Skip to Main Content
Pre-inoculation by an arbuscular mycorrhizal fungus enhances male reproductive output of Cucurbita foetidissimaAuthor(s): Rosemary L. Pendleton
Source: International Journal of Plant Sciences. 161(4): 683-689.
Publication Series: Scientific Journal (JRNL)
Station: Rocky Mountain Research Station
PDF: View PDF (188.35 KB)
DescriptionMale 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.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationPendleton, 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.
Keywordsbuffalo gourd, Cucurbita foetidissima, Glomus intraradices, male reproductive output, gynodioecy, sex allocation
- Effect of mid-summer haying on growth and reproduction in prairie forbs
- Exotic cheatgrass and loss of soil biota decrease the performance of a native grass
- Growth and intraspecific competitive abilities of the dioecious Lindera melissifolia (Lauraceae) in varied flooding regimes
XML: View XML