Phytophthora rot of alpine delphinium caused by Phytophthora sp. kelmania

2022 ◽  
Author(s):  
Toru Kondo ◽  
Kayoko Otsubo ◽  
Koji Kageyama
Keyword(s):  
Phytophthora Rot

Recurrent Selection for Tolerance to Phytophthora Rot in Soybean 1

Crop Science ◽  
1984 ◽  
Vol 24 (3) ◽  
pp. 495-497 ◽  
Author(s):  
A. K. Walker ◽  
A. F. Schmitthenner
Keyword(s):  
Recurrent Selection ◽  
Selection For ◽  
Phytophthora Rot

Evidence of Pathogen Specificity in Tolerance of Soybean Cultivars to Phytophthora Rot

Crop Science ◽  
1988 ◽  
Vol 28 (4) ◽  
pp. 714-715 ◽  
Author(s):  
P. R. Thomison ◽  
C. A. Thomas ◽  
W. J. Kenworthy ◽  
M. S. McIntosh
Keyword(s):  
Soybean Cultivars ◽  
Phytophthora Rot

scholarly journals Protection of potatoes from phytophthora rot

2016 ◽  
pp. 21-24
Author(s):  
A.A. Zubarev ◽  
◽  
V.I. Каrgin ◽  
A.A. Еroeyev ◽  
◽  
...  
Keyword(s):  
Phytophthora Rot

Identification and Utilization of Variation in Herbicide Tolerance in Soybean (Glycine max) Breeding

Weed Science ◽  
1987 ◽  
Vol 35 (S1) ◽  
pp. 4-8 ◽  
Author(s):  
Edgar E. Hartwig
Keyword(s):  
Glycine Max ◽  
Herbicide Tolerance ◽  
Growing Season ◽  
Eastern Asia ◽  
Phytophthora Megasperma ◽  
Breeding Lines ◽  
Yield Variation ◽  
Phytophthora Rot ◽  
High Level ◽  
Over The Top

Herbicides marketed for selected crops were chosen on the basis that major cultivars of the specific crop were tolerant. Our work with soybeans [Glycine max(L.) Merr.] has demonstrated that variability exists with regard to sensitivity or tolerance to several herbicides. As a part of our breeding program to develop improved soybean cultivars, we have evaluated advanced breeding lines and germplasm for reaction to herbicides on the market as well as experimental herbicides. A breeding line was identified and released for production which showed very little injury from two over-the-top applications of a double rate of 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid]. Other strains showed severe injury and depressed seed yield. Variation in reaction to glyphosate [N-(phosphonomethyl)glycine] has been observed. Lines tolerant to 0.56 kg ai/ha in one growing season were severely damaged the following season. When 200 germplasm lines from eastern Asia were treated with glyphosate, 6% showed less than 15% injury while 21% showed over 80% injury. The cultivar ‘Tracy′, selected for tolerance to 2,4-DB and a high level of resistance to the soil-borne disease causing phytophthora rot, was found to be sensitive to metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one]. Tracy has two major genes controlling resistance to phytophthora rot caused byPhytophthora megaspermaDrechs. f. sp.glycineaKuan and Erwin. One of these genes is closely linked with a gene controlling reaction to metribuzin. A crossover type was identified. The cultivar ‘Tracy-M’ retains the high level of resistance to phytophthora rot and is tolerant to metribuzin. A small percentage of germplasm lines evaluated were found to be sensitive to bentazon. Reaction to bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] is simply inherited.

scholarly journals First report of Phytophthora rot of ginger (Zingiber officinale) caused by Phytophthora citrophthora in Japan.

2011 ◽  
Vol 77 (4) ◽  
pp. 299-303
Author(s):  
M. YAMAZAKI ◽  
H. MATSUOKA ◽  
K. YANO ◽  
Y. MORITA ◽  
S. UEMATSU ◽  
...  
Keyword(s):  
Zingiber Officinale ◽  
Phytophthora Citrophthora ◽  
First Report ◽  
Phytophthora Rot

scholarly journals Phytophthora Rot of Soybean

2000 ◽  
Vol 1 (1) ◽  
pp. 13 ◽  
Author(s):  
A. F. Schmitthenner
Keyword(s):  
Soil Type ◽  
Integrated Control ◽  
Stem Rot ◽  
High Tolerance ◽  
Soybean Cultivars ◽  
Causal Fungus ◽  
Important Host ◽  
Plant Stand ◽  
Phytophthora Rot ◽  
Cultivar Susceptibility

Phytophthora root and stem rot may cause plant stand losses and complete yield reductions in very susceptible soybean cultivars. The severity of losses depends on cultivar susceptibility, rainfall, soil type, tillage, and compaction. Soybean is the only important host of the causal fungus. Integrated control, which combines high tolerance, improved drainage, and tillage, is as effective as resistance or fungicides in most soil environments. Posted 1 June 2000.

Inheritance and Linkage of theRps7Gene for Resistance to Phytophthora Rot of Soybean

Plant Disease ◽  
1992 ◽  
Vol 76 (9) ◽  
pp. 958 ◽  
Author(s):  
T. R. Anderson
Keyword(s):  
Phytophthora Rot
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