- Scientific Name: Amaranthus Spinosus L.
- English Name: Spiny Amaranth
- Khmer Name: Phti Banla (ផ្ទីបន្លា)
Erect annual herb bearing a pair of diverging stipular spines. Stem stout, smooth, fleshy, longitudinally grooved, much branched, reddish, with pairs of slender, sharp-pointed spines at the axils of the leaves and branches. Leaves simple, alternate, broadly lanceolate to ovate, with entire margins, and base tapering to slender petiole. Inflorescence terminal and axillary with spikes of closely packed clusters of small purplish or green flowers. Fruit is l-seeded dehiscent capsule. Seed black, glossy, and lens-shaped.
Found in cultivated fields, waste places, roadsides, garbage heaps, and abandoned fields. Thrives in both dry and wet soils but grows well when soil moisture levels are below field capacity. Does not grow well in shade or cold temperatures, which suppress spine development and flowering. Propagation by seeds.
A principal weed in upland rice, ti is very competitive and can cause 80% reduction in yield. An alternate host of nematode Meloidogyne incognita (Kofoid and White) Chitwood and of viruses that produce tobacco mosaic and groundnut rosette.
Found in cultivated fields, waste places, roadsides, garbage heaps, and abandoned fields. Thrives in both dry and wet soils but grows well when soil moisture levels are below field capacity. Does not grow well in shade or cold temperatures, which suppress spine development and flowering. Propagation by seeds.
A principal weed in upland rice, ti is very competitive and can cause 80% reduction in yield. An alternate host of nematode Meloidogyne incognita (Kofoid and White) Chitwood and of viruses that produce tobacco mosaic and groundnut rosette.
No comments:
Post a Comment