Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (188 KB)

Title: Pre-inoculation by an arbuscular mycorrhizal fungus enhances male reproductive output of Cucurbita foetidissima

Author: Pendleton, Rosemary L.;

Date: 2000

Source: International Journal of Plant Sciences. 161(4): 683-689.

Publication Series: Scientific Journal (JRNL)

Description: Male and female reproductive output of Cucurbita foetidissima, a gynodioecious native perennial, was examined in a 2-yr greenhouse/outplanting study. Plants were divided into three treatment groups: (1) a lowphosphorus (P) soil mix control; (2) a low-P soil mix with the addition of mycorrhizal inoculum (Glomus intraradices); and (3) a high-P soil mix. Plants were outplanted after one summer of greenhouse growth and harvested in the fall of the second year. High-P treatment plants grew best during the first year, having significantly longer vines than either low-P treatment. By the end of the second year, however, treatment had no significant effect on either aboveground biomass or weight of the tuberous storage root. Tissue concentrations of N and P also did not differ significantly with treatment. Male reproductive output was significantly enhanced by the addition of mycorrhizal inoculum, resulting in a threefold increase over control plants in the production of male flowers. In contrast, treatment had no significant effect on aspects of female reproductive output, including number of female flowers, percent fruit set, total fruit biomass produced by the plant, or mean fruit weight. Fruit production was correlated with vegetative aboveground biomass and is likely reflective of carbon status. These results suggest that mycorrhizal colonization may differentially influence male and female components of plant reproduction.

Keywords: buffalo gourd, Cucurbita foetidissima, Glomus intraradices, male reproductive output, gynodioecy, sex allocation

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.



Pendleton, Rosemary L. 2000. Pre-inoculation by an arbuscular mycorrhizal fungus enhances male reproductive output of Cucurbita foetidissima. International Journal of Plant Sciences. 161(4): 683-689.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.