Abstract
Two field experiments were carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate during the two successive seasons of 2015 and 2016. These experiments were conducted to find out the proper irrigation interval and the effect of natural material which reduce the negative effect of water stress as well as their interaction on leaf chemical composition, growth, flowering habit, earliness parameters, seed cotton yield and its components and fiber quality of the Egyptian cotton cultivar Giza 86. A split plot design with three replicates was used in both seasons, where the main plots were assigned to three irrigation intervals (15, 30 and 45 days) and the sub-plots contained natural materials (without, glycine betaine (600 ppm), potassium citrate (3g/l) and salsalic acid (200 ppm) The important results could be summarized as follows: Irrigating intervals gave significant effect on leaf total chlorophyll, carotenoids, phenols and proline content at 114 days, when irrigated every 45 days followed by irrigated every 30 and 15 day in a descending order. Irrigation every 15 days significantly increased plant height at harvest, number of fruiting branches/plant, number of flowers/plant, boll weight and decreased setting and earliness percentages in both seasons as compared with the other two irrigation intervals (every 30 and 45 days). However, the higher number of open bolls/plant and seed cotton yield / fed were obtained from plants which irrigated every 30 days. Irrigation intervals had insignificant effect on seed index and significant effect on lint % in both seasons. The highest value of lint % was resulted from irrigated plants every 45 days. Spraying with natural materials significantly affected leaf total chlorophyll, phenols and proline content, in favor of spraying potassium citrate and significantly affected leaf carotenoids content at, in favor of spraying salsalic acidSpraying with natural materials significantly affected boll weight and number of open bolls/plant in both seasons in favor of spraying glycine betaine and potassium citrate. Application of salsalic acid or glycine betaine gave significant increase in lint % and insignificant effect on seed index in both seasons. Spraying cotton plants with glycine betaine lead to a significant increase in seed cotton yield per fed.Untreated Plants caused a significant increase in plant height at harvest and number of fruiting branches/plant in both seasons as compared with the plants which received glycine betaine, potassium citrate and salsalic acid. Concerning the interaction between irrigation intervals and natural materials, there is a significant interaction effect with regard to leaf total chlorophyll, carotenoids, phenols and proline contents, in favor of irrigated cotton plants every 45 days and spraying with potassium citrate for leaf total chlorophyll, phenols and proline contents and in favor of irrigated cotton plants every 45 days and spraying with salsalic acid for leaf carotenoids content. Irrigation every 30 days and spraying with potassium citrate produced the highest values of lint % in both seasons. The interaction gave insignificant effect on seed index, Presley index and micronaire reading in both seasons. The combined treatment of irrigation interval every 30 days when combined with glycine betaine at the concentration (600 ppm) gave significant increase in seed cotton yield / fed (kentar) in both seasons. The flowering curve in irrigation every 30 and 45 days was higher, start earlier and ending earlier as compared to the flowering curves in the irrigation every 15 days. It could be concluding that irrigation cotton plants every 30 days in combination with spraying with glycine betaine (600 ppm) or potassium citrate (3g/l) three times (at the squaring stage, flowering stage and at the top of flowering) under El-Gemmeiza condition). Also, it could be concluding that irrigation every 45 days in combination with glycine betaine (600 ppm) at the end of water sources and water shortage.
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Claims 20
Claim · model-written summary
Irrigation every 45 days gave the highest leaf chlorophyll, carotenoids, phenols and proline content.
- Taxon
- Cotton Plant
Gossypium hirsutumt0 - Organ / stage
- leafe0
- Treatment
- irrigated every 45 dayse0
- Outcome
- leaf total chlorophyll, carotenoids, phenols and proline contente0
- Direction
- descending ordere0
- Comparator
- irrigated every 30 and 15 daye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigating intervals gave significant effect on leaf total chlorophyll, carotenoids, phenols and proline content at 114 days, when irrigated every 45 days followed by irrigated every 30 and 15 day in a descending order”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 15 days increased plant height, fruiting branches and flower number.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- Irrigation every 15 dayse0
- Outcome
- plant height at harvest, number of fruiting branches/plant, number of flowers/plante0
- Direction
- increasede0
- Comparator
- every 30 and 45 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation every 15 days significantly increased plant height at harvest, number of fruiting branches/plant, number of flowers/plant, boll weight and decreased setting and earliness percentages in both seasons as compared with the other two irrigation intervals (every 30 and 45 days)”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 15 days increased boll weight.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- Irrigation every 15 dayse0
- Outcome
- boll weighte0
- Direction
- increasede0
- Comparator
- every 30 and 45 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation every 15 days significantly increased plant height at harvest, number of fruiting branches/plant, number of flowers/plant, boll weight and decreased setting and earliness percentages in both seasons as compared with the other two irrigation intervals (every 30 and 45 days)”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 15 days decreased setting and earliness percentages.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- Irrigation every 15 dayse0
- Outcome
- setting and earliness percentagese0
- Direction
- decreasede0
- Comparator
- every 30 and 45 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation every 15 days significantly increased plant height at harvest, number of fruiting branches/plant, number of flowers/plant, boll weight and decreased setting and earliness percentages in both seasons as compared with the other two irrigation intervals (every 30 and 45 days)”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 30 days gave more open bolls and seed cotton yield.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- irrigated every 30 dayse0
- Outcome
