[Changing characteristics of growth stage of rice in local environment and its evaluation]
1991
Kim, H.G. (Pyonganbukdo Inst. for Agricultural Science, Jongju (Korea Democratic People's Republic))
The rice heading date following the solar energy and area could be changed by the temperature condition, not by cultivation condition. The change of heading date refers to the solar energy condition in our country, especially, though same condition of transplanting seedlings, it was changed by the difference of reproductive growth period, little by vegetative growth period. The growth stage could be evaluated correctly by following the transplanting seedling period from the first date of 15 deg C to the date of nearly same accumulated temperature value by days, without consideration of solar and energy area
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