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The BBCH-scale (rice) identifies the phenological development stages of rice ''Oryza sativa''. It is a plant species specific version of the BBCH-scale. 1 A leaf is unfolded when its ligule is visible or the tip of the next leaf is visible 2 Tillering or stem elongation may occur earlier than stage 13; in this case continue with stages 21 or 30 3 If stem elongation begins before the end of tillering continue with stage 30 4 Flowering usually starts before stage 55; continue with principal stage 6 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「BBCH-scale (rice)」の詳細全文を読む スポンサード リンク
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