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江苏淮南地区70年代以来,审定通过的8个小麦品种和2个品系在7个有代表性的试验点进行品比试验,研究15年来品种更换过程中产量和产量因素的表现和稳定性的变化。80年代中期推广的杨麦5号,产量水平约为286kg/亩,比70年代前期推广的品种提高12-15%。由于新品种的育成,平均每10年产量提高8-10%。1970-1985年间,产量的提高主要是保持了一定的亩穗数和着重增加了粒重。近期品种的产量稳定性显著好于老品种。结合产量因素的演变情况。提出了今后江苏淮南地区的产量育种目标。
Since the 1970s, eight wheat cultivars and two strains examined and approved in Huainan area of Jiangsu Province have carried out the ratio test at seven representative test sites to study the changes in the performance and the stability of the yield and yield factors in the process of variety change in the past 15 years . In the mid-1980s, Yangmai 5 was promoted with a production level of about 286 kg / mu, a 12-15% increase over the varieties promoted in the early 1970s. Due to the breeding of new varieties, the average yield per 10 years increased by 8-10%. Between 1970 and 1985, the increase in production was mainly due to the maintenance of a certain number of acres per acre and the increased grain weight. Recent varieties of yield stability was significantly better than the old varieties. Combined with the evolution of output factors. In the future, the goal of yield breeding in Huainan area was proposed.