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Title: Consequences of pre-inoculation with native arbuscular mycorrhizae on root colonization and survival of Artemisia tridentata ssp. wyomingensis (Wyoming big sagebrush) seedlings after transplanting

Author: Davidson, Bill Eugene;

Date: 2015

Source: Boise, ID: Boise State University. 104 p. Thesis.

Publication Series: Theses

Description: Inoculation of seedlings with arbuscular mycorrhizal fungi (AMF) is a common practice aimed at improving seedling establishment. The success of this practice largely depends on the ability of the inoculum to multiply and colonize the growing root system after transplanting. These events were investigated in Artemisia tridentata ssp. wyomingensis (Wyoming big sagebrush) seedlings inoculated with native AMF. Seedlings were first grown in a greenhouse in sterilized soil (non-inoculated seedlings) or soil containing a mixture of native mycorrhizae (inoculated seedlings). Three-month old seedlings were transplanted to 24 L pots containing soil from a sagebrush habitat (mesocosm experiments) or to a recently burned sagebrush habitat (field experiments). The mesocosm experiments were started in the spring and fall of 2011 and seedlings were grown under natural climatic conditions. Field experiments, conducted within the Morley Nelson Snake River Birds of Prey National Conservation Area, were initiated in the spring and fall of 2012. At the time of transplanting the percent root colonization was negligible for non-inoculated seedlings and ranged from 24 to 81% for the inoculated seedlings, depending on the experiment. In most experiments, 5 or 8 months after transplanting colonization was about twofold higher in inoculated than non-inoculated seedlings.

Keywords: arbuscular mycorrhizal fungi (AMF), Artemisia tridentata ssp. wyomingensis, Wyoming big sagebrush, seedlings

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Davidson, Bill Eugene. 2015. Consequences of pre-inoculation with native arbuscular mycorrhizae on root colonization and survival of Artemisia tridentata ssp. wyomingensis (Wyoming big sagebrush) seedlings after transplanting. Boise, ID: Boise State University. 104 p. Thesis.

 


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