A) Yams are grown in America, sweet potatoes are not. B) Yams are always sweeter than sweet potatoes. C) Yams are monocots, sweet potatoes are dicots. D) Yams are orange, sweet potatoes are white.
A) Solanaceae B) Dioscoreaceae C) Convolvulaceae D) Fabaceae
A) Tuber shape B) Flower color C) Stem morphology D) Leaf venation
A) Africa B) Asia C) South America D) North America
A) To defend against predators B) To attract pollinators C) To produce leaves and aerial tubers D) To absorb water from the air
A) Linear B) Alternate or opposite C) Whorled D) Parallel
A) The root hairs on the tuber. B) The protective skin of the tuber. C) The flowering part of the yam plant. D) The top portion of the tuber where vines grow.
A) Dioscorea villosa (Wild yam) B) Dioscorea esculenta (Lesser yam) C) Dioscorea rotundata (White yam) D) Dioscorea alata (Water yam)
A) White yam B) Chinese yam C) Water yam D) Air potato
A) By planting tuber pieces B) By leaf cuttings C) By seeds D) By grafting
A) Rapid vine growth B) Susceptibility to disease C) Flowering season D) A period of inactivity in the tuber
A) Starchy texture B) Potential for toxicity in some species C) Uniform color across all species D) Variable size and shape
A) They are the primary source of food storage. B) They indicate the yam is ready to harvest. C) They are a sign of disease. D) They serve as a form of vegetative propagation.
A) Dioscorea polystachya B) Dioscorea trifida C) Dioscorea cayenensis D) Dioscorea bulbifera
A) Arctic B) Tropical and subtropical C) Temperate D) Desert
A) For ornamental purposes B) As animal feed C) For medicinal purposes only D) As a staple food crop
A) Extremely bitter taste B) Hairy vines and small tubers C) White flesh and cylindrical shape D) Purple skin and round shape
A) A type of starch found in yams. B) A toxic alkaloid found in some yam species. C) A natural pesticide produced by yams. D) A growth hormone in yams.
A) Waterlogged soil B) Well-drained, fertile loam C) Heavy clay soil D) Sandy, infertile soil
A) Grasshoppers B) Aphids C) Yam beetles D) Caterpillars
A) Flowering of the plant B) Drying of the vines C) Appearance of aerial tubers D) Sudden increase in tuber size
A) A disease that affects yams B) The genus of true yams C) A yam harvesting technique D) A type of fertilizer used for yams
A) Prolonged boiling B) Refrigeration C) Sun drying D) Fermentation
A) Extremely hairy vines. B) Highly bitter taste. C) Smaller tubers often produced in clusters. D) Very large, single tubers.
A) Underground tubers B) Aerial tubers (bulbils) C) Root cuttings D) Seeds
A) The taste of the tuber. B) The physical form and structure of the plant. C) The genetic makeup of the plant. D) The growing season length.
A) Wheat rust B) Yam mosaic virus C) Potato blight D) Citrus canker
A) Dioscorea alata (Water yam) B) Dioscorea trifida (Cush-cush yam) C) Dioscorea bulbifera (Air potato) D) Dioscorea rotundata (White yam)
A) Curing B) Fermenting C) Freezing D) Canning |