Inoculation of tropical trees with Phellinus noxius

Ivory M.H., . (1990) Inoculation of tropical trees with Phellinus noxius. [Proceedings Paper]

Wood pieces wood shavings and agar artificially infected with Phellinus noxius were used to challenge roots stems of young plants in a growth cabinet with control of temperature and photoperiod. Lesions were produced on stems and roots of several tree species following the intimate application of wood pieces and on stems only with applications of wood shavings. Occasionally lesions completely girdled the stem or taproot resulting in the death of the distal portions. Wounding at inoculation usually shortened the period for symptom development with mortality occurring at 10-80 days. Stem inoculations gave better symptom expression than root inoculations because secondary rhizogenesis often masked the death of the taproot whereas shoot death was always immediately obvious even though coppicing occurred quite frequently. These trials have shown that infection can be achieved within a short period using small inocula of various types. However the often low success rates obtained suggest that the activity of inocula and their intimate application to roots and stems are critical for infection to occur. Lesions and shoot death on Coleus scutelarioides stems suggest that this species does not contain or produce potent antifungal chemicals effective against P. noxius

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Abstract

Wood pieces wood shavings and agar artificially infected with Phellinus noxius were used to challenge roots stems of young plants in a growth cabinet with control of temperature and photoperiod. Lesions were produced on stems and roots of several tree species following the intimate application of wood pieces and on stems only with applications of wood shavings. Occasionally lesions completely girdled the stem or taproot resulting in the death of the distal portions. Wounding at inoculation usually shortened the period for symptom development with mortality occurring at 10-80 days. Stem inoculations gave better symptom expression than root inoculations because secondary rhizogenesis often masked the death of the taproot whereas shoot death was always immediately obvious even though coppicing occurred quite frequently. These trials have shown that infection can be achieved within a short period using small inocula of various types. However the often low success rates obtained suggest that the activity of inocula and their intimate application to roots and stems are critical for infection to occur. Lesions and shoot death on Coleus scutelarioides stems suggest that this species does not contain or produce potent antifungal chemicals effective against P. noxius

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Item Type:	Proceedings Paper
Additional Information:	Summary En
AGROVOC Term:	ARBOLES
AGROVOC Term:	INOCULACION
AGROVOC Term:	PHELLINUS
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/15320

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