Pennsylvania is the fourth-largest Christmas-tree-producing state in the United States, with annual sales of more than $22 million. During the summers of 2018 and 2019, a rust disease was observed on the leaves of balsam fir, Canaan fir, white fir, and sensitive fern in a Christmas tree ...
Single, dominant resistance genes have been used successfully for the past 15 years to control common rust, caused by Puccinia sorghi, on sweet corn in the United States. Most sweet corn hybrids grown in the Midwest for mid- to late-seas... JK Pataky,WF Tracy - 《Plant Disease》 被引量...
b.A plant disease caused by a rust fungus, characterized by reddish or brownish spots on leaves, stems, and other parts. 4.A strong brown. v.rust·ed,rust·ing,rusts v.intr. 1.To become corroded. 2.To deteriorate or degenerate through inactivity or neglect:My golf game has rusted from...
Iron rust is caused by electrolytic action between the various constituents of iron or steel in the presence of moisture and impurities. It is a continuous process; a coating of rust does not protect the metal underneath. ET Birdsall - 《Coatings Colorants & Finishes》 被引量: 1发表: 1919年...
Q. Are throat nodulars caused by second hand smoke, allergy drip, and reflux. Also can chlorine and rust in water A.Throat nodules, or also known as - vocal cord nodules, are usually caused by maximum contact between the two vocal cords. The cause of these formations are usually strenuous...
Yellow (stripe) rust, caused by the obligate parasite, Puccinia striiformis, is found wherever wheat is grown in cool climates. Several race-specific resis... R Johnson 被引量: 243发表: 1988年 Co-evolutionary interactions between host resistance and pathogen effector genes in flax rust disease....
phenotype data analysis. The method, developed on the R programming environment, counts, measures, and reports the damage caused by rust on pea leaflets. Moreover, when images are provided in a temporal sequence, the method can accurately integrate the damage into the most common disease ...
2.Wheat leaf rust caused by Puccinia triticina is a serious and widely distributeddisease of wheat.由小麦叶锈菌(Puccinia triticina)引起的小麦叶锈病在世界各地产麦区均有发生,利用抗病品种是防治该病害最经济、安全、有效的方法。 3.Wheat leaf rust is an important disease in the production of wheat.小...
(Pgt) populations that cause wheat stem rust disease are clonal in most parts of the world, but local sexual populations occur where the alternate host barberry (Berberisspp.) is present4,5. Wheat leaf rust disease caused byPuccinia triticina(Pt) results in substantial crop losses around the ...
cedar-apple rust,plant diseasethat primarily affectseastern red cedar(Juniperus virginiana) and variousappleandcrabapplespecies (genusMalus) in North America and that is caused by thefungusGymnosporangium juniperi-virginianae. Both hosts, thejunipersand the apples, are required for completion of therust...