Journal of Applied and Natural Science
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Effect of integrated nutrient management on growth, productivity, quality and nutrient uptake of irrigated yellow sarson (Brassica campestris L var. yellow sarson) in older alluvial soil of West Bengal
Get PDFA field experiment was conducted during rabi (winter) seasons of 2007-08 and 2008-09 to study the effect of integrated nutrient management on growth, yield, oil content and nutrient uptake of yellow sarson (Brassica cam-pestris L var. yellow sarson) in older alluvial soil of West Bengal. Significantly higher leaf area index (1.75 at 40 days after sowing; DAS), dry matter accumulation (1366.9 g/m2 at 80 DAS) and highest number of siliquae/plant (118.3), number of seeds/siliqua (21.8), seed yield (1.90 t/ha), stover yield (3.86 t/ha) were recorded significantly (at 5% lev-el) higher with poultry manure (PM) @2.5t/ha +50%RDF (Recommended Dose of Fertilizer i.e. 80-40-40 of N-P2O5-K2O kg/ha) + PSB (phosphate solubilising bacteria) + AZ (Azotobacter) during both the years and on pooled basis. An average of 30.5% and 233% increase in seed yield by this treatment was recorded over sole application of RDF and control respectively. Integrated application of PM (2.5 t/ha) + 50% RDF + PSB + AZ recorded highest oil content (43.16%) and positive effect on soil fertility status. The highest benefit: cost ratios (2.26 and 2.4 in 2007-\u2708 and 2008-\u2709 respectively) were achieved from the use of 50% RDF + PM (2.5 t/ha) +PSB+AZ
Estimation of genetic diversity among sugarcane (Saccharum species complex) clones
Get PDFhe experimental materials consisted of 36 sugarcane clones including two checks (Co Pant 97222 and Co Pant 3220). Analysis of variance revealed significant differences among all the clones for all the traits under study namely no. of millable canes, cane height, single cane weight, juice sucrose percent , purity percent , cane yield and CCS yield except cane thickness, juice brix and juice extraction percent. The divergence studies through Mahalanobis D2 statistics grouped the 36 genotypes into eleven clusters. The maximum numbers of genotypes (21) were grouped in clusterI and the lowest (1) in cluster VI,VII,VIII,IX,X and XI. Members of cluster VII and XI (46.48) were found to be genetically most diverse on the basis of their inter cluster difference as opposite to clusters I and II (10.77) which are closely related. Cane height contributed maximum (15.397%) towards genetic divergence followed by Single cane weight (14.762%) and no. of millable cane (13.016%). These characters were considered to be most important for the genetic diversity. Lowest contribution was made by juice purity percent (4.286%) followed by Cane thickness(7.301%),Juice extraction percent (7.619%). Genetic diversity is important for sustainable production since greater losses of characteristics in any population limits its chances of survival. Little to no genetic diversity makes crops extremely susceptible to widespread biotic and abiotic stresses. Genetic diversity can be assessed by Mahalanobis D2 statistic, which is a morphometric method and a powerful tool in quantifying the degree of divergence at genotypic level
Effect of planting techniques and weed control treatments on growth and yield of wheat
Get PDFA field experiment was conducted to study the effect of different planting techniques (conventional drill sowing at 16, 18 and 20 cm row spacing and bed planting with two and three rows in main plots) and weed control treatments (pinoxaden 50 g/ha, ready-mix (RM) of carfentrazone and metsulfuron 25 g/ha and pinoxaden 50 g/ha + RM of carfentrazone and metsulfuron 25 g/ha in subplots) on growth and productivity of wheat. The grain yield under row spacing 18 cm (53.30 q/ha), and 20 cm (52.02 q/ha), and three rows bed planting (51.96 q/ha) were recorded statistically at par with each other and significantly higher than 16 cm (49.37 q/ha) row spacing and two row bed planting (48.53 q/ha). Gross returns (Rs. 95637/ha) and net returns (Rs. 43929/ha) and B:C ratio (1.85) were record-ed higher under 18 cm row spacing compared to other planting techniques. Tank mixed application of pinoxaden 50 g/ha + RM of carfentrazone and metsulfuron 25 g/ha applied at 35 days after sowing (DAS) controlled both grassy and broad leaved weeds effectively with lower values of weed dry matter accumulation (7.67 g/ha) and produced growth parameters, yield attributes and yield (53.16 q/ha) at par with weed free treatment. In light of the results to maximise productivity, 18 cm row spacing may be practiced and tank mix application of pinoxaden (50 g/ha) + RM of carfentrazone and metsulfuron (25 g/ha) is recommended to reduce losses due to complex weed flora in wheat
Integrated nutrient management for high productivity and net returns in lentil (Lens culinaris)
