เสถียรภาพของปาล์มน้ำมันเทเนอราในชั่วรุ่นลูก

Abstract

The stability of oil palm is its adaption and produce high yield in different environments with low value of genotype x environment interaction. The objective of this study was to evaluate the stability of oil palm progenies in multi-location. Five progenies and one varieties of oil palm (118, 119, 130, 132, 137 and surat thani 2), aged 5 years old, were chosen Songkhla as materials in this study. These progenies were planted in the field at 3 locations: Ranot, Khlong Hoi Khong and Rattaphum districts. Randomized complete design (CRD) with 3 replications was used for the experimental design. Additive main effects and multiplicative interaction (AMMI) was used for stability evaluation of oil palm yield by analyzing with R-program. The results on varietal stability revealed that oil palm progeny number 130 showed high stability in bunch yield and bunch number. Oil palm progeny number 119 was high stability in oil yield and single bunch weight. Oil palm progeny number 118 was high stability in oil per bunch (%). For each location, surat thani 2 could provide bunch number, single bunch weight, bunch yield, oil per bunch (%) and oil yield better than the other progeny at Ranot district. While oil palm progeny number 132 could provide high oil yield and single bunch weight at Khlong Hoi Khong district. The oil palm progeny number 137 exibited of high yield in bunch yield and bunch number while oil palm progeny number 119 showed of high oil per bunch (%) at Rattaphum. Additive main effects and multiplicative interaction can analyze effect of genotype x environment interaction effectively, which is useful a tool to select oil palm for a specific location.