Browsing by Author "SHARMA, RAJESH"
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ThesisItem Open Access EFFECT OF GROWTH RETARDANTS ON GROWTH AND FLOWERING OF Eustoma grandiflorum (Raf.) Shinn.(UHF,NAUNI,SOLAN, 2011) SHARMA, RAJESH; BHALLA, RAJESHABSTRACT The present investigation was carried out at Regional Horticulture Research Station, Mashobra, Shimla of Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) from March, 2010 to January, 2011 with the objective to study the effect of growth retardants (daminozide & paclobutrazol) on growth and flowering of Eustoma grandiflorum (lisianthus). The experiment was laid out in a completely randomized design consisting of 9 treatments, replicated five times and each having 5 pots. Seedlings were planted in pots of 6 inch size containing a sterilized potting mixture of soil: sand: vermicompost in equal ratio. The seedlings were pinched at 6 to 8 cm height and sprayed with daminozide @ 1000, 2500, 5000 & 7500 ppm and PP333 @ 10, 15, 20 & 25 ppm after 14 days of pinching. Earlier flowering, more number of flowers open at a time, larger flowers with longer duration, maximum number of shoots per plant with better plant spread and presentability was obtained when the plants were sprayed with 7500 ppm daminozide and this treatment was at par with 25ppm paclobutrazol for enhancing the more economical traits in the production of pot lisianthus.ThesisItem Open Access INVESTIGATIONS ON THE POLLINATOR FAUNA IN SELECTED ECO-ENVIRONMENTAL CONDITIONS OF HIMACHAL PRADESH AND PROMOTING POLLINATOR HUSBANDRY(2012) SHARMA, RAJESH; GUPTA, J.K.ABSTRACT The present study on “Investigations on the pollinator fauna in selected ecoenvironmental conditions of Himachal Pradesh and promoting pollinator husbandry” were carried out in the Departement of Entomology and Apiculture, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.). During the course of investigations, an initiative has been taken up to use standard protocol of sweep net method, counter method and pan trap to record base line data which can be used in future for making comparison of pollinators diversity in space and time. The studies were conducted in 3 different eco-environmental conditions of Himachal Pradesh. Forty seven insect species from blooms of different plants and 26 species from pan traps were found at Solan. The activity of wild honey bees, A. dorsata and solitary/other wild bees was found low as compared to earlier studies conducted by different workers in the same area. It is concluded that to characterize local bee fauna, there is need to supplement pan trapping protocols with the netting. On apple at Kullu, 9 species belonging to 6 families and 3 orders were observed. Some effect of distance from natural forest area on pollinator visitation and fruit set was visualized at Kullu. There was no effect of scented sugar syrup on directing A. mellifera to apple bloom. Further studies are required to work out the number of flowers for making scented syrup more effective in attracting the bees. Fourteen species belonging to 7 families and 3 orders were observed on apple bloom at Tabo (Spiti valley). However, in pan traps 12 species belonging to 7 families and 3 orders were trapped. Higher fruit set was observed at Tabo during 2011 when A. mellifera colonies were kept by farmers for pollination. Nesting sites of different solitary bees viz. Halictus sp., Ceratina sp. and Megachile sp. were located from Solan, Kullu and Tabo, respectivelyThesisItem Open Access VARIABILITY AND CORRELATION STUDIES IN SPEARMINT (MENTHA SPICATA LINN.) FOR OIL CONTENT AND ASSOCIATED CHARACTERS(DEPARTMENT OF FOREST PRODUCT AND UTILIZATION DR. YASHWANT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY ; SOLAN, 1989) SHARMA, RAJESH; RASTOGI, J. M. SINGH;