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Ingle Y.V.,Regional Research Center | Wadaskar R.M.,Dr. Panjabrao Deshmukh Agricultural University | Gathe A.G.,Regional Research Center
Indian Journal of Ecology | Year: 2015

In vitro investigations were earned out to assess tlie susceptibility of different larval instars of Helicoverpa annigera (Hub.) against entomogenous fungus, Nomuraea rileyi (Farlow) Samson by different bio-assay methods viz. leaf dip, larval treatment by topical application and leaf + larval treatment (combination). Bioassays of different instars of H. armigera with critical concentrations of N. rileyi revealed that mortality.in 2nd, 3rd and 4th instar ranged from 46.67% to 83.33%, 43.33% to 76.67% and 30.0% to 70.00 % in leaf dip, larval and leaf + larval bioassay, respectively The dose mortality response (LC50, value) of 3.96 × 105 4.29 × 104 and 9.96 × 103 spores/ml for 2nd' instar larvae, 1.67 × 106,4.56 × 105 and 6.11 × 104 spores/ml for 3rd instar larvae, whereas, LC50 Values of 2.79 × 107 spores/ml, 1.99 × 108 spores/ml and 2.94 × 105 spores/ml for 4th instar H. armigera larvae by leaf dip, larval bioassay and leaf dip + larval bioassays were estimated, respectively. The corresponding LT50, value for various concentrations under evaluation (109-105 spores/ml) was in the range of 119.64 to 206.09 hr, 105.16 to 189.45 hr and 95.53 to 164.43 hr for respective bioassay methods. The LC50, and LT50, data revealed reducing susceptibility trend for higher larval instars. Source

Bhute N.K.,Dr. Panjabrao Deshmukh Agricultural University
Pestology | Year: 2012

Mass multiplication of Zygogrmma bicolorta P. was initiated at Biocontrol Laboratory, Anand Niketan College of Agriculture, Anandwan, Warora, District Chandrapur, Maharashtra, in June 2011 for the control of Parthenium hysterophorous L. weed. Culture of Zygogramma was brought from uncultivated land of Umarkhed District Yavatmal (M.S.) where these beetles were well established. Zygogramma culture was released in the Experimental plot, field adjoining to the biological control laboratory, field of A. N. College of Agriculture Warora and also in Anandwan premises. Mass multiplication of Zygogrmma also carried out in plastic containers in the Laboratory. Defoliation of Parthenium by both the grubs and adult beetles was found to cause reduction in flower production and also stunting of the growth of weed. The beetles completely defoliated the Parthenium plants and the plants were completely dried. On the experimental plots it was observed that after complete defoliation and eradication of Parthenium dispersal of Zygogramma beetles occurred and also some beetles recorded during feeding on Gokhru (cocklebur) Xanthium strumarium L. weed which belongs to the the same family Asteraceae as that of Parthenium. From this it was concluded that after complete defoliation or eradication of Parthenium weed Zygogramma may feed on the Xanthium for survival or existence and in future Xanthium may become as a new host of Zygogramma in the absence of Parthenium. Source

Pisalkar P.S.,Dr. Panjabrao Deshmukh Agricultural University | Jain N.K.,Maharana Pratap University of Agriculture and Technology | Jain S.K.,Maharana Pratap University of Agriculture and Technology
Journal of Food Science and Technology | Year: 2011

Aloe vera (Aloe barbadensis Miller) cubes of12.5×12.5×12.5 mm thick were osmosed for 4 h in sugarsyrup of 30, 40 and 50°Brix concentration and temperaturesof 30 and 50°C at constant syrup to fruit ratio of 5:1.Osmosed and unosmosed aloe vera samples were hot airdried at 50, 60, 70 and 80°C with constant air velocity of1.5 m/s. The water loss, solid gain and convective dryingbehaviour were recorded during experiments. It wasobserved that water loss and solid gain ranged from 39.2to 71.3 and 2.7 to 6.3%, respectively during osmo-drying.The moisture diffusivity varied from 2.9 to 8.0×10-9 m2/sand 2.7 to 4.6×10-9 m2/s during air drying of osmosed andunosmosed aloe vera samples, respectively. Drying airtemperature and osmosis as pre-treatment affected the waterloss, solid gain, diffusivity at -p≤0.01. © Association of Food Scientists & Technologists (India) 2010. Source

Patil A.S.,Sant Gadge Baba Amravati University | Paikrao H.M.,Sant Gadge Baba Amravati University | Patil S.R,Dr. Panjabrao Deshmukh Agricultural University
International Journal of Pharma and Bio Sciences | Year: 2013

Medicinal plants and their extracts play a vital role within the medicine system to preserve our health. India being medico diverse country in which the traditional systems of Ayurveda, Homeopathy and Unani recognize by the importance for medicinal plant extract variable in origins. Out of 2000 medicinal plants, which are recognized and are used throughout the system, Passiflora sp is one of them. Many species of Passiflora have been used in therapeutic practice, but rare as Passiflora foetida has been described as a passion flower and has been used in treatment of some disease like as anxiety, insomnia, convulsion, sexual dysfunction, cough and cancer. The purpose of this article is to bring together scattered over, literature in respect to minor species Passiflora foetida L. a passion fruit and also detail exploration of morphology and photo-pharmacological properties as a sincere attempt to provide a direction for research. Source

Gade R.M.,Dr. Panjabrao Deshmukh Agricultural University | Armarkar S.V.,Dr. Panjabrao Deshmukh Agricultural University
Archives of Phytopathology and Plant Protection | Year: 2011

Biochemical analysis was carried out for 10 isolates of Pseudomonas fluorescens. All isolates were found positive for siderophore and indole acetic acid production (except Pf IX) and phosphate solubilisation (except Pf VII). Biochemically efficient strains (Pf I, Pf IV, Pf VII and Pf IX) were selected for management of root rot, collar rot and damping off caused by Phytophthora parasitica, Pythium sp. and Fusarium solani. The activity of defence-related enzymes like esterase, peroxidase and polyphenol oxidase was also detected by polyacrylamide gel electrophoresis (PAGE). Consistent appearance of esterase isozyme bands was visualised, in the range of 0.193-0.349. The highest Rm value 0.349 was observed on Pf IV. Whereas, for peroxidase, Rm value ranged between 0.302 and 0.373 and for polyphenol oxidase, it was in the range of 0.211-0.800. P. fluorescens Pf IV was found significantly effective to arrest the per cent mycelial growth of P. parasitica (55.20%), Pythium sp. (65.33%) and F. solani (64.67%). Among bioagents, seed treatment and soil drenching with Pf IV at 15 and 30 days after sowing were found effective to reduce per cent disease incidence (30.55%) at 120 days after emergence. Seed treatment with copper oxychloride at 3g/kg seed and metalaxyl at 2 g/kg seed were also found effective. © 2011 Taylor & Francis. Source

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