Genetic diversity in brinjal
| dc.contributor.advisor | Waskar, D.P. | |
| dc.contributor.author | Gurve, Vaibhao Ramesh | |
| dc.date.accessioned | 2018-06-20T09:12:10Z | |
| dc.date.available | 2018-06-20T09:12:10Z | |
| dc.date.issued | 2018-05-30 | |
| dc.description.abstract | The present investigation was undertaken to estimate the genetic divergence in brinjal and to carry out yield component analysis through correlation and path analysis. Twenty genotypes were sown in a randomized block design with two replications, during kharif 2017-2018 at Horticulture Research Scheme, College of agriculture, VNMKV, Parbhani, Maharashtra. The objective of the experiment was to identify divergent genotypes to use as donor parents in hybridization programmes. The D2 analysis was carried out for twenty fivecharacters which partitioned the twenty genotypes into three clusters. The maximum genetic divergence was observed between clusters II and III. The maximum intra cluster distance was shown by cluster II. The characters viz.,fruit yield per hectare,fruit yield per plot, number of fruit per plant, average fruit weight, fruit length, fruit diameter, number of branches per plant, days to 50% flowering and plant spread (N-S) were contributed greatly towards diversity. The clusters showed high genetic divergence that could be effectively utilized in heterosis breeding programme. If a breeding programme is used at improving nutritional characters, then cluster II showing maximum ascorbic acid that can be utilized in breeding programme. Therefore, a plant breeder may keep in mind the above aspects to obtain superior hybrids and good recombinants. The analysis of variance revealed significant difference for twenty five characters studied suggesting considerable amount of variability exists among the genotypes. Wide range of variability was observed for plant height, plant spread, fruit setting percent, number of fruits per plant, average fruit weight, total phenolic content, fruit yield per plant, fruit yield per plot and fruit yield per hectare indicating the scope for selection of suitable initial breeding material for further improvement. GA as percent of mean, GCV and PCV values are on par with each other for most of the characters that the influence of the environment on the traits. The values observed are not confounding with the environment. It is a true to the reflection of the homeostasis effect or buffer reaction of the gene. Thus, the true reflection of the trait is exhibited. In a true agreement with the GCV and PCV values in the present investigation for the 25 characters was noticed, indicating additive genetic variance governing the high heritability with genetic advance as percent of mean. Thus a breeder can employ a simple selection process which will be a rewarding one to improve the characters viz.,average fruit weight, fruit length, number of fruit per plant, shoot and fruit borer infestation, ascorbic acid content, fruit yield per plant, fruit yield per plot, fruit yield per hectare, fruit diameter, flavonoid content and number of fruit per cluster. From correlation studies it was observed that fruit yield per plant has exhibited highly significant positive association withplant height, number of branches per plant, plant spread, number of fruit per plant, fruit length, fruit diameter, fruit pedicel length, ascorbic acid and fruit yield per hectare. Path analysis revealed that maximum positive direct effect on fruit yield per plant was exhibited by number of branches per plant, plant spread (N-S), days to 50% flowering, number of fruit per plant, fruit pedicel length and ascorbic acid. Therefore, it is emphasized to lay attention on these traits like number of fruits per plant and number of branches per plant in crop improvement programme of brinjal in future. On the basis of the mean performance of the genotypes among traits studied, the following were identified as promising lines for further crop improvement in brinjalviz.,VR-2, Aussay, UtkalJyoti, PBNB-6, BH-2, JKGEH-6012, PBNB-5, PBNB-9, KashiTaru, UtkalKeshari and DMU-1. | en_US |
| dc.identifier.other | 18002 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810054577 | |
| dc.keywords | Genetic, diversity,n brinjal | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 134 | en_US |
| dc.publisher | Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani | en_US |
| dc.sub | Vegetable Science | en_US |
| dc.subject | null | en_US |
| dc.theme | Agriculture | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Genetic diversity in brinjal | en_US |
| dc.type | Thesis | en_US |