クワイ(Sagittaria trifolia L.)の品種内および品種問交雑後代における形態形質の変異

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タイトル別名
  • Variation of Morphological Characters in the Progenies Derived from Intra- and Inter-varietal Crosses of Chinese Arrowhead (Sagittaria trifolia L.).

説明

Chinese arrowhead (Sagittaria trlfolia L.), an aquatic plant, is a tuber crop, cultivated in paddy fields in East Asia. In Japan, there are only three cultival varieties, 'Aokuwai', 'Shirokuwai' and 'Suitakuwai'. 'Aokuwai' is the most popular in most areas of the country because of the good quality in tuber shape and color. But, this variety shows low yield and has a slightly bitter taste. On the other hand, 'Shirokuwai' shows high yield but the tuber shape and tuber color are not good for market sale . 'Suitakuwai' produces tubers with good taste, but the tubers are too small to be sold. Therefore, 'Shirokuwai' and 'Suitakuwai' are considered to be useful gene sources to improve 'Aokuwai'. To gather fundamental data for the breeding of 'Aokuwai', diallel crosses were made among the three varieties and the F1 hybrids were raised. The morphological characters were investigated in the parents and F1 hybrids in this experiment.

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