Evaluation and characterization in marigold

dc.contributor.advisorBeniwal, B.S.
dc.contributor.authorChoudhary, Mahesh
dc.date.accessioned2017-06-03T04:34:17Z
dc.date.available2017-06-03T04:34:17Z
dc.date.issued2013
dc.description.abstractThe present experiment was conducted at Experimental Orchard of the Department of Horticulture, CCS Haryana Agricultural University, Hisar during winter seasons of 2011-12 and 2012- 13 on thirty genotypes of both African and French marigold to estimate the genetic variability, heritability, genetic advance and varietal characterization. The observations were recorded on growth, flowering and yield parameters. The analysis of variance revealed that the mean sum of squares due to genotypes were highly significant for all the characters studied, indicating a wide range of variability in the material investigated. The highest flower yield was observed in genotype Hisar Jaffri-2 followed by MGH-09-271 and MGH-09-276, while it was lowest in Hisar Beauty. The high GCV and PCV values were observed for fresh and dry weight of plant, number of secondary branches per plant, number of buds per plant and number of flowers per plant. Heritability in broad sense and genetic advance as per cent mean were higher for fresh weight of plant, dry weight of plant, number of flowers per plant, number of buds per plant and number of secondary branches per plant. Association analysis revealed high significant positive correlation of flower yield per plant with number of secondary branches per plant, number of buds per plant, number of flowers per plant, dry weight of plant, fresh weight of plant, fresh weight of flower, dry weight of flower, plant spread, flower diameter, stem diameter, duration of flowering and days taken to first flower opening, indicating selection of these characters for crop improvement and breeding strategies. Path analysis depicted that number of flowers per plant had the highest direct and positive effect on flower yield per plant, closely followed by fresh weight of flower, flower diameter, dry weight of flower and dry weight of plant. Based on D2 values, all the thirty genotypes were grouped into six clusters in both the years, i.e., 2011-12 and 2012-13, indicating the presence of considerable amount of genetic diversity among the genotypes under study. On the basis of morphological characters, the marigold genotypes were characterized and categorized effectively. The plant growth habit, branching habit, leaflet shape, leaf colour, stalk shape, disc floret, floret colour, etc., were the key characters, therefore, can be used as morphological descriptors for the varietal identification in marigold.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810014925
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subHorticulture
dc.subjectCrossing over, Planting, Fruits, Yields, Additives, Developmental stages, Heterosis, Vegetables, Biological phenomena, Geneticsen_US
dc.these.typePh.D
dc.titleEvaluation and characterization in marigolden_US
dc.typeThesisen_US
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