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Effects of Regulated Deficit Irrigation on Root Growth in Maize

Xiang Yang Guo

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Abstract

Effects of regulated deficit irrigation (RDI) on conformation, activity and dry matter accumulation of maize root were investigated with pot cultivation. Results indicated that RDI may reduce dry matter accumulation to a extent, relevant to seriousness, lasting time of RDI and crop growing stage when RDI treat was carried out. Ratio of root/shoot, TTC contain in root increased, while number and total length of root per seedling decreased. Root activity was improved after re watering, which suggests that RDI might restrain root growth and development qualitatively, but might improve root absorb performance by improving root activity.

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What this paper is about

Effects of regulated deficit irrigation (RDI) on conformation, activity and dry matter accumulation of maize root were investigated with pot cultivation. Results indicated that RDI may reduce dry matter accumulation to a extent, relevant to seriousness, lasting time of RDI and crop growing stage when RDI treat was carried out. Ratio of root/shoot, TTC contain in root increased, while number and total length of root per seedling decreased. Root activity was improved after re watering, which suggests that RDI might restrain root growth and development qualitatively, but might improve root absorb performance by improving root activity.

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Available abstract

Effects of regulated deficit irrigation (RDI) on conformation, activity and dry matter accumulation of maize root were investigated with pot cultivation. Results indicated that RDI may reduce dry matter accumulation to a extent, relevant to seriousness, lasting time of RDI and crop growing stage when RDI treat was carried out. Ratio of root/shoot, TTC contain in root increased, while number and total length of root per seedling decreased. Root activity was improved after re watering, which suggests that RDI might restrain root growth and development qualitatively, but might improve root absorb performance by improving root activity.

Key concepts: Seedling, Dry matter, Shoot, Irrigation, Deficit irrigation, Root system, Agronomy, Root (linguistics)

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