- number of open bolls/plant and seed cotton yield / fede0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the higher number of open bolls/plant and seed cotton yield / fed were obtained from plants which irrigated every 30 days”
t0“Cotton Plant”
Claim · model-written summary
Irrigation interval had no significant effect on seed index.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Outcome
- seed indexe0
- Direction
- insignificant effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation intervals had insignificant effect on seed index”
t0“Cotton Plant”
Claim · model-written summary
The highest lint percentage followed irrigation every 45 days.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- irrigated plants every 45 dayse0
- Outcome
- lint %e0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest value of lint % was resulted from irrigated plants every 45 days”
t0“Cotton Plant”
Claim · model-written summary
Potassium citrate spraying favored leaf chlorophyll, phenols and proline content.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying potassium citratee0
- Outcome
- leaf total chlorophyll, phenols and proline contente0
- Direction
- in favor ofe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying with natural materials significantly affected leaf total chlorophyll, phenols and proline content, in favor of spraying potassium citrate”
t0“Cotton Plant”
Claim · model-written summary
Salicylic acid spraying favored leaf carotenoid content.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying salsalic acide0
- Outcome
- leaf carotenoids contente0
- Direction
- in favor ofe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly affected leaf carotenoids content at, in favor of spraying salsalic acid”
t0“Cotton Plant”
Claim · model-written summary
Glycine betaine and potassium citrate spraying favored boll weight and open boll number.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying glycine betaine and potassium citratee0
- Outcome
- boll weight and number of open bolls/plante0
- Direction
- in favor ofe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying with natural materials significantly affected boll weight and number of open bolls/plant in both seasons in favor of spraying glycine betaine and potassium citrate”
t0“Cotton Plant”
Claim · model-written summary
Salicylic acid or glycine betaine increased lint percentage.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- salsalic acid or glycine betainee0
- Outcome
- lint %e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of salsalic acid or glycine betaine gave significant increase in lint %”
t0“Cotton Plant”
Claim · model-written summary
Salicylic acid or glycine betaine had no significant effect on seed index.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Outcome
- seed indexe0
- Direction
- insignificant effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insignificant effect on seed index in both seasons”
t0“Cotton Plant”
Claim · model-written summary
Glycine betaine spraying increased seed cotton yield.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- glycine betainee0
- Outcome
- seed cotton yield per fede0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying cotton plants with glycine betaine lead to a significant increase in seed cotton yield per fed”
t0“Cotton Plant”
Claim · model-written summary
Untreated plants had greater height and fruiting branch number than sprayed plants.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Outcome
- plant height at harvest and number of fruiting branches/plante0
- Direction
- increasee0
- Comparator
- plants which received glycine betaine, potassium citrate and salsalic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Untreated Plants caused a significant increase in plant height at harvest and number of fruiting branches/plant in both seasons as compared with the plants which received glycine betaine, potassium citrate and salsalic acid”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 45 days with potassium citrate favored leaf chlorophyll, phenols and proline.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying with potassium citratee0
- Outcome
- leaf total chlorophyll, phenols and proline contentse0
- Direction
- in favor ofe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in favor of irrigated cotton plants every 45 days and spraying with potassium citrate for leaf total chlorophyll, phenols and proline contents”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 45 days with salicylic acid favored leaf carotenoids.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying with salsalic acide0
- Outcome
- leaf carotenoids contente0
- Direction
- in favor ofe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in favor of irrigated cotton plants every 45 days and spraying with salsalic acid for leaf carotenoids content”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 30 days with potassium citrate produced the highest lint percentage.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- spraying with potassium citratee0
- Outcome
- lint %e0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation every 30 days and spraying with potassium citrate produced the highest values of lint % in both seasons”
t0“Cotton Plant”
Claim · model-written summary
Irrigation and spray interaction had no significant effect on seed index, Presley index or micronaire reading.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Outcome
- seed index, Presley index and micronaire readinge0
- Direction
- insignificant effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction gave insignificant effect on seed index, Presley index and micronaire reading in both seasons”
t0“Cotton Plant”
Claim · model-written summary
Irrigation every 30 days with glycine betaine increased seed cotton yield.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Treatment
- glycine betaine at the concentration (600 ppm)e0
- Outcome
- seed cotton yield / fed (kentar)e0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation interval every 30 days when combined with glycine betaine at the concentration (600 ppm) gave significant increase in seed cotton yield / fed (kentar)”
t0“Cotton Plant”
Claim · model-written summary
Flowering curves under 30- and 45-day irrigation were higher and earlier than under 15-day irrigation.
- Taxon
- Cotton PlantGossypium hirsutumt0
- Outcome
- flowering curvee0
- Direction
- highere0
- Comparator
- irrigation every 15 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The flowering curve in irrigation every 30 and 45 days was higher, start earlier and ending earlier as compared to the flowering curves in the irrigation every 15 days”
t0“Cotton Plant”
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glycine betaine · yield · Gossypium hirsutum (cotton)Results differ
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- no effect
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See all 33 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.