a Study of cross protection of three varieties of tomato to pseudomonas salanacearum

Date

4-1969

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Ruben L. Villareal

Co-adviser

Flor Quebral

Abstract

Cross protection reduces subsequent severity of infection by Pseudomonas solanacearum in three varieties of tomato. However, it does not reduce the number of infections in plants but only the intensity of the disease. From five periods of time interval used between two inoculation (mild strain followed by virulent strain) namely 24, 15, 12, 8, and 5 hours, the longest time interval is best.

Abaca strain of Pseudomonas solanacearum reduce the severity of infection of tomato and pepper strains of Pseudomonas solanacearum better than ginger strain.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1969 A42 S26

Document Type

Thesis

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