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標題：

Seasonal changes in pollen yield and fertility in white sapote (Casimiroa edulis La Llave & Lex.) (Preliminary Report)

作者：

YAMAMOTO MASASHI (Kagoshima Univ., Fac. Agriculture, JPN) YAMAMOTO MASASHI (Kagoshima Univ., JPN) ONJO MICHIO (Kagoshima Univ., JPN) NOMURA TETSUYA (Kagoshima Univ., JPN) YONEMOTO YOSHIMI (Japan International Res. Center Agricultural Sci., Okinawa Subtropical Station, JPN) ISHIHATA KIYOTAKE (Kagoshima Univ., JPN) KUBO TATSUYA (Kagoshima Univ., Fac. Agriculture, JPN) TOMINAGA SHIGETO (Kagoshima Univ., Fac. Agriculture, JPN)

期刊：

Bulletin of the Faculty of Agriculture - Kagoshima University (Mar 2006)

ISSN: 0453-0845,

Vol. No.: (no.56) p. 9-13

摘要：

The fruit productivity of white sapote (Casimiroa edulis La Llave & Lex.) is unstable under open culture in the warm temperate zone in Japan. The seasonal changes in pollen yield and fertility were investigated in several cultivars over two years in order to elucidate the reason for this. Both the high pollen yield and fertility were maintained until early January both years. They were the lowest in March, and became high in May. A period of low pollen fertility continued from February to April in 2003, but this was not the case in February and April 2004. Both 'Rixford' in 2003 and 'Cafeteria' in 2004 did not show low pollen fertility in March. From these results, it could be considered that the seasonal changes in pollen yield and fertility were affected by the winter air temperature, and a low pollen yield and/or fertility were one of the factors for the unstable fruit production of white sapote under open culture in the warm temperate zone in Japan.

詳文出自　http://sciencelinks.jp/j-east/article/200612/000020061206A0399324.php