Abstract
This investigation was carried out at El-Serw Agricultural Research Station, Damietta Governorate and Mansura unit Research during 2005 and 2006 seasons to study the purpose was to the effect of irrigation intervals i.e 14, 21 and 28 days and potassium fertilizer rates i.e 0, 24 and 48 Kg K2O/feddan on yield and seed quality of five grain sorghum cultivars, i.e. Dorado, Giza 113, Giza 15, Shandawheel - 2 and Shandawheel - 6. The experiment was laid out in a split plot design with three replicates. Results showed that prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight, seed index, grain yield/ feddan and seed quality traits, as well as germination percentage and rate, plumule length, radical length, seedling dry weight, accelerated aging and electrical conductivity of the produced grains in both seasons. Irrigation at 28 days interval caused 30.91% and 30.41% reduction in grain yield per feddan in 2005 and 2006 seasons, respectively, compared with that of 14 days interval. Increasing potassium fertilizer rate up to 48 Kg K2O/feddan increased all studied traits. Applying potassium at the rate of 48 Kg K2O/feddan gave 15.31% and 15.32% increase in grain yield/ feddan compared with unfertilized plants in 2005 and 2006 seasons, respectively. Grain sorghum cultivars differed in grain yield and all studied traits in both seasons. Hybrid Shandawheel 6 was superior in grain yield per feddan compared to other tested varieties in both seasons. The interaction effects were significant on almost studied traits in both seasons. Generally, it could be concluded that sowing hybrid Shandawheel- 6 and fertilized with 48 Kg K2O /feddan plays a prominent role in increasing grain yield/ feddan and quality of produced seeds under irrigation water shortage (14 days interval) in North delta of Egypt.
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Claims 14
Claim · model-written summary
Longer irrigation intervals decreased days to 50% heading, panicle weight and panicle grain weight.
- Treatment
- prolonging irrigation intervalse0
- Outcome
- number of days to 50% heading, panicle weight, panicle grain weighte0
- Direction
- decreasede0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Longer irrigation intervals decreased seed index, grain yield and seed quality traits.
- Treatment
- prolonging irrigation intervalse0
- Outcome
- seed index, grain yield/ feddan and seed quality traitse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight, seed index, grain yield/ feddan and seed quality traits”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Longer irrigation intervals decreased germination percentage and rate, and plumule length.
- Treatment
- prolonging irrigation intervalse0
- Outcome
- germination percentage and rate, plumule lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight, seed index, grain yield/ feddan and seed quality traits, as well as germination percentage and rate, plumule length”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Longer irrigation intervals decreased radical length, seedling dry weight and accelerated aging.
- Treatment
- prolonging irrigation intervalse0
- Outcome
- radical length, seedling dry weight, accelerated aginge0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight, seed index, grain yield/ feddan and seed quality traits, as well as germination percentage and rate, plumule length, radical length, seedling dry weight, accelerated aging”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Longer irrigation intervals decreased electrical conductivity of the produced grains.
- Treatment
- prolonging irrigation intervalse0
- Outcome
- electrical conductivity of the produced grainse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging irrigation intervals decreased number of days to 50% heading, panicle weight, panicle grain weight, seed index, grain yield/ feddan and seed quality traits, as well as germination percentage and rate, plumule length, radical length, seedling dry weight, accelerated aging and electrical conductivity of the produced grains”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
A 28-day irrigation interval reduced grain yield per feddan by 30.91% in 2005 compared with 14 days.
- Treatment
- Irrigation at 28 days intervale0
- Outcome
- grain yield per feddane0
- Direction
- reductione0
- Value
- 30.91%e0
- Qualifier
- 2005e0
- Comparator
- 14 days intervale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 28 days interval caused 30.91% and 30.41% reduction in grain yield per feddan in 2005 and 2006 seasons, respectively, compared with that of 14 days interval”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
A 28-day irrigation interval reduced grain yield per feddan by 30.41% in 2006 compared with 14 days.
- Treatment
- Irrigation at 28 days intervale0
- Outcome
- grain yield per feddane0
- Direction
- reductione0
- Value
- 30.41%e0
- Qualifier
- 2006e0
- Comparator
- 14 days intervale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 28 days interval caused 30.91% and 30.41% reduction in grain yield per feddan in 2005 and 2006 seasons, respectively, compared with that of 14 days interval”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Increasing potassium fertilizer to 48 Kg K2O/feddan increased all studied traits.
- Treatment
- potassium fertilizer rate up to 48 Kg K2O/feddane0
- Outcome
- all studied traitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing potassium fertilizer rate up to 48 Kg K2O/feddan increased all studied traits”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Potassium at 48 Kg K2O/feddan increased grain yield by 15.31% in 2005 relative to unfertilized plants.
- Treatment
- potassium at the rate of 48 Kg K2O/feddane0
- Outcome
- grain yield/ feddane0
- Direction
- increasee0
- Value
- 15.31%e0
- Qualifier
- 2005e0
- Comparator
- unfertilized plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying potassium at the rate of 48 Kg K2O/feddan gave 15.31% and 15.32% increase in grain yield/ feddan compared with unfertilized plants in 2005 and 2006 seasons, respectively”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Potassium at 48 Kg K2O/feddan increased grain yield by 15.32% in 2006 relative to unfertilized plants.
- Treatment
- potassium at the rate of 48 Kg K2O/feddane0
- Outcome
- grain yield/ feddane0
- Direction
- increasee0
- Value
- 15.32%e0
- Qualifier
- 2006e0
- Comparator
- unfertilized plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying potassium at the rate of 48 Kg K2O/feddan gave 15.31% and 15.32% increase in grain yield/ feddan compared with unfertilized plants in 2005 and 2006 seasons, respectively”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
Grain sorghum cultivars differed in yield and all studied traits in both seasons.
- Taxon
- Grain sorghum
Sorghum bicolore0 - Outcome
- grain yield and all studied traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain sorghum cultivars differed in grain yield and all studied traits in both seasons”
Claim · model-written summary
Hybrid Shandawheel 6 had superior grain yield per feddan to other tested varieties in both seasons.
- Material
- Hybrid Shandawheel 6e0
- Outcome
- grain yield per feddane0
- Direction
- superiore0
- Comparator
- other tested varietiese0
Not reportedTaxon
Verbatim
e0“Hybrid Shandawheel 6 was superior in grain yield per feddan compared to other tested varieties in both seasons”
Claim · model-written summary
Irrigation and potassium interaction effects were significant for almost all studied traits in both seasons.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction effects were significant on almost studied traits in both seasons”
e1“irrigation intervals i.e 14, 21 and 28 days and potassium fertilizer rates i.e 0, 24 and 48 Kg K2O/feddan”
t0“SORGHUM CULTIVARS”
Claim · model-written summary
The authors recommend Shandawheel- 6 with 48 Kg K2O /feddan to increase yield and seed quality under irrigation water shortage.
- Material
- hybrid Shandawheel- 6e0
- Treatment
- 48 Kg K2O /feddane0
- Outcome
- increasing grain yield/ feddan and quality of produced seedse0
- Setting
- North delta of Egypte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sowing hybrid Shandawheel- 6 and fertilized with 48 Kg K2O /feddan plays a prominent role in increasing grain yield/ feddan and quality of produced seeds under irrigation water shortage (14 days interval) in North delta of Egypt”
t0“SORGHUM CULTIVARS”
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