Balasaheb Sawant Konkan Krishi Vidyapeeth Research Articles

Citation Analysis of Post Graduate Theses Submitted to Department of Renewable Energy Sources in College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Maharashtra

Citation analysis helps to understand the different ways that users look for material. Citation analysis can be used to calculate the obsolescence rate. Finding the rate of obsolescence of publications in the field of renewable energy sources is the aim of this study. Citation analysis is being done on M.Tech. (Agril.Engg.) PG theses that were submitted to the College of Agricultural Engineering and Technology's department of Renewable Energy Sources. The study uses theses that were submitted between 2017 and 2021. There are 14 theses in total, with 707 citations. Analysis is also conducted to determine the Authorship pattern and Types of Information Sources that the researchers mentioned in their theses.

Use of Open Courseware by Engineering Students of Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth Dapoli Dist.-Ratnagiri Maharashtra: With Reference To NPTEL

Use of Open Courseware by Engineering Students of Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth Dapoli Dist.-Ratnagiri Maharashtra: With Reference To NPTEL

Effect of plant growth regulator (PGR) and cultural practices on supression of post monsoon vegetative flush in relation to physiological and yield parameters of alphonso mango (Mangifera indica L.)

This experimental work was performed on Alphonso mango treeat Centre of Excellence for Mango, Department of Horticulture, Dr. Balasaheb Sawant Konkan KrishiVidyapeeth, Dapoli, during mango growing season summer-winter 2016 -2017 and 2017-2018. It is observed that the post- monsoon vegetative flush in mango trees affects reproductive phase that ultimately cause huge economic loss and so the study aimed at the effect of plant growth regulator (PGR) and cultural practices on supression of post monsoon vegetative flush in relation to physiological and yield parameters. The experiment laid out in ten treatments viz,. T1_ control,T2_ CCC-1500 ppm,T3_CCC-2500 ppm,T4_foliar spray of diammonium phosphate 3%,T5_PBZ-500 ppm,T6_PBZ-1000 ppm,T7_ PBZ- 2000 ppm,T8_ Soil opening upto the depth of 4-5 inch at tree basin region once in last week of September,T9_ Soil opening upto the depth of 4-5 inch at tree basin region once in last week of October and T10_Soil opening upto the depth of 4-5 inch at tree region twice in last week of September and last week of October. Among physiological parameters considered, the rate of photosynthesis was maintained at significantly highest rate (7.44 μmol CO2 m-2s-1) by treatment T10. The rate of respiration was found to be increased from before bud break stage to bud break stage and then declines towards flower initiation stage. In case of rate of transpiration, treatment T10 maintained significantly highest rate of respiration from before bud break stage to flower initiation stage and recorded highest rate of respiration at bud break stage (-6.03 μmol CO2 m-2s-1). In case of yield, treatment T10 recorded significantly minimum days required for harvesting (102.16 days) from flowering among all treatments. Significantly maximum days required for harvesting (129.83 days) was recorded by T1.The treatment T10 recorded significantly maximum number of fruits per plant (188.50) followed by treatment T3 (184.16), significantly minimum fruits per tree (89.50) was recorded by T1.The fruits per tree (kg) was found to be significantly higher (48.96 kg) in T10.

Evaluating in vitro Compatibility of Pesticides with Metarhizium anisopliae (Metchnikoff) Sorokin and Its Pathogenicity against Aphis craccivora Koch

An in vitro trial was conducted in the Department of Entomology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri, Maharashtra; to determine the compatibility of green muscardine fungus, Metarhizium anisopliae (Metachnikoff) Sorokin with pesticides and its pathogenicity against A. craccivora. Azadirachtin, Buprofezin and Sulphur were the most suitable pesticides as it showed significantly superior growth on potato dextrose agar media over untreated control. However, Emamectin benzoate, Azadirachtin, Profenophos, Indoxacarb, Thiophanate, Paraquat Dichloride and Glyphosate showed significantly higher mean mycelial weight over the untreated control on potato broth medium. At the same time, amongst pesticides used in the experiment; only insecticides (Emamectin benzoate, Azadirachtin and Deltamethrin) reported synergistic increase in conidial count with the untreated control, while fungicides and herbicides reported drastic reduction in conidial count. The pathogenicity of M. anisopliae harvested from the pesticide treatments against A. craccivora revealed that all the pesticides investigated had reduced its pathogenicity in comparison to untreated control. However Emamectin benzoate, Indoxacarb and Paraquat dichloride showed maximum per cent mortality and can be used in combination with M. anisopliae.

