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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Forestry × Author: Praveen × End date: 2015 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Reproductive biology of rohida (Tecomella undulata (Sm) seem.)
    (CCSHAU, 2014) Praveen; Bangarwa, K.S.
    The present study entitled “Reproductive biology of Rohida (Tecomella undulata (Sm) Seem.)” was conducted on naturally growing trees of Rohida at Balsamand (Hisar), Department of Forestry and in laboratory of Department of Seed Science and Technology and Department of Forestry, CCS Haryana Agricultural University, Hisar. Large bisexual flowers of red, orange and yellow colour started to emerge out with starting of spring season. The bud initiation started in last week of February and the flowering continued up-to third week of May. The flowering pattern showed a low rate initially during February gradually increasing to peak during mid-March and April followed cessation during end of April in some trees and decline in others. Flower development was divisible into five distinct stages. The average duration of flowering was 54.5 days. The flower bud took 15.5-19.5 days to come to bloom. Average time taken from stage I – II was 16.40 days while IV –V was 0.10 days. It was found that 40.99 to 47.38 days were required from bud initiation to fruit maturity. Flower anthesis was observed between 05.00 AM -01.00 PM with peak between 07.00 A.M. to 10.00 A.M. There was almost invariably no pod setting from May end onwards. It could be established that Rohida is strictly cross-fertilizing species. The considerable amount (5.55%) of fruit setting in open natural pollination (having many trees of Rohida in a close vicinity) and no fruit setting in selfing as well as negligible fruit setting (0.14%) on isolated tree has undoubtedly confirms the cross pollinated nature of Rohida. The large flower size and sufficient amount of nectar present in the flower also hinted towards the entomophilous nature. Maximum fruit setting took place from March to April. Pods were dark brown in colour with various shape curved or elongated. Pod and seed characters were recorded at the time of collection of seeds in order to study the extent of phenotypic variation in natural population. Pod length and No. of seeds per pod also showed significant variability. Pod length varies from 17.9 cm to 63.9 cm, while No. of seeds per pod varied from 67 to 218. Sufficient pods were collected from each of the ten randomly selected trees of Rohida. It could be established that top of paper at 25ºC has maximum germination of seeds of Rohida. The germination percent in fresh seed was observed from 54.67 to 69.33 % with an average of 62.13%, whereas the germination percent after six months of storage was observed from 10.67% to 20.00% with an average of 14.67%. Paired t-test showed significant loss in germination percent, Vigour Index-I, Vigour Index- II and Tetrazolium test after 6 months of storages. Vigour Index-I and Vigour Index-II reduced from 507.50 to 111.34 and 21360.03 to 4791.58 respectively. Loss of germination and reduction in vigour I, vigour index II and tetrazolium test was highly significant and very high. Non significant decrease was observed in seedling length and seedling dry weight after six months of storage which suggested that reduction in vigour index I and vigour index II was due to loss in germination percent and not because of seedling length and seedling dry weight respectively. These results suggested that six months after storage, quality planting stock can be produced by increasing the seed rate.