Research Regarding the Effect of Arbuscular Mycorrhiza upon Principals Physiological Index in Salad - Lactuca sativa L.
Abstract
The mushrooms of vesicular arbuscular mycorrhiza have a positive influence in the most crops physiology, vegetative propagation by promoting increased between absorption of phosphorus, of microelements with difficult absorption for plant with reduced mobility and water, causing increased resistance to drought. Research was focused on the effect of arbuscular mycorrhiza upon chlorophyll content, leaf area and photosynthesis intensity in salad. Biological material used was the commercial genotypes of lettuce (Lactuca sativa L.), with Hungarian origin. To induce mycorrhiza was used commercially inoculums under the name of INOQ Top from INOQ GmbG, Germany. It contains the following species of fungi: Glomus etunicatum (Becker & Gerdemann), Glomus intraradices (Schenck & Smith), Glomus claroideum (Schenck & Smith). Chlorophyll content was measured using portable clorophyllmeter Spades 502, Konika Minolta, leaf area was determined with a portable scanner Leaf Area Meter AM 300-0002, Bioscientific ADC Ltd, and to measure the intensity of photosynthesis we used CO2 ANALYSIS PACKAGE device, qubit Systems (Canada), which incorporates an infrared gas analyzer to measure CO2 concentration. Chlorophyll content and hence CIC (chlorophyll content index) responded similarly to AMF colonization, ascertaining the higher values for phosphorus concentration variations in mycorrhiza 1X (0,43g/l Ca3 (PO4)2) and 0,5X (0,215 g/l Ca3(PO4)2).
Authors who publish with this journal agree to the following terms:
a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
