Correlation and regression between traits and grain yield in maize hybrids under normal and stress conditions

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Farajzadeh Meemari Tabrizi n.; AHARIZAD S.; RASHIDI V.; Darvish Kojoei f.; KHAVARI KHORASANI S.

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Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2017 | Volume:9 | Issue:28 Page(s): 21-30

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Title

Correlation and regression between traits and grain yield in maize hybrids under normal and stress conditions

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Keywords

Combined analysisQ2

dependent variableQ2

droughtQ1

hybridQ2

path analysisQ2

Abstract

To investigate yield and yield components in 22 corn hybrids, a split plot experiment based on randomized complete block design with three replicates was conducted under water stress and non-water stress during 2013 and 2014 at the Research Station Agriculture, Islamic Azad University of Tabriz, Iran. Treatments were two irrigation levels (Irrigationafter70mmevaporation from class A evaporation pan and irrigation after 140mm evaporation from class A evaporation pan at the beginning of the Tasseling) as main plots and 18maize hybrids and 4 maize varieties as sub– plots. Combined analysis in two years showed that genotype × water stress interaction had significant effect on the most of measured traits. GenotypeL2 × K1263/1andL3 × A679 showed the highest yield by 6/38 and 3/82kg ha-1 under normal conditions and stress conditions, respectively kg. Correlation analysis showed that number of kernels per row and numbers of grains per ear have a maximum positive significant correlation under stress and non-stress conditions. Based on the results of step wise regression in non-stress conditions, 100 seed weight, number of kernel per ear, number of leaves and plant height and under stress conditions100grainweight, number of kernels per ear and plant height were remained. path analysis showed that non-stress conditions and stress conditions number of number of grains per ear had a direct effect on grain yield. Results showed that in the both condition (stress-non stress), selection for increased yield could be performed by selecting genotypes with number of grains per ear.

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APA: Copy

Farajzadeh Meemari Tabrizi, n., AHARIZAD, S., RASHIDI, V., Darvish Kojoei, f., & KHAVARI KHORASANI, S.. (2017). Correlation and regression between traits and grain yield in maize hybrids under normal and stress conditions. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 9(28 ), 21-30. SID. https://sid.ir/paper/188345/en

Vancouver: Copy

Farajzadeh Meemari Tabrizi n., AHARIZAD S., RASHIDI V., Darvish Kojoei f., KHAVARI KHORASANI S.. Correlation and regression between traits and grain yield in maize hybrids under normal and stress conditions. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2017;9(28 ):21-30. Available from: https://sid.ir/paper/188345/en

IEEE: Copy

n. Farajzadeh Meemari Tabrizi, S. AHARIZAD, V. RASHIDI, f. Darvish Kojoei, and S. KHAVARI KHORASANI, “Correlation and regression between traits and grain yield in maize hybrids under normal and stress conditions,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 9, no. 28 , pp. 21–30, 2017, [Online]. Available: https://sid.ir/paper/188345/en

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