Abstract: A mutation site of an ideal brittle culm mutant ibc in rice, a controlling gene IBC, and use thereof are provided. The controlling gene IBC has: (1) a nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 2; or (2) a nucleotide sequence of a mutant, an allele, or a derivative generated by adding, substituting, inserting or deleting one or more nucleotides. The present disclosure further provides an encoded protein of the controlling gene IBC, a recombinant construct, a recombinant host cell, a method for embrittling culms in a rice ripening stage by using the controlling gene IBC, and use thereof. In a mutant with allelic variation in the gene IBC and loss of gene editing function, culms exhibit a brittle culm phenotype at the late ripening stage, leaves are not brittle, yield traits are excellent, and other agronomic traits are not obviously changed.

Abstract: A mutation site of an ideal brittle culm mutant ibc in rice, a controlling gene IBC, and use thereof are provided. The controlling gene IBC has: (1) a nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 2; or (2) a nucleotide sequence of a mutant, an allele, or a derivative generated by adding, substituting, inserting or deleting one or more nucleotides. The present disclosure further provides an encoded protein of the controlling gene IBC, a recombinant construct, a recombinant host cell, a method for embrittling culms in a rice ripening stage by using the controlling gene IBC, and use thereof. In a mutant with allelic variation in the gene IBC and loss of gene editing function, culms exhibit a brittle culm phenotype at the late ripening stage, leaves are not brittle, yield traits are excellent, and other agronomic traits are not obviously changed.

Abstract: The lighting apparatus includes a light source module, a light style switch, a driver circuit and a light style unit. The light source module has multiple types of LED modules. The light style switch is used for selecting from a set of predetermined light styles. Each predetermined light style corresponds to multiple parameters of an output light to be generated by the light source module. The light style unit is connected to the light style switch for providing the multiple parameters corresponding to the selected predetermined light style to the driver circuit to generate a corresponding control signal to control the light source module.