Yield stability evaluation of upland rice lines obtained from anther culture

Abstract

The objective of this research was to study the adaptation and yield stability of upland rice lines obtained from anther culture. Ten upland rice doubled-haploid (DH) lines were tested for their potential yield in eight different locations (in Provinces of Lampung, West Java, Central Java, Yogyakarta, East Java - Indonesia) in the rainy season of 2010/2011 along with two check varieties (Way Rarem and Batutegi). In each location, the design was Randomized Complete Block Design with four replicates. The method of Francis & Kannenberg, Finlay & Wilkinson, Eberhart & RusseIl and AMMI (Additive Main Effect Multiplicative Interaction) were used to analyze the adaptation and yield stability of the tested DH lines. The results indicated that the line showing the most stable yield in different environment was I5-10-1-1 followed by WI-44, and IG-38. I5-10-1-1 produced 4.01 tons of dry grain per hectare. The line showing the highest yield was WI-44, and this line produced 4.72 tons of dry grain per hectare. Visualization with AMMI showed that IW-56 and IW-67 lines were specifically adapted in Purworejo, O18-b-1 is specifically adapted in Bogor, and IG-19 is specifically adapted in Malang, respectively.