EFFECTS OF SALINITY AND IRRIGATION REGIMES ON YIELD, YIELD COMPONENTS AND SEED PROTEIN IN TWO WHEAT CULTIVARS

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ZAMANI G.R.; KASHKULI H.A.; SHAHIDI A.; GHORAYSHI S.G.R.

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Journal: AGRICULTURAL RESEARCH Year:2007 | Volume:7 | Issue:2 Page(s): 55-66

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Title

EFFECTS OF SALINITY AND IRRIGATION REGIMES ON YIELD, YIELD COMPONENTS AND SEED PROTEIN IN TWO WHEAT CULTIVARS

Author(s)

ZAMANI G.R. | KASHKULI H.A. | SHAHIDI A. | GHORAYSHI S.G.R. | Issue Writer Certificate

Keywords

DEFICIT IRRIGATIONQ3

GRAIN PROTEINQ2

SALINITYQ2

SOUTHERN KHORASANQ2

WHEATQ2

YIELDQ2

Abstract

In the dry regions like "Southern Khorasan Province", irrigation has a great role for productivity, but, since in the use water of irrigation in these regions mainly has the solution salts, therefore, the effect of SALINITY on the growth of plant must be analyzed simultaneously. In order to study the effects of SALINITY and irrigation regimes on YIELD, YIELD components and seed protein in WHEAT cultivars, an experiment was conducted in 2005-2006 with three replication. The experimental design was factorial complete block split plot in which SALINITY with three levels (1.4, 4.5 and 9.6dS/m of irrigation water) were used as the main plot and four irrigation regimes (50, 75, 100 and 125 percent of depth of water requirement) and WHEAT cultivar ((Ghods & Roshan) as factorial were as sub plot. Result showed, seed YIELD, 1000 seed weight, biological YIELD, harvest index and percentage of protein were' significantly affected by SALINITY. But, number of spike per square meter, number of seed per spike and height of plant were not affected by SALINITY. Also, seed YIELD, biological YIELD, harvest index percentage of protein, 1000 seed weight and number of spike per square meter were significantly affected by DEFICIT IRRIGATION, but, height of plant and number of seed per spike were not significantly affected. In this experiment we found that seed YIELD, 1000 seed weight, height of plant, biological YIELD, harvest index, number of seed per spike and percentage of protein were significantly affected by cultivars, but, number of spike per square meter were not significantly affected. The interaction of SALINITY and DEFICIT IRRIGATION (S*I) had not any significant effect on each of factors of YIELD and component YIELD, so we can conclude that aggregative effect of SALINITY and DEFICIT IRRIGATION (on the decreasing of YIELD) is less than summation of effects of each on of them. Increasing SALINITY or land DEFICIT IRRIGATION had an increasingly effect on ' percentage of protein of grain in both cultivars of WHEAT, although, the effect of DEFICIT IRRIGATION was more than SALINITY effect. There was no significant difference of grain YIELD and number of spike/m2 in the treatments of 100% and 125% of depth of water requirement, we can say that additional irrigation more than plant requirement, (I4, 125% of depth of water requirement of plant) had not significant effect on these parameters, whereas, averages of biological YIELD was higher in I4, we can conclude that, increasing the applicable water (more than 100% of depth of water requirement of plant), cause increasing in vegetation growth rather than increasing of grain YIELD. YIELD and percent of GRAIN PROTEIN of Roshn WHEAT, were respectively 26% and 5% more than Ghods WHEAT, so that, Roshan WHEAT was quantitatively and qualitatively proportional to both DEFICIT IRRIGATION and SALINITY stress, more resistance than Ghods WHEAT, and Roshan WHEAT had a greater productivity.

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APA: Copy

ZAMANI, G.R., KASHKULI, H.A., SHAHIDI, A., & GHORAYSHI, S.G.R.. (2007). EFFECTS OF SALINITY AND IRRIGATION REGIMES ON YIELD, YIELD COMPONENTS AND SEED PROTEIN IN TWO WHEAT CULTIVARS. AGRICULTURAL RESEARCH, 7(2), 55-66. SID. https://sid.ir/paper/84697/en

Vancouver: Copy

ZAMANI G.R., KASHKULI H.A., SHAHIDI A., GHORAYSHI S.G.R.. EFFECTS OF SALINITY AND IRRIGATION REGIMES ON YIELD, YIELD COMPONENTS AND SEED PROTEIN IN TWO WHEAT CULTIVARS. AGRICULTURAL RESEARCH[Internet]. 2007;7(2):55-66. Available from: https://sid.ir/paper/84697/en

IEEE: Copy

G.R. ZAMANI, H.A. KASHKULI, A. SHAHIDI, and S.G.R. GHORAYSHI, “EFFECTS OF SALINITY AND IRRIGATION REGIMES ON YIELD, YIELD COMPONENTS AND SEED PROTEIN IN TWO WHEAT CULTIVARS,” AGRICULTURAL RESEARCH, vol. 7, no. 2, pp. 55–66, 2007, [Online]. Available: https://sid.ir/paper/84697/en

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