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春小麦南方异地种植,表现有光敏、温敏和迟钝三种类型。除晚熟的光敏型品种外主要性状都能够充分表现出来,并扩大变异范围,为选择提供了有利的条件。生育期、株高、穗长和穗粒数等性状南北两地存在中度相关,可参照北方表现进行选择。光敏型材料因南方的高温短日条件不利其性状的发育,在选择度上应适当放宽。千粒重南北两地的相关系数较高,应注意对(尤其是温敏型材料)千粒重的选择。
Spring wheat planting in different places in the South, the performance of photosensitive, temperature sensitive and retarded three types. In addition to late-maturing photosensitive varieties outside the main traits can be fully demonstrated, and to expand the scope of variation, provide favorable conditions for the selection. Growth stage, plant height, spike length and grain number and other traits in North and South there is a moderate correlation can refer to the performance of the North to choose. Photosensitive materials due to southern conditions of short-term high temperature heat its traits, the degree of selectivity should be appropriately relaxed. Thousand grain weight The correlation coefficient between North and South is higher, should pay attention to (especially temperature-sensitive material) 1000 grain weight choice.