Present study was conducted to evaluate the growth performance of ten (10) different potato varieties viz.

This study was conducted to evaluate the effect of different water depths on the growth and yield of rice crop. Experiment was carried out in containers having an area of 0.64 m 2 and the volume of 0.57 m 3 at laboratory. Four water depths of 5, 10, 15 and 20 cm were taken in account; each water depth was replicated three times. This study was conducted in controlled condition to avoid the impact of rain. Result indicated that 5 cm is optimum water depth for vegetative and mid stage (transplanting to mid drainage) of the rice crop growth, while 10 cm water depth is appropriate for mid drainage till late stage (mid drainage to harvesting) of the rice crop and the same (10 cm) is found suitable for maximum yield.

A field experiment was conducted at Research Farm of Agricultural Research Station, Ummedganj, Kota (Agriculture University, Kota), Rajasthan, India during kharif 2019 to find out the most effective herbicide combination for limiting the menace of weeds in maize. Results showed that density of monocot weeds were observed more than dicot weeds during the experimentation. The prominent weeds were Echinochloa colona, Cyperus rotundus, Digera arvensis, Amaranthus viridis, Acalypha indica and Trianthema portulacastrum etc. caused about 58.3% reduction in grain yield as over two hand weeding at 20 and 40 DAS. In general, grassy weeds were better controlled by herbicides than broad leaves weeds. Among herbicides, maximum weed control efficiency (72.18%) was achieved with application of atrazine 500 g a.i. ha-1 (PE) followed by topramezone 25.2 g a.i. ha-1 at 20-25 DAS (72.18%) which is very close to two hand weeding at 20 and 40 DAS. Furthermore, this treatment also produced higher grain (3496 kg ha-1) and stover yield (6460 kg ha-1) which was at par with atrazine 500 g a.i. ha-1 (PE) followed by tembotrione 120.75 g a.i. ha-1 (20-25 DAS) and atrazine 500 g a.i. ha-1 (PE)+hand weeding 30 DAS with in-situ weeds mulching. Thus, pre-emergence application of atrazine 500 g a.i. ha-1 (PE) followed by topramezone 25.2 g a.i. ha-1 at 20-25 DAS is recommended for better weed control and yield of maize.

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Post-harvest handling of banana is a crucial activity to get good quality fruit  to the consumers. A post-harvest study on ripening of banana was carried out  at Regional Agriculture Research Station, Khajura during winter season of  2005 to find out the effect of different materials in ripening of banana and  study about shelf-life period. Dipping fruits in Kripone 2.56 ml per liter of  water (ethephone 1000 ppm) for five minutes was found effective for banana  ripening. Those fruits treated with ethephone 1000 ppm started to soften in  three days and became ready to consume in five days with shelf-life of eight  days. Fruits treated with 'Asuro' (Adhatoda vesica) started to become soft in  five days where as fruits treated with 'Koiralo' (Bahunia veriagata) became  soft in four days. By using these indigenous plant materials, we can prolong  shelf-life of fruit by 2-3 days more than the Kripone-treated fruits. Use of  ripe banana fruit also found effective to hasten ripening the banana with  excellent taste. However, the shelf-life was relatively short (8 days). It is  difficult to ripen the banana in winter without using any ripening materials.  In untreated control, only 33% fruits started to become soft after 7-9 days of  storage and were ready to consume in nine days. Rest 66% fruits were  remain as such up to 11 days then after fruit started uneven softening ie some  portion became soft and other portion remained hard. After 14 days fruits  became black without softening and got spoiled. Overall percent weight loss  was found 6.0 to 10.7 from initial to end of shelf-life period.Nepal Agric. Res. J. Vol. 9, 2009, pp. 113-117DOI: http://dx.doi.org/10.3126/narj.v9i0.11649