Abstract
In order to study the effect of irrigation intervals and planting pattern on the morphological and qualitative traits of forage sorghum was conducted an experiment was conducted at Agricultural Research Station of Azad University, Birjand Branch, Iran in year 2006. The experimental design was split plot in form RCBD with three replications and with 4 levels of irrigation interval (5, 10, 15 and 20 days) as main plots and 2 levels of planting pattern (one row above the furrow and two rows within the furrow) as sub plots. The results showed that the effect of planting pattern and interaction irrigation interval × planting pattern on these traits was not significant but water deficit stress decreased height, diameter, number leaf of main stem and number of tiller in plant, significantly so that with increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively. Also, irrigation interval had a significant effect on the percentage of crude protein, crude fiber, ash and protein yield of the first and second cut. The comparison of mentioned traits average showed that with the increase of irrigation interval, the percentage of crude protein, crude fiber and ash percent decreased in both cuttings significantly. In the first cut, 5 days irrigation interval with the production of 0.90 ton/ha had the highest yield of protein and 20 days irrigation interval with 0.411 ton/ha had the lowest yield of protein. Also in the second cutting the increase of the irrigation interval from 5 to 20 days caused crude protein yield decreased from 1.2 to 0.2 ton/ha. The results showed that the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage but with respect to water limitation and intense need to forage in the region, in order to scrounge in the amount of consumption water in the level unit and increase of under cultivation lands, we can use 10 days irrigation interval for the planting of forage sorghum in Birdjand region.
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Claims 14
Claim · model-written summary
Planting pattern and its interaction with irrigation interval had no significant effect on the morphological and qualitative traits of forage sorghum.
Verbatim
e1“the effect of planting pattern and interaction irrigation interval × planting pattern on these traits was not significant”
t0“forage sorghum”
Claim · model-written summary
Plant height of forage sorghum was reduced by 26.6% in the first cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Leaf number per main stem of forage sorghum was reduced by 23.2% in the first cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Stem diameter of forage sorghum was reduced by 28.5% in the first cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Plant height of forage sorghum was reduced by 55.8% in the second cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Leaf number per main stem of forage sorghum was reduced by 40.2% in the second cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Stem diameter of forage sorghum was reduced by 40.1% in the second cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Tiller number per plant of forage sorghum was reduced by 17.65% in the second cut as irrigation interval increased from 5 to 20 days.
Verbatim
e2“increasing irrigation interval from5 to 20 days, plant height, leaf number per main stem and stem diameter in the first cut reduced 26.6, 23.2 and 28.5 percent, respectively and in the second cut, these traits and tiller number per plant declined 55.8, 40.2, 40.1 and 17.65 percent, respectively”
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
Crude protein, crude fiber and ash percentages of forage sorghum decreased significantly in both cuttings as irrigation interval increased.
Verbatim
e4“with the increase of irrigation interval, the percentage of crude protein, crude fiber and ash percent decreased in both cuttings significantly”
t0“forage sorghum”
Claim · model-written summary
In the first cut, the 5 day irrigation interval gave the highest protein yield of forage sorghum, 0.90 ton/ha.
Verbatim
e6“In the first cut, 5 days irrigation interval with the production of 0.90 ton/ha had the highest yield of protein”
t0“forage sorghum”
Claim · model-written summary
In the first cut, the 20 day irrigation interval gave the lowest protein yield of forage sorghum, 0.411 ton/ha.
Verbatim
e6“In the first cut, 5 days irrigation interval with the production of 0.90 ton/ha had the highest yield of protein”
e7“20 days irrigation interval with 0.411 ton/ha had the lowest yield of protein”
t0“forage sorghum”
Claim · model-written summary
Crude protein yield of forage sorghum decreased from 1.2 to 0.2 ton/ha in the second cutting as irrigation interval increased from 5 to 20 days.
Verbatim
e1“in the second cutting the increase of the irrigation interval from 5 to 20 days caused crude protein yield decreased from 1.2 to 0.2 ton/ha”
t0“forage sorghum”
Claim · model-written summary
The 5 day irrigation interval gave forage sorghum the highest vegetative growth, yield and forage quality.
Verbatim
e5“the 5 days irrigation interval allocated to itself the highest vegetative growth, yield and more quality of forage”
t0“forage sorghum”
Claim · model-written summary
The authors recommend a 10 day irrigation interval for planting forage sorghum in the Birjand region.
Verbatim
e1“we can use 10 days irrigation interval for the planting of forage sorghum in Birdjand region”
t0“forage sorghum”
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