Roem & Schult. plant ethanolic extract were subjected to Antioxidant, cytotoxic and Ipomoea staphylina nutritive experiment by using standard method. Ethanolic extract of was Materials and Methods: I. staphylina investigated for antioxidant experiment by using DPPH, ABTS, superoxide radical scavenging, Hydroxy radical scavenging, Metal chelating assays. Cytotoxic experiment is done by trypan blue exclusion test using DLA and EAC cancer cells. Nutritive value is performed by double acid digestion followed by Atomic absorption spectroscopy. Results: Antioxidant experiment revealed that plant ethanolic extract has excellent antioxidant activity in I. staphylina all tested experiments but comparably less with the standards used. plant ethanolic extract has negligible I. staphylina toxicity compared to the standard curcumin used. From nutritive value experiment it is revealed that plant I. staphylina has high iron content with rich macro and micronutrients. plant could be exploited as a Conclusion: I. staphylina valuable source of antioxidant agent enriching with nutrients.

The two species of Catharanthus, C. roseus and C. alba namely 'rosea' (Pinkflower) and' alba '(White flower) respectively are used in ayurvedic medicines for number of ailments. The leaves and flowers of both the species of Catharanthus are rich source of alkaloids that have antitumor and anticancer properties. The major compounds like phenols and flavonoids along with moisture, ash, fat, crude fibers and chlorophyll contents of flowers and leaves of C. alba and C. roseus were estimated. The results of above mentioned studies revealed that flowers of both the species contain more number of phenolic and flavonoids contents than leaves. Due to high number of phenolic and flavonoids contents in C. alba (531.26 and 20.05 mg/100g, respectively) and C. roseus (450.20 and 19.00mg/100g, respectively), it shows strong antioxidant activity which makes their potential use as a natural source of antioxidants and can be used in medicinal as well as in food preservation by inhibiting lipid per oxidation. All the parameters studied under the course of experiments for two species of Catharanthus are found to be statistically significant (p0.001).

Paddy (rice) is considered as the most important staple food-cereal crop in south-east Asian countries. It is the majorly consumed food in India. Transplanting of paddy is a highly labor-intensive operation and is still done manually. It takes around 182 to 250-man hours a day to manually transplant rice. Also, many a time due to shortage of labour, transplanting is delayed which causes a progressive decrease in yield. The scarcity of labour during the peak season of transplanting creates a problem to complete the transplanting operation in time. Manually operated paddy transplanter can be useful for small and marginal landholdings. Here we intended to develop equipment that should be of low cost, fabricated locally, versatile in utility, reducing drudgery by making transplanting possible without bending and useful for small farmers. The developed two row rice transplanter prototype can transplant 20 to 25-day old seedlings up to 5 cm depth with adjustable row spacing of about 15-20 cm. It requires two operators, one for filling the tray while walking behind and another for pulling the transplanter while walking in front of the machine. The actual filed capacity of 0.2 ha per day (eight hour working day) was achieved with the machine by considering a 5%- and 3%- time loss due to turning and filling tray respectively.