Performance of growth and productivity of several maize varieties in the dry land ecosystem

Indonesia National Research and Innovation Agency, Jakarta, Indonesia

^* Corresponding author: mora001@brin.go.id

Abstract

This research activity aims to determine the growth and productivity performance of several maize varieties in the dry land of the Karo district. The study was conducted in Kutabangun Village, Tiga binanga district, Karo Regency from February to June 2019. This study used a Randomized Block Design with the treatment of 4 varieties of corn with the same components of the corn plant technology package as the integrated corn crop management approach. The varieties tested were: 1.) Pioneer 32, 2.) NK 22, 3.) BIMA 20 and 4.) NASA 29 and as replicates. 5 (five) farmers. Each farmer planted 4 varieties of corn on an area of 1 ha, so the land required for this test was 5 ha. The results of observations of dry-shelled seed weight (t/ha) showed that there was a significant difference between the four varieties planted where the dry-shelled seed weight (t/ha) ranged from 7.68 to 8.53 t/ha. The highest dry seed weight (t/ha) was produced by the Pioneer 32 variety, which was 8.53 t/ha, followed by the NK 22 (7.95 t/ha), NASA 29 (7.82 t/ha), and BIMA 20 ( 7.68 t/ha). Net income per hectare/season produced by the Pioneer 32 varieties (Rp. 19.490.000), Nasa 29 (Rp. 17.170.000), BIMA 20 (Rp. 16.65 million), and the NK 22 varieties (Rp. 16.090.000) and The B/C ratio per hectare of each variety is the Pioneer 32 (1.33%), Nasa 29 (1.17%), BIMA 20 (1.13%) and the NK variety 22 (1.12%).