THE EFFECT OF IRRIGATION WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF COTTON VARIETIES

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GHORBANI NASRABAD G.; HEZARJARIBI A.

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Journal: Iranian Journal of Irrigation and Drainage Year:2008 | Volume:2 | Issue:2 Page(s): 53-59

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Title

THE EFFECT OF IRRIGATION WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF COTTON VARIETIES

Author(s)

GHORBANI NASRABAD G. | HEZARJARIBI A. | Issue Writer Certificate

Keywords

SPRINKLER IRRIGATIONQ3

COTTONQ3

DEFICIT IRRIGATIONQ3

AND WATER STRESSQ3

Abstract

Cotton is the plant that shows different response to amount of irrigation water so that increasing of water not only causes increasing the yield but also sometimes decreasing the yield. This experiment was conducted by SPRINKLER IRRIGATION system as line-source because of water shortage in Golestan provience, necessity of optimum use of water unit and effects of water deficit on yield and yield components. Since distribution: of sprinkler water was triangular, six irrigation treatments of 11, 12, 13, 14, 15 and 16 was assumed in two side of sprinkler line as parallel and 2.5m distance, so that 11 and 16 treatments received highest and lowest water amount, respectively. The amount of received water in 12 treatment was equal to water requirement. Therefore, irrigation levels treatments were 125, 100, 73, 60, 39 and 20% of water requirement. COTTON varieties of Sahel, Sepid and 818- 312 were planted by distance 20cm on planting rows and 80cm between rows. The experimemtal design was strip split plot with 3 replications. The results showed that highest yield was belonged to 13 treatment with 3365 kg/ha in 2001 year and 2043 kg/ha in 2002 year. There was significant difference between 13 treatment with 14, 15, and 16 treatments in the first year and all treatments in the second year on view of the yield. Increasing and over decreasing of amount of irrigation water decreased the yield. The yield of Sepid varietiy was 17.9% higher than two other varieties in the first year and 15% higher than Sahel varietiy in the second year. Difference between three varieties on view of earliness percentage was not significant and also on view of boll weight in the first year was not significant but in the second year it was significant. The highest boll weight was belonged to 13 treatment and treatment 16 had highest earliness percentage. Water use in 13 treatment was 27% less than water requirement. Ultimately, the best treatment and variety on view of yield, yield components and water use saving was 13 irrigation treatment which used 73% of water requirement and sepid varietiy.

Cites

EFFECT OF DEFICIT IRRIGATION ON YIELD, YIELD COMPONENTS, AND WATER USE EFFICIENCY OF CORN UNDER DRIP IRRIGATION

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APA: Copy

GHORBANI NASRABAD, G., & HEZARJARIBI, A.. (2008). THE EFFECT OF IRRIGATION WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF COTTON VARIETIES. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 2(2), 53-59. SID. https://sid.ir/paper/131437/en

Vancouver: Copy

GHORBANI NASRABAD G., HEZARJARIBI A.. THE EFFECT OF IRRIGATION WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF COTTON VARIETIES. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2008;2(2):53-59. Available from: https://sid.ir/paper/131437/en

IEEE: Copy

G. GHORBANI NASRABAD, and A. HEZARJARIBI, “THE EFFECT OF IRRIGATION WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF COTTON VARIETIES,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 2, no. 2, pp. 53–59, 2008, [Online]. Available: https://sid.ir/paper/131437/en

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