CARNATION WILT DISEASES 21 



Table 12. Effect of Potassium Permanganate and Hormone Materials 

 OT? Rooting of Carnation Cuttings. 



February 2-21 February 13-March 7 



Treatment Percent Percent Percent Percent 



(In the order used) Rooted Not Rooted Not 



Rooted Rooted 



Good Poor Good Poor 



Potassium Permanganate 1-1,000 84 9 7 90.0 7.5 2.5 



Potassium Permanganate, Rootone 67 29 4 90.0 7.5 2.5 



Rootone 37 59 4 87.5 2.5 10.0 



Rootone, Potassium Permanganate. 80 13 7 85.0 5.0 10.0 



Potassium Permanganate. Root-Gro 90.0 10.0 



Root-Gro, Potassium Permanganate 100.0 



Potassium Permanganate, Hormodin A 90 10 90.0 5.0 5.0 



Hormodin A, Potassium Permanganate.- 74 8 18 95.0 5.0 



Hormodin A 75 13 12 97.5 2.5 



Potassium Permanganate, Auxilin. 73 10 17 



Auxilin, Potassium Permanganate 72 11 17 



Auxilin ..- 68 19 13 



No Treatment . 59 35 6 42.5 25.0 32.5 



The hormone treatment generally has not encouraged significantly better 

 rooting than the permanganate treatment and the omission of the latter would 

 be unwise if some degree of disinfection of the cuttings is desired. The treatment 

 of the cuttings with both the hormone material and potassium permanganate in 

 some instances gave superior results, irrespective of the order in which they were 

 used; but the contrast between the dual treatment and potassium permanganate 

 alone could not be considered sufficient to warrant the use of both in practice. 

 The good results obtained from extensive tests with potassium permanganate 

 alone warrant its use. If the grower will make fresh solutions every 7-10 days 

 during the propagating season he will find much merit in its use in contrast to no 

 treatment at all. The cuttings must not be rinsed after immersion in the solution; 

 rather, they should be sprinkled overhead with water after they have been in- 

 serted in the sand. 



PROPAGATION 



The art of propagating carnations from cuttings has been described frequently 

 in various bulletins on carnation culture and in the trade papers. The reader is 

 referred to a recent and comprehensive account describing all the details of 

 propagation by McCully (44), a commercial grower in Massachusetts. 



Sanitation 



The maintenance of sanitary conditions and good management of moisture 

 and temperature conditions in the propagating house are highly desirable. 

 Cleanliness and the sanitary disposal of carnation debris and unrooted litter are 

 very helpful in disease control (Fig. 9). Beuerlein (4), a New Jersey commercial 

 grower, emphasizes cleanliness in and around the greenhouse in view of the 

 relationship of sick plants and carnation litter to the cultivation and spread of 

 disease. This is especially applicable to the propagating house. The Botrytis 



