Publication Date
1985
Location
Kyoto Japan
Description
A new variety of Brassica sp., tyfon has been introduced to Japan by Daehnfeldt Inc. through C. Itoh Trading Co., Ltd. The authors have been carrying out a comprehensive research on the qualification of tyfon through a field trial under various environmental conditions in Hokkaido, Japan, including the feeding value of it, etc., since 1983. The experimental result is summarized as follow:
1. Tyfon is widely adaptable to various environmental conditions in Hokkaido. Comparing to other forages under cultivation in Hokkaido, this crop will assure of a higher yield than other forages.
2. The growth of tyfon varies with agronomic conditions. The appearance of the root is either round globe or tankard like a turnip or shaped like a burdock or a carrot. This is mainly to display the phenotype of parents to be controlled by ad justing the density of plants.
3. The regrowth of tyfon is very vigorous and the winterhardiness of tyfon is very strong.
4. Tyfon is responsive to the application of nitrogen fertilizer. The application of 200 kg N/ha resulted in the maximum yield.
5. Generally, tyfon contains higher percentages of protein and other ingredients. Tyfon at the early growth stage contained 24.9 % of crude protein (based on DM), but their contents decreased to a lower level accompanying the advance of maturity. The chemical compositions of tyfon grown at maturity were as follows: crude protein 17.75 %; crude fiber 24.72 %; TDN 64.35 %.
6. No3-N content of tyfon is greatly affected by many factors such as the growth stage, nitrogen application and the location of leaves shooting from the growing point, etc. Generally, the average NO3-N content of tyfon is below 0.3 % and is within the range in which no problem exists for occurrence of nitrate poisoning. From the observation of the field trial of tyfon from 1983 to 1984, this new crop is considered one of the recommendable forages with higher growth, better yield, and higher feeding value under various environmental conditions in Hokkaido. Particularly, it seems cultivable, as well as on the rotation system with other upland crops and as a forage after the renovation of low productive grassland.
Citation
Oohara, H and Hayes, D J., "Production and Chemical Compositions of Tyfon Under Various Environmental Conditions in Hokkaido, Japan" (1985). IGC Proceedings (1985-2023). 16.
(URL: https://uknowledge.uky.edu/igc/1985/ses14/16)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Production and Chemical Compositions of Tyfon Under Various Environmental Conditions in Hokkaido, Japan
Kyoto Japan
A new variety of Brassica sp., tyfon has been introduced to Japan by Daehnfeldt Inc. through C. Itoh Trading Co., Ltd. The authors have been carrying out a comprehensive research on the qualification of tyfon through a field trial under various environmental conditions in Hokkaido, Japan, including the feeding value of it, etc., since 1983. The experimental result is summarized as follow:
1. Tyfon is widely adaptable to various environmental conditions in Hokkaido. Comparing to other forages under cultivation in Hokkaido, this crop will assure of a higher yield than other forages.
2. The growth of tyfon varies with agronomic conditions. The appearance of the root is either round globe or tankard like a turnip or shaped like a burdock or a carrot. This is mainly to display the phenotype of parents to be controlled by ad justing the density of plants.
3. The regrowth of tyfon is very vigorous and the winterhardiness of tyfon is very strong.
4. Tyfon is responsive to the application of nitrogen fertilizer. The application of 200 kg N/ha resulted in the maximum yield.
5. Generally, tyfon contains higher percentages of protein and other ingredients. Tyfon at the early growth stage contained 24.9 % of crude protein (based on DM), but their contents decreased to a lower level accompanying the advance of maturity. The chemical compositions of tyfon grown at maturity were as follows: crude protein 17.75 %; crude fiber 24.72 %; TDN 64.35 %.
6. No3-N content of tyfon is greatly affected by many factors such as the growth stage, nitrogen application and the location of leaves shooting from the growing point, etc. Generally, the average NO3-N content of tyfon is below 0.3 % and is within the range in which no problem exists for occurrence of nitrate poisoning. From the observation of the field trial of tyfon from 1983 to 1984, this new crop is considered one of the recommendable forages with higher growth, better yield, and higher feeding value under various environmental conditions in Hokkaido. Particularly, it seems cultivable, as well as on the rotation system with other upland crops and as a forage after the renovation of low productive grassland.
