Penampilan agronomi dan seleksi jagung hibrida pada lahan sawah tadah hujan dengan sistem tanam tanpa olah tanah

Corn is a strategic national priority commodity with a very high demand for the food, feed, and seed industry. Corn production can be increased by using hybrid maize and expanding the planted area by utilizing rainfed rice fields. The application of zero tillage system (TOT) on maize in rainfed land is very effective to be applied to speed up planting time, minimize production costs and increase maize cropping index to increase maize production. The purpose of this study was to observe the agronomic growth and to select potential hybrid maize to be developed in rainfed fields with zero tillage cropping system. The research was carried out on uncultivated rainfed fields using 5 maize hybrids and 3 comparison varieties with a randomized block design and, 4 replications. In general, the agronomic performance of the test hybrid corn was better than the comparison variety. There were two hybrids that showed higher dry seed yields than the comparison varieties, namely HIB1 (11.77 t ha-1) and HIB3 (11.61 t ha-1). These two hybrids also had higher agronomic characteristics than the comparison varieties on the characteristics of ear diameter, the number of rows seed per ear, and number of seeds per row. Hybrid corn HIB1 and HIB3 can be an option in the development of maize in rainfed rice fields with the TOT system.