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2017

Iowa State University

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

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Infection Studies With Watermelon Wilt Caused By Fusarium Niveum Efs., D. R. Porter May 2017

Infection Studies With Watermelon Wilt Caused By Fusarium Niveum Efs., D. R. Porter

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Watermelon wilt, caused by Fusarium niveum, is a serious disease in Iowa and in many other sections of the United States. The present Iowa acreage is less than 10 percent of the acreage before wilt became a factor.

Three heretofore undescribed seedling symptoms are described. These are: seedling rot, damping off and stunting.

The organism may cause lesions on any of the roots. These are at first water-logged and become discolored in advanced stages. The lesions vary in length from a trace to 28 centimeters.

Infection may be induced thru the use of infested soil, by means of spore suspensions ...


Studies On Formation Of Gas In Sweetened Condensed Milk, B. W. Hammer Mar 2017

Studies On Formation Of Gas In Sweetened Condensed Milk, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

In foods treated in various ways for their preservation, microorganisms that can resist conditions that the great majority of micro-organisms cannot withstand, occasionally develop and bring about undesirable changes. These changes are common in foods that have been subjected to heat and are the results of the presence of organisms that have the ability to resist temperatures that usually effectively sterilize the product in question. In sweetened condensed milk, which is presumably preserved by the addition of high percentages of sucrose, abnormal changes sometimes occur as a result of the presence of organisms that have the ability to develop in ...