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Dr. Y. S. Parmar University of Horticulture & Forestry, Solan

Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan, was established on 1st December, 1985 with the objective to promote education, research and extension education in the fields of Horticulture, Forestry and allied disciplines. Late Dr. Yashwant Singh Parmar, the first Chief Minister and the architect of Himachal Pradesh perceived the importance of Horticulture and Forestry to develop and improve the State economy which led to the establishment of this University. Its history lies in erstwhile Himachal Agricultural College, Solan, established in 1962 and affiliated to the Panjab University. It became one of the campuses of Agriculture Complex of Himachal Pradesh University on its formation in 1970. Consequent upon the establishment of Himachal Pradesh Krishi Vishvavidyalaya in 1978, this campus became its Horticulture Complex and finally in 1985, assumed the status of a State University, being the only University in the country engaged exclusively in teaching, research and extension in Horticulture and Forestry. The University is located at Nauni in Solan District of Himachal Pradesh, 13 km from Solan on Solan-Rajgarh Road, at an elevation of 1300 metres above mean sea level. Solan town is situated on national highway (NH-22) and is well connected by train and bus services. The University has four constituent colleges, out of which, two are located at the main campus Nauni, one for horticulture and the other for forestry, having 9 and 7 departments, respectively. The third College i.e., College of Horticulture & Forestry is located at Neri in Hamirpur District on Nadaun-Hamirpur state highway, about 6 Km from Hamirpur town and is well connected with bus service. The college offers three Undergraduate Degree Programmes i.e. BSc (Hons.) Horticulture, BSc (Hons.) Forestry and B. Tech. Biotechnology and MSc degree programme in a few subjects. The fourth college i.e. College of Horticulture and Forestry, Thunag (Mandi) is located at Thunag District Mandi. This college offer BSc (Hons.) Horticulture and BSc (Hons.) Forestry degree programme. In addition, there are five Regional Research Stations, 12 Satellite Stations and five Krishi Vigyan Kendras (KVKs) situated in different zones of the State.

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20241
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Subject: Vegetable Science × Author: AJAY SINGH × Start date: 2000 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    GENETIC ANALYSIS OF CYTOPLASMIC MALE STERILITY BASED HYBRIDS IN CAULIFLOWER
    (UHF Nauni, 2024-02-24) AJAY SINGH; Devinder Kumar Mehta
    The present investigation entitled “Genetic Analysis of Cytoplasmic Male Sterility Based Hybrids in Cauliflower” was conducted during the years 2020-2022 at research farm of Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) to assess the information on combining ability, gene action analysis and magnitude of heterosis for different yield related traits. Fifty-five cross combinations generated from crossing of eleven CMS lines (CAU-CMS-4, CAU-CMS-5, CAU-CMS-6, CAU-CMS-7, CAU-CMS-8, CAU-CMS-9, CAU-CMS-10, CAU-CMS-11, CAU-CMS-12, CAU-CMS-13 and CAU-CMS-14) with 5 testers (Early Snowball, Early London, Champion, Pusa Himjyoti and PSBK-1) in Line × Tester mating design were evaluated along with parents and a standard check (Pusa Snowball Hybrid-1) in randomized complete block design (RCBD) with three replication for sixteen quantitative traits and nine quality traits. Analysis of variance for the data revealed significant differences among the genotypes for most of the traits investigated. The combining ability analysis revealed significant differences due to lines, testers and line x tester interactions for most of the traits when tested against error indicating appreciable diversity in the experimental material. The experimental results suggested CAU-CMS-4 as the best general combiner for various traits such as number of leaves per plant, leaf length, leaf width, curd polar length, curd size index, curd solidity, gross plant weight, marketable curd weight and net curd weight, whereas; CAU-CMS-5 excelled with desirable GCA effects for traits viz., plant height, days to 50 per cent curd harvesting and stalk length. The experimental results inferred that on the basis of GCA analysis and mean performances, the parents, CAU-CMS-12, CAU-CMS-13, CAU-CMS- 14, PSBK-1, Early London and Champion were found superior for majority of yield contributing traits. The hybrids CAU-CMS-4 × Early London, CAU-CMS-5 × PSBK-1 and CAU-CMS-7 × Early Snowball were the three best performing hybrids on the basis of their per se mean performance, SCA analysis and heterotic effects for majority of yield traits such as curd size index, marketable curd weight/curd yield, net curd weight and its contributing traits. These crosses also exhibited less black rot severity and had desirable curd traits such as snow-white curds, curd covering by inner leaves, compact curds and were free from curd riceyness. The estimates of variance ratio (σ 2A/ σ 2D) were less than unity for most of the traits substantiating the role of non-additive gene action for the traits suggesting the exploitation of heterosis breeding for further improvement in the mid-late and late maturity groups of cauliflower. Hence, these three cross combinations should be further evaluated at multi-locations before releasing as a substitute of already existing hybrids of cauliflower.