Provided is a method for producing a rice F1 seed, including crossing a rice male sterile line of Koshihikari containing one or more genes selected from the group consisting of the sd1 gene, the Gn1 gene and the hd1 gene derived from Oryza sativa L. cultivar Habataki, or a rice male sterile line exhibiting semi-waxiness as a seed parent, with a rice fertility restorer line as a pollen parent, and collecting the first filial generation seed (F1 seed) from the post-crossing seed parent; and a rice male sterile line containing one or more genes selected from the group consisting of the sd1 gene, the Gn1 gene and the hd1 gene derived from Oryza sativa L. cultivar Habataki.

The present disclosure relates to a fertility gene and the use thereof, and relates to the biotechnology field, particularly to a method of plant hybrid breeding including creation of a sterile line and preparation of hybrid seeds, more particularly to a fertility gene FL2, a mutant thereof and use thereof in hybrid breeding.

A rice cultivar designated M-521 is disclosed. The invention relates to the seeds of rice cultivar M-521, to the plants of rice M-521 and to methods for producing a rice plant produced by crossing the cultivar M-521 with itself or another rice variety. The invention further relates to methods for producing a rice plant containing in its genetic material one or more transgenes and to the transgenic rice plants and plant parts produced by those methods. This invention also relates to rice cultivars or breeding cultivars and plant parts derived from rice cultivar M-521, to methods for producing other rice cultivars, lines or plant parts derived from rice cultivar M-521 and to the rice plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid rice seeds and plants produced by crossing the cultivar M-521 with another rice cultivar.

A rice cultivar designated CLHA02 is disclosed herein. The present invention provides seeds, plants, and plant parts derived from rice cultivar CLHA02. Further, it provides methods for producing a rice plant by crossing CLHA02 with itself or another rice variety and methods for combating undesired vegetation by contacting the disclosed rice seeds with an acetohydroxyacid synthase (AHAS)-inhibiting herbicide. The invention also encompasses any rice seeds, plants, and plant parts produced by the methods disclosed herein, including those in which additional traits have been transferred into CLHA02 through the introduction of a transgene or by breeding CLHA02 with another rice cultivar.

This invention describes a new method to generate rice seed. The process involves the delivery of pollen of the male parent at will, as available either in a preserved pollen bank, or using real-time collection from male plants as they become available. Desired pollen is delivered to fertile females during the period when viable pollen from the females and locally proximal unrelated plants is not being released. The delivered male pollen is in such amounts and fortuitously timed that it preferentially pollinates the females. Such fortuitous timing may involve the intentional application of pollen to females a day or two prior to female parent pollen becoming viable, and/or during several periods wherein female parent pollen and/or other proximal plant pollen is not being shed.

The present invention is directed toward rice lines containing mutant allele ROXY that exhibit non-transgenic resistance to the herbicide oxyfluorfen. The invention relates to the seeds, plants and plant parts of rice plants containing mutant allele ROXY and to methods for producing a rice plant by crossing rice plants containing mutant allele ROXY with itself or another rice cultivar. The invention further relates to methods for producing a rice plant containing mutant allele ROXY containing in its genetic material one or more transgenes and to the transgenic rice plants and plant parts produced by those methods. This invention also relates to rice cultivars or breeding cultivars and plant parts derived from rice plants containing mutant allele ROXY, to methods for producing other rice cultivars, lines or plant parts derived from rice plants containing mutant allele ROXY and to the rice plants, varieties, and their parts derived from the use of those methods. The invention further relates to transferring mutant allele ROXY to different genetic backgrounds.

Rice is described that is tolerant/resistant to herbicides, for example, ACCase inhibitors, and HPPD inhibitors, or both. For ACCase inhibitors, 2 different chromosome regions act synergistically in providing resistance/tolerance to the same herbicide class. Use of the herbicide resistant/tolerant rice for weed control and methods of producing tolerant/resistant rice are also disclosed.

A rice cultivar designated FRC-22 is disclosed. The invention relates to the seeds of rice cultivar FRC-22, to the plants of rice FRC-22 and to methods for producing a rice plant produced by crossing the cultivar FRC-22 with itself or another rice variety. The invention further relates to hybrid rice seeds and plants produced by crossing the cultivar FRC-22 with another rice cultivar. The invention further relates to methods for producing a rice plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other rice cultivars derived from rice cultivar FRC-22.

According to the invention, there is provided a novel rice cultivar, designated LSUAC Hi Protein Rice. LSUAC Hi Protein Rice has up to an average 53% improvement in protein content with levels averaging 11%. The variety is described as semi-dwarf, and very early maturing. The invention relates to the seeds of rice cultivar LSUAC Hi Protein Rice, to the plants of rice cultivar LSUAC Hi Protein Rice, to plant parts of rice cultivar LSUAC Hi Protein Rice, to methods for producing a rice cultivar by crossing the rice cultivar LSUAC Hi Protein Rice with another rice cultivar, and to methods for producing a rice cultivar containing in its genetic material one or more backcross conversion traits or transgenes and to the backcross conversion rice plants and plant parts produced by those methods.

A rice cultivar designated Diamond is disclosed. The invention relates to the seeds of rice cultivar Diamond, to the plants of rice cultivar Diamond, to plant parts of rice cultivar Diamond, and to methods for producing a rice plant produced by crossing rice cultivar Diamond with itself or with another rice variety. The invention also relates to methods for producing a rice plant containing in its genetic material one or more transgenes and to the transgenic rice plants and plant parts produced by those methods. This invention also relates to rice cultivars, or breeding cultivars, and plant parts derived from rice cultivar Diamond, to methods for producing other rice cultivars, lines or plant parts derived from rice cultivar Diamond, and to the rice plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid rice seeds, plants, and plant parts produced by crossing rice cultivar Diamond with another rice cultivar.