Application o plant growth hormone from Bacillus vallismortis to improve the growth and production of chili plants

Abstract

Decreasing in the number of chili production can be overcome by making a technical improvements to cultivation. These improvements can be done using exogenous growth regulator from Bacillus vallismortis to accelerate plant growth and development. The purpose of this study to determine the potential growth regulator (IAA and GA) from B. vallismortis and obtained appropriate concentration to increase the growth and production of cayenne pepper plants. This research was conducted at the Microbiology Laboratory and Greenhouse of the Indonesian Center of Agricultural Biotechnology and Genetic Resources Research and Development (ICABIOGRAD) Bogor. The experimental design of this research is Complete Random Design (CRD). The treatment was given water control, synthetic control, and growth regulator (IAA and GA) from B. vallismortis with concentrations of 1, 3, 5 and 7 ml/L. The application was done by sprayed into the whole body of the plant in the afternoon. The results showed the best concentration in increasing plant height, number of fruit, fruit weight, length and diameter of fruit, shooth and root dry weight compared to controls at the age of 70 days after planting (DAP) was a concentration of 1 mL / L, with the values of 99.88 ± 10.96 cm, 55.34 ± 11.46, 49.11 ± 7.58 g, 2.92 ± 0.15 cm and 0.36 ± 0.03 cm, 22.71 ± 1.57 g, and 3.50 ± 0.31 g, respectively. The growth hormone (IAA and GA) from B. vallismortis has the similar potential to increase growth and production of cayenne plants with the synthetic control.