|Author:||El-Hafez, S. A. A. ; El-Sabbagh, A. A. ; El-Bably, A. Z. ; Abou-Ahmed, E. I.|
|Book Group Author:||NA|
The present investigation was conducted at Sakha Agricultural Research Station, Egypt, during 1998 and 1999 growing seasons to study the effect of three irrigation intervals (4, 6 and 8 days) under a sprinkler system on yield and its components as well as to determine some water relations of hybrid vidoc sunflower cultivar. Results revealed that prolonging the irrigation intervals from 4 to 8 days significantly decreased plant height by 5.57%, stem diameter by 11.50%, head diameter by 15.67%, 100-seed weight by 7.09% and seed yield/feddan by 11.14%. Mean consumptive use values were 49.77, 46.30 and 41.85 cm for the 4, 6 and 8-day intervals, respectively. The sprinkler method conserved ~25.26% of water used, achieved the highest values of water use efficiency and reduced the percolation losses percentage below the root zone by 47.74% compared to furrow method.
|Pages:||147 - 152|
|Journal:||Alexandria Journal of Agricultural Research|
crop yield, diameter, irrigation scheduling, percolation,plant height, plant water relations, seed weight, seeds, sprinklerirrigation, stems, sunflowers, water conservation, water use efficiency,Egypt, Helianthus annuus, Helianthus, Asteraceae, Asterales,dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes, NorthAfrica, Africa, Mediterranean Region, Middle East, Developing Countries,spray irrigation, Field Crops (FF005) (New March 2000), Plant WaterRelations (FF062), Plant Production (FF100), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Erosion; Soil and Water Conservation (PP400)