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以晋黍9号为试验材料,研究了相同播种量条件下8个不同行距处理对黍子农艺性状、经济性状及产量的影响。结果显示:随着行距增加,黍子株高、穗长、穗重、穗粒重、单株重量、收获指数及产量呈先增加后减少的趋势,而茎基粗和有效分蘖数呈逐渐减少趋势;行距对黍子的株高和千粒重没有显著影响,对有效分蘖数、穗粒重和穗重影响较大;相关、多元回归和通径分析表明,黍子产量与株高、穗长、茎基粗、有效分蘖数、穗重、穗粒重、单株重量和收获指数之间极显著相关,穗长、有效分蘖数和穗粒重是对黍子产量影响较大的3个因素;综合因子值分析表明,35cm行距处理有较理想的产量构成因子,群体空间分布均匀,可获得较高产量,其次为行距30和40cm处理。
Taking Jinmai 9 as test material, the effects of 8 different row spacing treatments on the agronomic traits, economic traits and yield of millet were investigated under the same sowing rates. The results showed that the plant height, ear length, panicle weight, grain weight, plant weight, harvest index and yield of millet tended to increase first and then decrease with the increase of row spacing, while the stem base coarse and effective tiller tended to decrease The row spacing had no significant effect on the plant height and 1000-grain weight of millet, but had a significant effect on the effective number of tillers, spike weight and panicle weight. Correlation, multiple regression and path analysis showed that millet production was significantly correlated with plant height, There was a significant correlation between base weight, effective tiller number, panicle weight, grain weight per ear, weight per plant and harvest index. Spike length, number of effective tillers and grain weight per spike were the three factors that had a significant effect on millet production. The analysis of factor values showed that there was an ideal yield component in 35 cm row spacing treatment, and the population was evenly distributed in space with higher yield, followed by 30 and 40 cm row spacing.