Ashwin Trivedi

A field experiment was carried out at the Regional Research Station, Anand Agricultural University, Anand to access the effect of various spacing and genotypes on yield attributes and yields of french bean (Phaseolus vulgaris L.) during Rabi seasons of 2019-20 and 2020-21. The experiment consists of twenty-two treatment combinations comprised of two levels of spacing [S1: 30 x 10 cm and S2: 45 x 10 cm] and eleven levels of genotypes [G1: SKAUSJ-WB 185, S2: Tripura Rajma-1, G3: Phule Rajma, G4: Phule Suyash, G5: RKR 1011-1, G6: RKR 1033, G7: GR-1, G8: Varun, G9: HPR-35, G10: IPR-98- 3-1 and G11: Swarna Safal (ICAR Ranchi)]. The results revealed that 45 x 10 cm spacing recorded significantly higher yield attributes and yields of french bean. While among the various genotypes tested, the significantly higher yield attributes and yields were obtained in Swarna Safal genotype of french bean and it also remained at par with Phule Rajma and GR-1 genotypes.

A field experiment was conducted at the Regional Research Station, Anand Agricultural University, Anand to evaluate the effect of various spacing and genotypes on physiological growth indices of french bean (Phaseolus vulgaris L.) during Rabi seasons of 2019-20 and 2020-21. The experiment consisted of twenty-two treatment combinations comprised of two levels of spacing [S1: 30 x 10 cm and S2: 45 x 10 cm] and eleven levels of genotypes [G1: SKAUSJ-WB 185, S2: Tripura Rajma-1, G3: Phule Rajma, G4: Phule Suyash, G5: RKR 1011-1, G6: RKR 1033, G7: GR-1, G8: Varun, G9: HPR-35, G10: IPR-98-3-1 and G11: Swarna Safal (ICAR Ranchi)]. The results revealed that 45 x 10 cm spacing recorded significantly higher physiological growth indices in french bean. While among the various genotypes tested, the significantly higher physiological growth indices were obtained in Swarna Safal genotype of french bean and it also remained at par with Phule Rajma and GR-1 genotypes at 30 DAS, 60 DAS and at harvest.

Stored grain infestation is a very serious problem as various life stages of insects cause economic damage and deteriorates the quality of food grains and food products. There are number of stored grain insect pests that infest food grains in farmer stores and public warehouses and massively surge due to un-controlled environmental conditions and poor ware housing technology used. However, for suppression of multiplying insect population highly specific and more appropriate modern methods are to be used. Few important methods such as microwave and ionizing irradiation, pheromone baited traps, IGRs and use of entomopathogens are proved highly effective against stored grain insects. Botanicals have been used since time immemorial for protection of stored products against common pests. They acts as repellents, antifeedants, toxicants and behave as natural grain protectants by behaving as chemosterilants/reproduction inhibitors or insect growth and development inhibitors. Literature sho...

A field experiment was carried out at the research farm of National Research Centre for Onion and Garlic, Manjari, Pune (Maharashtra), India during kharif season of 2004 and 2005 to find out the effect of application of zinc and iron and their different modes of applications on growth, yield, and quality of onion. There were 27 treatment combinations with Zn and Fe were applied either in the soil or as foliar spray with cow dung slurry/FYM/gibbrelic acid/amino acids/2,4- D to onion. Application of Zn significantly increased the bulb weight (73.9 g), bulb yield (45 t/ha) when applied with 2,4-D (3 ppm) as foliar spray. Zinc application significantly influenced the bulb quality and recorded the highest ‘A’ grade bulbs and the lowest poor quality ‘C’ grade bulbs when applied with 2,4-D (81.9%) as foliar spray. The maximum medium ‘B’ grade bulbs were obtained with the application of Fe with cow dung slurry (11.4%). Bangladesh J. Agril. Res. 38(1): 41-48, March 2013 DOI: http://dx.doi.or...

The field experiments were carried out at National Research Centre for Onion and Garlic, Rajgurunagar, Pune during late kharif 2002 and 2003 to evaluate some onion germplasm lines against the commercial varieties/ hybrids for improvement in bulb yield. So improvement in bulb yield, selection pressure can be exercised for the genotypes possessing maximum bulb weight having maximum number of ‘A’ grade bulbs with physiological loss in weight which were contributing towards total losses in onion during storage.

