Genetic Diversity of Yield and Agronomic Traits in Sugarcane Germplasm 258 Clones

Abstract

Identification of genetic diversity of germplasm is play an important role in sugarcane breeding programs. The objective of this study was to evaluate genetic diversity of sugarcane based on yield and agronomic traits. The experimental design was used a randomized complete block design (RCBD) with two replications, during January 2014 to January 2015 at the experimental research and development station, Mitr Phol Company, Nong Ruea District. Khon Kaen province. The 258 clones were assigned as treatments, which each sugarcane genotype was planted in a single row by a spacing 1.5 x 0.5 m Yield, stalk length, stalk weight, stalk diameter, number of stalk/stool and brix were collected at 12 months after planting. The sugarcane genotype, MPT07-71 had high cane yield (24.3 kg/m 2) and M147/44 had high stalk length(356.5 cm), PR3067, BO24 and MPT04-55 had high number of stalk/stool, TBy20-2248, F177 and ROC21 had a large stalk size (45.1 43.7 and 42.8 mm, respectively). MPT04-467 and K84-200 had high single stalk weight LF79-640, AIWA, CP72-120, Q115 and NCo8 had high brix value (25.3-29.0obrix). This information is very important for sugarcane breeders to select the parental lines to improve the new varieties for high
cane and sugar yield.