The experiment was laid out in RBD with four replications. The treatments comprised of growth regulator GA3 (25, 50, 75 ppm) and NAA (25, 50, 75 ppm). Two foliar spray at 50 ppm produced significantly more plant height and plant spread at 45 DAT and at harvest, leaf area per plant at harvest no. of flowers per plant, fruit set percentage, no. of fruit per plant, fruit weight, yield, TSS and ascorbic acid. Application of GA3 at 75 ppm as foliar spray recorded significantly lower fruit drop percentage as compared to rest of the plant growth regulator treatments. Significantly higher total soluble solids, ascorbic acid content and TSS/acid ratio and lower acidity percentage were observed with application of GA3 at 50 ppm in comparison to 25 and 75 ppm GA3 and NAA.

The immature leaves and pods of senna have been found to possess higher sennosides than the natural ones. Further, the sennoside content in the crop was not influenced by use application of different levels of N and P2O5.

Inspite of soil mapping being carried out by using satellite data for over last two decades several problems are encountered in delineation of sandy, saline, gypsiferous and gravelly soils because of similarity in their image characteristics. Intensive ground truth is required for mapping these soils. Therefore, present study has been carried out to determine the spectral reflectance characteristics of sandy soils with varying intensity of wind erosion and for associated gypsiferous soils. The study has been carried out in Bhikampur-Nachna area of Jaisalmer district where the area is highly dune complex with sandy soils and gypsum bearing inter dunes. The Hindivac Spectro Radiometer 101 was used for recording the spectral reflectance of soil in the field. The spectral reflectance characteristics of sandy soils showed range between 17.5 to 25 % with a mean value of 21.4% at wave length 450 nm. Between wave length range of 800 to l000 nm the reflectance was not in increasing trend.. Waterlogged soils have low reflectance than the normal sandy soils.

Treatment of chilli seeds with raw cow milk (RCM) and T.richoderma viride and T. viride in nursery soil followed by root — dipping of nursery-raised saplings in RCM (15%) for 10 minutes before transplantation and RCM spray after twenty days of transplanting was superior to farmer’s practices i.e. inorganic chemical sprays without seed treatment (FP) ensuring up to 65.4% (mean 50.4%) leaf curl disease control and increase in yield by 24.4% with 29.1% reduction in cost of cultivation. It was inferred that the improved technology contributed to 22% while the complementary inputs were about 3.1%.

The present study was carried out to analyze the growth and instability in area, production and productivity of chilli and acreage response to chilli crop in arid zone of Rajasthan. The study was confined to five districts of arid zone having more than 500 ha area under chilli cultivation during last decade. The data were collected for the period 1960-2007 and analyzed by using exponential production function and instability index. The results revealed that area and production have increased in the arid zone of Rajasthan but with high instability. The productivity registered lower but relatively more stable growth compared to area and production which indicates that chilli production can be increased by stabilizing and sustained increase in area under chilli cultivation by efficient use of irrigation water. The farmers of the arid zone of Rajasthan tend to divert more area towards cash crop if current irrigation facilities are adequate.