Mechanized Production of F1 Seeds in Rice by Mixed Planting

Japan Agricultural Research Quarterly
ISSN 00213551
NII recode ID (NCID) AA0068709X
Full text

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.

Date of issued
Creator Kiyoaki MARUYAMA Hiroshi KATO Hitoshi ARAKI
Available Online
NII resource type vocabulary Journal Article
Volume 24
Issue 4
spage 243
epage 252
Language eng

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