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It was thus difficult to produce hybrid rice in large quantities. In 1961 he spotted a seed-head of wild hybrid rice. [12] By 1964, Yuan hypothesized that naturally-mutated male-sterile rice could exist and could be used for the creation of new hybrid rice varieties. He and a student spent the summer searching for male sterile rice plants.
Rice paper is a product constructed of paper-like materials made from different plants. These include: These include: Thin peeled dried pith of Tetrapanax papyrifer : A sheet-like "paper" material was used extensively in late 19th century Guangdong , China as a common support medium for gouache paintings sold to Western clients of the era.
Hybrid Rice. Hybrid rice is a type of Asian rice that has been crossbred from two very different parent varieties. [1] As with other types of hybrids, hybrid rice typically displays heterosis or "hybrid vigor", so when grown under the same conditions as comparable purebred rice varieties, it can produce up to 30% more yield. [2]
Borlaug's colleagues at the Consultative Group on International Agricultural Research also developed and introduced a high-yield variety of rice throughout most of Asia. Land devoted to the semi-dwarf wheat and rice varieties in Asia expanded from 200 acres (0.8 km 2) in 1965 to over 40 million acres (160,000 km 2) in 1970. In 1970, this land ...
Henry Monroe "Hank" Beachell (September 21, 1906 – December 13, 2006) was an American plant breeder. His research led to the development of hybrid rice cultivars that saved millions of people around the world from starvation.
This sub-section is about paper making; for the writing material first used in ancient Egypt, see papyrus.. Paper: Although it is recorded that the Han dynasty (202 BC – AD 220) court eunuch Cai Lun (50 AD – AD 121) invented the pulp papermaking process and established the use of new materials used in making paper, ancient padding and wrapping paper artifacts dating from the 2nd century BC ...
Xuan paper, Shuen paper, or rice paper, is a kind of paper originating in ancient China used for writing and painting. Xuan paper is renowned for being soft and fine-textured, suitable for conveying the artistic expression of both Chinese calligraphy and painting .
Cai's improvements to paper-making are considered to have had an enormous impact on human history, and of those who created China's Four Great Inventions—the compass, gunpowder, papermaking and printing—Cai is the only inventor whose name is known.