IRRIGATION TIME AND WATER SALINITY EFFECTS ON WHEAT YIELD AND ITS COMPONENTS IN THE SOUTH OF KHOUZESTAN PROVINCE

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KAB OMEIR ABD ALVAHED; JAFARI HAGHIGHI B.; GOUSHEH MAHI ALDIN

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Journal: CROP PHYSIOLOGY Year:2010 | Volume:1 | Issue:4 Page(s): 3-16

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Title

IRRIGATION TIME AND WATER SALINITY EFFECTS ON WHEAT YIELD AND ITS COMPONENTS IN THE SOUTH OF KHOUZESTAN PROVINCE

Author(s)

KAB OMEIR ABD ALVAHED | JAFARI HAGHIGHI B. | GOUSHEH MAHI ALDIN | Issue Writer Certificate

Keywords

WHEATQ3

IRRIGATION TIMEQ2

WATER SALINITYQ3

Abstract

The effect of IRRIGATION TIME and Electric Conductivity (EC) of irrigation water have been investigated on WHEAT yield (Chamran cultivar) and its components in Shavour area, north of Ahwaz city in 2009. Objectives of this research studied are 1) The determination of the most suitable IRRIGATION TIME in saline conditions 2) Study the effect of different water salinities 3) The study of interaction effect of IRRIGATION TIME and WATER SALINITY on WHEAT yield and its components. The experiment was conducted as a factorial form, in a Randomized Completely Block Design (RCBD) with two factors and three replications. Three different levels of IRRIGATION TIME were (I1) 30%, (I2) 50% and (I3) 70% soil moisture reduction from Field Capacity limit. Three levels of irrigation salinity were (S1) less than 2, (S2) 3-5, and (S3) 6-8 ds/m as well. The first and second factors were irrigation regimes and salinity in field conditions respectively. Results indicated that WHEAT yield under effect of different regimes of irrigation was significant (5%), whereas the effect of different levels of salinity on yield was not significant. Taking account of yield components, different regimes of irrigation were not significant on plant height, number of spikes per square meter and the length of spike; however it was significant for number of grains per spike and Thousand Grains Weight (TGW). WATER SALINITY had no significant effect on yield and its components. The interaction effects of salinity and IRRIGATION TIME were not significant on yield, TGW and number of grains per spike; however there was no significant effect on other factors. As a result, although two factors of IRRIGATION TIME and WATER SALINITY had significant effect on soil salinity changes, however, the maximum soil salinity obtained from irrigation with different levels of salinity (6-8 ds/m) is related to I2S3 treatment that is the threshold of WHEAT salinity tolerance. Therefore yield reduction is not expected. Thus yield has been the only effective factor in making decision for the better treatment. According to studies, IRRIGATION TIME due to 30% allowable depletion of moisture from Field Capacity limit has been optimum with only salinity level up to 8 ds/m (treatments I1S1, I1S2, I1S3).

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APA: Copy

KAB OMEIR, ABD ALVAHED, JAFARI HAGHIGHI, B., & GOUSHEH, MAHI ALDIN. (2010). IRRIGATION TIME AND WATER SALINITY EFFECTS ON WHEAT YIELD AND ITS COMPONENTS IN THE SOUTH OF KHOUZESTAN PROVINCE. CROP PHYSIOLOGY, 1(4), 3-16. SID. https://sid.ir/paper/174500/en

Vancouver: Copy

KAB OMEIR ABD ALVAHED, JAFARI HAGHIGHI B., GOUSHEH MAHI ALDIN. IRRIGATION TIME AND WATER SALINITY EFFECTS ON WHEAT YIELD AND ITS COMPONENTS IN THE SOUTH OF KHOUZESTAN PROVINCE. CROP PHYSIOLOGY[Internet]. 2010;1(4):3-16. Available from: https://sid.ir/paper/174500/en

IEEE: Copy

ABD ALVAHED KAB OMEIR, B. JAFARI HAGHIGHI, and MAHI ALDIN GOUSHEH, “IRRIGATION TIME AND WATER SALINITY EFFECTS ON WHEAT YIELD AND ITS COMPONENTS IN THE SOUTH OF KHOUZESTAN PROVINCE,” CROP PHYSIOLOGY, vol. 1, no. 4, pp. 3–16, 2010, [Online]. Available: https://sid.ir/paper/174500/en

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