Optimization of hybrid corn seed production in pollination systems at various parent seed planting ratios

Abstract

The research was carried out on land belonging to the North Sulawesi Agricultural Technology Research Center located at the Agricultural Technology Research and Assessment Installation (IP2TP) Address Talawaan Bantik Village, Wori District, North Minahasa Regency in February 2021. This study aims to analyze the different effects of spray pollination treatment on the ratio female and male parents to increase hybrid corn seed production and to obtain the best pollination vs ratio between male and female parents in increasing hybrid seed productivity. This study uses a 2 x 4 Factorial Experimental Design where factor S consists of 2 levels and factor R consists of 4 levels in the RAK pattern, namely: Factor S = Pollination with 2 levels (S1 = Spray Pollination, S2 = Natural Pollination) and Factor R = Male to Female Planting Ratio (R1 = 4 female plants vs. 1 male plant, R2 = 5 female plants vs. 1 male plant, R3 = 6 female plants vs. 1 male plant, R4 = full female plants: solation of male plants) for each treatment repeated 3 times. Based on the analysis of interaction variance, spray pollination treatment at a planting ratio of 6: 1 was able to increase the yield of hybrid corn seed production. The results of the 5% BNT further test showed the values obtained from observations of the number of rows filled with seeds, the number of seeds in a row, the weight of 10 cobs without husks and the weight of shelled 10 cobs in a row, namely, 12.1, 23.6, 1166.7, 867, 3.