Morphological comparison of bark and foliage of Quercus acutissima with those of Quercus variabilis
1990
Sano, T. (Hiroshima-ken. Forest Experiment Station, Miyoshi (Japan))
The morphological comparison of bark and foliage was conducted on Quercus acutissima becoming a raw material of bed logs used for growing superior Shiitaike mushrooms the approximate species Quercus variabilis and Quercus acutissima x Q. variabilis said to be the crossbred of both species. As a result, the maximum annual ring width of cork layer, mean split depth and mean split width of the surface of bark respectively showed the positive correlation with respect to the thickness of outer bark and were effective as indice. Further, the number of splits, the mean split depth and the mean split width respectively had the positive correlation with respect to a diameter breast height and the difference between acutissima and Q. variabilis was well shown. Then, other variables were added to perform discriminant analysis and canonical discriminant analysis. As a result, erroneous discrimination was reduced and the analytical results well coincided with the discrimination results based on foliar morphology and the elasticity of outer bark hard to measure numerically. The morphological comparison of foliage was conducted by dividing the amount of stellate hair grown on the rear of foliage into five stages. In this investigation. Q. acutissima x Q. variabilis was near to Q. acutissima in bark morphology but near to q. variabilis in foliar morphology
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