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Papaya is one of the most important cash crops in the tropics and subtropics. However, the production of this economically important crop is limited by the destructive disease caused by Papaya ringspot virus. The affected plant shows stunted growth, small fruits with ringspot blemishes and drastically reduced fruit yield and TSS content of fruits. Hence, to enhance fruit quality a study was carried out at the Department of Horticulture, University of Agricultural Sciences, GKVK, Bangalore on influence of greenhouse cultivation on quality of ‘Red Lady’ papaya. Seedlings of ‘Red Lady’ papaya grown in insect proof nethouse and were transplanted (50 days) in two growing conditions viz., open field and greenhouse. Observations on yield and quality were observed by adopting standard procedures. Cultivation of papaya under greenhouse showed early flower initiation and high fruit yield compared to open field. At open field condition PRSV incidence appeared at 163.23 days with 100% incidence whereas greenhouse was disease free. Significant differences were observed between the two treatments on fruit physico-chemical characters. The fruits harvested from greenhouse were superior in all aspects of quality. Marketable parameters were also superior.

A real-time control software is developed using analog computer like modelling approach. This software has graphical user interface to help in modelling and in measuring system performance. This is used for simulation study and control of external systems using linear/nonlinear building blocks provided in the software. The software has been tested in an undergraduate control laboratory and was found to be versatile and efficacious.

A real-time control software is developed using analog computer like modelling approach. This software has graphical user interface to help in modelling and in measuring system performance. This is used for simulation study and control of external systems using linear/nonlinear building blocks provided in the software. The software has been tested in an undergraduate control laboratory and was found to be versatile and efficacious.