沢辺, 治之

サワベ, ハルユキ

SATO, Saburo

SAWABE, Haruyuki

In 1956 and 1957, the germination tests of chestnuts pollen which were soaked in water some hours. According to the results, the chestnuts pollen showed resistance to water-rain. But the soaking hours were concerned in the germination force. Untill 9 hours after the pollen were mixed in water, the pollen had 19-1.97112erminate ability in Osaya, and 17-1228203520n Kanotsume, And in the field, the pollination tests were performed in Osaya and Kanotsume varieties. According to the results, in cross-pollination their fruits sets were 48-1228201088n Osaya, 50 139463720n Kanotsume in 9 hours soaking pollen. On the other hand, in self-pollination, their fruits sets were no good and their sets were 3-1073781656n Osaya and 9-1229005208n Kanotsume in the same hours soaking pollen. Ingenerally, the chestnuts pollen had showed reistance to wetting than another fruit-tree pollen-persimmon and pear pollen.