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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: Daneva, Vijay × Start date: 1993 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Plus tree selection, progeny testing, breeding behaviour and evaluation of genetic diversity in Tecomella undulata (Sm.) Seem
    (CCSHAU, Hisar, 2021-01) Daneva, Vijay; Beniwal, R.S.
    Tecomella undulata (Sm.) Seem is an important shrub or small tree, mainly found in northwestern India and southern Pakistan. Now a days, the plant is under endangered category due to its over exploitation coupled with minimum conservation and reforestation efforts. The vital importance of Rohida in present day context in terms of its multiple different uses in general and lack of knowledge on its genetic characters especially breeding behaviour, selection of superior trees, testing of progeny and use of molecular markers for diversity analysis. The study of phenology, flowering nature and reproductive biology was carried out on the already existed plants at village Luttu, District Jhunjhunu, Rajasthan. The remaining part of the investigation was studied by collecting thirty three plus trees from different agro-climatic zones of Haryana and Rajasthan on the basis of desirable traits. Analysis of diversity was assessed by using ISSR markers. Mild defoliation started in last week of November which continued till 4th week of March. In majority of trees, the leaves turned to yellowish brown during the last week of December followed by high rate of defoliation, however, complete leaflessness stage was never seen in any of the tree observed. Within a week of leaf emergence, floral bud emergence started in 4th week of February which continued till 1st week of March. Observations on flowering habit indicated that bud began to appear as small protruding structures in the 4th week of February. Peak period of flowering varied from 22-30 days. Flowering got completed by April end to first week of May. The maximum flowering (37.21%) was recorded between 0800-0900 h. Pod initiation started after the completion of flowering i.e. in the 2nd week of May. The period of pod development and maturity ranged from 65 to 72 days. The pod maturity was observed from 2nd fortnight of June onwards. Duration of bud initiation to pod maturity varied from 141 to 152 days. Pollen stainability in 1% acetocarmine ranged from 80.00 to 88.18 per cent with an average of 82.97 per cent. The pod setting under open pollination ranged between 7.14- 17.50 with an average of 12.40 and no pod setting under selfing. It was clear that average pod setting under selfing and open pollination differed significantly which results that open pollinated nature of this particular specie. A considerable amount of variation for different morphological characters such as height, clear bole height, girth at breast height etc. was found among twenty one diverse plus trees for morphological traits. Ample genetic variation was also observed for field emergence, seedling height, basal diameter, root length and number of branches among the progenies of the selected plus trees. By the study both in nursery and under controlled environment, it was estimated that progeny of plus tree ATU 28 from Ghanghu (Churu), Rajasthan showed the maximum growth performance and higher vigour value amongst all the progenies. 13 ISSR primers were used to assess the genetic diversity and average 62.36% polymorphism was detected amongst 24 genotypes of Tecomella undulata. The similarity indices between different genotypes ranged from 0.46 to 1.00. Maximum similarity value of 1.00 was observed between TU8, TU14, TU15 and TU24 whereas TU9 was found to be genetically most diverse amongst all genotypes with lowest similarity value of 0.46. Ample genetic variation was found amongst all the collected genotypes using ISSR markers which can be utilized for breeding programs to develop new varieties.