Citation analysis of Post Graduate Theses submitted to Department of Post Harvest Management of Meat, Poultry & Fish in Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli

Citation analysis of Post Graduate Theses submitted to Department of Post Harvest Management of Meat, Poultry & Fish in Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli

Studies on changes in chemical constituents of raw mango powder (Amchur) during storage

Study was done on changes taking place in chemical constituents of raw mango powder (Amchur) during storage in the post-harvest technology laboratory of the horticulture section of Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Maharashtra. The biochemical analysis of nutritional values viz acidity, ascorbic acid, starch and beta-carotene were carried out and were found to be decreased during a period of 9 months and the moisture, total soluble solids, reducing sugar and total sugar were found to be increased.

Economics of chemical and non-chemical approaches for induction of early flowering in mango cv. Alphonso

Mango cv. Alphonso is established on more than 90 per cent of area in Konkan region of Maharashtra. Early flowering is for early harvest which assures premium rate in market. In recent years climatic aberrations such as delayed rains especially during initiation of flowering badly affected the performance of Alphonso. The delayed flowering further delay fruit development and harvesting. The late harvested fruits often trapped in early rains and fetches low market price. An attempt was made to estimate benefit ratio and net returns of various non-chemical approaches for mango cv. Alphonso in relation to early induction of flowering which lead to early harvesting to earn lucrative market price. The experiment entitled “Economics of chemical and non-chemical approaches for induction of early flowering in mango cv. Alphonso” which was conducted at college of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli during the year 2018-19 and 2019-20. Experiment was laid out in randomized block design with seven treatments viz., T1- removal of new shoots, T2- removal of old shoots below new, T3- foliar spray of paclobutrazol @ 500 ppm, T4- foliar spray of paclobutrazol @ 1000 ppm, T5- foliar spray of ortho-phosphoric acid @ 0.5 %, T6- foliar spray of ortho-phosphoric acid @ 1 % and T7- control which were replicated at thrice. From the pooled analysis, early induction of flowering was rapid in T1(35.83 days) and had maximum yield (6.19 t/ha), higher gross return (Rs.309657), maximum net profit (Rs.217781.70) and highest B:C ratio (3.37) which was followed by T2 (3.34), T3 (2.99) and T4 (2.75). The minimum yield (2.90 t/ha), gross return (Rs. 124860), minimum net profit (Rs. 65509.20)with minimum B:C ratio were found in control.

Surface sterilization and callus induction potential of various indica rice (Oryza sativa L.) Varieties

The present study was conducted to standardize the efficient and reliable surface sterilization and callus induction protocol for 22 rice (Oryza sativa L.) varieties developed by Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Maharashtra (India) using different combinations of various plant growth regulators. The dehusked mature rice seed was used as explant. Prior to callus induction, surface sterilization protocol was standardized using 70% ethanol and different concentrations of mercuric chloride (HgCl2). The results revealed that surface sterilization treatment with 70% ethanol for 1 min, followed by 1.0% HgCl2 for 10 min and then washing the seeds 4-5 times was most effective in establishing maximum aseptic cultures (86.67%). Callus induction potential differed significantly among the rice varieties for the concentrations of plant growth regulators in MS medium. Rice cv. ‘Ratnagiri-711’ followed by cv. ‘Karjat-8’ were most superior in callus induction and proliferation potential with the respective callus induction frequency of 87.56 and 87.0%, and callus weight of 269.37 and 235.20 mg after 45 days of inoculation. The supplementation of 2,4-D @ 1.0 to 2.0 mg L-1 along with 0.5 mg L-1 BAP in MS medium was found optimum for embryogenic callus formation. All the calli formed on MS medium supplemented with combinations of plant growth regulators were yellowish-white in colour but with different textures as compact, soft, friable that were embryogenic and mucilaginous that were non-embryogenic.

Studies on preparation of instant ready to serve (RTS) mix from jackfruit (Artocarpus heterophyllus)

Jack fruit is one of the important tropical fruit crop belongs to family Moraceace. To avoid large postharvest losses in Jackfruit, it is necessary to do research on innovative processed products. The experiment of preparation of jackfruit instant RTS mix powder was conducted at Pomology laboratory, Fruit processing unit of Department of Horticulture, College of Agriculture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli. The experiment was laid out in Completely Randomized Design with three treatments T1 (26.17% jackfruit powder + 72.57% sugar + 1.25% citric acid), T2 (31.78% jackfruit powder + 67.05% sugar + 1.17% citric acid) and T3 (37.08% jackfruit powder + 61.84% sugar + 1.08% citric acid) with seven repetitions. Treatment T1 (26.17% jackfruit powder + 72.57% sugar + 1.25% citric acid) was found be best with respect to T.S.S., reducing sugars, titratable acidity, pH and ascorbic acid. Treatment T2 (31.78% jackfruit powder + 67.05% sugar + 1.17% citric acid) found best in sensory evaluation as it recorded maximum score for flavour and overall acceptability after 6 months storage period as well as recorded highest B:C ratio.

