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以C_2H_4、CO_2和N_2为试验因子,选用L_9(3~4)正交设计不同浓度混配组合;以下胚轴长、下胚轴粗和主根长为绿豆芽外观形态考察指标;全株质量和产出比为产量构成考察指标,采用正交设计矩阵分析,对3个外观形态和2个产量构成考察指标的权矩阵分析和外观形态与产量构成的总权矩阵进行分析,为绿豆芽工厂化生产提供最佳混合气调方案。结果表明:影响绿豆芽外观形态和产量构成的权重由大到小的因子与水平依次为A_3=0.230 0、B_1=0.059 7、C_3=0.058 8,说明绿豆芽外观形态和产量构成与C_2H_4、CO_2和N_2的关联度依次为C_2H_4>CO_2>N_2;最优处理组合为A_3B_1C_3。综合分析成本及环境考量,认为生产实践中采用C_2H_460mL·L~(-1)、CO_2800mL·L~(-1)、N_285%(A_2B_1C_2)混合气调方案,有益于绿豆芽下胚轴增长增粗、抑制主根伸长而提高产品外观商品性、增加豆芽产量。
Taking C_2H_4, CO_2 and N_2 as test factors, L_9 (3 ~ 4) orthogonal design combinations of different concentrations were selected; the hypocotyls length, hypocotyls and root length were the morphological indexes of mung bean sprouts; Output ratio as the index of production composition, the use of orthogonal design matrix analysis, the appearance of the three appearances and two output indicators constitute the analysis of the weight matrix analysis and appearance of the form and output of the total weight matrix analysis of the structure for the mung bean sprout factory Production provides the best mix of tone program. The results showed that the factors affecting the appearance and yield of mung bean sprouts were: A_3 = 0.230 0, B_1 = 0.059 7, C_3 = 0.058 8, indicating that the morphology and yield components of mung bean sprouts were similar to those of C_2H_4 and CO_2 The correlation degree with N_2 was C_2H_4> CO_2> N_2, and the best treatment combination was A_3B_1C_3. Comprehensive analysis of cost and environmental considerations, the production practice that the use of C_2H_460mL·L -1, CO_2800mL·L -1, N_285% (A_2B_1C_2) mixed tone adjustment scheme, beneficial to mung bean sprout hypocotyl growth increased , Inhibit the main root elongation and improve the appearance of product appearance, increase bean sprouts production.