The peroxidase test as a tool in the selection of potato varieties resistant to late blight

1959 ◽  
Vol 36 (9) ◽  
pp. 315-324 ◽  
Author(s):  
N. Kedar(Kammermann)
Keyword(s):  
Late Blight ◽  
Potato Varieties ◽  
Selection Of

scholarly journals Demystification of GM crop costs: releasing late blight resistant potato varieties as public goods in developing countries

2016 ◽  
Vol 14 (2) ◽  
pp. 112 ◽  
Author(s):  
Benjamin Schiek ◽  
Guy Hareau ◽  
Yona Baguma ◽  
Akshat Medakker ◽  
David Douches ◽  
...  
Keyword(s):  
Developing Countries ◽  
Late Blight ◽  
Public Goods ◽  
Gm Crop ◽  
Potato Varieties

scholarly journals Alternaria Late Blight (Alternaria alternata) Resistance in Pistachio (Pistacia vera) and Selection of Resistant Genotypes

2001 ◽  
Vol 126 (4) ◽  
pp. 481-485 ◽  
Author(s):  
Chih-Cheng T. Chao ◽  
Dan E. Parfitt ◽  
Themis J. Michailides
Keyword(s):  
Late Blight ◽  
Alternaria Alternata ◽  
Pistacia Vera ◽  
Narrow Sense ◽  
Cultivar Selection ◽  
Resistant Genotypes ◽  
Selection Of

Pistachio (Pistacia vera L.) progeny were evaluated at two locations in California for resistance to alternaria late blight caused by Alternaria alternata (Fries) Keissler in 1995 and 1997. Large differences in alternaria late blight infection among seedlings were observed. Narrow sense heritabilities based on half-sib analysis of 20 open pollinated families were 0.48 and 0.11 at Kearney Agricultural Center in 1995 and 1997, respectively, and 0.56 and 0.54 at the Wolfskill Experimental Orchard near Davis in 1995 and 1997, respectively. Differences among families to alternaria late blight infection were highly significant and associated with the female parents. Fifty-eight highly resistant seedlings were identified for future cultivar selection efforts.

scholarly journals Evaluation of the Ph‐3 gene‐specific marker developed for marker‐assisted selection of late blight‐resistant tomato

2016 ◽  
Vol 135 (5) ◽  
pp. 636-642 ◽  
Author(s):  
Ya‐Ying Wang ◽  
Chien‐Hua Chen ◽  
Annika Hoffmann ◽  
Yun‐Che Hsu ◽  
Shu‐Fen Lu ◽  
...  
Keyword(s):  
Late Blight ◽  
Marker Assisted Selection ◽  
Specific Marker ◽  
Selection Of

scholarly journals Comparison of Late Blight Resistance and Yield of Potato Varieties

2013 ◽  
Vol 67 (3) ◽  
pp. 254-258
Author(s):  
Terje Tähtjärv ◽  
Aide Tsahkna ◽  
Sirje Tamm
Keyword(s):  
Late Blight ◽  
Organic Farming ◽  
Late Blight Resistance ◽  
Blight Resistance ◽  
Infection Level ◽  
New Variety ◽  
Early Variety ◽  
Potato Varieties ◽  
Effective Strategies ◽  
Plant Breeding Institute

Growing more resistant potato varieties is one of the most effective strategies to control late blight, to protect potato yield and to prevent harming the environment. The main aim of our study was to identify potato varieties with higher resistance to late blight and which were high yielding in Estonian conditions and suitable for organic farming. During the three-year trial, twelve potato varieties were tested at the Jõgeva Plant Breeding Institute (PBI) in 2010-2012. Foliage late blight (Phytophtora infestance (Mont) de Bary) and yield were estimated. First infection of late blight occurred in different times during the trial years. The three-year average infection level indicated that early varieties ‘Arielle’, ‘Impala’ and ‘Princess’ were more damaged than other varieties in the first estimation. Late varieties ‘Ando’, ‘Anti’, ‘Juku’ and ‘Sarme’ had higher late blight resistance. Their foliage damage remained less than 30% in the last estimation. The new medium variety ‘Teele’ had a lower infection rate than other medium varieties and did not significantly differ from late varieties. Based on these data, late varieties, early variety ‘Maret’ and medium variety ‘Teele’ can be considered suitable for organic farming. The new variety ‘Teele’ had the highest threeyear average tuber yield (52.8 t ha-1). Varieties ‘Impala’, ‘Princess’ and ‘Secura’ had significantly lower yield. Yield loss of these varieties might have been caused by higher late blight infection during trial years

