ISHS Acta Horticulturae 587: International Symposium on Asian Pears, Commemorating the 100th Anniversary of Nijisseiki Pear
A SEARCH FOR GENETIC RESOURCES ON THE GENUS OF PYRUS IN JAPAN IWATEYAMANASHI (P. AROMATICA NAKAI ET KIKUCHI) |
| Authors: | K. Yoneyama, M. Makita |
| Keywords: | P. aromatica Nakai et Kikuchi, Iwateyamanashi, P. ussuriensis, Nijisseiki, P. pyrifolia Nakai, flavonoid, Asian pear |
| Abstract:
This paper reports the ecology and distribution of Iwateyamanashi, which has been little known thus far, based on the investigation conducted in the Kitakami Highlands in Iwate Prefecture, Japan, approx. Lat. 40°N. Most Iwateyamanashi trees were found at about 400m above sea level. No trees were seen at 700m above the sea or higher. The trees spotted all stood on their own in villages and pastures, beside roads and fields, or at the foot of mountains. No trees were found in colonies. The circumference of the trunks was around 170cm for half of the 24 trees investigated. None of them have been cultivated by villagers. The fruit is small and its flesh, hard and gritty. Fruits, ripened and fell on the ground, have been utilized occasionally in a peripheral manner. The paper contains some discussion as to whether Iwateyamanashi is a native species or an escape of a cultivar brought to Japan several hundred years ago. | |
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