GENETIC STUDIES IN F2 POPULATION OF RICE (Oryza sativa L.)CROSSES

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dc.contributor.advisorPrakash, Surya
dc.contributor.authorPERWEEN, SHAHINA
dc.date.accessioned2022-04-28T07:47:50Z
dc.date.available2022-04-28T07:47:50Z
dc.date.issued2021
dc.descriptionGENETIC STUDIES IN F2 POPULATION OF RICE (Oryza sativa L.)CROSSESen_US
dc.description.abstractThe present investigation in rice (Oryza sativa L.) was undertaken during kharif 2018, at rice research field, Birsa Agricultural University, Kanke, Ranchi, Jharkhand, to study the genetic variability, frequency distribution and correlation analysis for seventeen different characters in F2 population of respective cross combination namely Dhanrashi x Wita-12, Dhanrashi x Shyamala and Sahbhagidhan x Birsamati in rice. The population size was however varied in different cross. The mean and variance of seventeen quantitative characters in F2 population of each crosses indicated a wide range of variability for the characters panicles per plant, grains per plant, spikelets per plant, grains per panicle whereas low variability for 100 grain weight, grain breadth and panicle length. Genotypic coefficient of variation and phenotypic coefficient of variation values were relatively higher for traits like panicles per plant, grain yield per plant, total grains per plant, spikelets per plant and unfilled grains per plant and low to moderate for days to flowering, plant height, primary branches per panicle, panicle length, grain length and grain breadth,100 grain weight in each crosses. In present study the nature of distribution was found platykurtic and positively skewed for traits plant height,total yield per plant, unfilled grains per plant, grain length and L/B ratio in Dhanrashi x Wita- 12 whereas it was observed for the traits days to flowering, primary branches per panicle and secondary branches per panicle in Dhanrashi x Shyamala but in Sahbhagidhan x Birsamati, the traits spikelets per panicle, 100 grain weight, total yield per plant, grain yield per plant, grains per plant, spikelets per plant and L/B ratio was platykurtic and positively skewed. Almost all the characters other than days to flowering were positively and significantly correlated with grain yield per plant and grains per panicle in all three crosses. In the present investigation superior promising individual plants were selected in F2 segregating generation for crop improvement programme.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810183909
dc.keywordsGENETIC STUDIES IN F2 POPULATION OF RICE (Oryza sativa L.)CROSSESen_US
dc.language.isoEnglishen_US
dc.publisherBirsa Agricultural University, Ranchien_US
dc.subAgricultural Biotechnologyen_US
dc.themeGENETIC STUDIES IN F2 POPULATION OF RICE (Oryza sativa L.)CROSSESen_US
dc.these.typeM.B.A.en_US
dc.titleGENETIC STUDIES IN F2 POPULATION OF RICE (Oryza sativa L.)CROSSESen_US
dc.typeThesisen_US
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