In conventional methodology of female seed production, pistillate line is maintained by allowing the 20- 25% population of monoecious plants of female as the pollen source and harvesting the seeds only for the pistillate plants for seed purpose. In this process, the progeny of the seed thus produced exhibited a large proportion of monecious plants in the seed production plots. Hence, a modified method of seed production for production of high genetic purity with very high proportion of pistillate plants is advantageous.

To cite this article: Tushar Dhanani, Raghuraj Singh, Nagaraja Reddy, A. Trivedi & Satyanshu Kumar (2016): Comparison on extraction yield of sennoside A and sennoside B from senna (Cassia angustifolia) using conventional and non conventional extraction techniques and their quantification using a validated HPLC-PDA detection method, Natural Product Research,

Essential oils were extracted from five aromatic plant species namely Cinnamon essential oil (Cinnamomum zeylanicum, C. verum), Clove essential oil (Syzygium aromaticum), Rosemary essential oil (Rosmarinus officinalis), Bergamot essential oil (Citrus Bergamia) and Japanese Mint essential oil (Mentha arvensis) by steam distillation. Bioassays, i.e. fumigation with pure essential oils were carried out on adults. Observations were taken after 24 h, 48h, 72 h and 96 h respectively. The LC50 values obtained for 24 h, 48 h, 72 h and 96 h was 0.712(0.597-0.859)%, 0.345(.069-0.474)%, 0.479(0.332-0.602)% and 0.397(0.234-0.511)% respectively. The LC50 values obtained for 24 h, 48 h and 72 h for rosemary essential oil are 3.282, 4.261 and 1.509 respectively while the LC50 values obtained for clove oil for 24 h, 48 h and 72 h were 0.334, 0.341 and 0.059 respectively. The present study demonstrated fumigant toxicity against the stored grain pest Callosobruchus chinensis. The essential oil showed potential to be developed as possible natural fumigants or repellents for control of the pulse beetle.

A field experiment was carried out at the research farm of National Research Centre for Onion and Garlic, Manjari, Pune (Maharashtra), India during kharif season of 2004 and 2005 to find out the effect of application of zinc and iron and their different modes of applications on growth, yield, and quality of onion. There were 27 treatment combinations with Zn and Fe were applied either in the soil or as foliar spray with cow dung slurry/FYM/gibbrelic acid/amino acids/2,4-D to onion. Application of Zn significantly increased the bulb weight (73.9 g), bulb yield (45 t/ha) when applied with 2,4-D (3 ppm) as foliar spray. Zinc application significantly influenced the bulb quality and recorded the highest 'A' grade bulbs and the lowest poor quality 'C' grade bulbs when applied with 2,4-D (81.9%) as foliar spray. The maximum medium 'B' grade bulbs were obtained with the application of Fe with cow dung slurry (11.4%).

An experiment entitled " Effect of GA3 and cow urine with different media on seed germination and growth of papaya seedlings (Carica papaya L.) cv. Madhubindu under net house condition " was carried out at Horticultural Research Farm, Anand Agricultural University, Anand during June – July, 2016. The treatments comprised combination of soil, vermicompost and cocopeat with varying levels of GA3 and cow urine. Altogether, 18 treatments were applied in a factorial CRD with three repetitions. The seeds were sown in plug tray which is filled with respective media and treated with GA3 and cow urine. The results showed that the application of treatment G3M1 [GA3 @150 mg/l dipping for 12 hours and soil + cocopeat (1:1)] was found better for early germination as well as higher germination percentage and length of root. While, G6M1 [cow urine 10% dipping for 18 hours and soil + cocopeat (1:1)] had enhanced plant growth by increasing seedling height, stem diameter, fresh weight of shoot and leaf area.

The field experiments were carried out at National Research Centre for Onion and Garlic, Rajgurunagar, Pune during late kharif 2002 and 2003 to evaluate some onion germplasm lines against the commercial varieties/ hybrids for improvement in bulb yield. So improvement in bulb yield, selection pressure can be exercised for the genotypes possessing maximum bulb weight having maximum number of 'A' grade bulbs with physiological loss in weight which were contributing towards total losses in onion during storage.