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You searched for: Journal Southern forests Remove constraint Journal: Southern forests Publication Year 2014 Remove constraint Publication Year: 2014 Subject Fusarium circinatum Remove constraint Subject: Fusarium circinatum
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1. Culture-independent detection and quantification of Fusarium circinatum in a pine-producing seedling nursery

Author:
Gerda Fourie; Michael J Wingfield; Brenda D Wingfield; Nicky B Jones; Andrew R Morris; Emma T Steenkamp
Source:
Southern forests 2014 v.76 no.3 pp. 137-143
ISSN:
2070-2639
Subject:
Fusarium circinatum; conidia; dieback; forests; fungicides; inoculum; insect control; mortality; pathogens; quantitative polymerase chain reaction; root crown; sanitation; seedlings; shoots
Abstract:
... The primary symptoms associated with Fusarium circinatum infection in pine seedling nurseries are root and collar rot, shoot and tip die-back and seedling mortality. Management of this pathogen in nurseries usually involves the integration of various strategies relating to sanitation, insect control and fungicide treatment. The overall goal of this study was to use quantitative real-time PCR (qPCR ...
DOI:
10.2989/20702620.2014.899058

2. Genetic parameters for Fusarium circinatum tolerance within openpollinated families of Pinus patula tested at screening facilities in South Africa and the USA

Author:
Andre Nel; Gary R Hodge; Kgosi E Mongwaketsi; Arnulf Kanzler
Source:
Southern forests 2014 v.76 no.3 pp. 145-150
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; breeding; crops; forests; fungi; genetic variation; greenhouses; hygiene; mortality; open pollination; screening; seedlings; trees; South Africa; United States
Abstract:
... The pine pitch canker fungus, Fusarium circinatum , has caused large-scale mortality of Pinus patula Schiede & Deppe ex Schltdl. & Cham. crops in South African nurseries. This disease is now managed with strict hygiene practices and mortality in commercial nurseries has been drastically reduced. During the last 10 years, however, the disease started to manifest in the field, impacting on post-plan ...
DOI:
10.2989/20702620.2014.916500

3. Re-use of seedling containers and Fusarium circinatum association with asymptomatic Pinus patula planting stock

Author:
Andrew R Morris; Gerda Fourie; Izette Greyling; Emma T Steenkamp; Nicoletta B Jones
Source:
Southern forests 2014 v.76 no.3 pp. 177-187
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; containers; control methods; crops; discoloration; forests; hygiene; inoculum; mortality; open pollination; pathogens; planting; root systems; sanitation; screening; seedling growth; seedlings; steam; Southern Africa
Abstract:
... Fusarium circinatum is a pathogen causing serious post-planting mortality of Pinus patula seedlings in southern Africa. Containerised planting stock that is asymptomatic but associated with F. circinatum in the nursery is thought to be the cause of this problem. The aim of this study was to determine if re-use of seedling containers could be a source of inoculum resulting in asymptomatic planting ...
DOI:
10.2989/20702620.2014.957491

4. Association of the pitch canker pathogen Fusarium circinatum with grass hosts in commercial pine production areas of South Africa

Author:
Cassandra L Swett; Bernice Porter; Gerda Fourie; Emma T Steenkamp; Thomas R Gordon; Michael J Wingfield
Source:
Southern forests 2014 v.76 no.3 pp. 161-166
ISSN:
2070-2639
Subject:
Briza maxima; DNA; Ehrharta; Fusarium circinatum; Pinus; Pseudotsuga menziesii; disease occurrence; endophytes; forests; fungi; grasses; host range; hosts; inoculum; nucleotide sequences; pathogens; plantations; sanitation; virulence; California; South Africa
Abstract:
... The pitch canker pathogen, Fusarium circinatum , has major impacts on production in pine nurseries and plantations in South Africa. Thus far, efforts to reduce local spread have focused on rouging of infected pines and sanitation to eliminate local sources of inoculum. Although the host range of F. circinatum was thought to be limited to pines and Douglas-fir, recent studies in California indicate ...
DOI:
10.2989/20702620.2014.916087

5. Comparison of the tolerance of Pinus patula seedlings and established trees to infection by Fusarium circinatum

Author:
R Glen Mitchell; Michael J Wingfield; Emma T Steenkamp; Jolanda Roux; Steven Verryn; Teresa A Coutinho
Source:
Southern forests 2014 v.76 no.3 pp. 151-159
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; clones; foresters; forests; greenhouse experimentation; greenhouses; open pollination; pathogens; screening; seedlings; seeds; trees; South Africa
Abstract:
... Since the first appearance of Fusarium circinatum in South Africa in 1990, foresters have been challenged with poor field survival of Pinus patula seedlings at establishment. One of the best long-term solutions is to improve the genetic tolerance of P. patula to infection by the pathogen. Currently, large numbers of families are routinely screened for their tolerance to F. circinatum by infecting ...
DOI:
10.2989/20702620.2014.899061

6. Effect on nursery and field performance of Pinus patula seedlings after inoculation with Fusarium circinatum

Author:
Nicoletta B Jones; Craig M Ford; Marnie E Light; Ryan L Nadel; Izette Greyling; Gerda Fourie; Michael J Wingfield; Andrew R Morris
Source:
Southern forests 2014 v.76 no.3 pp. 125-136
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; forestry; forests; fungi; inoculum; mortality; pathogens; plant establishment; seedlings; water stress; South Africa
Abstract:
... Fusarium circinatum is an important fungal pathogen of Pinus species. In South Africa, it is the most significant pathogen of Pinus patula seedlings in forestry nurseries where it presents a substantial constraint to productivity and can continue to cause mortality in-field for up to two years after establishment. This study describes the results from two trials where P. patula seedlings were inoc ...
DOI:
10.2989/20702620.2014.916503

7. Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum

Author:
Craig M Ford; Nicoletta B Jones; Paxie WC Chirwa
Source:
Southern forests 2014 v.76 no.3 pp. 167-175
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; Pinus tecunumanii; bags; bark; forests; growing media; hybrids; hydroponics; mortality; pathogens; sand; vegetative propagation; South Africa
Abstract:
... In response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum- tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of these taxa in two vegetative propagation systems, hydroponic sand beds and polythene bags with composted pine bark growing medium. Signif ...
DOI:
10.2989/20702620.2014.916501