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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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20202
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Author: SHARMA, AKSHAY × End date: 2020 × Start date: 2020 × Type: Thesis ×
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    ThesisItemOpen Access
    STUDIES ON GENE ACTION, COMBINING ABILITY AND HETEROSIS FOR YIELD AND ITS COMPONENT TRAITS IN RICE FOR UPLAND CONDITION OF HIMACHAL PRADESH
    (CSKHPKV Palampur, 2020-08-05) SHARMA, AKSHAY; Pandey, D.P.
    The present study was undertaken to estimate the nature and magnitude of gene action, combining ability and heterosis for yield and its component traits in rice using line × tester mating design. During Kharif, 2018, eleven lines of rice viz., HPR 2410, HPR 2652, HPR 2703, HPR 2842, HPR 2869, HPR 2874, HPR 2876, HPR 2881, HPR 2883, LGP 26 and LGP 123 were crossed with three testers viz., HPR 1156, HPR 2656 and HPR 2795. These thirty-three crosses along with their parents were evaluated in RBD during Kharif, 2019 at the Experimental Farm of R&WRC, Malan. Analysis of variance for line × tester mating design with respect to parents, crosses and parents vs. crosses revealed significant differences for all the traits studied except days to 50% flowering, total tillers/plant, grain breadth and L: B ratio. Magnitude of additive genetic variance (σ2A) was found to be higher than dominant genetic variance (σ2D) for days to 50% flowering, days to maturity, grain length, grain breadth and L: B ratio, whereas, magnitude of dominant genetic variance (σ2D) was found to be higher for plant height, panicle length, total tillers/plant, effective tillers/plant, spikelets/panicle, grains/panicle, spikelet fertility, grain yield/plant and 1000-grain weight. Heritability (narrow-sense) was low (< 50%) for all the traits, although the highest narrowsense heritability was observed for the days to maturity (34.78%) followed by spikelets/panicle (27.33%) and spikelet fertility (26.38%). Genetic advance was highest for grain length (99.43%) followed by days to 50% flowering (92.68%), panicle length (76.47%) and plant height (73.10%). The line, HPR 2410 is good general combiner for days to maturity, plant height, grains/panicle and 1000-grain weight, HPR 2703 is good general combiner for plant height, panicle length, total tillers/plant, effective tillers/plant, spikelets/panicle and grain yield/plant, HPR 2842 is good general combiner for days to maturity, grains/panicle, spikelet fertility, grain length and L: B ratio, HPR 2869 is good general combiner for plant height, panicle length, spikelets/panicle, grains/panicle and grain yield/plant, HPR 2876 is good general combiner for days to 50% flowering, days to maturity, panicle length and grain length, and LGP 26 is good general combiner for days to maturity, total tillers/plant, effective tillers/plant, grain yield/plant, 1000-grain weight, grain length and grain breadth. The cross, HPR 2881 × HPR 2656 is good specific combination for plant height, panicle length, spikelets/panicle, grains/panicle and the cross HPR 2652 × HPR 2656 is good specific combination for days to maturity, total tillers/plant, effective tillers/plant, spikelets/panicle, grains/panicle, grain yield/plant and the cross HPR 2869 × HPR 1156 is good specific combination for days to 50% flowering and L: B ratio. The cross LGP 26 × HPR 1156 is good specific combination for spikelets/panicle, grain yield/plant, 1000-grain weight and grain breadth. The cross HPR 2876 × HPR 2656 is good specific combination for spikelet fertility and grain length. Cross combinations LGP 26 × HPR 1156 followed by HPR 2703 × HPR 2795, HPR 2652 × HPR 2656, HPR 2881 × HPR 2656, HPR 2876 × HPR 1156 and HPR 2869 × HPR 2656 exhibited highest heterosis over standard check for grain yield/plant. All the genotypes/cross combinations seemed to be highly resistant or resistant to leaf blast and neck blast under natural conditions during the crop season.
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    ThesisItemOpen Access
    EFFICACY OF SOME OVULATION SYNCHRONIZATION PROTOCOLS IN DAIRY COWS DIAGNOSE D WITH POST PARTUM SUB CLINICAL ENDOMETRITIS
    (CSKHPKV Palampur, 2020-12-03) SHARMA, AKSHAY; Singh, Madhumeet
    The study was conducted on 45 post-partum dairy cows at Livestock Farm Complex, Dr. G.C. Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur. Assessment of energy reserves i.e. body condition score (BCS) and back fat thickness (BFT), was done at weekly interval up to 8 weeks post-partum along with serum leptin estimation to investigate its association with occurrence of sub-clinical endometriris (SCE). For diagnostic purpose, endometrial cytology via cytotape method was carried out as confirmatory test for diagnosis of SCE i.e. polymorphonuclear cells (PMNCs) proportion ≥1 per cent. Also, trans-rectal Doppler ultrasonography at a weekly interval i.e. day 0 to 56, along with B-mode for assessment of uterine involution and resumption of ovarian activity, was used. Serum inflammatory markers such as Interleukin-6 (IL-6) and C-Reactive protein (C-RP) levels were estimated for drawing a relation with SCE. MG6G and MG6GP modified estrus synchronization protocols were applied to study their effect on PMNCs proportion during SCE and post-partum reproductive performance. On the basis of endometrial cytology, the incidence of sub-clinical endometritis positive and clinical endometritis positive cows was 60 and 8.89 per cent, respectively at 8 weeks post-partum, however, the cows in sub-clinical endometritis negative group had an incidence of 31.11 per cent. BCS and BFT were significantly lower (p<0.05) in SCEP cows as compared to SCEN cows on the day 0 and 56 post-partum, however, serum leptin concentrations were significantly low (p<0.05) only on day 0 post-partum in SCEP cows. Haemodynamic indices i.e. Time averaged maximum velocity and Blood flow volume- Time averaged maximum velocity, and diameter of middle uterine artery ipsilateral to gravid uterine horn was significantly higher (p<0.01 & p<0.05) on day 0 and 56 post-partum in SCEP and CEP cows as compared to SCEN cows. Serum concentrations of IL-6 and C-RP were significantly higher (p<0.01 & p<0.05) in SCEP and CEP cows as compared to SCEN cows at 8 weeks post-partum. MG6G and MG6GP modified estrus synchronization protocols led to a significant (p<0.05 & p<0.01, respectively) reduction in PMNCs proportion and serum IL-6 concentration on the day of estrus in cows under SCEP group. MG6GP modified estrus synchronization protocol fared better in terms of achieving conception i.e. 60 per cent vs. 30 per cent in MG6G protocol and also, resulted in a significant decrease (p<0.01) in days open of SCEP cows as compared to cows under SCEP control and CEP group.