Pollination and Subsequent Ovule Development through Fruit Set in ‘Chanee’, ‘Monthong’, and ‘Kradumthong’ Durian

• KOZAI Naoko

  Japan International Research Center for Agricultural Sciences

• CHUSRI Orwintinee

  Chanthaburi Horticultural Research Center

• CHUTINANTHAKUN Theerawut

  Chanthaburi Horticultural Research Center

• TONGTAO Sombat

  Chanthaburi Horticultural Research Center

• HIGUCHI Hirokazu

  Graduate School of Agriculture, Kyoto University

• OGATA Tatsushi

  Japan International Research Center for Agricultural Sciences

抄録

Erratic fruit set occurs occasionally during durian cultivation, even when flowers are artificially pollinated. In this study, early reproductive organ development in durian and its relationship with self-incompatibility were observed over a single season in Thailand. Cross-, self-, and non-pollination treatments were applied to the ‘Chanee’, ‘Monthong’, and ‘Kradumthong’ durian cultivars. Developmental stages of individual ovules, size of the primary ovule, and pollen-tube penetration into the primary ovule were observed at 1, 3, and 7 days after anthesis (DAA). Ovule development was classified into five stages: eight-nucleate, mature, endosperm nuclei division, deformed, and degenerated. Fruit set was determined at 7 and 14 DAA. Fruit set percentage in flowers of the self-pollinated cultivar ‘Chanee’ after 14 days was much lower (28%) than that of both ‘Monthong’ (80%) and ‘Kradumthong’ (81%). Most ovules in the non-pollinated flowers had degenerated by 7 DAA in all cultivars. In cross- and self-pollination, most ovules developed to the stage of endosperm nuclei division at 7 DAA in all cultivars including ‘Chanee’. These results indicate that ‘Chanee’ is a post-zygotic self-incompatible cultivar, and in this cultivar particularly manual cross-pollination is important to ensure fruit set. The percentages of ovules that had reached the endosperm stage were the lowest in cross- and self-pollinated ‘Monthong’ flowers at 7 DAA. Lower sink activity resulting from fewer fertilized ovules could cause flowers to abscise. Intensive management to prevent physiological fruit drop would be required in ‘Monthong’ especially. Successful fertilization and fruit set was observed in both cross- and self-pollinated ‘Kradumthong’ flowers.

収録刊行物

• Tropical Agriculture and Development

  Tropical Agriculture and Development 58 (2), 58-65, 2014

  日本熱帯農業学会

キーワード

• <i>Durio zibethinus</i>
• Embryo sac
• Fertilization
• Pollen tube
• Self-incompatibility

詳細情報

• CRID: 1390001205296898176
• NII論文ID: 130004688238
• DOI: 10.11248/jsta.58.58
• ISSN: 18828469
• ISSN: 18828450
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可