Yield test of newly collected genotypes of sugarcane under the dry agro-ecological condition

Abstract

At present, the majority (>80%) of sugarcane cultivation in Indonesia is done in dry areas. The development of tolerant variety to dry agro-ecological conditions is one of the strategies to increase sugar production. To start with several genotypes from germplasm collections were assessed for their yield potential under dry ecological conditions. The research was carried out in dry land to test the yield performance of twelve potential genotypes of different maturity and two standard varieties. The research was done at Asembagus, Situbondo, East Java using a randomized block design with three replications. Plot size was 5 m x 10 m, whereas the distance from center to center was 1 m. The parameters observed were plant height, stem diameter, no of stalks per meter row, stalk weight per kg, stalk weight (cane yield) per hectare (TCH), sucrose content (CCS), and sugar yield per ha (SCH). Results revealed that genotypes affected the growth and yield performances of the crop. None of the late-maturing genotypes surpassed the yield of the control varieties. Genotypes PI-Pringu and PI-CYZ of early maturing types were found promising; their SCH values were up to 14 % higher than the control early maturing Variety (PS 881).