had 69.7 percent higher stomatal resistance than untreated cotton.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- glycine betaine at the rate of 6.0 kg ha -1e0
- Outcome
- stomatal resistance (gs)e0
- Direction
- highere0
- Value
- 69.7e0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop sprayed with glycine betaine at the rate of 6.0 kg ha -1 maintained 120.0, 62.1, 69.7 and 35.5 percent higher net CO2 assimilation rate (PN), transpiration rate (E), stomatal resistance (gs) and water use efficiency (PN/E), respectively over that of untreated crop”
t0“COTTON (GOSSYPIUM HIRSUTUM L.)”
Claim · model-written summary
Cotton sprayed with 6.0 kg ha -1 glycine betaine had 35.5 percent higher water use efficiency than untreated cotton.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- glycine betaine at the rate of 6.0 kg ha -1e0
- Outcome
- water use efficiency (PN/E)e0
- Direction
- highere0
- Value
- 35.5 percente0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop sprayed with glycine betaine at the rate of 6.0 kg ha -1 maintained 120.0, 62.1, 69.7 and 35.5 percent higher net CO2 assimilation rate (PN), transpiration rate (E), stomatal resistance (gs) and water use efficiency (PN/E), respectively over that of untreated crop”
t0“COTTON (GOSSYPIUM HIRSUTUM L.)”
Claim · model-written summary
Glycine betaine application at peak flowering yielded higher PN, E, gs, and PN/E than application at other stages.
- Taxon
- COTTONGossypium hirsutumt0
- Organ / stage
- peak flowering stagee0
- Treatment
- glycine betaine at peak flowering stagee0
- Outcome
- PN, E, gs and PN/Ee0
- Direction
- highere0
- Comparator
- other stages of growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop spayed with glycine betaine at peak flowering stage maintained higher PN, E, gs and PN/E compared to at other stages of growth”
t0“COTTON (GOSSYPIUM HIRSUTUM L.)”
The same questions in other papers
glycine betaine · physiology: photosynthesis · Gossypium hirsutum (cotton)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.