FIRST RESULTS ON THE PHYSIOLOGICAL EFFECTS OF SOIL MANAGEMENT IN TABLE GRAPE cv. ITALIA

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.

XXV International Horticultural Congress, Part 3: Culture Techniques with Special Emphasis on Environmental Implications, Disease, Pest Control and Integrated Pest Strategies

V. Novello, L. de Palma, P. Montemurro

weed control, CO₂ uptake, stomatal conductance, leaf transpiration, water use efficiency

https://doi.org/10.17660/ActaHortic.1998.513.55