Effect of High Temperatures in Summer on the Growth
Xin Shu Zheng, Hirosi Endo and Yozi Sakaida
The number of people concerned about health issues has been increasing in recent years. This is reflected in a changing trend in eating habits towards the consumption of more vegetables. Paprika (Capsicum annuum Longum Group) is a vegetable that comes to mind when thinking of health issues owing to the fact that it contains a lot of vitamin C and ß-carotene, a precursor for vitamin A. The demand for paprika from markets has been increasing, however, its domestic production is still not sufficient. The excess demand is met through imports from The Netherlands, Korea, New Zealand, and other countries.
There are several reasons that account for this low domestic production. Cultural methods have not yet been established to fit our natural conditions, such as climatic factors, in Japan. Climatic conditions in this country differ from that of the countries mentioned as suppliers. The hot weather in summer seems to be an especially limiting factor for cultivation. Our aim was, therefore, to
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