Thesis on integrated weed management in cowpea

The field of Affective Computing AC expects to narrow the communicative gap between the highly emotional human and the emotionally challenged computer by developing computational systems that recognize and respond to the affective states of the user. Affect-sensitive interfaces are being developed in number of domains, including gaming, mental health, and learning technologies.

Thesis on integrated weed management in cowpea

Top of page The generic name is derived from the Greek echinos, hedgehog, and chloa, grass, in reference to the spikelets in many species that are covered with hard bristles. The specific epithet comes from the Latin colonus, farmer; it is commonly misspelled colonum.

Michael ; noted that the correct spelling of the specific epithet is colona not colonum because the name was derived from the non-classical Latin adjective colonus-a-um. The adjective colona having the feminine ending '-a' must be accepted when combined with Echinochloa.

Top of page Annual, with fibrous, rather shallow roots. Culms stout, usually reddish-purple, erect, ascending or decumbent, often branching from the base, often rooting at the lower nodes, cm tall, sometimes nodes conspicuously swollen and usually geniculate, compressed, lower internodes often exposed.

Sheath cm long, compressed, keeled, glabrous, ligule absent; leaf blades light green, sometimes with transverse purple bands, flat, glabrous, elongate, cm long, mm wide, margins occasionally scabrous, apex acute.

Thesis on integrated weed management in cowpea

Panicle erect or nodding, green or purple-tinged, cm long. Racemes numerous, cm long, spreading, ascending, sometimes branched, the lower ones up to 1 cm apart, the upper ones crowded. Spikelets green tinged with purple, crowded, arranged in ca 4 rows, about 3 mm long, rarely with a short point up to 1 mm long.

Caryopsis whitish, broadly ovate, 1. Seedlings have rolled leaves with pointed tips. The blades and sheaths are usually, but not always, green. There are no auricles or ligules and stems are circular in cross-section.

Thesis on integrated weed management in cowpea

The lowermost leaf sheath has a few hairs but most other leaf sheaths are smooth. The usually flaccid leaf blade has faint striations, a white midrib and smooth margins, at least in the upper part. Young plants have erect leaves thickened at the base and culms are sometimes flat and spreading Zimdahl et al.

The absence of a ligule, the purplish-tinged leaves and the neatly 4-rowed racemes are characteristic of E.Notes on Taxonomy and Nomenclature Top of page. Rottboellia is a small genus of species native to the tropics of Asia and widespread in is a typical member of the grass tribe Andropogoneae, characterized by the inflorescence disarticulating into floral units consisting of a sessile spikelets, pedicellate spikelet, and internode.

Summary of Invasiveness Top of page. E. colona is a cosmopolitan weed common in crops (mainly rice, maize and vegetables), gardens, roadsides, disturbed sites, waste areas and pastures. It also grows along waterways, on the margins of lakes and ponds, in swamps and wetlands, and in .

The introduction of the Integrated weed Management (IWM) in Zimbabwe's small holder sector seemed to be the answer to the weed management problem in the sector. List of Thesis Titles of PG Students (1) Uploaded by lakhi.

Related Interests. Tomato; Onion; Banana; Studies on integrated weed management in carrot (Daucus “Studies on the effect of plant densities and phosphorus levels on the growth and yield of vegetable cowpea (Vigna unguiculata L.)”.

Integrated weed management in tomato 5/5(1). integrated weed management in soybean a thesis submitted to the faculty of university of minnesota by amanda marie flipp in partial fulfillment of the requirements. ABSTRACT: The issues of food security and family sustenance have been a major challenge in recent times due to the importance of food as the basic necessity of life.

A large number of urban dwellers have not been able to meet the need of food for family consumption. Due to urban development, there is inadequate access of land for subsistence order to find solution to this food.

Rottboellia cochinchinensis (itch grass)