Annamma, GeorgeAnn, NapoleonKAU2019-05-282019-05-282001171815http://krishikosh.egranth.ac.in/handle/1/5810104941PGA field experiment was conducted at College of Agriculture, Vellayani to study the influence of growth regulator and vegetable picking on seed yield, quality and vigour and also to standardise the stage of physiological maturity and seed position in chilli. Plant height was increased with regular vegetable harvests. Other growth characters like number of branches per plant, leaf area index, leaf area duration and date of 50 per cent flowering were not affected by vegetable harvests. The bearing capacity of the plant is improved by frequent picking of green fruits, but the mature fruit yield was not affected. Highest number of green fruits per plant, total number of fruits harvested per plant and highest fruit to seed ratio was recorded in treatment h2 (first two seed harvest and rest for vegetable harvests). Zero vegetable harvest recorded maximum weight of seeds per fruit, 1000 seed weight, seed yield per ha and B:C ratio. Seed quality is not influenced by number of harvests. To obtain maximum returns, raising crop for seed purpose alone can assure good quantity and quality seeds. Growth regulator caused reduction m vine length but increased the number of branches and length of fruits. NAA at 50 ppm produced significant increase in LAI, weight of green fruits, weight and number of seeds per fruit&seed yield per hectare. Growth regulator at 30 ppm increased the total number of fruit harvested and girth of fruit. Seed quality was not affected by the application of growth regulator except 1000 seed weight. Highest net return and B:C ratio was also obtained at 50 ppm NAA. Seed harvesting stages significantly influenced the seed yield and quality. Seed quality parameters like maximum 1000 seed weight, speed of germination and seed viability were influenced by harvesting the fruit at red ripe stage and was on par with colour breaker stage. Seedling character like VI also recorded superior values. Germination percentage and root length was highest in colour breaker stage and on par with red ripe stage. Based on position of seeds in fruit, seeds located in. the bottom portion of fruits obtained higher values for number and weight of seeds per fruit, fruit to seed ratio, seed yield per hectare, 1000 seed weight and speed of germination. So to obtain good quality seeds harvesting the fruit at red ripe stage and extracting the seeds from bottom region provide maximum viable seeds.ennullThesis