The World's Worst Weeds: Distribution and BiologyEast-West Center, 1977 - 609 pages For each of the important weed species we have attempted in these pages to present a summary of the world distribution, the known biology, and the agricultural importance. A line drawing and a description is included for each species, as well as a list of common names used in the countries where the weed is troublesome. |
Table des matières
Cyperus rotundus L | 9 |
Fimbristylis miliacea L Vahl | 273 |
Galinsoga parviflora | 280 |
Droits d'auteur | |
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achene aerial shoots AGRICULTURAL IMPORTANCE annual areas Argentina arvensis Asia Australia BIOLOGY blocks signify bracts Brazil buds Canada cereals Ceylon cm long coffee Colombia COMMON NAMES common weed cordata corn cotton crops 1 crop crops FIGURE crusgalli culms cultivated cylindrica Cynodon dactylon Cyperus rotundus distribution dormancy EASTERN AFRICA Echinochloa Echinochloa crusgalli Eleusine indica emergence fatua fields flower fruit germination glume grow growth hairs hairy Hawaii hectare herbicides India Indonesia inflorescence Japan Kenya leaf leaves lemma ligule Malaysia Mexico moisture nodes pastures peanuts percent perennial grass Philippines photoperiod pineapples plant POACEAE potatoes principal weed produce quackgrass repens reported rhizomes rice root season seed germination seedlings serious or principal serious weed sheath smooth soil sorghum South Africa Soviet Union soybeans species spikelet spread stamens stems Striga studies sugar beets sugarcane surface Taiwan temperatures Thailand tion Trinidad tropics tubers United vegetables wheat wide world in countries Zealand