Effect of soil and foliar supplementation of nitrogen, boron and salicylic acid on quality of cucumber (Cucumis sativus L.) in alfisols of Konkan

The field experiment was conducted to assess the effect of soil and foliar supplementation of nitrogen, boron and salicylic acid either alone or in combinations applied along with the recommended dose of fertilizers (135:60:30 NPK kg ha-1) on quality and nutrient content of cucumber (Cucumis sativus L.) in acid Alfisols of Konkan at Research and Education Farm, Department of Agricultural Botany, College of Agriculture, Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri (M.S.) during the Summer season of 2018 in Randomized Block Design (RBD) comprising ten treatment combinations replicated thrice. The results revealed that the quality parameters of cucumber grown in acid Alfisols of Konkan viz., TSS, reducing sugar, total sugar and titratable acidity; nitrogen, phosphorus, potassium and boron content in plants significantly increased and recorded the maximum values due to the application of recommended dose of fertilizer (135:60:30 kg ha-1) + foliar spray of nitrogen through urea (1%) + soil application of boron through borax @ 2 kg ha-1 + foliar spray of salicylic acid (0.2%) along with 15 t ha-1 FYM.

Performance Evaluation of Farmers’ Onion Varieties against Purple Blotch Disease

Aims: To evaluate the performance of farmers’ onion varieties against purple blotch disease at different locations and to correlate Percent Disease Index with yield attributing and other important traits.
 Study Design: Randomized Block Design, Field demonstration.
 Place and Duration of Study: National Innovation Foundation- India Gandhinagar Gujarat, Repoli and Palghar research stations of Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli Maharashtra during October 2017 to April 2019.
 Methodology: Two farmers’ onion varieties Sona-40 and Sandip were characterized and tested for their response against purple blotch disease under field condition in comparison with location-specific check varieties. Percent Disease Index of purple blotch was observed, compared and correlated with important traits viz. the plant height, leaves per plant, bulb diameter, maturity period, bulb weight, bulb yield and keeping quality. In Maharashtra areas, the study was conducted under Repoli and Palghar conditions during winter (Rabi) 2017, whereas at Gandhinagar Gujarat, it was undertaken in winter (Rabi) 2017 and 2018.
 Results: The farmers’ onion cultivars Sandip and Sona-40 were found to be tolerant to the purple blotch disease at all the locations. In Maharashtra and Gujarat, the average Percent Disease Index (PDI) in Sona-40 (12.1%, 12.2%) and Sandip (10.75%, 14.64%) was found significantly lower as compared to the checks respectively. The present studies also confirmed that onion bulb’s yield, weight and keeping quality were significantly correlated with the purple blotch disease.
 Conclusion: This study exhibited that the farmers’ onion varieties may perform better against disease infestation such as purple blotch disease. It also confirmed that the response of the onion varieties against purple blotch may vary in different locations. It is shown that the bulb weight, yield and shelf life of bulbs are significantly affected by purple blotch disease.

Effect of plant growth regulators on flowering and flower yield in gaillardia (Gaiilardia pulchella) cv. Local double

The experiment was conducted at Experimental farm of College of Horticulture, Dapoli, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri during Rabi season of the year 2019-20 to assess the effect of plant growth regulators on flowering and flower yield in gaillardia. The experiment was laid out in Randomized Block Design (RBD) with three replications with nine plant growth regulator treatments viz; T1- NAA @ 100 ppm, T2- NAA @ 200 ppm, T3- GA3 @ 100 ppm, T4- GA3 @ 200 ppm, T5- CCC @ 1500 ppm, T6- CCC @ 3000 ppm, T7- PBZ @ 250 ppm, T8- PBZ @ 500 ppm and T9- Control. The early initiation of flowering (62.00 DAT) was observed in GA3 @ 200 ppm treatment. The delayed initiation of flowering (90.33 DAT) and was in PBZ @ 500 ppm. The significantly minimum number of days required for 50% flowering (69.67 days) and longest flowering duration (130.73 days) were also taken in GA3 @ 200 ppm treatment. The lowest number of days required to flower opening from bud stage (4.33 days) and highest flower yield per plant (213.99 gm) were in GA3 @ 100 ppm (T3).

