[HARRISON-SADLER] A BACTERIAL SOFT ROT OF TURNIPS 97 



Potato. Very rapid action; in 24 hours a soft creamy looking 

 growth closely resembling sputum. Potato completely softened. 



Turnip (White). In 24 hours considerable growth and softening 

 to a depth of 5-6 mms. In 96 hours the softening increases to a 

 depth of H cms., the turnip having a dirty white appearance. 



Beet. Growth on surface, but no softening. 



Swede Turnip. In 48 hours typical softening with water soaked 

 appearance; 24 hours later large beads of moisture on the surface; 

 rotting much increased, and the development of a smoky black color. 



Cabbage. In 24 hours abundant growth; considerable softening 

 and water-logged appearance. In 96 hours the stem much rotted 

 and leaves reduced to a soft pulpy mass. 



Artichoke (Jerusalem). In 24 hours rapid growth, with softening 

 and black appearance of diseased portidîi. 



Mangold. Very slight growth on surface, and no softening. 



Sugar Mangold. Very slight growth on surface and no softening. 



Sugar Beet. No softening. 



Parsnip. — In 24 hours softening commences with whitish growth. 

 In 96 hours the softening has increased to a depth of 1^ cms., the 

 growth later assuming a brownish and finally a decidedly black tint. 



Celery. — Rapid softening, and in 48 hours almost entirely rotted: 

 the color is dirty white and whitish appearance on the surface. 



Cucmnber. — Very rapid softening and exuding of milky looking 

 fluid on the top. In 24 hours the softening reached a depth of 1 cm. 

 and extended over the entire surface. In less than a week the slice 

 of cucumber is entirely reduced with an objectionable odor and a 

 yellowish colour. 



Tomato (Green). — Rapid softening, but not quite so complete as 

 in the cucumber: in 24 hours a depth is reached of | to 1 cm. 



The rotted tomato assumes a deep grey colour, and a dark brown 

 liquid exudes. 



Hubbard, Crook Neck and Winter Squash. — These varieties of squash 

 have been inoculated and in each case perceptible softening occurs 

 within 24 hours. In 96 hours this has increased to the extent of 2h cm. 

 in depth. 



Onion. — Rapid and complete rotting: the onion has a yellowish 

 white appearance and a vile putrid odour. 



Lettuce. — In 48 hours the heart of the lettuce is completely rotted. 



Sweet Potato. — The organism has a very rapid effect. In 12 hours, 

 at 25-30°C, the potato assumes a yellowish appearance at the point 

 of inoculation and softening has progressed to the extent of 1 mm. A 

 very strong and agreeable smell or perfume resembling oil of citronella 

 is perceptible. 