Resistance of some American potato varieties to the late blight of potatoes

1953 ◽  
Vol 30 (3) ◽  
pp. 65-70 ◽  
Author(s):  
L. C. Peterson ◽  
W. R. Mills
Keyword(s):  
Late Blight ◽  
Potato Varieties

The use of sensory attributes, sugar content, instrumental data and consumer acceptability in selection of sweet potato varieties

2012 ◽  
Vol 93 (7) ◽  
pp. 1610-1619 ◽  
Author(s):  
Sunette M Laurie ◽  
Mieke Faber ◽  
Frikkie J Calitz ◽  
Erika I Moelich ◽  
Nina Muller ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Sugar Content ◽  
Sensory Attributes ◽  
Consumer Acceptability ◽  
Instrumental Data ◽  
Potato Varieties ◽  
Selection Of

Identification and Screening of Introduced Tomato Varieties Resistant to late Blight

2012 ◽  
Vol 610-613 ◽  
pp. 3472-3477
Author(s):  
Dan Luo ◽  
Xi Chun Zhang ◽  
Xiao Han Wen
Keyword(s):  
Late Blight ◽  
Phytophthora Infestans ◽  
New Disease ◽  
Tomato Production ◽  
Disease Resistant ◽  
Resistant Varieties ◽  
Detached Leaves ◽  
Late Blight Disease ◽  
Blight Disease ◽  
Selection Of

Tomato late blight disease that infected by Phytophthora infestans (Mont.) de Bary has already become one of the main obstacles that influence the tomato production. To resolve tomato late blight disease, cultivating the disease-resistant breed is importance. Based on the previous study, different introduced varieties were used as materials in this test for the identification and varieties selection of tomato resistant to late blight, by measuring the DIS of inoculated seedlings and detached leaves. It indicated that Jingle 502 and O-33-1 are possible to become resistant varieties to late blight or the parents for cultivating new disease resistant varieties.

scholarly journals Optimizing Plant Disease Management in Agricultural Ecosystems Through Rational In-Crop Diversification

2021 ◽  
Vol 12 ◽  
Author(s):  
Yan-Ping Wang ◽  
Zhe-Chao Pan ◽  
Li-Na Yang ◽  
Jeremy J. Burdon ◽  
Hanna Friberg ◽  
...  
Keyword(s):  
Late Blight ◽  
Host Resistance ◽  
Control Plant ◽  
Late Blight Resistance ◽  
Plant Diseases ◽  
Crop Diversification ◽  
Agricultural Ecosystems ◽  
Potato Varieties ◽  
Plant Disease Management ◽  
Disease Epidemics

Biodiversity plays multifaceted roles in societal development and ecological sustainability. In agricultural ecosystems, using biodiversity to mitigate plant diseases has received renewed attention in recent years but our knowledge of the best ways of using biodiversity to control plant diseases is still incomplete. In term of in-crop diversification, it is not clear how genetic diversity per se in host populations interacts with identifiable resistance and other functional traits of component genotypes to mitigate disease epidemics and what is the best way of structuring mixture populations. In this study, we created a series of host populations by mixing different numbers of potato varieties showing different late blight resistance levels in different proportions. The amount of naturally occurring late blight disease in the mixture populations was recorded weekly during the potato growing seasons. The percentage of disease reduction (PDR) in the mixture populations was calculated by comparing their observed late blight levels relative to that expected when they were planted in pure stands. We found that PDR in the mixtures increased as the number of varieties and the difference in host resistance (DHR) between the component varieties increased. However, the level of host resistance in the potato varieties had little impact on PDR. In mixtures involving two varieties, the optimum proportion of component varieties for the best PDR depended on their DHR, with an increasing skewness to one of the component varieties as the DHR between the component varieties increased. These results indicate that mixing crop varieties can significantly reduce disease epidemics in the field. To achieve the best disease mitigation, growers should include as many varieties as possible in mixtures or, if only two component mixtures are possible, increase DHR among the component varieties.

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