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Optimization and Utilization of Agrobacterium-mediated Transient Protein Production in Nicotiana

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Greenhouse spinach production in a NFT system.

A J Both¹, A R Leed, E Goto

¹Department of Agricultural and Biological Engineering, Cornell University, Ithaca, NY 14853, USA.

Acta Horticulturae

|December 1, 1996

Summary

This summary is machine-generated.

Spinach growth and dry weight production in NFT systems can be predicted using daily light levels. High chlorine levels were toxic, and Fusarium root rot proved difficult to manage.

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Area of Science:

Horticulture
Plant Physiology
Agricultural Engineering

Background:

Controlled environment agriculture (CEA) is crucial for year-round crop production.
Spinach (Spinacia oleracea L.) is a valuable crop for CEA systems.
Optimizing light and managing root diseases are key challenges in NFT systems.

Purpose of the Study:

To determine the relationship between light levels and spinach dry weight production in NFT systems.
To identify potential toxic thresholds for chlorine in nutrient solutions.
To assess the efficacy of various treatments against Fusarium root rot in spinach.

Main Methods:

Spinach seedlings were grown in a controlled environment greenhouse using Nutrient Film Technique (NFT) systems.
Different daily light integrals (mol m-2 d-1) were applied using HPS lamps.
Dry weight was measured, and an expolinear growth equation was used for prediction.
Nutrient solution chlorine levels and root health were monitored.

Main Results:

Spinach dry weight production was predictable based on daily light levels using an expolinear growth equation.
Chlorine residuals exceeding 1 ppm in the nutrient solution were toxic to spinach.
Fusarium was identified as the causal agent of root rot, and tested remedies were unsuccessful.

Conclusions:

Daily light integral is a critical factor for optimizing spinach yield in NFT systems.
Maintaining low chlorine levels in nutrient solutions is essential to prevent toxicity.
Effective management strategies for Fusarium root rot in spinach require further investigation.