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利用“红缨子”高粱为研究材料,采用随机区组排列,研究了5个不同播种期对其生育和产量的影响。结果表明,不同播种期对“红缨子”出苗期、拔节期、抽穗期、成熟期、株高、单穗粒重、千粒重及产量都有不同程度的影响。随着播期的推迟,生育期基本按规律缩短,生育期最长139d,最短的为108d。各处理中以5月15日播种的产量最高,达到261.35kg/667m2,其它处理间随着播种期的推迟单穗粒重、千粒重和产量都呈下降趋势。通过试验结果比较,“红缨子”高粱的适宜播种期可以考虑在4月15日前后。
Using “red tassel” sorghum as research materials, the random block arrangement was used to study the effects of five different sowing dates on their fertility and yield. The results showed that different sowing dates had different degrees of influence on seedling emergence, jointing stage, heading date, maturity, plant height, grain weight per ear, grain weight per 1000, and grain yield of With the delay of sowing date, the growth period basically shortened according to the law, the longest growing period of 139d, the shortest of 108d. The highest yield was 261.35kg / 667m2. The grain weight per plant, grain weight per panicle and grain yield of other treatments decreased with the delay of sowing time. Through the comparison of test results, suitable sowing date of “red tassel ” sorghum can be considered before and after April 15.