Get PDFThe experiment was conducted to study the integrated nutrient management for high productivity and net returns in lentil. Results revealed that nodulation was significantly (P?0.01) enhanced in treatments comprising of Rhizobium and phosphate solubilizing bacteria (PSB) along with recommended dose of fertilizer (RDF), farmyard manure (FYM) and vermicompost. Treatments comprising of Rhizobium + PSB along with RDF, 50% RDF, FYM and vermicompost showed higher nodule dry weight as compared to the treatments without biofertilizers. Pods plant-1 was highest in RDF + Rhizobium + PSB. Combination of different organic sources with RDF resulted in significantly (P?0.001) higher grain yield than RDF only. RDF + 5 t ha-1 FYM resulted in 26.3 and 6.7 per cent higher grain yield over control and RDF alone, respectively. RDF + Rhizobium + PSB recorded the highest net returns (Rs 40321 ha-1) and B:C ratio (3.78). It can be concluded that supplementing the recommended dose of nutrients (12.5 kg N + 40 kg P2O5 ha-1) with 5 t ha-1 FYM or 2 t ha-1 vermicompost or Rhizobium + PSB inoculation help in obtaining high grain yields and net returns in lentil
Jute seed production as influenced by dates of sowing and topping in red and laterite zone of West Bengal
Get PDFAn experiment was carried out during thekharif season of two consecutive years 2014 and 2015 at Regional Research Sub-station, Raghunathpur, Bidhan Chandra Krishi Viswavidyalaya, Purulia, West Bengal with the view to maximise the jute seed yield by manipulating certain non-monetary techniques like dates of sowing and topping associated with crop production. The Capsularis variety Bidhan pat-3 was sown in three different dates (1st-25th June, 2nd-15th July and 3rd-5th August) with 3 topping (clipping of apical portion) practices at 30, 45 and 60 days after sowing (DAS) as separate treatment with no topping as control. These different agronomic practices significantly (at 5 % probability level) influenced the performance of the crop in various aspects. The 1st date of sowing showed its supremacy in terms of expression of the crop in the field in all the aspects achieving a seed yield of 709.50 kg ha-1 and 737.85 kg ha-1 during first and second year respectively, whereas, the last date of sowing showed its inferiority obtaining a seed yield of 590.10 kg ha-1 and 647.13 kg ha-1all through the first and second year respectively.1stdate of sowing also recorded higher net return(Rs. 33721.50 ha-1& Rs.35989.50 ha-1 during first and second year) and benefit: cost ratio (1.46 and 1.56 in first and second year) over the other two date of sowing. How-ever, maximum seed yield was achieved when the crop was topped on 45 DAS (728.80 kg ha-1 and 773.57 kg ha-1 during first and second year) irrespective of the date of sowing
Effect of Bacillus spp. on Gerbera plant growth and control of Meloidogyne incognita
Get PDFA greenhouse experiment was conducted to evaluate the efficacy of Bacillus spp. against Meloidogyne incognita (Kofoid and White) Chitwood infesting gerbera plants (Var. Valletta). Investigations were undertaken in pots filled with 5 kg of sterilized potting mixture consisting of red soil:sand:FYM (2:1:1 v/v) to assess the effect of liquid and talc formulations of Bacillus spp. viz., B. subtilis strain BG42, B. subtilis strain BG37 and B. amyloliquefaciens strain B4. The results indicated that Soil drenching of liquid formulation of B. subtilis strain BG42 @ 1%/m2 (1x108 colony forming units/g) gave maximum reduc-tion of juveniles per 250g soil (67.40%), number of adult females/5g root (73.46%), number of eggmass/5g root (69.44%), gall index (1.67) and increased flower yield/m2 (127.03%). Soil drenching of liquid formulation of B. subtilis strain BG 37 were next in line in efficacy. Further liquid formulation of B. subtilis strain BG42 had a positive influence on growth parameters viz., shoot length, root length, shoot and root weight, number of leaves / plant and flower yield/m2 and quality parameters viz., flower diameter, colour of the flower, length of flower stalk and vase life . The endophytic colonization potential of the Bacillus spp. introduced into the soil was confirmed by reisolating them from gerbera roots
Investigation on effect of time of planting in cucumber (Cucumis sativus L.) under polyhouse conditions in Manipur, India
Get PDFAn experiment on the standardization of time of planting for growing cucumber(Cucumis sativus L.) inside polyhouse was conducted during 2010-11 at the Horticutural Experimental Field, College of Agriculture, Central Agricultural University, Imphal (Manipur), India. The experiment comprised of four dates of planting (September, October, November and December) and two cucumber varieties viz.Alamgir CT 280 and Alamgir CT 380, in Factori-al Randomised Block Design with three replications and eight treatments.Impact of time of planting was established on vegetative characters; flowering and fruiting characters; yield and yielding attributes. Effect of different time of planting and variety on growth of cucumber was found to produce significant effect (at 5% level of probability) on main vine length, numbers of leaves per plant and leaf area. For both the varieties, September planting gave maxi-mum