Chemistry: molecular biology and microbiology – Treatment of micro-organisms or enzymes with electrical or... – Modification of viruses
Patent
1990-07-11
1992-10-27
Weimar, Elizabeth C.
Chemistry: molecular biology and microbiology
Treatment of micro-organisms or enzymes with electrical or...
Modification of viruses
47 58, 47DIG1, 800200, 800250, 800DIG57, A01H 100, A01G 1600
Patent
active
051588790
ABSTRACT:
An improved process for the economical production of F.sub.1 hybrid Oryza sativa plants (i.e., hybrid rice plants of the first filial generation) is provided. Novel female fertile male sterile rice plants which are perennial and capable of retaining viability through the winter are planted in combination with annual female fertile male fertile restorer plants which are killed during the winter. Accordingly, the substantial expense of establishing the required male sterile plants at the beginning of each growing season effectively is eliminated. The seeds formed on the perennial male sterile plants are capable of forming annual male fertile F.sub.1 hybrid Oryza sativa plants. In preferred embodiments additional properties are incorporated into the parent rice plants (as described) which further enhance the F.sub.1 seed production.
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Calub Alfonso G.
Qinxiu Li
Benzion Gary
Ring Around Products, Inc.
Weimar Elizabeth C.
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