Possible sources of genetic resistance in oil palm (Elaeis guineensis Jacq.) to basal stem rot caused by Ganoderma boninense ? prospects for future breeding

Abstract

Oil palm estates in southeast Asia suffer from substantial losses due to basal stem rot caused by Ganoderma boninense. Field observations have been carried out in North Sumatra, Indonesia, on a series of planting materials of known origin. Differences in susceptibility to the disease have been detected within the two Elaeis species, guineensis and oleifera. Within Elaeis guineensis, material of Deli origin is highly susceptible compared to material of African origin. It is also possible to detect differences in reaction between parents and between crosses within a given origin. The variability of resistance to basal stem rot within the same cross is also illustrated by the diverse responses of clones derived from palms of the same origin. The prospects opened up by these results are discussed, and the importance of performing an early selection test is highlighted.

Pengendalian Penyakit Busuk Pangkal Batang Kelapa Sawit secara Kultur Teknis

“…Sementara itu, teknik pengendalian secara kimiawi sintetik menggunakan beberapa bahan aktif fungisida juga dilaporkan kurang memuaskan. Pengendalian penyakit BPB yang paling ideal ialah menggunakan tanaman toleran Ganoderma (Idris et al 2004;Durand-Gasselin et al 2005), tetapi untuk mendapatkan tanaman yang toleran masih membutuhkan waktu yang relatif lama. Oleh karena itu, tujuan penelitian ini ialah untuk menentukan strategi pengendalian secara kultur teknis.…”

About Ganoderma boninense in oil palm plantations of Sumatra and peninsular Malaysia: Ancient population expansion, extensive gene flow and large scale dispersion ability

“…Turner (1981) described the disease as 'the most annihilating disease of fields palms causing significant losses in Southeast Asia'. Since then, much effort has been devoted to studying the oil palm's defense mechanisms against G. boninense infection and to developing BSR resistant or tolerant varieties (Idris et al 2004;Durand-Gasselin et al 2005;Tee et al 2013;Ho & Tan 2014). While some studies have attempted to improve understanding of the biology and diversity of G. boninense by describing its morphology in detail (How & Nawawi 1985), characterizing its modes of sexual reproduction (Pilotti et al 2002) and quantifying its genetic diversity with molecular markers (Miller et al 1999) or mating type systems studies (Pilotti et al 2003), its genetic diversity and population structure across oil palm plantations in Southeast Asia are still poorly understood.…”

Identification of a partial oil palm polygalacturonase-inhibiting protein (EgPGIP) gene and its expression during basal stem rot infection caused by Ganoderma boninense

“…In oil palm, the basal and upper stem rot diseases caused by G. boninense, and vascular wilt disease caused by Fusarium oxysporum f.sp. elaeidis, can cause substantial losses of palms (Durand-Gasselin et al, 2005).…”