Verticillium wilt resistance: Strawberries resistant to verticillium wilt also show resistance to powdery mildew in plant disease studies
Author AffiliationsStephen Wilhelm is Associate Professor of Plant Pathology, University of California, Berkeley.
Hilgardia 9(9):8-15. DOI:10.3733/ca.v009n09p8. September 1955.
Resistance to the Verticillium disease of strawberry occurs in a few varieties such as Sierra, Blakemore, and Marshall, in some breeding stocks, and in some forms of Fragaria chiloensis, one of the progenitors of the present-day large-fruited strawberry.
Also in this issue:Milk delivery costs and pricing: Adequacy in reflecting cost differences, simplicity in both application and enforcement vital factors in pricing systems
Use of pest control chemicals: Public law No. 518 effective July 22, 1955, of concern to all growers, shippers using pesticide chemicals on farm products
Minor nutrients of citrus: Effects of phosphorus fertilization on the minor element nutrition of citrus studied with three types of soil series
New soil fumigant: Increased growth of crop plants with weed killer of low toxicity to humans
Double-flowered column stocks: Genetic crossover responsible for breakdown in percentage of doubles produced by succeeding generations of parent variety
Almond varieties on plum roots: Plum rootstocks being tested for suitability to almonds in wet areas or in soils infected with oak root fungus
Effective use of living shade: Studies show how selection and location of trees and shrubs can reduce extremes of summer temperatures in living areas
Citrus collection for research: Citrus relatives, species, varieties, strains, and hybrids provide materials for research on problems of citriculture
Potassium and lemon fruit size: Larger sizes obtained in soil cultures when potassium was increased and calcium decreased in laboratory experiments
New mite predators: Four species from Guatemala show promise in southern California.
Factors influencing the effectiveness of sodium chlorate as a herbicide
The toxicity of sodium arsenite and sodium chlorate in four California soils