香菇产量及其构成因素的相关性和回归分析

Correlation and regression analysis of Lentinula edodes yield and its constituent factors

摘要

研究香菇产量及产量构成因素之间的关系，为香菇育种及栽培提供理论依据，以河南省参加区试的9株香菇菌株为研究材料，测量了香菇产量及产量构成的13个因素，采用IBM SPSS Statistics 27分析软件对产量与产量构成因素进行相关和通径分析，分析参试香菇品种产量及产量构成因素的变化及关系。结果表明，参试香菇品种的产量及产量构成因素差异显著，成菇数与产量呈极显著正相关，菌盖厚度及菌盖硬度与产量呈显著负相关，成菇数与菌盖厚度、单菇质量呈显著负相关，菌盖厚度与菌盖硬度呈显著正相关。通过多元线性回归分析，以产量(Y)为因变量，以成菇数(X₁)和菌盖质量(X₂)建立回归模型， Y=-41.889+1.100 X₁+0.314 X₂。进一步进行通径分析的结果表明，对产量直接贡献值最大的是成菇数，其次是菌盖质量。综上，在管理过程中，提高成菇数量、适宜的菌盖质量可以显著提高香菇产量，同时也应综合考虑各因素之间的相互作用。高产香菇品种选育中应重点挖掘影响成菇数量的菌盖发育关键的基因。

Abstract

In order to study the relationship between the yield of Lentinula edodes and its component factors, and to provide theoretical basis for the breeding and cultivation of Lentinula edodes. Using 9 strains of Lentinula edodes in Henan province as the experimental material, 13 factors of Lentinula edodes yield and yield composition were measured. IBM SPSS Statistics 27 analysis software was used to conduct correlation and path analysis of the yield and yield composition factors, and analyze the changes and relationships of the yield and yield composition factors of the tested Lentinula edodes varieties. The results showed that there were significant difference in yield and yield components of the tested varieties. The number of finished fruit bodies was positively correlated with the yield, the pileus thickness and the pileus rigidity were negatively correlated with the yield, the number of finished fruitbodies was negatively correlated with the pileus thickness and the mass of single fruiting bodies, and the pileus thickness was positively correlated with the pileus rigidity. Through multiple linear regression analysis, with yield (Y) as the dependent variable, the regression model was established with the number of finished fruitbodies (X ₁) and the mass of pileus (X ₂), Y=-41.889+1.100 X ₁+0.314 X ₂. The results of further path analysis showed that the largest direct contribution value to yield was the number of finished fruitbodies, followed by the mass of pileus. In the process of management, increasing the number of finished fruit bodies and appropriate the mass of pileus can significantly improve the yield of mushroom, and the interaction between various factors should be considered comprehensively. The selection of high-yielding Lentinula edodes varieties should focus on the excavation of key genes for pileus development that affect the number of finished fruit bodies.

关键词

香菇 / 产量构成因素 / 通径分析 / 回归分析

Key words

Lentinula edodes / Yield components / Path analysis / Regression analysis

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基金资助

河南省现代农业产业技术体系(HARS-22-08-S)

河南省现代农业产业技术体系(HARS-22-08G1)