Mechanized Production of F1 Seeds in Rice by Mixed Planting

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

F1 seed production of hybrid rice is practiced in Chine by planting a male sterile line and a pollinator line in alternative rows. This planting method is rather complicated and needs a great manpower. By mixing the seeds of a male sterile line and a pollinator line, mechanized cultivation is feasible for seed production. This method ensures a higher ratio of seed-set on the male sterile plants because the average distance between the pollinators and male sterile flowers becomes closer than that under the alternative-row method. The seeds are harvested in a mixed from of pollinator seeds and F1 seeds. Separation of the F1 seed from a mixed harvest could be made, if the F1 seeds are different from the pollinator seeds in color, size or other traits. If a female sterile pollinator is made available, F1 seeds are only harvested. Another possible method for separation is to incorporate a herbicide-sensitive gene to a pollinator, which should be subjected to a spray of the specific herbicide just after pollination: then all the harvests are F1 seeds only.

作成者 Kiyoaki MARUYAMA Hiroshi KATO Hitoshi ARAKI
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 243
終了ページ 252
言語 eng