. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. [6o DISEASES OF CULTIVATED PLANTS Black root rot {Thielavia basicola, Zopf) was first met with in England on the roots of peas, and called Torula basicola by Berkeley and Broome. Four kinds of fruit have been described, the highest of which is an ascigerous form discovered in Germany by Zopf, on the root of a Senecio. Some doubt was at one time entertained as to whether the. l-"i(j. \\.— Thielavia basicola. i, diseased pea root; 2, portion of first
. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. [6o DISEASES OF CULTIVATED PLANTS Black root rot {Thielavia basicola, Zopf) was first met with in England on the roots of peas, and called Torula basicola by Berkeley and Broome. Four kinds of fruit have been described, the highest of which is an ascigerous form discovered in Germany by Zopf, on the root of a Senecio. Some doubt was at one time entertained as to whether the. l-"i(j. \\.— Thielavia basicola. i, diseased pea root; 2, portion of first conidial stage {Miloiuia) ; 2 X , free conidia of same ; 3, second conidial stage {Torula); 3X, a conidium of same breaking u|) into cells ; 4, ;iscospores ; 5, perilhecium on winter fruit; 6, ascus containing' 8 spores, from winter fruit. Fig. I nat. size; remainder highly mag. fungus was a true parasite, and although capable of existing on manure and dead i)lants as a saprophyte, recent observa- tions and experiments have proved that under certain condi- tions, more especially on badly drained or water-logged soil, the fungus acts as a very destructive parasite. The fungus has been found parasitic on numerous different kmds of plants belonging to widely separated families, as. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massee, George, 1850-1917. New York : Macmillan
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
