6Ito H,Fukino-Ito N,Horie,et al.Non-destructive detection of physiological disorders in melons using near infrared spectroscopy[C].Acta Horticulture,2004,645:229-234.
7Brito L G,Malevski Y.Compressive Failure patterns of some juicy fruits[J].Journal of food science,1976,41:1320-1324.
8Chen H.Finite element study of the melon for nondestructive sensing of firmness[J].ASAE,1996,39(3):1057-1065.
9Sugiyama J.Melon ripeness monitoring by a portable firmness tester[J].ASAE,1998,41(1)121-127.
10Takao H,Ohmori S.Development of device for nondestructive evaluation of fruit firmness[J].Japan Agricultural Research Quarterly,1994(28):36-43.