Refine your search
Collections
Co-Authors
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Suresh, K
- Variability and Frequency Distribution Studies in F2 Population of Two Crosses of Rice (Oryza sativa L.)
Abstract Views :730 |
PDF Views:2
Authors
Affiliations
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.k.v.k., Bengaluru, Karnataka, IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.k.v.k., Bengaluru, Karnataka, IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN
Source
Asian Journal of Bio Science, Vol 8, No 2 (2013), Pagination: 153-159Abstract
An investigation was carried out at ZARS, VC Farm, Mandya during 2011-2012 to study the frequency distribution and variability produced in two F2 populations of rice viz.,'IR 64 BPHR-1' and 'Jaya BPHR-1' for grain yield and its seven component characters. The F2 populations of both the crosses showed high PCV and GCV values coupled with high heritability and high genetic advance as per cent of mean for total tillers per plant, productive tillers per plant, grains per panicle and grain yield per plant. Skewness and kurtosis indicated dominance based complementary gene interaction involving large number of genes having decreasing effect in the inheritance of total tillers per plant, days to panicle emergence, productive tillers per plant, grains per panicle and grain yield in both the crosses and for 1000-grain weight in 'Jaya BPHR-1'. However, duplicate interaction was noticed for panicle length in both the crosses; while, 1000-grain weight showed complete ambi-directional epistasis in the cross 'IR 64 BPHR-1'.Contrary to this, plant height exhibited dominance based complete interaction for few segregating genes with majority of them having decreasing effect.Keywords
Frequency Distribution, Gene Interaction, F2 Population, Pcv, GcvReferences
- Agarwal, K.B. (2003). Variability studies in segregating populations of rice. Ann. Agric. Res. New series, 24: 707-709.
- Burton, G.W. and Devane, E.H. (1953). Estimating heritability in tall fescue (Festuca aurundinacea) from replicated clonal material. Agron. J., 45: 478-481.
- Chauhan, J.S. and Chauhan, V.S. (1994). Genetic analysis of grain dimensions and weight and their association with grain yield in rainfed rice (Oryza sativa). Indian J. Agric. Sci., 64: 613-618.
- Chauhan, J.S., Lopez, F.S.S. and Vergara, B.S. (1990). Heritability and genetic advance in early segregating populations of rice. Oryza, 27: 15-20.
- Johnson, H.W., Robinson, H.F. and Comstock, R.E. (1955). Estimates of genetic and environmental variability in soybean. Agron. J., 47: 314-318.
- Kannan Babu, J.R. and Soundrapandian, G. (1993). Genetic variability and association studies in F3 generation of rice.Madras Agric. J., 80: 711-712.
- Kumar, Sanjeev Singh, H.B. and Sharma, J.K. (2005). Genetic variability for morpho-physiological and some quality traits in rice (Oryza sativa L.). Himachal J. Agric. Res., 31: 163-165.
- Mohanthy, H.K. and Singh, S.C. (1969). Biometrical studies in rice with special reference to nitrogen response. Oryza, 6: 23-25.
- Nandeshwar, B.C., Pal, S., Senapati, B.K. and De, D.K. (2010). Genetic variability and character association among biometrical traits in F2 generation of some rice crosses. Electronic J. Pl. Breed., 1: 758-763.
- Nayak, A.R. (2008). Genetic variability and correlation study in segregating generation of two crosses in scented rice. Agric. Sci. Digest, 28: 280-282.
- Paramasivan, K.S. (1986). Study of genotypic, phenotypic variability in hybrids of dwarf and tall indica rice.Madras Agric. J., 73: 527-529.
- Raju, Ch. S., Rao, M.V.B. and Sudarshanam (2004). Genetic analysis and character association in F2 generation of rice. Madras Agric. J., 91: 66-69.
- Singh, Surendra and Chaudhary, B.S. (1996). Variability, heritability and genetic advance in cultivars of rice (Oryza sativa L.). Crop Res., 12: 165-167.
- Snedecor, G.W. and Cochran, W.G. (1974). Statistical Methods. 6th ed., Oxford and IBH Pub. Co., NEW DELHI (INDIA).
- Suresh, A.V. and Reddy, C.D.R. (2002). Studies on genetic variability parameters in a set of parental lines and their F2 population in Rice. The Andhra Agric.J., 49: 307-312.
- Biointensive Management of Tea Mosquito Bug Helopeltis Spp. In Moringa
Abstract Views :117 |
PDF Views:72
Authors
K Suresh
1
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104 Tamil Nadu, IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104 Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 2 (2022), Pagination: 399-401Abstract
Field experiments were conducted during 2018-19 and 2019-20 in moringa gardens at Usilampatti Block, Madurai District, Tamil Nadu with seven biopesticides viz., neem oil 3%, NSKE 5%, azadirachtin/ neemazal 3,000 ppm, pungam oil 3%, fish oil rosin soap 25 g/ l, Beauveria bassiana 108 CFU/ ml and Lecanicillium lecanii 106 CFU/ ml to evaluate their efficacy against tea mosquito bug Helopeltis spp. Among these, B. bassiana 108 CFU/ ml was found to be the most effective.Keywords
Tea mosquito bug, moringa, neem oil, NSKE, neemazal, pungam oil, fish oil rosin soap, Beauveria bassiana, Lecanicillium lecanii, efficacy, yield.References
- Ghatak S S, Reza M D W, Poi S C. 2008. Bio-efficacy of some biopesticides and modern synthetic pesticides against tea mosquito bug, Helopeltis theivora Waterhouse (Hemiptera: Miridae). Research on Crops 9: 165-171.
- Hazarika L K, Budhinda M B, Hazarika N. 2009. Insect pests of tea and their management. Annual Review of Entomology 54: 267-284.
- Kotikal Y K, Math M. 2016. Insect and non-insect pests associated with drumstick, Moringa oleifera (Lamk.). Entomology, Ornithology and Herpetology: Current Research 5 (2): 180.
- Manimaran V, Suganthy M, Balasubramanian A, Pretheep Kumar P. 2019. Management of tea mosquito bug, Helopeltis antonii Signoret infesting Ailanthus excelsa Roxb. Journal of Entomology and Zoology Studies 7(3): 620-623.
- Patil G R, Naik K. 2004. Evaluation of mycopathogens against Helopeltis antonii. Karnataka Journal of Agricultural Sciences 17: 337-338.