Organic nutrient management in aromatic rice-rice sequence: A critical review

The field experiment was conducted to evaluate the “Effect of soil and foliar supplementation of nitrogen, boron and salicylic acid on growth and yield of cucumber (Cucumis sativus L.) in alfisols of Konkan (M.S.)” at Research and Education Farm, Department of Agricultural Botany, College of Agriculture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri (M.S.) during the Summer season of 2018. The experiment was laid out in Randomized Block Design (RBD) comprising ten treatment combinations replicated thrice, where the effect of soil and foliar supplementation of nitrogen, boron and salicylic acid either alone or in combinations applied along with the recommended dose of fertilizers (135:60:30 NPK kg ha-1) and an absolute control (to judge the fate of native nutrients) were studied. The study further revealed that the treatment receiving the application of recommended dose of fertilizer (135:60:30 kg ha-1) + Foliar spray of nitrogen through urea (1%) + Soil application of boron through borax @ 2 kg ha-1+ Foliar spray of salicylic acid (0.2%) was recorded the highest fruit yield (231.22 q ha-1) and yield attributing characters like number of fruits per vine (7.00) and weight of fruit i.e., 1.98 kg per vine as well as growth parameters viz. vine length (407.00 cm) and number of branches per vine (14.22) of Cucumber in alfisols of Konkan (M.S.).

Effect of precooling and storage temperatures on ripening pattern of mango cv. Alphonso

The study was conducted the effect of different precooling and storage temperatures on quality of mango cv. Alphonso. The experiment was carried out during the season May 2016 at R.F.R.S., Vengurle, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli with five precooling temperatures (P1 – Control, P2 – 21 ± 2 0C, P3 - 18 ± 2 0C, P4 – 15 ± 2 0C and P5 - 12 ± 2 0C.) and four storage temperatures (S1 – Ambient temperature (27-30 0C), S2 - 18 ± 2 0C, S3 – 15 ± 2˚C and S4 - 12 ± 2 0C.). After precooling fruits were stored for 21 days at different storage temperatures and again brought to above precooling temperature by air cooling after 21 days. Then the cooled fruits were kept for ripening for seven days at room temperature. It was found that the peak ripening was noticed after 14 days at ambient temperature (S1) and after 21 days at 18 0C (S2), 15 0C (S3) and 12 0C (S4) temperature. Interaction P5S4 showed maximum green fruits (36%) followed by P5S3 (28%) at 21 days storage. Maximum ripening was noticed in P5S3 (68%) at 28 days storage. The interaction P5S4 was significantly superior to others.

Effect of storage conditions and benzoic acid concentrations on quality and shelf life of aonla juice Cv. NA-10

The present study was conducted to Study the Effect of Storage Conditions and Benzoic Acid Concentrations on Quality and Shelf Life of Aonla Juice Cv. NA-10 under Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Maharashtra with 4 concentrations of benzoic acid (0, 200, 400, 600 ppm) and 2 storage conditions (ambient and cold storage). Among different benzoic acid concentrations tried, treatment T4 (600 ppm) and in case of storage conditions, cold storage (S2) was found to be good. Hence, for better storage of aonla juice upto 6 months, interaction T4S2 (600 ppm benzoic acid and cold storage) was found to be good.

Studies on yield and yield attributing character of amaranth (<em>Amaranthus spp.</em>) genotypes under Konkan agro-climatic conditions

Field experiment was conducted to on “Studies on growth and yield performance of amaranth (Amaranthus spp.) genotypes under Konkan agro-climatic conditions at Department of Horticulture, College of agriculture, Dapoli, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, (M.S.) during the winter season of 2015-16. The experiment was laid out in a Randomized Block Design (R.B.D.) with fourteen treatments as genotypes replicated thrice. The sowing of the seeds of genotypes in the field during November, 2015 with spacing 30 cm between lines to line. Significant differences were observed among the genotypes for yield and yield attributing charactor. The genotypes T12, T13, T7, T6, T5 and T10 had high per plot and per hectare green yield under Konkan agro-climatic conditions.

