Seaton, H. L. and Gray, G. F. Histological study of tissues from greenhouse tomatoes affected by blotchy ripening. Jour. Agr. Research (U.S. Dept. of Agr.), Vol. 52, No. 3, pp. 217-224. 1936.

Breeding and Varieties

Boswell, V. R. Improvement and genetics of tomatoes, peppers, and eggplant. U.S. Dept. of Agr. Yearbook. 1937. pp. 176-206. Full biblio.

Boswell, V. R., et al. Description of American varieties of tomatoes. U.S. Dept. of Agr. Misc. Publ. 160. 1933.

Muller, C. H. A revision of the genus Lycopersicon. U.S. Dept. of Agr. Misc. Publ. 382. 1940.

Morrison, Gordon. Tomato varieties. Mich. Exp. Sta. Spec. Bul. 290. 1938.

Myers, C. E. and Lewis, M. T. The effect of selection in the tomato. Penn. Exp. Sta. Bul. 248. Rev. May 2, 1930.

Yeager, A. F. Tomato breeding. N.D. Exp. Sta. Bul. 276. 1933.

Pritchard, F. J. Development of wilt-resistant tomatoes. U.S. Dept. of Agr. Bul. 1015. 1922.