Genetic variability and inter-relationships between growth traits and seed yield of pongamia pinnaa (L.) Pierre
| dc.contributor.advisor | Pathak, N.N. | |
| dc.contributor.author | Thakur, Preeti Singh | |
| dc.date.accessioned | 2016-07-23T15:46:01Z | |
| dc.date.available | 2016-07-23T15:46:01Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | ABSTRACT Self-reliance in energy is vital for overall economic development of India and other developing countries. The need to search for alternative source of energy which is renewable, safe and nonpolluting assumes top priority in view of the uncertain supplies & frequent price hike of fossil fuels in the international market. The recent huge demand for oil and depleting fossil fuel reserves have rekindled interest in promotion of tree-borne oil seed species as an alternate source of energy. Pongamia pinnata (L.) Pierre (Karanj) is one of the fast growing leguminous trees that has a high potential for oil seed production, with the ability to grow on marginal lands which supports its cultivation as a potential biofuel crop for biodiesel industry. The effectiveness of tree improvement programme depends upon the nature and magnitude of existing genetic variability in the crop and also on the degree of transmission of traits or heritability as because the knowledge on genetic variation and heritability of different traits is the basic requirement for long-term stability in terms of biodiesel production. The present investigation entitled, “Genetic Variability and Inter-relationship between Growth traits and Seed yield of karanj [Pongamia pinnata (L.) Pierre]” was conducted at Forestry Research Farm, Dusty Acre, Department of Forestry, JNKVV, Jabalpur (M.P.), during 2013-14. The plantation was done in 2005. The present study was done at the age of eight years. A set of twenty-two treatments (viz., T1- Bandole-1 Seoni, T2 - Kosamghat, T3 - Bahoripar, Bargi, T4 - Kailwas, Barha, T5 - TFRI, Gour river, T6 - Kalpi Depot , T7 - Cantt Area, T8 - Bandole – 2, T9 - Maihar – I, T10 - Bargi (JN-4), T11 - Maihar – II, T12 - Lalpur Nagod Road, T13 - Nagod Road, T14 - 4th mile Mandla, T15 - Kushmeli Road Amarwada, T16 - TFRI, Garden, T17 - Lalpur- II Nagod Road, T18 - Circular Road, T19 - Jhighri, T20 - Khajurahoo Road, T21 - KVK, Seoni,T22 - Nagod was laid out in Randomized Block Design and replicated thrice. The observations on growth and seed yield traits (tree height, dbh, basal diameter, basal area, seed length, seed width, seed thickness, seed volume, 100 pods weight, 100 seed weight, pod weight per tree, pod yield, seed weight per tree, seed yield, kernel oil content) were recorded. The present investigation attempts may be made to achieve the following objectives: • To estimate the extent and magnitude of genetic variation for growth and oil seed yield traits of Pongamia pinnata. • To estimate the extent and magnitude of inter-relationships between growth and oil seed yield traits of Pongamia pinnata. • Identification of specific growth and oil seed yield traits for genetic improvement of Pongamia pinnata. The genetic parameter (viz., genotypic variance, phenotypic variance, genotypic coefficient of variation, phenotypic coefficient of variation, heritability and genetic advance) and statistical analysis (viz., correlation and regression) were calculated to find out the suitable growth and yield character required for tree improvement of karanj. From the above results it may be concluded that the analysis of variance revealed that sufficient variability was present in the experimental material. The mean kernel oil content was found highest in progenies Maihar –I, (T9) followed by Bandole-2, Seoni, (T8). The mean value of kernel oil content and its various component characters studied in the present investigation revealed that progenies under study had variation for all the characters. However, superior progenies had high mean value for kernel oil content. Finding of the result revealed that the phenotypic coefficient of variation was higher than the corresponding genotypic coefficient of variation for all the traits which might be due to the interaction of genotypes with environment. High phenotypic and genotypic coefficient of variation was observed for seed yield, pod yield, and volume of seed suggested greater phenotypic and genotypic variability among the accessions and responsiveness of the attributes for making further improvement by selection. High heritability with high genetic advance as per cent of mean was observed for seed weight per tree, seed yield, pod weight per tree and pod yield this manifested revealed predominance of additive gene action. High heritability with moderate genetic advance was observed for 100 pod weight, 100 seed weight and basal area. These characters offered limited scope of selection due to non additive pattern of inheritance and selection pressure may be applied to successive generation. High heritability and low genetic advance was observed for seed length and seed width. This indicated that non additive gene effect. Kernel oil content and seed weight per tree exhibited low heritability with low genetic advance as percent of mean indicating low scope for the improvement of this trait through selection. The correlation studies concluded that the positive association of kernel oil content was observed with volume of seed followed by seed length, seed width, seed thickness, , seed yield, pod yield and seed-pod ratio. The regression coefficient analysis carried out to know the contribution characters on dependent variable kernel oil content. It had found that the dependent character for kernel oil content was volume of seed, seed thickness, seed length, seed width, seed yield and pod yield and showed significant result. ABSTRACT Self-reliance in energy is vital for overall economic