Rottboellia exaltata pdf download

In the field the soil tended to be somewhat wetter when the two species were grown together than when maize was grown alone, and was wettest with r. Soemantri brojonegoro, no 1 bandar lampung 35145 abstrak produksi jagung pada tiap tahunnya. It infests mainly annual and perennial crops, roadsides and vacant land. The effects of shading on the growth and photosynthetic capacity of itchgrass rottboellia exaltata volume 27 issue 5 david t. Abstract rottboellia cochinchinensis is an annual grass weed species known as itchgrass, or. Clayton, popularly known as itchgrass is the main weed of at least 18 crops grown in many countries. Rottboellia cochinchinensis is an aggressive invasive species native to asia. Each segment contains a stalked spikelet fused to the side, a stalkless spikelet embedded in the internode, and a short, cylindrical elaisome an oil and proteinrich structure that attracts ants. Pengaruh gulma asystasia gangetica, rottboellia exaltata, dan cyperus rotundus pada berbagai tingkat kerapatan terhadap pertumbuhan dan produksi tanaman jagung zea mays oleh chintya ayu alvionita jurusan agroteknologi, fakultas pertanian universitas lampung jl.

Proceedings of the 32nd annual meeting of the southern weed science society. You dont appear to have permission to access the item. The effects of shading on the growth and photosynthetic capacity. It is a weed of recent introduction, however, much spread already in the midsouth of brazil. The genus was named in honour of danish botanist christen friis rottboll 17271797. Pdf rottboellia cochinchinensis is an aggressive invasive species native to asia. Pdf on sep 28, 2018, victor maddox and others published itchgrass rottboellia cochinchinensis lour. Pdf growth behavior of itchgrass rottboellia cochinchinensis in. Stems up to 3 m high, supported below by stiltroots, the basal sheaths painfully hispid. Rottboellia exaltata itchgrass, raoulgrass this plant and synonym italicized and indented above can be weedy or invasive according to the authoritative sources noted below. It is a tall, tufted annual grass whose stems grow up to 300 cm in height with leafblades of up to 45 cm in length.

Seed dissemination tests with rottboellia exaltata linn. Foliage stems and leaves are covered with stiff, irritating hairs. Pdf first record of the invasive species rottboellia. Growth behavior of itchgrass rottboellia cochinchinensis in peninsular malaysia. Rottboellia cochinchinensis rottboellia cochinchinensis. Potential distribution of rottboellia exaltata in the united states. This plant may be known by one or more common names in different places, and some are listed above. Rottboellia cochinchinensis is a species of grass known by the common names itchgrass, raoul grass, corngrass, kokoma grass, guineafowl grass, jointed grass, shamwa grass and kelly grass. Rottboellia cochinchinensis is an erect annual grass that reaches. Rottboellia cochinchinensis is an annual grass that invades disturbed and agricultural areas throughout the southeastern united states. Leaf sheaths tuberculatehispid with stiff irritant hairs or some. Seed dormancy and germination in rottboellia exaltata. One pot and five field experiments were made to study different aspects of the competition between r. Pengaruh gulma asystasia gangetica, rottboellia exaltata.

Plants profile for rottboellia cochinchinensis itchgrass. Rottboellia exaltata is an annual plant, cespitous, upright, with leaf sheaths which are densely covered by rigid bristles and 1. Racemes 315 cm long, glabrous, terminating in a tail of reduced spikelets, gathered into a leafy false panicle. Rottboellia cochinchinensis, itchgrass noxious weeds. The species flowers at the apex of culms in the form of spikelike racemes composed of. Alves 2003 state that, \ rottboellia cochinchinensis is an aggressive weed, considered to be one of the 12 worst weeds that infest sugarcane saccharum officinarum l. Pdf chemical control of rottboellia exaltata in sugarcane. Competition between maize and rottboellia exaltata the. Pdf biology and management of rottboellia cochinchinensis 1. This species is known worldwide for invading crops and.