AGRIC
Vol. 25 No. 1 (2013)

PENGARUH VARIETAS, PEROMPESAN DAUN, DAN PENYEMPROTAN FUNGISIDA TERHADAP INTENSITAS PENYAKIT KARAT (Puccinia horiana P. Henn.) PADA TANAMAN KRISAN (Dendranthema grandiflora Tzvelev)

E Silvia Yusuf (Balai Penelitian Tanaman Hias)
- Suhardi (Balai Penelitian Tanaman Hias)

Article Info

Publish Date
03 Feb 2016

Abstract

Puccinia horiana P. Henn. is the pathogen which caused of white rust on chrysanthemum. It is the most serious disease on chrysanthemum. Study on the effect of varieties, defoliation, and fungicide application against rust diseases (Puccinia horiana) was carried out under plastic house of Institute of Ornamental Crop Research at Segunung (alt. 1100 m asl) from July - November 2008, using Split-split plot design in three (3) replications. The main plot was chrysanthemum cultivar (cv. ILK.6B1, cv. Giant and cv. Cat eye); sub-plot was defoliation and sub-sub plot was application of fungicide. The results indicated that a) cv. Cat Eye, cv. ILK.6B1 (aster/Reagent) and cv. Giant were resistant, moderately resistant, and susceptible against rust caused by Puccinia horiana respectively; b) defoliation was able to reduce disease intensity of rust as much as 44 percent at the beginning, but only 3-21 percent on the further observations; c) fungicide application was able to reduce disease intensity as much as 20-49 percent; d) defoliation and fungicide application did not significantly influence the number of flowers, plant height and flower diameter.

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Journal Info
AGRIC
Website

Abbrev

agric

Publisher

Universitas Kristen Satya Wacana

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Social Sciences

Description

AGRIC Journal of Agricultural Science is a peer-reviewed and published two times a year by Agriculture and Business Faculty of Universitas Kristen Satya Wacana. Agric journal publishes original articles on agronomy, horticulture, plant breeding, plant science, pest or diseases of plant, agriculture ...