Abstract: A plunger pump includes a pump head assembly, which includes: a pump head body, a chamber in the pump head body; a liquid suction valve assembly, a liquid discharge valve assembly, and a separation sleeve for separating the liquid suction valve assembly from the liquid discharge valve assembly that are located in the chamber. The chamber includes: a liquid suction valve base mounting portion for mounting the liquid suction valve assembly, a separation sleeve mounting portion for mounting the separation sleeve, a liquid discharge valve base mounting portion for mounting the liquid discharge valve assembly, and a liquid suction chamber on a lower side of the liquid suction valve base mounting portion and in communication with an emulsion supply device by a pipeline.

Abstract: A plunger pump includes a pump head assembly, which includes: a pump head body, a chamber in the pump head body; a liquid suction valve assembly, a liquid discharge valve assembly, and a separation sleeve for separating the liquid suction valve assembly from the liquid discharge valve assembly that are located in the chamber. The chamber includes: a liquid suction valve base mounting portion for mounting the liquid suction valve assembly, a separation sleeve mounting portion for mounting the separation sleeve, a liquid discharge valve base mounting portion for mounting the liquid discharge valve assembly, and a liquid suction chamber on a lower side of the liquid suction valve base mounting portion and in communication with an emulsion supply device by a pipeline.

Abstract: Two PARMS-SNP molecular markers for identifying resistant gene VrTAF5 of Vigna radiata (Linn.) Wilczek Cercospora leaf spot disease are provided, which belongs to the field of molecular genetic breeding. The two molecular markers PARMS-1517 and PARMS-10010 include SNP sites located at the 32622352 and 32613913 bases of Vigna radiata (Linn.) Wilczek chromosome 6 respectively. 240 bp sequence before and after the PARMS-1517 is shown in SEQ ID NO.1, a 131st position is SNP site, and a polymorphism is A/C; 240 bp sequence before and after the PARMS-10010 is shown in SEQ ID NO.2, a 117th position is SNP site, and a polymorphism is A/G. The PARMS-SNP molecular markers have a high specificity, accurate and reliable detection results, which can be used for rapid identifying Vigna radiata (Linn.) Wilczek Cercospora leaf spot disease resistant varieties, molecular marker-assisted selective breeding, and shortening a breeding period.