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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: Floriculture and Landscaping × Start date: 2011 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Effect of pinching and gibberellic acid on growth, flowering and yield of African marigold (Tagetes erecta L.) under different seasons
    (CCSHAU, 2017) Sonu Kumari; Beniwal, B.S.
    The present experiment entitled “Effect of pinching and gibberellic acid on growth, flowering and yield of African marigold (Tagetes erecta L.)” under different seasons was conducted at Experimental Orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar during the crop season of 2015-16. Treatments comprised of four levels each of pinching (P1 - No pinching, P2 - Pinching at 2 WAT, P3- Pinching at 3 WAT and P4 - Pinching at 4 WAT) and gibberellic acid (G0 - Control, G1 - 150 ppm, G2 - 250 ppm and G3 - 350 ppm) with two different seasons i.e. winter and summer. This experiment comprising sixteen treatments in each season was laid out as factorial Randomized Block Design with three replications. Five competitive plants were randomly selected from each treatment to record data on growth, flowering, flower yield and seed parameters. Statistical analysis of data revealed that application of GA3 250 ppm on plants pinched at two weeks after transplanting showed better results in terms of growth, flowering and yield of African marigold. In summer season, maximum fresh & dry weight of plant, number of buds and flowers per plant and seedling shoot length was observed with application of GA3 250 ppm and pinching at 2 week after transplanting while, maximum flower yield, 1000 seeds weight, seed yield, seed germination, seedling root length, seedling dry weight and seed vigour-I&II observed in winter season. It was also recorded that earliest appearance of 1st flower was observed in un-pinched plants sprayed with GA3 350 ppm during summer season, however, earliest bud initiation, maximum flower diameter, duration of flowering, fresh & dry weight of flower, number of seeds and number of black seeds per capitulum were recorded in un-pinched plants of winter season.