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Field experiments were conducted to evaluate the different system of irrigation, fertilization and biostimulant spray and its effect on growth, yield, physiological and nutritional parameters in Jasminum sambac cv. Ramanathapuram Gundumalli at Tamil Nadu Agricultural University, India during the year fromm 2009 to 2011. Observations were recorded on the growth, yield, physiological, nutritional parameters and soil enzyme activity.Drip fertigation with 100 per cent recommended dose of fertilizer (60:120:120g NPK/ha/year)in combination with foliar spray of humic acid 0.4 per cent and 3 per cent...

Induced mutagenesis was attempted in two paprika cultivars viz., KtPl-19 and Bydagi Kaddi at Tamil Nadu Agricultural University, India with gamma rays, EMS and their combinations were attempted. The mutagens employed for sensitivity studies were gamma rays (5 kR to 40kR) and EMS (0.05% to 0.5%). The LD50 values for the mutagens were initially worked by probit analysis. In M1 generation, a general decrease in mean values for most of the traits was noticed at higher doses of mutagens in both the cultivars with a few exceptions. In M2 generation, higher frequency of chlorophyll mutants was...