@article{oai:repository.naro.go.jp:00001741,
 author = {山口, 正己 and YAMAGUCHI, Masami and 土師, 岳 and HAJI, Takashi and 八重垣, 英明 and YAEGAKI, Hideaki},
 journal = {果樹研究所研究報告, Bulletin of the National Institute of Fruit Tree Science},
 month = {Mar},
 note = {Measurement on exocarp cell sizes and stomatal densities, and observation on exocarp cell changes at fruit apex, equator and stalk cavity of 'Wasenectarine' and 'Flavortop' nectarines, were carried out during nectarine fruit development to clarify the factors involved in fruit cracking in 1999. Nine nectarine cultivars were used in addtion to these two cultivars in 2000 for the measurement on exocarp cell length at equator. In 'Wasenectarine' and 'Flavortop', the stomatal hole became large and brown, and the cells around the stoma were destroyed during the fruit enlargement. The changes started in fruit apex at first, and spread into equator skin. Moreover, the changes in 'Wasenectarine' which shows high susceptibility against cracking was earlier than those in 'Flavortop', a resistant culitvar to cracking. These disorders seem to involve in the cracking and rough skin of nectarines. Significantly, high correlation coefficients were obtained between fruit sizes such as fruit height, thickness or width, versus lateral and vertical length of exocarp cells. The slopes of regression lines were higher in lateral and vertical cell lengths at fruit apex and equator than those at stalk cavity, and also higher in 'Wasenectrine' than in 'Flavortop'. These tendencies were observed in other nine cultivars: cracking resistant cultivars, 'Flavortop', 'Fantasia' and 'NJN69' with lower slopes, and susceptible cultivars, 'Wasenectarine', 'Hiratsuka Red' and 'Shizukured' with higher slopes of them. Therefore, the slope of regression line between fruit thickness and exocarp cell length seems to be good indices of cracking susceptibility, with exception of 'Shyuuhou', which is highly susceptible to cracking but showed lower slope of the regression line. The stomatal densities decreased with the increase of exocarp cell sizes, and showed highly significant correlation coefficient with the index of fruit surface area. The slopes of regression line between index of fruit surface area and stomatal densities are also useful as rough indices of cracking susceptibility.},
 pages = {77--84},
 title = {ネクタリンの裂果抵抗性と外果皮細胞径および気孔密度との関係},
 volume = {2},
 year = {2003},
 yomi = {ヤマグチ, マサミ and ハジ, タカシ and ヤエガキ, ヒデアキ}
}