Molecular Genetics and Breeding

Soh, A. C.; Mayes, Sean; Roberts, Jeremy; Zaki, Noorhariza Mohd; Madon, M.; Schwarzacher, Trude; Heslop-Harrison, Pat; Ithnin, Maizura; Din, Amiruddin Mohd; Ramli, Umi Salamah; Othman, Abrizah; Yaakub, Zulkifli; Ti, Leslie Low Eng; Ong‐Abdullah, Meilina; Singh, Rajinder; Teh, Chee Keng; Kwong, Qi Bin; Ong, Ail Ling; Mohamed, Mohaimi; Apparow, Sukganah; Chew, Fook Tim; Appleton, David R.; Kulaveerasingam, Harikrishna; Teh, Huey Fang; Mebus, Katharina; Neoh, Bee Keat; Ooi, Tony Eng Keong; Wong, Yick Ching; Cros, David

doi:10.1201/9781315119724-9

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oil palm as a perennial crop usually requires 12-20 years to complete a selective breeding cycle [24]. Consequently, improvement of oil palm planting material is much slower than annual crops.…”

Section: Discussionmentioning

confidence: 99%

“…This is partly the result of infrequent replanting with typical 25 years per cycle in oil palm. The recent advancement of genomics and molecular breeding in oil palm, however, is expediting the breeding progress to produce high-yield planting materials such as GenomeSelect TM to bring improvements to oil yield in existing fields without further expansion and clearance of forest land [24,25]. Moreover, the rapid introduction of elite planting materials motivates early replanting for the oil palm industry to take advantage of better oil yield and to reduce labor shortage, especially for FFB harvested from tall palms.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Ethephon-Induced Abscission of Oil Palm Fruits at Optimal Bunch Ripeness and Retting Period to Improve Commercial Seed Production

Low¹,

Fong²,

Teh³

et al. 2021

Horticulturae

Self Cite

View full text Add to dashboard Cite

Oil palm seed producers typically require 10 months of various processes from pollination to seed germination to produce commercial dura × pisifera hybrid seeds. Conventional forced fruit shedding from underripe fresh fruit bunches (FFB) usually causes seed damage and an extended retting period (incubation for natural fruit abscission from spikelets), eventually leading to bunch rot and disease infection. As a fruit ripening agent, ethephon has been explored to hasten fruit abscission in many fruit crops and oil palm. Nevertheless, the previous studies in oil palm only focused on fruit shedding from FFB to improve oil extraction rate in oil mills without considering the actual FFB ripeness and retting period, which are critical for oil palm seed production. In this study, the application of ethephon containing buffer (adjusted to pH 9.0) to underripe FFB at 145 days after pollination (DAP), 135 DAP and 125 DAP resulted in 50% more fruit abscission after a 72-h incubation. Considering the minimal seed loss upon FFB harvest (<1%) and 50% reduction in retting period, underripe FFB at around 145 DAP was found to be optimum for seed production using ethephon treatment. The treatment, however, made negligible improvement in fruit detachment for ripe FFB at 150 DAP and older. Importantly, seed germination and culling rate at nursery stages were not significantly affected by the ethephon treatment. Hence, ethephon application can improve commercial seed production practices for oil palm.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ethephon-Induced Abscission of Oil Palm Fruits at Optimal Bunch Ripeness and Retting Period to Improve Commercial Seed Production

Low¹,

Fong²,

Teh³

et al. 2021

Horticulturae

Self Cite

View full text Add to dashboard Cite

show abstract

Basal Stem Rot of Oil Palm: The Pathogen, Disease Incidence, and Control Methods

Zakaria

2023

Plant Disease

View full text Add to dashboard Cite

Basal stem rot of oil palm caused by Ganoderma boninense is the most serious disease of oil palm in Malaysia, Indonesia, and other oil palm producing countries. Economic losses caused by the disease can be up to USD500 million a year. For many years, basal stem rot was found to infect older palms of over 25 – 30 years. Only in the 1950s, the disease began to appear in much younger palms (10 to 15 years old) and in the last decade or so, palms as young as 1 year were infected by the disease. The highest incidence occurs in coastal areas of Southeast Asia but the disease has now infected oil palm in inland areas, mainly oil palm planted in peat soils. Disease incidence is also high in areas previously growing coconut or forest. Basal stem rot infection and spread occur through root-to-root contact, and basidiospores that colonize the roots also play a role. In the early stages of infection by G. boninense, the pathogen behaves as a biotroph and later as a necrotroph, secreting cell wall-degrading enzymes and triggering host defense responses. Genes, gene products and metabolic pathways involved in oil palm defense mechanisms against G. boninense have been identified, and these metabolites have the potential to be used as markers for early detection of the disease. Integrated disease management used to control basal stem rot includes cultural practices, chemical control, and application of biocontrol agents or fertilizers. Early detection tools have also been developed which could assist in management of basal stem rot infections. Development of resistant or tolerant oil palm is still at an early stage, so the existing integrated disease management practices remain the most appropriate methods for managing basal stem rot of oil palm.

show abstract

Molecular Genetics and Breeding

Cited by 2 publications

References 1 publication

Ethephon-Induced Abscission of Oil Palm Fruits at Optimal Bunch Ripeness and Retting Period to Improve Commercial Seed Production

Ethephon-Induced Abscission of Oil Palm Fruits at Optimal Bunch Ripeness and Retting Period to Improve Commercial Seed Production

Basal Stem Rot of Oil Palm: The Pathogen, Disease Incidence, and Control Methods

Contact Info

Product

Resources

About