PENENTUAN NILAI TETUA DALAM PERSILANGAN KELAPA SAWIT (Elaeis guineensis Jacq.) DENGAN PENDEKATAN REGRESI

• Main Authors: , HARIMURTI BUNTARAN, , Dr. Ir. Nasrullah, M.Sc.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/120253/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=60273
• Institution: Universitas Gadjah Mada

D�D and or D�T crosses in oil palm breeding are used to form progeny in order to produce superior varieties that favourable for breeding purposes. Parents that produce a lot of superior progenies are highly valuable. The objective of this study was to evaluate the parental value through progenies of their crosses worked by Indonesian Oil Palm Research Institute (IOPRI) at six testing estates of PTP Nusantara III, and to single out parents that have the best contribution in terms of bunch number and fresh fruit bunches (FFB). Records varied from 5 to 14 years. 82 crosses were selected number as they have common ancestor. The mean number of bunches and FFB were regressed on genetic contribution of their parents so obtained regression coefficient. The regression coefficient reflects the parental value. Two parents having similar regression coefficient means both can mutually interchangeable in a cross. The highest regression coefficient for bunch number and FFB are RS3T and MA284D. With respect to those characters they are valuable parents in plant breeding programme. There are five groups based on the genetic contribution of parents for bunch number and FFB. The first group is RS3T. The second group is LM2T, LM9T, and MA284D. The third group is BJ7D, LM239T, MA845T, DA8D, and MA213D. The fourth group DS25D, DS29D, MA275D, MA367D, and PA131D. The fifth group is GB30D and TI221D.