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First Day Cover
首日封
Sobrescrito de 1.º Dia
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Hybrid Rice
Date of Issue : 25 October 2013
2-1 : Seed Production
2-2 : Harvest
In 1964, Yuan Longping, a Chinese agriculturalist hailed as "Father of Hybrid Rice", led a team and pioneered in China in the research and development of a better rice breed. In the 1970s, a type of hybrid rice was successfully developed and introduced into extensive cultivation. So far, more than 40 countries have been involved in the introduction, research and promotion of hybrid rice.
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