Relationship between SPAD value and chlorophyll content in the leaf of corn inoculated by Piriformospora indica and Glomus mosseae

کاظمی, شهریار and پیردشتی, همت اله Relationship between SPAD value and chlorophyll content in the leaf of corn inoculated by Piriformospora indica and Glomus mosseae. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

In order to evaluate the relationship between SPAD value and chlorophyll content in the leaf of corn (Zea mays L. cv. SC 704) inoculated by mycorrhiza-like fungus ,Piriformospora indica, and mycorrhiza fungus ,Glomus mosseae, a field experiment was conducted in randomized complete block design at the station of Gharakhil during 2015. Treatments were at four levels of inoculation, including control, Piriformospora indica inoculation, Glomus mosseae inoculation and Piriformospora indica + Glomus mosseae inoculation. The results showed that there were significant differences among all levels of inoculation treatment in terms of chlorophyll a, chlorophyll b, total chlorophyll (a+b), Fv/Fm ratio and SPAD value. Accordingly, the maximum amount of these traits was obtained from the Piriformospora indica + Glomus mosseae inoculation level. There was also a significant linear relationship between chlorophyll a content, SPAD value and Fv/Fm ratio. In general, it could be useful to use the SPAD meter to calculate the amount of chlorophyll present in corn leaves without spending time and money.

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