J-GLOBAL ID:200904054834221588  Research Project code:0350010477 Update date:Dec. 09, 2002

System of best timing to harvest wheat for improving quality appropriate for a large scale of harvesting and arrangement: Development of method to predict generation of low amylo-wheat integrating weather factors in the cold region

大規模収穫・調製に適した品質向上のための小麦適期収穫システム 寒地における気象要因を組み込んだ低アミロ小麦の発生予測手法の開発
Study period:2002 - 2004
Research overview:
Wheat production in Hokkaido is 60 % of all domestic wheat, which quality is of great interest from the consumers. The machinery cultivation has been established, and big scale of cultivation has been achieved as large as in Europe, through cooperative use of harvesting machine and drying facilities, but encountered with irregular weather (low temperature and lots of rain) during the season of ripening and harvesting, such accidents of generation of low amylo-wheat caused by missing the best harvest time, followed by sprouting to lead to deteriorated quality happened. The appropriate term for harvesting of wheat in unit of city and town is 7 - 10 days based on monopolized species, requiring efficient management for combines and drying facilities Arrangement of the harvesting order has been conducted in a group of farmers depending on the past experience and the situation of concerned field, never conducted for whole regions, which functions as an obstacle to produce highly qualified wheat. In this research, in Tokachi areas where low amylo-wheat is said to arise very easily, the target is to develop reasonable harvesting system of good timing to produce highly qualified wheat and to develop the method to predict generation for low amylo-wheat, through analyzing influences of the weather conditions (rain, temperature, humidity) during the time of ripening to harvesting, on alpha-amylase activity conceivable of the factors to generate low amylo-wheat. More study is to be conducted to see if this procedure would work in other regions of different weather conditions. (Hokkaido Prefectural Tokachi Agricultural Experiment Station)

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