Abstract
FARMERS are often unable to determine the effect of different environmental stress on growth and development of cotton plants. So, the experiment conducted through a wide range of thermal changes by planting cotton at different dates. This work aimed to performance evaluation of some Egyptian cotton genotypes i.e., Giza 90, Giza 90 x Aust. and Giza 95 under different thermal units related to different planting dates i.e., 1st April, 16th April and 1st May.The results demonstrated that late planting led to decreasing plant height, number of leaves/plant and leaf area/plant. Number of fruiting/plant increased in early planting due to lowered of node of the first sympodium and inducing early balance between vegetative and fruiting. Low temperatures at the beginning of the season and the decrease the number of thermal units in early planting led to increase concentration of chlorophyll a, b and carotenoids in leaves and increase earliness index. Late planting produced the first flower and first open boll in shorter period as compared to early planting, but it consumed more number of heat units. Yield and its quality have increased in early planting where utilized the heat units in producing the highest number of open bolls and enhance cotton fiber properties conversely late planting which used most of the heat units in increasing the vegetative growth. Giza 95 surpassed in all studied characters compared to other genotypes. The efficiency of Egyptian cotton genotypes particularly Giza 95 for use of air thermal units increased in early planting. From the results above, it could be concluded that early planting maximized of the use of heat units by increasing the efficiency use of air thermal units through the growing season which lowered the amount of heat units for necessary production one boll.
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Claims 12
Claim · model-written summary
Late planting reduced cotton plant height, leaf number and leaf area.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- late plantinge0
- Outcome
- plant height, number of leaves/plant and leaf area/plante0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“late planting led to decreasing plant height, number of leaves/plant and leaf area/plant”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting increased fruiting number per cotton plant.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- Number of fruiting/plante0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of fruiting/plant increased in early planting”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting increased chlorophyll a, b and carotenoid concentration in cotton leaves.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- concentration of chlorophyll a, b and carotenoids in leavese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting led to increase concentration of chlorophyll a, b and carotenoids in leaves”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting increased the cotton earliness index.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- earliness indexe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting led to increase concentration of chlorophyll a, b and carotenoids in leaves and increase earliness index”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Late planting shortened the time to first flower and first open boll relative to early planting.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Late plantinge0
- Outcome
- first flower and first open bolle0
- Direction
- shortere0
- Comparator
- early plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late planting produced the first flower and first open boll in shorter period as compared to early planting”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Late planting consumed more heat units than early planting.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Late plantinge0
- Outcome
- number of heat unitse0
- Direction
- moree0
- Comparator
- early plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late planting produced the first flower and first open boll in shorter period as compared to early planting, but it consumed more number of heat units”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting increased cotton yield and quality.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- Yield and its qualitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and its quality have increased in early planting”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting produced the highest number of open cotton bolls.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- number of open bollse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting where utilized the heat units in producing the highest number of open bolls”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting enhanced cotton fiber properties.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- cotton fiber propertiese0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting where utilized the heat units in producing the highest number of open bolls and enhance cotton fiber properties”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Giza 95 surpassed the other cotton genotypes in all studied characters.
- Taxon
- cottonGossypium hirsutume1
- Material
- Giza 95e0
- Outcome
- all studied characterse0
- Direction
- surpassede0
- Comparator
- other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Giza 95 surpassed in all studied characters compared to other genotypes”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting improved thermal-unit use efficiency of Egyptian cotton genotypes, especially Giza 95.
- Taxon
- cottonGossypium hirsutume1
- Material
- Giza 95e0
- Treatment
- early plantinge0
- Outcome
- efficiency of Egyptian cotton genotypes particularly Giza 95 for use of air thermal unitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The efficiency of Egyptian cotton genotypes particularly Giza 95 for use of air thermal units increased in early planting”
t0“Cotton”
e1“growth and development of cotton plants”
Claim · model-written summary
Early planting lowered the thermal units needed to produce one cotton boll.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- early plantinge0
- Outcome
- amount of heat units for necessary production one bolle0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting maximized of the use of heat units by increasing the efficiency use of air thermal units through the growing season which lowered the amount of heat units for necessary production one boll”
t0“Cotton”
e1“growth and development of cotton plants”
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