Chilli (Capsicum annuum L.) is an important crop of India, cultivated in almost all states of the country. Pungency of chilli is due to a crystalline acrid volatile alkaloid capsaicin (C 18 H 27 NO 3) present in the placenta of fruit which has diverse prophylactic and therapeutic uses in Allopathic and Ayurvedic medicine and colour is due to pigment capsanthin (C 40 H 56 O 3) present in the fruit. The total flavour extract of dried and ground chilli is concentration in homogenous free flowing product as 'chilli-oleoresin', which has got high export potential. Though, India possesses many chilli varieties with different quality attributes, relatively little information is available on the biochemical constituents. Therefore, present study was aimed to generate on the important biochemical constituents of different chilli genotypes which were collected from different research institutes. MATERIALS AND METHODS Twenty-four chilli genotypes collected from different parts of Karnataka and Andhra Pradesh were evaluated in Randomized Block Design with three replications during 2011-12. Each genotype was raised at a spacing 45 cm x 60 cm. The crop received timely management as per the package of practices recommendation of University of Agricultural Sciences 1. The capsaicin, capsanthin and oleoresin content in red fruits were estimated from amongst the fruits of five randomly selected healthy plants in each plot as per the standard methods respectively 2, 3, 4 .

A field experiment was conducted at fruit orchard, Department of Horticulture, CCS HAU, Hisar to standardize the optimum level of water and NPK fertilizers through drip system for the sustained production of Kinnow mandarin under semi-arid condition of Haryana. The experiment was designed in factorial RBD with three replications and consisted of twelve treatment combinations, involving of three drip irrigation regimes (1.0, 0.8 and 0.6 volume of water) and four RDF levels of NPK (120%, 100%, 80% and 60% RDF). Significantly highest gain in plant growth parameters viz., plant height (48.8 cm), stem girth (6.24 cm) and plant spread (40.1 cm) was observed with the combined application of drip irrigation at 1.0 volume of water and 120% RDF through fertigation, whereas, highest number of fruits (515.9) and yield per hectare (258.7 quintals) was registered with the interaction effect of 0.8 volume of water and 80% RDF through drip irrigation.