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  • Author or Editor: Michael Collins x
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Studies were conducted to determine if near infrared reflectance spectrophotometry (NIR) could be used to rapidly determine nonstructural carbohydrate (TNC) concentrations in marigold tissue. Marigold seedlings were grown in natural light growth chambers. Light intensity and CO2 concentration were adjusted to establish leaf samples with a wide range of the carbohydrate concentration. NIR spectra were collected on dry, ground samples using a reflectance scanning monochromator. Conventional laboratory analysis values for the same samples were correlated with spectral data. Calibration statistics were as follows: TNC; standard error of calibration (SEC)= 1.73, R2= 0.95, standard error of prediction or perfomance (SEP) = 1.64, R2= 0.95; Starch, SEC = 1.35, R2= 0.96, SEP = 1.37, R2= 0.94; Soluble Sugars, SEC = 0.26, R2= 0.91, SEP = 0.29, R2= 0.84. These results show that the NIR method can be used to rapidly determine concentrations of nonstructural carbohydrates in marigold leaf tissue and suggest the possibility for routine assessment of carbohydrate status for optimum management of environmental factors.

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The National Guard State Partnership Program seeks to link the National Guards of the United States with Ministries of Defense of emerging democratic nations in cooperative activities of mutual benefit. The Program aims to enhance those connections by bringing “Hometown America” onto the international stage through personal, sustained relationships. These associations could build a “Bridge to America,” establishing and nurturing bonds of mutual understanding at the grass roots level. The focus of the program has shifted rapidly to the “citizen” aspects of the National Guard, with instruction, orientation, and personnel exchanges in areas such as economic development, small business administration, and entrepreneurship. Mississippi's program partner is Bolivia. Mississippi State University was called upon to participate in the program by providing Subject Matter Experts. Scientists spent seven days in Bolivia working with the Bolivian military (made up of conscripted soldiers as young as 14 years of age), the Catholic University, and local villages, advising on greenhouse vegetable production and instructing program participants on cultural practices that would benefit their communities.

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