论文部分内容阅读
【目的】探讨基于多项式回归分析的摩尔多瓦葡萄富硒效应,为开展广西富硒土原位生产富硒葡萄提供参考依据。【方法】以摩尔多瓦葡萄为试验材料,采用三元二次饱和D-最优设计,以石灰石粉(x_1)、AM菌剂(x_2)、营养调节剂(x_3)为因变量,以试验结果中葡萄硒含量为自变量(y),设11个处理(处理1~处理11),经回归分析明确试验因素对葡萄硒含量的影响,优选生产富硒摩尔多瓦葡萄的外源物质施用量。【结果】施用石灰石粉、AM菌剂和营养调节剂各处理(除处理1外)摩尔多瓦葡萄的硒含量比对照(CK)提高1.1~1.8倍,最高增幅达87.2%。多项式回归方程中单因素效应分析结果显示,当石灰石粉、AM菌剂和营养调节剂施用量分别为2400.00、69.00和39.98 kg/ha时,摩尔多瓦葡萄硒含量最高,为11.56μg/kg;互作效应分析结果显示,两两互作对摩尔多瓦葡萄硒含量的影响排序为x_1x_3>x_1x_2>x_2x_3。【结论】摩尔多瓦葡萄分别开沟施用石灰石粉、AM菌剂和营养调节剂2400.00、69.00和39.98 kg/ha,其果实硒含量达富硒水平。因此,施用石灰石粉、AM菌剂和营养调节剂等外源物质可作为生产富硒葡萄的新型技术手段。
【Objective】 The objective of this study was to investigate the selenium enrichment effect of Moldovan grape based on polynomial regression analysis and to provide a reference for the in-situ production of selenium-rich grape in Se-enriched soil of Guangxi. 【Method】 With Moldova grapes as tested material and ternary secondary saturation D-optimal design, limestone powder (x_1), AM fungi (x_2) and nutrition regulator (x_3) were used as the dependent variables. The selenium content of grape was independent variable (y). Eleven treatments (treatment 1 ~ treatment 11) were set up. The influence of experimental factors on grape selenium content was clarified through regression analysis, and the amount of exogenous substances producing selenium-rich Moldova grape was optimized. 【Result】 The results showed that the selenium content of Moldova grape increased by 1.1 ~ 1.8 times and the highest increase reached 87.2% compared with the control (CK) by applying limestone powder, AM fungi and nutrition regulator. The results of the single factor analysis in the polynomial regression equation showed that the highest selenium content in Moldova grapes was 11.56μg / kg when limestone powder, AM fungi and nutrient conditioner were applied at 2400.00, 69.00 and 39.98 kg / ha, respectively; The results of the effect analysis showed that the effect of any two interactions on the selenium content of Moldova grapes ranked x_1x_3> x_1x_2> x_2x_3. 【Conclusion】 The molds of Moldova were ditched with limestone powder, AM fungi and nutrition regulators at 2400.00, 69.00 and 39.98 kg / ha, respectively. The selenium content in the fruits reached selenium enrichment level. Therefore, the application of limestone powder, AM fungi and nutrient regulators and other exogenous substances can be used as a new type of technology to produce selenium-rich grapes.