Abstract: The present application discloses a plant senescence accelerator named IDL7 mature polypeptide, and its preparation method and an application thereof. The application belongs to the field of a plant senescence accelerator, and the IDL7 mature polypeptide serves as a major functional ingredient with the following amino acid sequence: F-G-S-L-V-L-N-A-L-P-K-G-S-R-P-G-S-G-P-S-K-K-T-N. The IDL7 mature polypeptide plant senescence accelerator may promote the leaf senescence of plants without other additional adverse manifestations, thus this application has strong field operability.

Abstract: The present application an IDL6 mature polypeptide plant aging promoter, and a preparation method and application thereof, belonging to the field of plant aging promoters. The IDL6 mature polypeptide plant aging promoter is with an IDL6 mature polypeptide as a main functional component, and the IDL6 mature polypeptide having the following amino acid sequence: F-G-S-L-V-L-N-A-L-P-K-G-S-V-P-A-S-G-P-S-K-R-I-N. The provided plant aging promoter can promote the leaf senescence of the plant, accelerate the senescence, and has no other additional bad performance, and has extremely strong field operability.

Abstract: The present application provides an application of quercetin in a plant senescence accelerator, which belongs to the field of plant senescence accelerators and its application, and can prepare a plant senescence accelerator by using quercetin and apply the accelerator in practical production to accelerate the senescence process of plant particularly crop leaves. The quercetin plant senescence accelerator is prepared by mixing a quercetin mother solution with a 1/2 MS solution of 2-(N-morpholino)ethanesulfonic. In the present application, by adopting directly spraying method, the senescence process of plant leaves can be accelerated, and will not cause additional adverse reactions to plants.

Abstract: The present application provides an application of quercetin in a plant senescence accelerator, which belongs to the field of plant senescence accelerators and its application, and can prepare a plant senescence accelerator by using quercetin and apply the accelerator in practical production to accelerate the senescence process of plant particularly crop leaves. The quercetin plant senescence accelerator is prepared by mixing a quercetin mother solution with a 1/2 MS solution of 2-(N-morpholino)ethanesulfonic. In the present application, by adopting directly spraying method, the senescence process of plant leaves can be accelerated, and will not cause additional adverse reactions to plants.