Cultivation method for inhibiting pericarp rust spots of P. pyrifolia Nakai

Abstract

The invention relates to a cultivation method for inhibiting pericarp rust spots of P. pyrifolia Nakai, which comprises the steps of conducting pest and disease control; carrying out physical cleaningon the surface of young fruits; forming a biological protective film on the young fruits of P. pyrifolia Nakai; and performing fertilizer and water management in the later period of fruit development. The cultivation method is significant in inhibition effect for the pericarp rust spots of P. pyrifolia Nakai. The foxiness index of the pericarp of P. pyrifolia Nakai obtained according to the method is reduced by 70%-80% than the foxiness index of the pericarp of open field rust spot P. pyrifolia Nakai, the cleanliness of the pericarp is significantly improved, and the appearance quality is greatly improved, thereby solving the defect that the poor appearance of rust spot P. pyrifolia Nakai varieties affects the commercial value of the fruit. The cultivation method is low in cost and convenient to master, and provides a reference basis for improving the appearance quality of excellent pear varieties.

Description

technical field [0001] The invention belongs to the technical field of pear tree cultivation, and in particular relates to a cultivation method for suppressing the rust spots on the peel of sand pears. Background technique [0002] Sand pear (P.pyrifolia Nakai) is mainly distributed in China, Japan, Korea and other countries, and it is the only oriental pear as a cultivated species in countries other than East Asia. [0003] Sand pear (P.pyrifolia Nakai) peel appearance is divided into three types: full rust, half rust (partial rust color) and green. The rust spots on the exocarp of pears are not caused by pigment, but are the result of accumulation of cork layer after pears are damaged by high humidity, diseases and insect pests, chemical agents, etc., and the cuticle and epidermal cells are defective. [0004] 'Cuiguan' pear is a well-known semi-rusted sand pear variety. It has outstanding quality, but the outer skin is rough and covered with mottled brown rust spots, so ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of cultivation method for suppressing the rust spots of sand pear pericarp, which improves the traditional method of reducing rust spots by bagging, and takes continuous measures to suppress the rust spots on the fruit surface of sand pears from the young fruit stage to the fruit maturity stage. While ensuring the internal quality of the fruit, it greatly improves the cleanliness of the fruit, effectively breaks through the bottleneck of the poor appearance of the semi-rust sand pear, which leads to the decline in its commerciality, and effectively solves the problem of poor stability when using traditional technologies to reduce rust spots.

Images