INVESTIGATION OF TRAITS CORRELATIONS, REGRESSION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS OF SC704 CORN HYBRID UNDER DIFFERENT IRRIGATION REGIMES AND METHODS

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PAKNEJAD F.; VAZAN S.; GOLZARDI F.; HABIBI D.

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Journal: IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING Year:2009 | Volume:5 | Issue:2 Page(s): 97-115

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Title

INVESTIGATION OF TRAITS CORRELATIONS, REGRESSION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS OF SC704 CORN HYBRID UNDER DIFFERENT IRRIGATION REGIMES AND METHODS

Author(s)

PAKNEJAD F. | VAZAN S. | GOLZARDI F. | HABIBI D. | Issue Writer Certificate

Keywords

SC704 CORN HYBRIDQ3

IRRIGATION REGIMEQ2

IRRIGATION METHODQ2

STEPWISE REGRESSIONQ2

PATH ANALYSISQ2

Abstract

In order to investigate the effects of different IRRIGATION REGIMEs and methods on yield and yield components of SC704 CORN HYBRID, a field experiment was conducted similarly in 2006 and 2007, at agricultural research farm of Karaj Islamic Azad University (35o43’ N latitude, 50o56’ E longitude, 1160 m altitude). The studies were carried out in a factorial experiment based on a randomized complete block design with three replications. The factors were IRRIGATION REGIMEs at three level (plant irrigation after 40%, 60% and 75% available water loss) and IRRIGATION METHODs at two levels (Irrigation of all furrows and irrigation furrows alternately). Results showed that IRRIGATION REGIME had significant effect on biological and grain yield and yield components. Whereas IRRIGATION METHOD had significant effect on biological yield, grain number in cob and cob length. There was significant correlation between grain yield and grain number in cob, row number in cob, cob length, cob yield in m2, grain number in cob row, 1000 grain weight and cob yield and also inoculated part of cob negatively. Whereas there was significant correlation between biological yield and plant height, height of first cob and cob number in m2. Results of STEPWISE REGRESSION revealed that cob length, 1000 grain weight and row number in cob were important components in grain yield. But the most important components in biological yield were plant height. Results of PATH ANALYSIS showed that cob length had the most direct effect (0.761) on grain yield. Other components had the most indirect effects on grain yield by cob length. In general, cob height and 1000 grain weight were the most important components in grain yield and plant height was the most important component in biological yield.

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APA: Copy

PAKNEJAD, F., VAZAN, S., GOLZARDI, F., & HABIBI, D.. (2009). INVESTIGATION OF TRAITS CORRELATIONS, REGRESSION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS OF SC704 CORN HYBRID UNDER DIFFERENT IRRIGATION REGIMES AND METHODS. IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, 5(2), 97-115. SID. https://sid.ir/paper/190378/en

Vancouver: Copy

PAKNEJAD F., VAZAN S., GOLZARDI F., HABIBI D.. INVESTIGATION OF TRAITS CORRELATIONS, REGRESSION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS OF SC704 CORN HYBRID UNDER DIFFERENT IRRIGATION REGIMES AND METHODS. IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING[Internet]. 2009;5(2):97-115. Available from: https://sid.ir/paper/190378/en

IEEE: Copy

F. PAKNEJAD, S. VAZAN, F. GOLZARDI, and D. HABIBI, “INVESTIGATION OF TRAITS CORRELATIONS, REGRESSION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS OF SC704 CORN HYBRID UNDER DIFFERENT IRRIGATION REGIMES AND METHODS,” IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, vol. 5, no. 2, pp. 97–115, 2009, [Online]. Available: https://sid.ir/paper/190378/en

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