FRAXINUS GRIFFITHII

描述

Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-07-11.

Fraxinus griffithii is a semideciduous tree growing up to 50 metres tall, but only to 20 metres in China. The bole is up to 90cm in diameter[266 , 310 ]. The plant is harvested from the wild for local use as a medicine and source of wood. It was at one time believed to be an opium substitute but, although the smell is similar, it does not contain opiates. It is a natural pioneer species and can be used in reforestation projects, is sometimes grown as a shade tree in coffee plantations and sometimes also as a wayside tree[310 ]. Although Fraxinus griffithii is a pioneer species, it does not appear to be common or dominant anywhere in South-East Asia. Because it grows in unstable vegetation types in Malesia, it is likely to be at risk from fire or changing land use[310 ]. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2018)[338 ]

起源

E. Asia - China, southern Japan, India, Bangladesh, Myanmar, Vietnam, Malaysia, Indonesia, Philippines.

用途

The plant is sometimes grown as a shade tree in coffee plantations[310 ]. It is frequently found as a pioneer species on old lava flows (East Java, the Philippines) or in open rain forest or in Casuarina junghuhniana forest[310 ]. Fraxinus species in general are gross feeders with an extensive, fibrous root system, which makes transplanting easy, but means that other species will often not grow well if planted nearby, especially if they are shallow rooted[200 ],

收获和种子生产

The seed is best harvested green - as soon as it is fully developed but before it has fully dried on the tree - and can then be sown immediately in a nursery seedbed[80 ]. Stored seed requires a period of cold stratification and is best sown as soon as possible in a nursery seedbed[200 ]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on until large enough to plant out. The seed lies dormant in the ground for a whole year after falling from the tree, and transplanting from the nursery is therefore better than direct sowing. Seed may be sown as soon as it is ripe in a nursery seedbed, or can be sown after the cold season. In either case it germinates after the following cold season, either seventeen or twelve months later as the case may be. Transplanting is preferably done in the cold season, with seedhngs kept about two seasons in the nursery. During the first season the growth of the seedhng is comparatively slow, but during the second season it is usually faster, a height of 60cm being attainable by the end of the season under favourable conditions, while by the end of the third season a height of 90 - 150cm Is ordinarily attained[652 ].

参考文献

Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-07-11.