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The most recent research finding on the tolerance of fruit trees to cold stress are reviewed from a molecular perspective, including the perception and transduction of low temperature calcium signaling, CBF-dependent molecular regulatory mechanisms, non-CBF-dependent molecular regulatory mechanisms, and so forth. The objective is to provide a reference basis for further improving the cold resistance of fruit trees and cultivating new varieties of hardy plants. [ABSTRACT FROM AUTHOR]

Aiming at high cost and low efficiency of conventional branch bending method in the modern intensive planting and labor-saving cultivation mode of young pear trees, this paper provides a new branch bending method with wide source of raw materials, cheap price and simple operation, which is also suitable for the management of low-age branches in the process of high grafting and upgrading of traditional big trees. [ABSTRACT FROM AUTHOR]

In recent years, pear rust sometimes occurs in eastern Hebei area, resulting in early defoliation, fruit abscission and loss of fruit commodity value. In this paper, the incidence symptoms, regularity and causes of pear rust are summarized, and the comprehensive prevention and control measures of pear rust in eastern Hebei are put forward. [ABSTRACT FROM AUTHOR]

Due to the lack of attention to the prevention and control of powdery mildew in pear orchard in autumn, the occurrence of pear powdery mildew is aggravating year by year, and it has become one of the main diseases of pear tree. In this paper, the symptom diagnosis, incidence regularity and prevention and control technology of pear powdery mildew are summarized, which will provide the reference for prevention and treatment of pear powdery mildew in production. [ABSTRACT FROM AUTHOR]