密度、苗龄对贵州特色杂粮红稗产量的影响

Influence of Density and Seedling Age on Yield of Careal Bacca Sedge in Guizhou

采用206-D最优回归设计方案,研究了不同密度和苗龄对红稗植株产量的影响。结果表明：在试验设置的密度和苗龄范围内,随着二因素的逐渐升高,产量呈现出先升后降的变化趋势。密度在4400~5600株/667m2、苗龄在38~42d内,曲线变化比较平缓,说明在该区间内有利于红稗产量的提高。产量最高的密度、苗龄二因素最佳组合为5459株/667m2和38d。

With the optimal regression design of two factors,the influence of density and seedling age on yield of characteristic careal Bacca Sedge in Guizhou. The result showed that under the test densities and seedling ages, with the two factors increasing commodities spike increased first and decreased later, considering that it was beneficial for the yield of Bacca Sedge plants, its suitable density was 4400 to 5600 plants/667m2 and the seeding ages was 38 -42d. The best combination was screened when density was 5459 plants/ 667m2and seeding age was 38 days that the Bacea Sedge group reach the highest yield level.