Preface
East and Southeast Asian strains
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Japanese Tokyo Kokei Standard, TKS
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Japanese Shizuoka Y033
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Chinese Peking Tendan
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Nepal or N-1
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Philippine Y021
West Asia
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Iran, Y029
Oceania
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Australia Y028
Central America
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Mexico, Y030
South America
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Colombia Y023
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Colombia Y024
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Colombia Y025
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Colombia Y026
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Brazil SU010
Africa
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Africa W001
Comparison of various characters in 13 strains
Afternoon flower-opening Morning glory, Ipomoea nil
Comparison of the flower-opening time
Place of origin and dispersion of Ipomoea nil