Adaptation of growth and yield of several hybrid corn varieties of Balitbangtan on dryland agroecosystems in young Albasia Forest Area

Select varieties with high yields and adaptive to the environment are one way to increase corn productivity. The study aimed to determine the adaptability of the growth and yield characteristics of superior national varieties of hybrid maize to shade stress. The study was carried out in a community forest area, Kalices Village, Kendal Regency, from March-September 2020. The study was designed using a split-split plot randomized block design with treatments for each sub-plot: (1) shade blocks 0%, 20%, and 40%; (2) application of cultivation technology for plant management recommendations for Integrated Crop Management (PTT) and farmer recommendations; (3) Varieties JH-37, NASA-29, and existing farmer hybrids. Data were analyzed using variance; if they were significantly different, they were further tested by Duncan’s Multiple Range Test (DMRT) at the 5% level. The results showed that the highest adaptive capacity was obtained by local corn with a density of 20%. The local hybrid variety Bisi-18 showed the highest dry shelled yield at 5.9 t/ha, followed by Nasa 29 at 5.8 t/ha dry shelled, and the JH 37 variety at 5.2 t/ha dry shelled.