Studies on the Flower Sex Expression in Balsam Pear (Momordica charantia L.) (1) : The Effects of Growth Regulator, Temperature, Photoperiod, Defoliation and Binding

• FUKUMOTO Yasufumi

  Faculty of Agriculture, Kochi University

• KAJIMOTO Satoshi

  Faculty of Agriculture, Kochi University

• NISHIMURA Yasuyo

  Environmental and Cultural Sciences, Nagasaki Institute of Applied Science

Bibliographic Information

Other Title

• ニガウリ(Momordica charantia L.)の花芽の性表現に関する研究(第1報) : 成長調節物質,日長,温度,摘葉と結縛処理の影響

Abstract

This study was undertaken to clarify the flower sex expression in balsam pear (Momordica charantia L.) flower buds. When treated with Ethrel at a concentration of 50 ppm in both 'Abashi' and 'Nishaku', pistillate flower differentiation was accelerated by a small majority. However, two cultivars were less sensitive to growth regulator than other Cucrubitiaceae vegetables. 'Abashi,' when given a low-temperature, short-day treatment, and 'Nishaku,' when given a high-temperature, natural day length treatment, exhibited similar results, but the effect was not great. Enhanced pistillate flower differentiation was observed in 'Nishaku' given 50% defoliation treatment, but the degree of enhancement was not pronounced. Although Ethrel treatments at low concentrations and defoliation enhanced pistillate flower differentiation in some cultivars, the effect was limited. These results described above indicate that balsam pear has an uncommon mechanism for flower-bud differentiation.

Journal

• Journal of the Japanese Society of Agricultural Technology Management

  Journal of the Japanese Society of Agricultural Technology Management 14 (3), 186-191, 2008-03-15

  Japanese Society of Agricultural Technology Management

Keywords

• balsam pear
• growth regulator
• photoperiod
• flower sex expression
• temperature

Details

• CRID: 1390282763106874624
• NII Article ID: 110006649752
• NII Book ID: AA11646210
• DOI: 10.20809/seisan.14.3_186
• ISSN: 24242403
• ISSN: 13410156
• Web Site: http://hdl.handle.net/10126/2983
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed