Abstract
Two field experiments were carried out at Sakha AgriculturalResearch Station at Kafr El-Sheikh Governorate, Egypt, on new hybridcotton (Giza 86 X 10229) during 2013 and 2014 seasons to study theeffect of sowing dates (15 April and 15 May) as main plots and fivemethods and time of potassium sulphate application as sub plots i.e:1- Soil application of 24 kg K2O/fed. as potassium sulphate (48% K2O)after thinning.2- Soil application of 24 kg K2O/fed. as potassium sulphate (48% K2O) attwo weeks after thinning.3- Foliar application of 5 kg potassium sulphate (48% K2O)/fed. sprayedtwo times at the square and start flowering stages.4- Foliar application of 5 kg potassium sulphate (48% K2O)/fed. sprayedtwo times at the start and peak of flowering stages.5- Foliar application of 5 kg potassium sulphate (48% K2O)/fed. sprayedthree times at square, start and peak of flowering stages. The mostimportant results obtained could be summarized as follows:1) Results obtained revealed that early sowing (15 April) significantlyincreased no. of internodes and sympodia on the main stem, no. ofopen bolls/plant, boll weight, seed cotton yield/plant and /feddan, dryweight of vegetative and fruiting organs of plant, days to first flower,days to first open boll and earliness percentage, while plant height, no.of more monopodial/plant and first sympodium node were decreased.2) Results indicated the positive effect of potassium when it was appliedat the proper time as soil application at two weeks after thinning whichresulted in less no. of monopodia and higher no. of sympodia, higherdry weight of vegetative and fruiting organs, heaviest bolls, and higherno. of open bolls as well as seed cotton yield/plant and /feddan.Potassium fertilization showed no effect on no. of main steminternodes/plant, first sympodium node, days to first flower, days tofirst open boll, seed index, earliness percentage and lint percentage.3) The interaction of planting date by K treatments was not significant forall traits studied in this investigation.4) Generally, results obtained revealed that early sowing (15 April) andthe soil application of potassium sulphate (24 kg/feddan) fertilizer attwo weeks after thinning for obtaining high productivity of new hybridcotton (Giza 86 x 10229).
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Claims 6
Claim · model-written summary
Early sowing increased internodes, sympodia, boll number and weight, yield, dry weight, flowering and boll timing, and earliness.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- GIZA 86 X 10229t0
- Treatment
- early sowing (15 April)e0
- Outcome
- no. of internodes and sympodia on the main steme0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early sowing (15 April) significantlyincreased no. of internodes and sympodia on the main stem, no. ofopen bolls/plant, boll weight, seed cotton yield/plant and /feddan, dryweight of vegetative and fruiting organs of plant, days to first flower,days to first open boll and earliness percentage”
t0“COTTON (GIZA 86 X 10229)”
e1“EFFECT OF TIMES AND METHODS OF POTASSIUM FERTILIZER ON YIELD AND YIELD COMPONENTS OF NEW HYBRID COTTON (GIZA 86 X 10229) UNDER EARLY AND LATE SOWING”
Claim · model-written summary
Early sowing decreased plant height, monopodia number, and first sympodium node.
- Taxon
- COTTONGossypium hirsutumt0
- Outcome
- plant height, no.of more monopodial/plant and first sympodium nodee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while plant height, no.of more monopodial/plant and first sympodium node were decreased.”
t0“COTTON”
e1“EFFECT OF TIMES AND METHODS OF POTASSIUM FERTILIZER ON YIELD AND YIELD COMPONENTS OF NEW HYBRID COTTON (GIZA 86 X 10229) UNDER EARLY AND LATE SOWING”
e2“early sowing (15 April) significantlyincreased no. of internodes and sympodia on the main stem, no. ofopen bolls/plant, boll weight, seed cotton yield/plant and /feddan, dryweight of vegetative and fruiting organs of plant, days to first flower,days to first open boll and earliness percentage”
Claim · model-written summary
Potassium soil application two weeks after thinning reduced monopodia and improved sympodia, dry weight, boll traits, and yield.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- soil application at two weeks after thinninge0
- Outcome
- no. of monopodiae0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application at two weeks after thinning whichresulted in less no. of monopodia and higher no. of sympodia, higherdry weight of vegetative and fruiting organs, heaviest bolls, and higherno. of open bolls as well as seed cotton yield/plant and /feddan.”
t0“COTTON”
Claim · model-written summary
Potassium fertilization had no reported effect on listed developmental and lint traits.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- Potassium fertilizatione0
- Outcome
- no. of main steminternodes/plant, first sympodium node, days to first flowere0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium fertilization showed no effect on no. of main steminternodes/plant, first sympodium node, days to first flower, days tofirst open boll, seed index, earliness percentage and lint percentage.”
t0“COTTON”
Claim · model-written summary
Planting date by potassium treatment interaction was not significant for studied traits.
- Taxon
- COTTONGossypium hirsutumt0
- Outcome
- interaction of planting date by K treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction of planting date by K treatments was not significant forall traits studied in this investigation.”
t0“COTTON”
Claim · model-written summary
Authors recommend April 15 sowing and potassium sulphate soil application two weeks after thinning for high productivity.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- soil application of potassium sulphate (24 kg/feddan) fertilizer attwo weeks after thinninge0
- Outcome
- high productivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early sowing (15 April) andthe soil application of potassium sulphate (24 kg/feddan) fertilizer attwo weeks after thinning for obtaining high productivity of new hybridcotton (Giza 86 x 10229).”
The same questions in other papers
fertilization · phenology · Gossypium hirsutum (cotton)Positive and negative results
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