Effect of water stress on yield and yield components for some sesame varieties and its relation with wilt disease.

Book Title: NA
Year Published: 2005
Month Published: NA
Author: El-Shemey, A. ; El-Tantay, M. M. ; Mohamed, K. A.
Book Group Author: NA
Abstract:

A field experiment was carried out at Shandaweel Agricultural Research Station farm in Egypt during 2002 and 2003 to study the effects of water stress, i.e. irrigation after the depletion of 25-30% of the available soil moisture (I1), irrigation after the depletion of 45-50% of the available soil moisture (I2), and irrigation after the depletion of 65-70% of the available soil moisture (I3), on 4 sesame cultivars, i.e. Giza 32 (V1), Toshky 1 (V2), Shandaweel 3 (V3) and Sohag 3 (V4). The effect of treatments on water relations, yield, yield components and crop resistance to wilt disease were studied. Mean water consumption was 2226 and 2112 m3/feddan in 2002 and 2003, respectively. Increasing the irrigation interval (irrigation after the depletion of 65-70% of the available soil moisture) reduced actual evapotranspiration by 36.2% compared with irrigation after the depletion of 25-30% of available soil moisture. The highest average water use efficiency values of 0.36 and 0.35 kg of seeds/m3 of water consumed were obtained with I3V2 and I3V3, respectively. These treatments were the most suitable for sesame cultivation at Shandaweel. The most efficient method for calculating sesame water consumption in Upper Egypt was by use of the Doorenbos-Pruitt formula. The highest oil yields were obtained with I2. Wilt disease incidence increased with increasing soil moisture content. V4 was most resistant to wilt diseases.

Pages: 1045 - 1055
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20063116190&site=ehost-live
Volume: 43
Number: 3
Journal: Annals of Agricultural Science, Moshtohor
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 1110-0419
DOI: NA
Keywords:

crop yield, cultivars, disease resistance,evapotranspiration, irrigation, plant diseases, plant water relations,pods, seed weight, sesame, soil water, varietal reactions, water stress,water use efficiency, wilts, yield components, Egypt, Sesamum indicum,North Africa, Africa, Mediterranean Region, Middle East, DevelopingCountries, Sesamum, Pedaliaceae, Scrophulariales, dicotyledons,angiosperms, Spermatophyta, plants, cultivated varieties, resistance todisease, watering, beniseed, soil moisture, Viral, Bacterial and FungalDiseases of Plants (FF610) (New March 2000), Host Resistance andImmunity (HH600), Soil Water Management (Irrigation and Drainage)(JJ800) (Revised June 2002) [formerly Soil Water Management], FieldCrops (FF005) (New March 2000), Plant Breeding and Genetics (FF020),Plant Water Relations (FF062), Plant Production (FF100)

Source: EBSCO
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