development of India and other developing countries. The need to search for alternative source of energy which is renewable, safe and nonpolluting assumes top priority in view of the uncertain supplies & frequent price hike of fossil fuels in the international market. The recent huge demand for oil and depleting fossil fuel reserves have rekindled interest in promotion of tree-borne oil seed species as an alternate source of energy. Pongamia pinnata (L.) Pierre (Karanj) is one of the fast growing leguminous trees that has a high potential for oil seed production, with the ability to grow on marginal lands which supports its cultivation as a potential biofuel crop for biodiesel industry. The effectiveness of tree improvement programme depends upon the nature and magnitude of existing genetic variability in the crop and also on the degree of transmission of traits or heritability as because the knowledge on genetic variation and heritability of different traits is the basic requirement for long-term stability in terms of biodiesel production. The present investigation entitled, “Genetic Variability and Inter-relationship between Growth traits and Seed yield of karanj [Pongamia pinnata (L.) Pierre]” was conducted at Forestry Research Farm, Dusty Acre, Department of Forestry, JNKVV, Jabalpur (M.P.), during 2013-14. The plantation was done in 2005. The present study was done at the age of eight years. A set of twenty-two treatments (viz., T1- Bandole-1 Seoni, T2 - Kosamghat, T3 - Bahoripar, Bargi, T4 - Kailwas, Barha, T5 - TFRI, Gour river, T6 - Kalpi Depot , T7 - Cantt Area, T8 - Bandole – 2, T9 - Maihar – I, T10 - Bargi (JN-4), T11 - Maihar – II, T12 - Lalpur Nagod Road, T13 - Nagod Road, T14 - 4th mile Mandla, T15 - Kushmeli Road Amarwada, T16 - TFRI, Garden, T17 - Lalpur- II Nagod Road, T18 - Circular Road, T19 - Jhighri, T20 - Khajurahoo Road, T21 - KVK, Seoni,T22 - Nagod was laid out in Randomized Block Design and replicated thrice. The observations on growth and seed yield traits (tree height, dbh, basal diameter, basal area, seed length, seed width, seed thickness, seed volume, 100 pods weight, 100 seed weight, pod weight per tree, pod yield, seed weight per tree, seed yield, kernel oil content) were recorded. The present investigation attempts may be made to achieve the following objectives: • To estimate the extent and magnitude of genetic variation for growth and oil seed yield traits of Pongamia pinnata. • To estimate the extent and magnitude of inter-relationships between growth and oil seed yield traits of Pongamia pinnata. • Identification of specific growth and oil seed yield traits for genetic improvement of Pongamia pinnata. The genetic parameter (viz., genotypic variance, phenotypic variance, genotypic coefficient of variation, phenotypic coefficient of variation, heritability and genetic advance) and statistical analysis (viz., correlation and regression) were calculated to find out the suitable growth and yield character required for tree improvement of karanj. From the above results it may be concluded that the analysis of variance revealed that sufficient variability was present in the experimental material. The mean kernel oil content was found highest in progenies Maihar –I, (T9) followed by Bandole-2, Seoni, (T8). The mean value of kernel oil content and its various component characters studied in the present investigation revealed that progenies under study had variation for all the characters. However, superior progenies had high mean value for kernel oil content. Finding of the result revealed that the phenotypic coefficient of variation was higher than the corresponding genotypic coefficient of variation for all the traits which might be due to the interaction of genotypes with environment. High phenotypic and genotypic coefficient of variation was observed for seed yield, pod yield, and volume of seed suggested greater phenotypic and genotypic variability among the accessions and responsiveness of the attributes for making further improvement by selection. High heritability with high genetic advance as per cent of mean was observed for seed weight per tree, seed yield, pod weight per tree and pod yield this manifested revealed predominance of additive gene action. High heritability with moderate genetic advance was observed for 100 pod weight, 100 seed weight and basal area. These characters offered limited scope of selection due to non additive pattern of inheritance and selection pressure may be applied to successive generation. High heritability and low genetic advance was observed for seed length and seed width. This indicated that non additive gene effect. Kernel oil content and seed weight per tree exhibited low heritability with low genetic advance as percent of mean indicating low scope for the improvement of this trait through selection. The correlation studies concluded that the positive association of kernel oil content was observed with volume of seed followed by seed length, seed width, seed thickness, , seed yield, pod yield and seed-pod ratio. The regression coefficient analysis carried out to know the contribution characters on dependent variable kernel oil content. It had found that the dependent character for kernel oil content was volume of seed, seed thickness, seed length, seed width, seed yield and pod yield and showed significant result. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/69631 | |
| dc.language.iso | en | en_US |
| dc.publisher | JNKVV | en_US |
| dc.sub | Forestry | |
| dc.these.type | M.Sc | |
| dc.title | Genetic variability and inter-relationships between growth traits and seed yield of pongamia pinnaa (L.) Pierre | en_US |
| dc.type | Thesis | en_US |
Files
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 2.28 KB
- Format:
- Item-specific license agreed upon to submission
- Description: