PERFORMANCE OF CLONES OF THE 2018-CROSSBREED IN INCEPTISOL SOIL

Abstract

One way to increase sugarcane productivity is by improving the genetic potential through breeding by creating superior varieties with high sucrose content and quality. Improving the genetic potential can be done through hybridization followed by selection. The study took place in KP Karangploso, Malang, from January to December 2019. The study used 153 selected clones from the 2018 crossbreed (MLG-18). Each clone was planted on a plot consisting of 3 rows of 5 meters. The CTC (center-to-center) distance was 100 cm. Bud sets were grown in the nursery as seeds. Growing seeds aged 1.5 months were uniformly selected and planted in rows with a 50-cm planting distance; thus, each plot held 30 plants. Fertilizing was done with a dose of 160 kg N + 70 kg P2O5 + 60 kg K2O per ha. We observed the following parameters: number of stalks per clump, stalk length, stalk diameter, stalk weight per clump, sucrose content, and sugar sugar. This study aimed to produce sugarcane clones with high productivity and high quality. Our findings confirmed that: (1) 40 clones produce sugar of more than 0.65 kg per clump or equal to 10 tons per ha; (2) 72 clones have sucrose content of more than 10%; (3) 49 clones have minimum productivity of 6.05 kg per clump; (4) 59 clones have a minimum of 6.3 stalks per clump; (5) 38 clones have stalk weight of more than 1.0 kg per stalk; (6) 42 clones have a minimum stalk length of 150.0 cm; and (7) 1,749 clones have a minimum stalk diameter of 2.00 cm.

Keywords

• performance
• clone
• sugarcane
• crossbreeding
• soil
• inceptisol