Title: The 2nd set of study on adaptation, comparison of yield and some important traits of rice genotypes in Central West Asia
Author: Hossein Rahim souroush
Abstract: The exchange of plant germplasm between different countries enables the evaluation of genotype by environment interaction. In addition, the selected breeding lines with high yield and desirable grain quality would be utilized directly as varieties or as parents in various rice improvement programs. To evaluate the adaptability, grain yield, and some important agronomic traits such as plant height and days to 50% of flowering and grain quality characteristics of rice, this study was carried out with some different genotypes along with a regional (Khazar) and a local check-in Turkey (Edirne), Iraq (Najaf) and Iran (Rasht), in 2017. The experimental design was randomized to a complete block design with three replications. The results of simple and combined analysis of variance showed that the simple effects of genotype and location and the interaction of genotype by location were significant at a 1% level of probability. According to mean comparison of traits, three genotypes in Turkey) 001, 005, 002), one in Iraq (004), and four in Iran (020, 012, 022, 023) were selected as the genotypes with high grain yield, early or intermediate maturity, resistance to lodging, and desirable grain quality characteristics. These genotypes would be utilized in advanced trials of rice breeding programs to release directly as new varieties. Besides, some genotypes with good quantitative and qualitative traits such as high yielding and early maturity were selected as parents in hybridization programs to transfer these desirable traits.
Keywords: Rice, adaptability, quality, yield