The amelioration of cultivars

 
 

Sweet potato is originally a very important crop which is for food and feedstuff in Taiwan. And the area of cultivation is second to that of paddy field. Because of the income increase, the consumers eat sweet potato less and less. So the supply of sweet potato is also reducing. Now it is not only used for cooking but also changed into all-purpose like the raw materials of industry, food processing, and feedstuff…etc. The breed of sweet potato has also changed with the use and the development of multiplicity aspect.

The breed of sweet potato has also changed with the use and the development of multiplicity aspect

The breed of sweet potato has also changed with the use and the development of multiplicity aspect

  
 
 

Using the biotechnology to breed the cultivar of antibiosis from bugs

Using the biotechnology to breed the cultivar of antibiosis from bugs
The use of breeding sweet potato on biotechnology is focused on the antibiosis from bugs and the quality of amelioration. According to the antibiosis from bugs, they emphasize on those bugs that have not found the available antigen, for example, the disease of sweet potato virus, and Sweet Potato weevil. It is hard to prove effective for the harm of these bugs which is adopted by the regular breeding. The best way is using the biotechnology and making the other fountainhead of gene to lead-in the cultivar of sweet potato.
  
 
 

The achievement of sweet potato breeding is still excellent, in addition to breed the cultivars for feedstuff, they also have different use of new cultivars for amylum and vegetable. At the same time, the new cultivars can accommodate every season to breed. The new breeding of cultivars in sequence has more than 50. They are Tai-agri No. 31 to No.70, Tainan No.1to No.16, Taoyuan No. 1 to No. 3…..etc. Among others, the Tai-agri No. 65 is high protein which can achieve in 6%. The cultivars for cooking are Tai-agri No. 57, No. 66, and No. 70; as for amylum are Tai-agri No. 44 and Tanan No. 14, and for leafy sweet potato are Tai-agri No. 71 and Taoyuan No. 2.

 
 
 

The list of sweet potato in breeding cultivar over the year

name
characteristic
remark
Tai-agri No. 72
spindle in tuberous root, cutis in deep red, smooth, orange flesh, harvest in fall, each acre has 0.3 tons, the rate of dried in root tuber is about 28-32%, the content of fresh root tuber reducible carbohydrate is 4.63 mg per 100 g, the content of fresh root tuber carotene is 3773 unit per 100 g, for eating and the raw material of roast
denominated in 2003

Tai-agri No.71 (for leafy sweet potato)

Cultivar for leafy ,fine quality leaf, less bitter, abounding vitamin A,C, and folic acid, color in green after cooking, taste good, the whole year cultivation.
denominated in 1998
Tai-agri No. 70
Cultivar for eating, orange flesh, section in brown intensity section in brown intensity extreme low.
denominated in 1993
Tai-agri No. 69
Cultivar for eating, orange flesh, section in brown intensity low.
denominated in 1991
Tai-agri No.68
 Cultivar for processing, high content amylum, stem and leaf growth fast, for vegetable in summer.
denominated in 1985
Tai-agri No. 67
 Cultivar for eating, orange flesh, resist Sweet Potato weevil, suitable to be cultivated in fall.
denominated in 1985
Tai-agri No. 66
 Cultivar for eating, reddish core in sweet potato, contents high carotene, strong adaptability.
denominated in 1982
Tai-agri No. 65
 Cultivar for cooking sweet potato and feedstuff, protein content high, suitable to be harvested in fall.
denominated in 1981
Tai-agri No. 64
 Cultivar for cooking, orange flesh, test good, suitable to be cultivated in fall.
denominated in 1977
Tai-agri No. 57
Cultivar for steaming, boiled, baking and roasting; orange flesh, test good, generating fast.
denominated in 1956

Reference from : Agricultural Research Institute

 

  
 
 

When looking into the reason why sweet potato breeds successfully in Taiwan, one would attribute it to Taiwan's geographic location that falls in the sub-tropic zone, and its pluperfect communal facilities in agriculture, effective agricultural research institute and agriculturist organization in each countryside, developmental agriculture processing, and diligent, aggressive agriculturist From 1989 to now, the areas of cultivation are keeping at 100 acres for mainly eating and food processing. In the future, the goals of breeding sweet potato shall be moving toward refinement and specialization. The goals for future development will be to reduce total yield but with improved quality, emphasizing freshness, uniqueness, and diversification in processing products. It is hoped that sweet potato will become a food crop with both competitiveness and local characteristics. In order to further expand the usefulness of sweet potato, research into the healthy and life-beneficial aspect of sweet potato will be explored.

It is good for developing the production of sweet potato to enhance the study method of processing

It is good for developing the production of sweet potato to enhance the study method of processing

  
 
We would like to thank the supply of the pictures from Dr. Yong-Chang Lai in Agriculture Experiment Institute