ISHS Acta Horticulturae 513: XXV International Horticultural Congress, Part 3: Culture Techniques with Special Emphasis on Environmental Implications, Disease, Pest Control and Integrated Pest Strategies
FIRST RESULTS ON THE PHYSIOLOGICAL EFFECTS OF SOIL MANAGEMENT IN TABLE GRAPE cv. ITALIA |
| Authors: | V. Novello, L. de Palma, P. Montemurro |
| Keywords: | weed control, CO2 uptake, stomatal conductance, leaf transpiration, water use efficiency |
| Abstract:
Four methods of soil management for weed control were compared on table grape cv. Italia trained to tendone system in Southern Italy: A) traditional tillage; B) tillage + residual herbicide; C) inter row tillage + systemic herbicide on the row; D) weed cutting + residual herbicide. In one day in May, June and July, midday leaf gas exchanges, leaf and stem water potentials were assessed; the technical efficiency of weed control, expressed as average percentage of soil covered by herbs, was assessed by plot determination in mid-summer. The weed covering percentage was 0.0 in treatment B and progressively increased in treatments A, D and C. Treatments did not differ as for stomatal conductance, leaf transpiration, leaf and stem water potential. Treatment D showed a positive influence on the leaf net CO2 assimilation, the quantum yield and the water use efficiency. | |
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