Water-Yield Relationships of Deficit Irrigated Pepper (Capsicum Annuum L. Demre)

Abstract

This trial was realized in the greenhouses of Uludag University Yenisehir Vocational School between 2009 and 2010 to investigate effects of water deficit on yield and quality parameters of pepper during four crop growth stages. In this study, fourteen irrigation treatments in four growth periods (vegetative, flowering, yield formation and ripening) of pepper (Capsicum annuum l. Demre) were constituted and the yield and quality parameters found from these treatments were evaluated. The layout of the experiment was a completely randomized block design with three replications for each of the fourteen irrigation treatments tested. According to the content of the treatments, the irrigation amount water applied to the plants varied between 0 and 744 mm in the first year, and between 0 and 750 mm in the second year. Water consumption of pepper in the first year ranged between 320 and 760 mm and in the second year ranged between 330 and 770 mm. Yield, fruit weight, diameter, length and dry matter ratio were determined statistically significant. In 2009 and 2010 years, the maximum yield were found as 26.2 t ha-1 and 27.8 t ha-1 in V100F100Y100R100 treatments, while the minimum yield were found as 0.2 t ha-1 and 0.3 ha-1 in the V0F0Y0R0 treatments, respectively. Water- yield relationship factors (ky) in 2009 and 2010 years were found as 1.29 and 1.24, respectively. The maximum WUE and IWUE values were obtained from vegetative and ripening periods. Vegetative and ripening periods may be suggested as the maximum efficient irrigation periods for the pepper applied with drip irrigation under unheated greenhouse conditions.

Aroma and Some Quality Characteristics of Sweet Black Colored Oskar F1 (Capsicum Annuum L. Cv. Oskar F1) Pepper Variety

“…/ plant in open field conditions, in another study (Ayas et al, 2019) the yield of Demre F1 green pepper variety (Capsicum annuum L. cv. Demre F1) was 26.2 tons / ha in the first year and 27.8 tons / ha in the second year of the study in the greenhouse conditions.…”

“…When compared with yield content of studies in other pepper varieties (Ergun and Aktaş, 2018;Ayas et al, 2019), it was determined that the marketable yield (858.8 g / plant) of Oskar F1 pepper variety which grown in ecological conditions of Çanakkale was not at a low value as a hybrid green pepper variety. When yield content evaluated in studies (Ergun and Aktaş, 2018;Ayas et al, 2019) in other pepper varieties, it can be expressed that the marketable yield (858.8 g / plant) of Oskar F1 pepper variety which grown in Examined studies in some other pepper varieties concerning soluble solids content (Bernardo et al, 2008;Balkaya and Karaağaç, 2009) express that Oskar F1 pepper has high level of soluble solids (7.,2%). Soluble solids indicates the ratio of the amount of sugar, which is an important quality criterion.…”

“…Ergun and Aktaş (2018), studied grafting applications in Efil F1 pepper variety and determined that fruit length was 19.12 ± 0.19 cm, fruit width was 23.475 ± 0.33 mm, fruit weight was 32.98 ± 0.7 g, total yield was 0.66 ± 0.09 kg / plant to ungrafted plants. Ayas (2019), studied irrigation applications in the greenhouse and determined the yield amount of Demre F1 green pepper as 26.2 tons / ha and 27.8 tons / ha in 2009 and 2010 respectively in the plants which were water restriction not applied. In another study (Arancon et al, 2005), different fertilization applications were made in bell pepper (Capsicum annuum L. cv.…”