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一、育种目标问题我省地处北纬31°21′—36°20′之间,小麦产区跨黄淮平原冬麦区和长江中下游麦区两大生态类型区。育种目标与邻近省份不尽相同,省内也有很大区别。大体说来,豫北(黄河以北)和陇海铁路沿线小麦生育期降水量多在200毫米以下,较正常需水量少三分之一以上。春旱尤为严重,干热风也常发生,安阳地区还存在越冬冻害问题。干旱是丰产、稳产的主要限制因素,应把耐旱性作为育种中抗逆性要
I. Breeding Targets The province is located between latitudes 31 ° 21’-36 ° 20’N. The wheat-producing areas cross the two major ecological zones of the winter wheat region of the Huanghuai Plain and the middle and lower reaches of the Yangtze River. Breeding goals and neighboring provinces are not the same, the province is also very different. Generally speaking, the precipitation in the growing season of wheat along the north of Yubei (north of the Yellow River) and Longhai Railway is more than 200 millimeters, less than one third of the normal water demand. Spring drought is particularly serious, hot and dry wind often occur, Anyang area, there are still winter frost damage problem. Drought is the main limiting factor for high yield and stable yield. Drought tolerance should be regarded as the key factor in breeding