values of main vine length (221.93 cm and 240.51 cm, respectively), number of leaves per plant (21.21 and 21.92, respectively) and leaf area (393.26 cm2 and 413.76 cm2, respectively). The treatment combination of Septem-ber planting with Alamgir CT 280 gave shorter number of days (12.6) from fruit set to maturity. The different time of planting and varieties and their interactions showed significant effect on number of fruits per plant, fruit length (cm), fruit diameter (cm), single fruit weight (g), fruit yield/plant (kg) and fruit yield/ha (t). The results revealed that the treatment combination of September planting with Alamgir CT 380 gave the highest yield (47.31t/ha), as compared with October, November and December plantings. However, the maximum cost- benefit ratio (1: 2.24) was found in October planting. The present study suggests that cucumber can be grown successfully during winter months under polyhouse in Manipur, India condition
Comparative evaluation of Doolittle, Cupkit and Karl Jenter techniques for rearing Apis mellifera Linnaeus queen bees during breeding season
Get PDFComparative evaluation of Doolittle, Karl Jenter and Cupkit techniques of Apis mellifera Linnaeus queen bee rearing was done during spring (mid February- mid April 2013) breeding season. The highest acceptance of cell cups (66.00 %), queen cells raising (64.00 %), their sealing (60.67 %) and emergence of gynes (54.67 %) was recorded in Cupkit apparatus. Maximum weight of newly emerged gyne was recorded in Doolittle method in plastic cell cups (212.36 mg), while the mean weight was 184.96 mg in case of Cupkit apparatus. Overall, Cupkit proved to be the best option for queen bee rearing because of its better performance in terms of acceptance of larvae (66.00 %) and the number of successfully produced gynes i.e. 16 queens/colony/cycle of 12 days
Effect of seed treatment, soil application and foliar spray of some insecticides on seed quality of bell pepper (Capsicum annuum L.)
Get PDFStudies were carried out to evaluate the efficacy of some insecticides as seed treatment, soil application and foliar sprays on seed quality characters of bell pepper (Capsicum annuumL.) cultivar Solan Bharpur during Kha-rif season 2013. The treatments comprised of seed application of imidacloprid (Gaucho 600FS) and thiamethox-am (Cruiser 70WS), soil application of neem cake@ 2 q/acre and carbofuran @ 6 kg/acre and foliar sprays of im-idacloprid (Confidor 200 SL), thiamethoxam (Actara 25 WS), indoxacarb14.5 SC @ 0.5ml/l, NSKE (neem seed ker-nel extract) @ 5%, Neem Raj 500ppm @ 2.5ml/l and control. The observations regarding quality parameters record-ed were germination percentage, seedling length, seeding dry weight, seed vigour index-I, seed vigour index-II and electrical conductivity. The results revealed that treatment combination viz., seed treatment and foliar spray with thiamethoxam (S2F2) recorded significantly higher germination percentage (96.33%), seed vigour index-I (934.10), seed vigour index-II (245.02) and minimum electrical conductivity (216.67dSm-1) at 0.05 level of significance. Therefore, seed treatment and foliar spray of thiamethoxam may be recommended for quality seed production of bell pepper
Haematological alterations due to lung diseases in sheep and goats of Jammu region
Get PDFThe present study was conducted for evaluation of haematological parameters in sheep (330) and goat (230) having various lung affections that were slaughtered routinely as a source of food in Jammu region (Gujjar Nagar, Dogra Hall, Bishnah and Nagrota). About 25.75% (85) and 21.30% (49)of lungs examined in sheep and goats respectively were found to have parasitic infestation of Hydatidosis, Myiasis and Mulleriuscapillaris. Furthermore about 31.81% (105) and 29.13% (67) of selected lungs had pathological conditions of pneumonia, abscess and haemorrhage in sheep and goats respectively. Diseased sheep and goats reflected significant decrease in haemoglobin (Hb), packed cell volume (PCV) and erythrocytes (RBC) in parasitic infestation of Myiasis as compared to control while non significant alteration in these parameters was observed in conditions of Hydatidosis, M. capillaris, pneumonia, abscess and haemorrhage. Mean corpuscular volume (MCV) decreased significantly in Myiasis of sheep and haemorrhagic lungs of goats while no significant change was observed in mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC) values. Significant increase in leucocytes (WBC), neutrophils, monocytes, eosinophils were observed in both sheep and goats affected with various parasitic and pathological lung disesases with no significant change in basophilic count. Lymphocytic count decreased in all these adversed lung conditions as compared to healthy ones. Parasitic infection though not mixed one especially that of Myiasis comparatively has significant affected on blood parameters. The present study signifies the complementary importance of ante -mortem examination with that of post-mortem inspection in various parasitic and pathological affections of lungs