Informatics Publishing Limited

P. Kumar ¹, N. N. Pandey ¹, N. Okendro Singh ², N. Chandra ³, D. C. Mishra ³, P. K. Agrawal ³, A. Barat ¹, J. C. Bhatt ³

Affiliations
1 Directorate of Coldwater Fisheries Research (ICAR), Bhimtal-263 136, Nainital (Uttarakhand), IN
2 College of Agriculture, Central Agricultural University, Iroisemba - 795 004, Imphal, Manipur, IN
3 Vivakanand Pravatiya Krishi Anusandhan Sansthan (VPKAS), Almora (Uttarakhand), IN

Abstract

An experiment on rearing of common carp was carried out in three types of ponds viz. earthen pond, cemented tank and poly tank at field centre, DCFR, Champawat (Uttarakhand) and at selected farmers field of Champawat District to evaluate the growth performance of this fish species. ANCOVA results revealed that there are three distinct seasons which influence on length-weight relationship of common carp culture in these pond systems. The fish follows isometric growth in spring season (March-May); (however it does not follow in the remaining seasons). Further, there is no specific growth pattern of common carp observed in these pond environment. Logistic curve is the best fitted model to the dataset obtained from cemented pond. However, Richards and von-Bertalanffy curves are found appropriate to represent the growth pattern of this fish in earthen and poly tank, respectively. In the long run, higher growth of fish is predicted in poly tank.

Keywords

Poly Tank, Formulated Diet, Length-weight Relationship, Isometric Growth

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Deeksha Joshi ¹, K. S. Hooda ¹, J. C. Bhatt ¹

Affiliations
1 Vivekananda Parvatiya Krishi Anusandhan Sansthan (ICAR), Almora 263 601, Uttarakhand, IN

Abstract

Sixty cultures of Trichoderma were isolated from forty locations in Uttarakhand hills and screened for their ability to control ischolar_main rot ol" French beam caused by Rhizoctonia solani (Kuhn) and Fusarium solani (Mart.) Sacc. Under laboratory screening by dual culture methodology, maximum inhibition of radial growth of R. solani (61.7%) was observed with isolate Tr-21, while isolate Tr-34 showed maximum inhibition of mycelial growth of F. solani (46.4%), Based on the results of in vitro screening, 7 isolates (Tr-5, 14, 17, 21, 28, 34&45) were selected for glasshouse studies. Talc formulation of the 7 isolates was prepared and isolates were applied as both seed and soil treatment in glasshouse studies. Although all the 7 isolates significantly reduced the incidence of ischolar_main rot as compared to check, two isolates of T. harzianum viz., Tr-34 and Tr-14 were found most effective in glasshouse evaluation showing only 20.8 and 23.4 per cent ischolar_main- rot, respectively, These isolates were statistically at par with seed treatment with carbendazim, which showed 21,1 percent ischolar_main-rot. Treatment with isolate Tr-34 also resulted in significantly higher germination per cent and better plant vigour as compared to untreated control.

Keywords

Biological Control, French Bean, Root-Rot, Trichoderma.

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S. N. Sushil ¹, M. Mohan ¹, K. S. Hooda ¹, J. C. Bhatt ¹, H. S. Gupta ¹

Affiliations
1 Vivekananda Institute of Hill Agriculture (ICAR) Almora 263 601, Uttaranchal, IN

Abstract

Safer management tools against major insect pests of tomato and garden pea have been evaluated for the first time in Kumaon hills of northwest Himlilayas. In tomato, four releases of Trichogramma chilonis Ishii @ 50,000 insects/ha/release at an interval of 10 days from flowering initiation stage against fruit borer, Helicoverpa armigera (Hubner) and in garden pea, BSKE (Batain (Chinaberry, Melia azedarach) Seed Kernel Extract) (10 %) against pod borers, H. armigera and Lampides boeticus were found most promising. Planting a row of marigold after 10 rows of tomato, application of BSKE. azadirachtin (0.03%), HaNPV @250 LE/ha, Bacillus thuringiensis @ 1 kg/ha endosulfan (0.07%) have also significantly reduced the major insect pests of tomato and garden pea over control.

Keywords

Garden Pea, Hill Agriculture, Helicoverpa armigera, Liriomyza trifolia, Lampides boeticus, Phytomyza horticola, Tomato, Trichogramma chilonis.

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N. K. Hedau ¹, S. Saha ¹, A. Gahalain ¹, Arun Kumar ¹, P. K. Agrawal ¹, J. C. Bhatt ¹

Affiliations
1 Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora - 263 601, IN

Abstract

Natural biodiversity for functional and nutritional quality traits is of prime importance in breeding programmes for developing nutritionally rich genotypes. The present investigation was carried out to identify lines of sweet pepper with high ascorbic acid content and important mineral nutrients like potassium, phosphorus, zinc, copper, iron and manganese. Forty accessions of sweet pepper (Capsicum annuum L.) were analyzed for their functional and nutritional composition. Wide variation was observed in functional quality traits like ascorbic acid content (22-129mg 100g^-1), and β-Carotene (0.39-1.0mg 100g^-1) suggesting a considerable level of genetic diversity. Wide variability was also noticed for nutritional composition (K, P, Zn, Cu, Fe&Mn) in the tested lines. Across accessions, concentration of ascorbic acid was negatively correlated with copper content (r = -0.293, p < 0.05) being significantly greater in two accessions, VHC 34 and VHC 37 (129 and 118.0 mg100g^-1, respectively) compared to other accessions. β-Carotene concentration was higher (0.85 to 0.99mg 100g^-1) in six accessions, and lower (0.39 to 0.54mg 100g-1) in twenty four accessions. Greater variability present for quality traits holds an immense potential to help develop Capsicum lines with traits of high functional and nutritional quality. Therefore, this information is potentially useful in sweet pepper breeding programmes in the future.

Keywords

Sweet Pepper, Variability, Correlation, Nutritional Quality.

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