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