Year 2017, Volume 63, Issue 1

Year : 2017
Volume : 63
Issue : 1
   
Authors : Lovro SINKOVIČ, Nataša MIRECKI, Dragan ŽNIDARČIČ
Title : EFFECT OF POLYPROPYLENE COVER AND PLANT DENSITY ON YIELD AND ASCORBIC ACID CONTENT OF BELL PEPPER FRUITS
Abstract : This study aims to evaluate the effect of polypropylene cover and plant density on the marketable yield and ascorbic acid content of bell pepper fruits. Seedlings of cultivar ‘Bianca F1’ were planted in four plant densities of 21.8, 13.2, 10.9 and 6.6 plants m-2. The two-factorial experiment in four repetitions was used, where the 1st factor was covering (covered and uncovered) and 2nd factor was plant density in four steps (above mentioned). The polypropylene cover over the plants was laid on plastic hoops, while control plants remain uncovered. Plants were grown on soil covered with black polyethylene mulch film. Mean daily air temperature under the polypropylene cover was 2.3 – 5.8 °C higher than the air temperature in the uncovered crop. Polypropylene cover was removed after eight weeks, when the daily air temperature reached 30 °C. Yield component analysis indicated that fruits from covered plants had greater fresh weight in comparison to fruits from uncovered plants for all plant densities. The marketable yield under polypropylene cover was significantly higher (over 70 %) compared to uncovered control. Increasing plant density enhanced the marketable yield, but the interactions of cover and plant density were not significant. The cover had strong influence on the yield at the second harvest time. Ascorbic acid contents were found significantly higher for bell pepper fruits grown under cover at all plant densities.
For citation : Sinkovič, Mirecki N., Žnidarčič D., (2017) Effect of polypropylene cover and plant density on yield and ascorbic acid content of bell pepper fruits, Agriculture and Forestry, 63 (1): 329-336. DOI: 10.17707/AgricultForest.63.1.34
Keywords : ascorbic acid content, Capsicum annuum L., polypropylene cover, plant density, yield component analysis
   
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ISSN 0554-5579 (Printed)
ISSN 1800-9492 (Online)
DOI : 10.17707/AgricultForest

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