Variability and Phenotypic Stability of Soybean
(Glycine max L.) Varieties under Different Plant Densities and Locations
Khaled Kh. A. Aljibouri*(1) Khaled M. D. Al-Zubaidy(2) and Aryan R. Kareem(1)
(1). Faculty of Agriculture, Hawija University, Kirkuk, Iraq.
(2). Faculty of Agriculture and Forestry, University of Mosul, Iraq.
(*Corresponding author: Dr. Khaled Kh. A. Aljibouri. E-Mail: agrihawija@gmail.com).
Received: 01/05/2020 Accepted: 03/06/2020
Abstract
The study was carried out with the aim of testing the environmental genetic interaction for seed yield and its components and oil and protein percent’s traits, estimating the broad sense heritability and stability parameters of three soybean varieties Lee74, Taqa and Aeman, which were cultivated in twelve environments resulting from the combinations of six plant densities (285714, 200000, 153846, 142875, 100000 and 76923 plants per hectare), and two locations (Bany Manqan and Kani Panaka), which belonging to Sulaymaniyah Governorate, using a randomized completely block design with three replications. Combining analysis of variance showed significant mean square of varieties for DFF, PH, HFN, NPP, SPY, 100 SW traits, locations for DFF, PH, HFN, and 100 SW traits and plant densities for PH, HFN, 100 SW, and Protein%. The interaction of varieties x environments (locations and plant densities) was highly significant for NVB, NPP, NSP, SPY and 100 SW traits. The broad sense heritability was high for DFF and PH traits (98.02 and 81.19%) respectively, moderate for HFN and 100 SW traits (26.28 and 26.91%) respectively and low for the other traits. Stability parameters results showed high stability in different environments for variety Lee74 in DFE, HFN and NSP traits, Taqa variety considered stable in PH and HFN traits, and Aeman variety for were stable in PH, SPY and Oil% traits, and the same varieties showed response to good environments only for certain traits, whereas, there was a response to inappropriate environments as shown by the two varieties Taqa in DFE and NSP and Aeman in DFE and NPP.
Key words: G X E interaction, Soybean, Stability, Plant density, Location effect.
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How to cite this article – APA Style
Aljibouri, K. K. A., Al-Zubaidy, K. M. D., & Kareem, A. R. (2020). Variability and phenotypic stability of soybean (Glycine max L.) varieties under different plant densities and locations. Research Journal of Science. 1(2), 10-21.