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Description: (Triticum aestiwtm L., em. Thell.) The moderate level of tolerance to eyespot caused by Cercosporella herpotrichoides From and the relatively early maturity of Stephens, tested as OR 65-116~70-MBW-2, are advantages in the 300 mm or less rainfall areas where early fall seeding and drought avoidance are desired. Conversely, Stephens has superior yield potential under high rainfall or irrigated conditions, as evidenced by its overall high and stable average yield performance in the Western Regional Soft White Winter Wheat Nursery. Stephens has mature plant resistance to prevalent races of stripe rust (Puccinia striiformis West) and is resistant to prevalent races of leaf rust (Puccinia rubigo-vera (De,) Wint. F. sp.tritici (Eriks.) Carl.). It is moderately resistant to powdery mildew (Erysiphe graminis De. F. sp. tritici Em. Marchal) and carries the Bt4 or Bt6 gene for resistance to common bunt (Tilletia foetida (Walls.) Lifo or T. caries (De.) Tul.). Stephens is medium in height with a strong, white stem.The spike is awned, fusiform, middense, and inclined with labrous, white, midlong glumes. The shoulders are narrow, blique, with beaks narrow, accuminate, and 2 to 3 mm long. The awns are flared, white, and 2 to 7 cm long. Kernels are relatively large, white, soft, and ovate with small to midsize erm and midwide crease, which is middeep. Creation: CI 17596 is soft white winter wheat developed by the Oregon Agric. Exp. Stn. in cooperation with SEA, USDA, from a cross between ’NordDesprez’ and Pullman Selection 101 (CI 13438) made in 1965. Country: USA Yeld: 65 bu/a Go to Tables of wheat varietes |