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Balaji, K.
- Induced Viable Mutants in Vigna mungo (L.) Hepper
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Authors
Affiliations
1 Centre for Plant Molecular Biology, Tamil Nadu Agricultural University, Coimbatore, (T.N.), IN
2 Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Centre for Plant Molecular Biology, Tamil Nadu Agricultural University, Coimbatore, (T.N.), IN
2 Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
Asian Journal of Bio Science, Vol 3, No 1 (2008), Pagination: 15-19Abstract
Mutations were induced in blackgram (Vigna mungo (L.) Hepper) varieties namely ADT 3, ADT 5 and APK 1. Different types of macro mutants and micro mutants were screened in M2 generation. The frequency and the spectrum of the viable mutants were estimated in M2 generation both in M1 plant basis and M2 seedling basis. The highest frequency of viable mutants was recorded in ADT 3. Mutation spectrum was much wider at 60kR and it was narrow at 50kR. The variety ADT 5 had recorded wider spectrum at 60 kR and APK 1 showed higher spectrum at 50kR.Keywords
Blackgram ADT3, ADT5, APK1.- Studies on the Seasonal Incidence of Coconut Eriophyid Mite Aceria guerreronis Keifer (Acari:Eriophyidae)
Abstract Views :193 |
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Authors
Affiliations
1 Dept. of Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Dept. of Entomology, Centre for Plant Molecular Biology & Biotechnology, T.N.A.U., Coimbatore (T.N.), IN
1 Dept. of Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Dept. of Entomology, Centre for Plant Molecular Biology & Biotechnology, T.N.A.U., Coimbatore (T.N.), IN
Source
Asian Journal of Bio Science, Vol 2, No 2 (2007), Pagination: 88-91Abstract
The seasonal incidence of coconut eriophyid mite, A. guerreronis was studied during November 2000 to December 2001 in coconut plantations at Kadavasal, Chidambaram, Tamil Nadu. The incidence of mite was found throughout the year. But the peak incidence was observed during dry climate April, May and June and started declining during wet climate July. The correlation between temperature, rainfall and mite population revealed that the population density was positively correlated with temperature and negatively correlated with rainfall. The prediction model has been developed for the given set of parameters.Keywords
Eriophyid Mite, Seasonal Incidence, Prediction Model.- Mutagenic Effectiveness and Efficiency of Gamma Rays in Blackgram (Vigna mungo L.) Hepper) in M2 Generation
Abstract Views :192 |
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Authors
Affiliations
1 Dept. of Entomology, Centre for Plant Molecular Biology & Biotechnology, T.N.A.U., Coimbatore (T.N.), IN
2 Dept. of Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Dept. of Entomology, Centre for Plant Molecular Biology & Biotechnology, T.N.A.U., Coimbatore (T.N.), IN
2 Dept. of Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
Asian Journal of Bio Science, Vol 2, No 2 (2007), Pagination: 110-112Abstract
The mutagenic effectiveness and efficiency of gamma rays viz., 40, 50, 60, 70 and 80 kR in three varieties of urd bean cultivars namely ADT 3, ADT 5 and APK 1 were studied. The effectiveness of gamma ray shows a consistent relationship of lower doses of gamma ray was found more effective in M1 plant and M2 seedling basis. The high effectiveness was recorded in ADT 5 at 40 kR followed by 50 kR in ADT 3 and APK 1 at 50 kR on M1 plant basis. In M2 seedling basis the high effectiveness was recorded in ADT 3 at 50 kR followed by ADT 5 at 40 kR and APK 1 at 60 kR. The mutagenic efficiency directly proportional with the increase in the dose among all the varieties studied.Keywords
Gamma Ray, ADT 3, ADT 5, APK 1, Effectiveness, Efficiency, Blackgram.- Inflorescence and Nut Characters of Dwarf Cultivars in Coconut (Cocos nucifera Linn.)
Abstract Views :156 |
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Authors
Affiliations
1 Central Plant Molecular Biology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Agricultral Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Central Plant Molecular Biology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Agricultral Entomology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN