Study on variation and correlation of firmness index of Hami melon at different maturity stages
Firmness is one of the important reference indexes of Hami melon maturity.In order to study the change rule of firmness of Hami melon at maturity stage,this paper combined with experimental conditions to measure the weight,longi-tudinal and transverse diameter,firmness and other physical and chemical indexes of two kinds of Hami melon at differ-ent maturity stages.The firmness index of Hami melon with different varieties,different maturity stages,different original spectra and different test sites were studied,and the correlation between the indexes was analyzed.The prediction models of firmness and maturity of different parts of Hami melon were established by hyperspectral technique.The experimental modeling results showed that the correlation coefficients of the equatorial sunny side were Rc=0.982,Rp=0.832.The mod-el correlation coefficient of the dark side of the equator:Rc=0.889,Rp=0.878.And the model correlation coefficient of fruit umbilical position:Rc=0.626,Rp=0.821.The results showed that the firmness index of Hami melon was correlated with the maturity,and the firmness of different parts was different.The results provide a theoretical basis for determining the optimum picking time of Hami melon.
Hami melonMaturity stageFirmnessThe law of changeModel
NETL
NSTL
万方数据
维普
