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More Applications for Space Mutated Seeds

Heilongjiang Academy of Agricultural Sciences Institute of Horticulture has bred out

improved species based on space mutated plants, and grown them on an expanded basis.

In the period from 1987 to today, researchers have collected new seeds breeding materials

to produce space mutated tomato species Yufan-1 and Yufan-2, and green peppers,

including Yujiao-1, -2, -3, and -4.

Yujiao-1 sweet pepper is featured with an increased weight, enjoying an averaged weight

at 200g, and the largest one at 400g. The mutated species claims an enhanced resistance

to diseases and viruses, with reduced diseases indexes by 18.9% and 15.12%, compared

with the dominating species. The pepper has a VC content of 132.26mg/l, or 29.9% more

compared with the dominating species, enjoying a raised soluble solid content by 22.4%.

The fragrant and high yield pepper is able produce a yield as high as 5,000 kg a mu (1 mu=

0.0667 hectare), or 16.42% higher than the dominating species. It can grow either in fields

or in greenhouses.

Yujiao-2, the second space mutated generation, is a sweet species grown in space and sent

back by a recoverable satellite in 1987, enjoying numerous merits, including large fruit,

fine quality, enhanced resistance to diseases, even shape, smooth surface in a rectangular

shape, and both sweet and crispy in taste. The mutated species grows vigorously in the

field, enjoying a strong resistance to diseases and viruses. It has since 1993 grown on

210,000 mu of croplands in more than 20 provinces and cities, including Jilin, Liaoning, and

Beijing, reaping an economic benefit worth RMB 420 million.

Yufan-1 tomato savors a vigorous growth, with a height reaching 2m or more in a

greenhouse environment. After a growth period ranging between 110 and 115 days, the

mutated species would produce a large sweet fruit of high nutrition content, with the

largest one weighing 0.8kg and the averaged one 0.25 kg. The fruit, bright yellow in color

with thick sandy and sweet flesh, may produce a yield of 5,000 kg a mu. The new species

has gown in some 200,000 mu, produced an added value worth RMB 200 million.

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