ISHS Acta Horticulturae 278: Symposium on Scheduling of Irrigation for Vegetable Crops under Field Condition
CLIMATE AND WATER REGIMES ON BROADBEAN FOR GREEN CONSUMPTION |
| Authors: | D. Linsalata, B. Spada, V.V. Bianco |
| Abstract:
Field experiments were done during three growing seasons at Polignano a Mare (Bari), in Southern Italy, on a clay-silt soil. Broadbean, Vicia faba L. var. major Hartz, cv. Locale di Bari (100 seed = 180 g), was sown in October, November, December and January and grown under four water regimes (unirrigated control and water applied at 50–75 and 100% of ETM measured by evapotranspirometers). The different climate experienced by plants influenced remarkably evapotranspiration, water consumption, the length of harvesting period, number of harvestings, plant height, pods per plant, pod length and seed weight. The November sowing (30 t ha-1) out-yielded January sowing by about 20%. Delaying the sowing date from October to January the date of first watering was delayed and the length of the harvesting period, the number of harvests, number of waterings, haulm weight, plant height and stems per plant were reduced. Pods and seeds yield, number and weight of pods per plant, pod weight, pod length and haulm weight were higher in the irrigated plots, irrespective of water regime; conversely shellout percentage and mean seed weight were lower in the irrigated plots. Supplying 500 m3 ha-1 of water from the period of flowering to pod filling was adequate to increase pod yield of 10 t ha-1 and seed yield of 2.5 t ha-1; further waterings were uneffective. Correlations between many plant characteristics were found. | |
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