EFFECTS OF DIFFERENT IRRIGATION LEVELS ON YIELD OF LETTUCE GROWN IN AN UNHEATED GREENHOUSE
Journal Title: Current Trends in Natural Sciences - Year 2016, Vol 5, Issue 9
Abstract
This study was carried out in an unheated greenhouse in order to determine effects of different irrigation levels on lettuce yield (cv. Hazar) grown from December to February in Şanlıurfa, Turkey. Different irrigation water amounts based on Class-A-Pan evaporation were applied to the plants by drip irrigation system at four irrigation levels (Kp1= 1.0, Kp2=0.75, Kp3=0.50, Kp4=0.25) in one week irrigation interval. Applied irrigation water and evapotranspiration of Kp1 treatment were 118 and 125 mm, respectively. The highest average lettuce yield of 7.8 ton da-1 was obtained from the full-irrigation treatment (Kp1). Significant differences were not observed between Kp1 and Kp2 treatments in terms of lettuce yield. Maximum irrigation water use efficiency and total water use efficiency were obtained from Kp4 treatment respectively with 0.117 and 0.074 ton da-1 mm-1. Yield response factor (ky) was found to be 0.88. The research results showed that a 7 day irrigation interval with Kp2 treatment could be used for irrigating lettuce under the unheated greenhouse conditions without any significant yield loss but increased water use efficiencies.
Authors and Affiliations
Halil Kirnak, Ismail Taş, Zeki Gökalp, Sedat Karaman
Keywords
Related Articles
- EP ID EP25063
- DOI -
- Views 292
- Downloads 11
THE INVASIVE ENTOMOFAUNA OF THE HOLOMETABOLA GROUP, SUPERORDER MECOPTEROIDEA FOR REPUBLIC OF MOLDOVA
The invasive entomofauna from the Holometabola group, Mecopteroidea supraorder for Republic of Moldova consists of 79 species from 3 orders (Lepidoptera, Hymenoptera and Diptera). These 79 species of insects were compar...
VARIABILITY OF VICIA CRACCA L. WEED FRUIT CHARACTERS
The species has been an increasing trend in winter wheat crop. Cause is still better adaptability to existing conditions. Variability studies may bring some new information on how this adaptation took place. Racemes fru...
STUDIES CONCERNING THE INFLUENCE OF BIODEGRADABLE SLOW-RELEASE FERTILIZER USE IN DEVELOPING THE CULTURE OF PETUNIA HYBRIDA SEEDLINGS
Our research on the use of slow-release biodegradable fertilizers were applied to Petunia hybrida seedlings of the variety “White Surfinia”. Thus after 10 days subculturing procedure was to apply fertilizers containing...
THE EVALUATION OF THE STRENGTHS OF LONG-EARED OWL (ASIO OTUS) THAT WINTERED IN THE ARGEŞ COUNTY (2014-2015). PRELIMINARY STUDY
In this paper, the authors present the results of the Long-eared Owl (Asio otus) census performed in 2014 - 2015 winter in the Argeş County (Romania). The exact place of the birds agglomerations, the characters of the r...
APPLICATION OF LASER TREATMENT WITH RADIATION STIMULATION IN ANNUAL SPECIES OF SEED GERMINATION DIANTHUS CARYOPHYLLUS - VAR CHABAUD AND PETUNIA HYBRIDA
Additional illumination with red light produced by laser diodes in continuous and different exposure times, was applied to seeds from two species of annual flowers: Garofita Dianthus caryophyllus - var. CHABAUD; FEUER K...