Abstract
This field experiment was carried out during the summer seasons of 2013 and 2014 to the Experimental Farm, Faculty of Technology and Development (Ghazala-Zagazig), Zagazig University, Sharkia Governorate, to study the response of squash plants cv.Revera to the foliar spray of potassium fertilization at the concentration of 1,2and 3ml l-1 as 37.5% K2O (four times) and ethephon (ethrel) at 150,250 and 350ppm( once at 2-4 true leaves stage) each alone or in combinations. The obtained results revealed that treated squash plants with foliar application of potassium and ethephon separately or in combination significantly influenced the studied characters compared to untreated plants in both seasons. However, spraying plants with 2 ml K2Ol-1+ 250 ppm ethephon gave the maximum values of most growth characteristics, i.e. number of leaves, fresh and dry weight per plant. Moreover, the treatment with 2 ml K2O l-1 +250 or 350 ppm ethephon recorded the best results of floral traits by decreasing the number of male flowers and sex ratio whereas increased number of female flowers, femaleness as well as yield and its components ,i.e. number of fruits /plant, fresh weight of fruit ,early and total yield per plot. Conclusively,from these results it could be concluded that foliar application of potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm proved to be the best choice for growing and improving sex-expression by increasing number of female flowers and consequently the yield of plants when squash grown under high summer temperature condition (June , July and August).
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 7
Claim · model-written summary
Potassium and ethephon treatments significantly influenced studied squash characters.
- Taxon
- squashe0
- Treatment
- foliar application of potassium and ethephone0
- Outcome
- studied characterse0
- Comparator
- untreated plantse0
Not reportedDirection
Verbatim
e0“treated squash plants with foliar application of potassium and ethephon separately or in combination significantly influenced the studied characters compared to untreated plants in both seasons.”
Claim · model-written summary
The 2 ml K2O plus 250 ppm ethephon treatment maximized leaves and plant fresh and dry weight.
- Taxon
- SQUASHt0
- Treatment
- 2 ml K2Ol-1+ 250 ppm ethephone0
- Outcome
- number of leaves, fresh and dry weight per plante0
- Direction
- maximume0
Not reportedComparator
Verbatim
e0“spraying plants with 2 ml K2Ol-1+ 250 ppm ethephon gave the maximum values of most growth characteristics, i.e. number of leaves, fresh and dry weight per plant.”
t0“SQUASH”
t1“potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm”
Claim · model-written summary
The 250 ppm ethephon combination reduced male flowers and sex ratio.
- Taxon
- SQUASHt0
- Treatment
- 2 ml K2O l-1 +250 or 350 ppm ethephone0
- Outcome
- number of male flowers and sex ratioe0
- Direction
- decreasinge0
Not reportedComparator
Verbatim
e0“the treatment with 2 ml K2O l-1 +250 or 350 ppm ethephon recorded the best results of floral traits by decreasing the number of male flowers and sex ratio”
t0“SQUASH”
t1“potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm”
Claim · model-written summary
The combination increased female flowers and femaleness.
- Taxon
- SQUASHt0
- Treatment
- potassium at 2ml K2O l-1 +ethephon at 250 or 350ppmt1
- Outcome
- number of female flowers, femalenesse0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“increased number of female flowers, femaleness as well as yield and its components”
t0“SQUASH”
t1“potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm”
Claim · model-written summary
The combination increased fruit number and fruit fresh weight.
- Taxon
- SQUASHt0
- Treatment
- potassium at 2ml K2O l-1 +ethephon at 250 or 350ppmt1
- Outcome
- number of fruits /plant, fresh weight of fruite0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“increased number of female flowers, femaleness as well as yield and its components ,i.e. number of fruits /plant, fresh weight of fruit ,early and total yield per plot.”
t0“SQUASH”
t1“potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm”
Claim · model-written summary
The combination increased early and total yield per plot.
- Taxon
- SQUASHt0
- Treatment
- potassium at 2ml K2O l-1 +ethephon at 250 or 350ppmt1
- Outcome
- early and total yield per plote0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“increased number of female flowers, femaleness as well as yield and its components ,i.e. number of fruits /plant, fresh weight of fruit ,early and total yield per plot.”
t0“SQUASH”
t1“potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm”
Claim · model-written summary
The authors recommend potassium plus 250 or 350 ppm ethephon for squash under high summer temperatures.
Verbatim
e0“foliar application of potassium at 2ml K2O l-1 +ethephon at 250 or 350ppm proved to be the best choice for growing and improving sex-expression by increasing number of female flowers and consequently the yield of plants when squash grown under high summer temperature condition”
The same questions in other papers
(2-chloroethyl)phosphonic acid · yield · Cucurbita (pumpkins)Results differ
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →(2-chloroethyl)phosphonic acid · growth · Cucurbita (pumpkins)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
(2-chloroethyl)phosphonic acid · phenology · Cucurbita (pumpkins)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →potassium · yield · Cucurbita (pumpkins)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
4 papers more in this group
See all 8 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.