论文部分内容阅读
选择湖南3大烟区的永州市、浏阳市、桑植县进行客土盆栽试验,探讨土壤和气候及其互作对湖南烤烟部分中性挥发性香气物质含量的影响.结果表明:烤烟二氢猕猴桃内酯、大马烯酮、糠醛、巨豆三烯酮总量、β-紫罗兰酮5种中性挥发性香气物含量属中等变异强度,其变异强弱按该顺序依次递减.土壤和气候及其互作对烤烟不同中性挥发性香气物质含量的影响程度不同.对糠醛含量,气候具有显著效应,土壤及气候和土壤互作效应较小;对大马烯酮含量,气候、土壤均具有显著效应,以气候效应最大,气候和土壤互作效应较小;对β-紫罗兰酮和巨豆三烯酮总量,气候及气候和土壤互作均具有显著效应,以气候和土壤互作效应最大,土壤效应较小;对二氢猕猴桃内酯含量,气候、土壤及其互作效应均较小;气候对5个中性挥发性香气物质含量的变异贡献率为40.82%,土壤为20.67%,气候和土壤互作为38.51%.大田生长不同时期的气象因素对5种中性挥发性香气物质含量的影响程度不同,影响较大的前3个气象因子在发根期为降雨量、云量和平均气温,在旺长期为昼夜温差、日照时间和蒸发量,在成熟期为降雨量、蒸发量和平均气温.对5种中性挥发性香气物质含量影响的前3个主要土壤养分因子为速效钾、有效磷和pH.
In this paper, pot experiments were conducted in Yongzhou, Liuyang and Sangzhi counties to investigate the effects of soil and climate and their interactions on the contents of some neutral volatile aroma components in flue-cured tobacco in Hunan Province. The results showed that: Lactone, Damascenone, furfural and megastigone, and the neutral volatile aromatics contents of β-ionone belong to the medium intensity of variation, and their variation intensity decreases in this order. Soil and climate and The effects of interaction on the content of neutral volatile aroma components in flue-cured tobacco were different, which had significant effects on the content of furfural, climate, soil-climate interaction and soil interaction, but significant on the content of Damaskone, climate and soil Effect, the climatic effect is the greatest, and the effect of climate and soil interaction is small. It has significant effect on the total amount of β-ionone and megastigmanthone, climate and climate and soil interaction, and the interaction effect between climate and soil is the largest , The soil effect is small; the content of dihydrogen kiwifruit lactone, climate, soil and their interaction are small; the contribution of climate to the five neutral volatile aroma components is 40.82%, the soil is 20.67% climate Soil interaction was 38.51% .Metal factors in different periods of field growth had different effects on the content of five neutral volatile aroma components, and the first three meteorological factors influencing the growth were rainfall, cloud amount and average temperature , And in the long-term period of day-night temperature difference, sunshine duration and evaporation, and rainfall, evaporation and average temperature at maturity.Firstly, the three main soil nutrient factors affecting the content of five neutral volatile aroma components were available potassium, Available phosphorus and pH.