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“Caldwell”(CI 19897)是一个软质红皮冬小麦品种,由美国农业研究处和农业部合作育成,1981年开始推广。该品种来自Purelue5724B3—5—P—8—2~*2/Siete Cerros,经多年多点鉴定,属早熟品种;株高91厘米,籽粒容重为160公斤/百升,磨粉及烘烤品质良好;中等抗寒;它对秆锈菌的许多生理小种(15TMN、15TLM、151QFB、151QCB和17HDL)具有抗性;对叶锈菌的5、15、35、76、UN9以及在印第安纳新的生理小种具有成株抗性;对禾白粉病的若干生理小种,由Septoria tritici所引起的叶斑病均具有抗性;对大麦黄矮病毒、土传花叶病毒、细条花叶病毒也
Caldwell (CI 19897) is a soft-reddish winter wheat cultivar developed in collaboration with the Agricultural Research Service of the U.S.A. and Ministry of Agriculture and launched in 1981. The variety from Purelue5724B3-5-P-8-2 ~ * 2 / Siete Cerros, after many years of identification, is a precocious varieties; height 91 cm, kernel weight 160 kg / h, milling and baking quality is good ; Moderately cold resistant; it is resistant to many physiological races (15TMN, 15TLM, 151QFB, 151QCB and 17HDL) of Puccinia recondita; 5,15,35,76 and UN9 of Puccinia recondita and a new physiology in Indiana Races are resistant to adult plants; for several physiological races of powdery mildew, leaf spot caused by Septoria tritici are resistant; for barley yellow dwarf virus, soil-borne mosaic virus,