16. Assessing genetic divergence among rice germplasm based on qualitative traits

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Abdul Qayyum Sohail Ahmad Jan, Azhar Hussain Shah Muniba Fida Abbasi, Ishtiaq Hassan, Muhammad Ishaq Ibrahim Mohammad Ilyas Malik Ashiq Rabbani

Abstract

Rice is cultivated worldwide under wide range of ecological conditions and is a daily staple food crop for more than half of world’s population. The morphological characterization is usually performed to select better genotypes. This type of characterization identifies elite genotypes based on qualitative as well as quantitative traits. In present study 45 diverse rice germplasm were screened for important qualitative traits. The experiment was designed as augmented and important qualitative traits including leaf related traits, lodging, panicle shape, seed coat color and awn related traits were studied. Significant variations were observed for all the examined traits. Majority of genotypes showed resistance to lodging, and only few showed slight lodging. The brown seed coat color was found dominant among genotypes. All the studied traits included in the study were found useful for the identification of improved genotypes and these traits have direct relation with yield or yield related traits. However, to elucidate the particular responsible genes for these traits, further molecular based studies are recommended.


Keywords: Genetic variability; Lodging; Morphological traits; Rice; Qualitative traits


http://dx.doi.org/10.19045/bspab.2019.80056

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