Bio-efficacy of Emamectin Benzoate 3.5% + lambda cyhalothrin 5% WP against sucking insect pests of chilli during <em>Rabi</em> season 2017-18 and 2018-19

The field experiment was conducted to evaluate the “Effect of soil and foliar supplementation of nitrogen, boron and salicylic acid on growth and yield of cucumber (Cucumis sativus L.) in alfisols of Konkan (M.S.)” at Research and Education Farm, Department of Agricultural Botany, College of Agriculture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri (M.S.) during the Summer season of 2018. The experiment was laid out in Randomized Block Design (RBD) comprising ten treatment combinations replicated thrice, where the effect of soil and foliar supplementation of nitrogen, boron and salicylic acid either alone or in combinations applied along with the recommended dose of fertilizers (135:60:30 NPK kg ha-1) and an absolute control (to judge the fate of native nutrients) were studied. The study further revealed that the treatment receiving the application of recommended dose of fertilizer (135:60:30 kg ha-1) + Foliar spray of nitrogen through urea (1%) + Soil application of boron through borax @ 2 kg ha-1+ Foliar spray of salicylic acid (0.2%) was recorded the highest fruit yield (231.22 q ha-1) and yield attributing characters like number of fruits per vine (7.00) and weight of fruit i.e., 1.98 kg per vine as well as growth parameters viz.vine length (407.00 cm) and number of branches per vine (14.22) of Cucumber in alfisols of Konkan (M.S.).

Effect of integrated nutrient management on physico-chemical properties of lateritic soil of Konkan region of Maharashtra

A field experiment was conducted at the farm of College of Agriculture, Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri, Maharashtra to study the effect of integrated nutrient management (INM) on physico-chemical properties of lateritic soil of Konkan region of Maharashtra. The experiment was laid out in randomized block design (RBD) comprising eleven treatment combinations replicated thrice on bottle gourd (variety Samrat) as a test crop during kharif season of 2017. The physico-chemical properties of soil were studied at initial stage and after harvest of the crop using the standard analytical methods. Results showed that the different INM combinations did not show significant effect on mechanical composition, maximum water holding capacity, bulk density and particle density of the soil after harvest of the bottle gourd. However pH, electric conductivity (EC) and organic carbon (OC) showed significant improvement as a consequence of various treatment combinations. In general physico-chemical properties of experimental plot represented a typical lateritic soil of Konkan Maharashtra. Application of 50 per cent inorganics and 50 per cent of poultry manure registered maximum pH value (5.99) and OC content (14.90 g/kg) in soil after harvest of the crop. The integration of 50 per cent recommended dose of nitrogen (RDN) through inorganics and 50 per cent RDN through vermicompost recorded maximum EC value (0.47 dS/m) of soil after harvest.

Potential Functional Implications of Finger Millet (Eleusine Coracana) in Health and Disease

Finger millet (Eleusine coracana), also known as Nachani, Ragi or Nagli, is one of third most important millet (sorghum and pearl millet) grown in tropical semi-arid regions of the world primarily in India and Africa. The aim of the study is to review the potential health benefits of finger millet. Desk reviews were collected from Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli University, Central Institute of Agricultural Engineering, Bhopal, libraries and other web sources etc. Finger millet is rich in several nutrients as well as non-nutrients such as phenols. It has high energy, has less starch, high fiber (3.6 g/ 100 g, most of which is insoluble), has low glycemic index (55) and is gluten free. The protein content ranges from 5.6 to 12.70 % and it is low in lysine, tryptophan, threonine and the sulfur-containing amino acids. The energy of millet is greater than sorghum and nearly equal to that of brown rice because the lipid content is generally higher (1.3 to 2 %). Total ash content is higher in finger millet than in commonly consumed cereal grains. The ash content has been found to be nearly 1.7 to 4.13 % in finger millet. Calcium and iron content of finger millet ranged from 162 to 487 mg % and 3.61 mg/100 g to 5.42 mg % respectively. Calcium deficiency leading to bone and teeth disorder, iron deficiency leading to anemia can be overcome by introducing finger millet in our daily diet. They are also recognized for their health beneficial effects, such as anti-diabetic, anti-tumerogenic, atherosclerogenic effects, antioxidant and antimicrobial properties.

Studies on effect of types of bag at egg stage on mango fruit (cv. ALPHONSO)

Bagging of mango fruits prior to harvest is the best alternative to avoid adverse effect of recent changes in climate on fruit by causing physical damage. Bagging mango fruit was undertaken at Department of Horticulture, Dr. Balasaheb Sawant Konkan KrishiVidyapeeth, Dapoli in summer, 2013 from March to June. The results indicated that various chemical parameters were affected significantly due to bagging. Treatment T 1 showed best performance for fruit retention (90.67 %), length (9.44 cm), weight (298.67 g) and pulp weight (223.88 g) of fruit. T 4 contributed best performance for days required for harvesting (55 DAB). Bagging had significant effect on mealy bug infestation. Thus, it is concluded that different types of bags influenced growth and development of mango fruit.