. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. KiG. 15J. An index showing rugosemosaic, with extreme ruffling, wrinltlingand dwarfing. Mottling or streakingsymptoms not visible In photograph. Fig. IfiO. Plant of Pride of with symptoms somewhat similar tothose of leafroll, Inil caused by spindlesprout. It is impossible to hold the temperatures of an ordinary greenhouseconstant, but they should be; maintained sufficiently low to bring theaverage down to where tin; .symptoms will show readily. IMaximumtemperature
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. KiG. 15J. An index showing rugosemosaic, with extreme ruffling, wrinltlingand dwarfing. Mottling or streakingsymptoms not visible In photograph. Fig. IfiO. Plant of Pride of with symptoms somewhat similar tothose of leafroll, Inil caused by spindlesprout. It is impossible to hold the temperatures of an ordinary greenhouseconstant, but they should be; maintained sufficiently low to bring theaverage down to where tin; .symptoms will show readily. IMaximumtemperatures may run as high as 80° F., but should not prevail morethan two or three hours, if all types of are to be read easily. Figures 157, 158 and 159 show the type of healthy ])lants, and twotypes of mosaic (mild and rugose), obtained at the above temperatures. Definite spindle-tuber and leafroll symptoms do not seem to beprevalent in the variety Pride of Wisconsin, and may be disregarded 618 MONTHLY BILLETIX. iiulil further investi^ation. Fijr. IGO is <riven to illustrate a type of|)l;mt obtained that show
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Keywords: ., bookcentury1800, bookdecade1850, bookidappendixtojo, bookyear1853
