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    DETERMINATION OF WATER-YIELD RELATIONSHIP OF COMICE PEAR (PYRUS COMMUNIS L.) VARIETY IRRIGATED BY THE IRRIGATION AUTOMATION SYSTEM (IAS) BASED ON PROGRAMMABLE LOGIC CONTROLLER (PLC)
    (Parlar Scientific Publications (P S P), 2019) Gencoglan, Cafer; Gencoglan, Serpil; Nikpeyma, Yusuf; Ucak, Ali Beyhan
    The aims of this study are to determine water yield relationships of Cornice Pear (Pyrus cornmunis L.) variety irrigated by irrigation automation system (1AS) based on Programmable Logic Controller (PLC). Irrigation treatments consisted of five different irrigation levels as 120% (112o), 100% (boo), 80% (180), 60% (16o) and 40% (140) of the pan evaporation and were carried out in 3 replications according to the design of random blocks. Irrigations were applied to parcels by IAS based PLC when the total amount of water evaporated from Class A Pan was equal to or greater than 35 mm. Soil moisture was measured by sensor (MAS-1) running with dielectric constant of soil in layers of 30 cm at depth of 90 cm of soil profile. Total evaporation of 1104 mm was measured from the Class A Pan by the IAS during the irrigation season. The IAS irrigated Cornice pear variety 27 times during irrigation season. The irrigation interval ranged from 3 to 12 days. The amount of water given to the irrigation treatments of 112o, boo, lso, 16o and 140 in each irrigation were 40-62, 33-52, 26-42, 20-31 and 13-21 mm, respectively. The amounts of evapotranspiration (ET) in irrigation treatments were found to be 1287, 1046, 869, 669 and 527 mm, respectively. Under these conditions, the mean fruit yields from irrigation treatments were 15.3, 12.5, 12.6, 11.3 and 9.8 ton per hectare, respectively. Relationships between fruit yield (ton ha-') and net irrigation water (Inw, mm) and evapotranspiration (ET, mm) were found as Fy = 0.00621nw + 7.0091 (R2 = 0.91**) and Fy = 0.0065ET + 6.552 (R2 = 0.92**), respectively. The yield response factor (ky) was 0.60. As the amount of the applied irrigation water decreased, pear yield also decreased but IWUE and WUE increased. However, there was no statistically difference among the yields of the irrigation treatments. Irrigation scheduling based on a 0.4 and 0.6 crop-pan coefficients and their treatments are recommended to the pear producers experiencing water shortage. Under abundant water conditions, 112o, boo and 180 crop-pan coefficients and treatments are also suggested. The pear producers should not consider that the shoot length of Comice Pear take as irrigation timing criteria. In addition, the result of study also showed that IAS could be used to control drip irrigation system, Class A Pan, irrigation scheduling, and to calculated ET and to measure soil moisture.
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    Effects of different irrigation levels on mediterranean corn borer (sesamia nonagrioides lefebvre) populations and effects of fatty acids in corn borer preferences
    (Parlar Scientific Publications, 2017) Ucak, Ali Beyhan; Kaplan, Cevdet; Inal, Behcet; Gencoglan, Serpil
    In this study, effects of different irrigation treatments (I100, I70, I35) on Mediterranean corn borer (Sesamia nonagrioides Lefebvre) populations in different corn genotypes (31D24, ADASA16, P1429) and the effects of fatty acids on corn borer preferences were investigated. The lowest fatty acid content was observed in full irrigation (I100) and the greatest fatty acid content was observed in excessive water deficit (I35) treatment. As the average of two years, the greatest yield (10400 kg ha-1), low number of alive larva + pupa per plant (3.34), tunnel length (9.44 cm) and fatty acid (2.03% ILE Eicosanoic acid, methyl ester (CAS)) were observed in I100x31D24 interaction; the lowest yield (2853.3 kg ha-1) and high fatty acid (46.03% ILE 9.12 Octadecadienoic acid (Z,Z), methyl ester (CAS)) values were observed in I35xP1429 interaction. The greatest Mediterranean corn borer population was observed in full irrigation (I100) and the lowest population was observed in excessive water deficit (I35) treatment. Mediterranean corn borer preferred the genotypes (P1429) with high fatty acid contents. It was concluded that genotypes should be tested under water-stressed and non- water-stressed conditions for resistance to Mediterranean corn borer and alive larva, tunnel length and fatty acids could be used as screening parameters. © by PSP.
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    EFFECTS OF DIFFERENT IRRIGATION LEVELS ON MEDITERRANEAN CORN BORER (SESAMIA NONAGRIOIDES LEFEBVRE) POPULATIONS AND EFFECTS OF FATTY ACIDS IN CORN BORER PREFERENCES
    (Parlar Scientific Publications (P S P), 2017) Ucak, Ali Beyhan; Kaplan, Cevdet; Inal, Behcet; Gencoglan, Serpil
    In this study, effects of different irrigation treatments (I-100, I-70, I-35) on Mediterranean corn borer (Sesamia nonagrioides Lefebvre) populations in different corn genotypes (31D24, ADASA16, P1429) and the effects of fatty acids on corn borer preferences were investigated. The lowest fatty acid content was observed in full irrigation (I-100) and the greatest fatty acid content was observed in excessive water deficit (I-35) treatment. As the average of two years, the greatest yield (10400 kg ha(-1)), low number of alive larva + pupa per plant (3.34), tunnel length (9.44 cm) and fatty acid (2.03% ILE Eicosanoic acid, methyl ester (CAS)) were observed in I(100)x31D24 interaction; the lowest yield (2853.3 kg ha(-1)) and high fatty acid (46.03% ILE 9.12 Octadecadienoic acid (Z,Z), methyl ester (CAS)) values were observed in I(35)xP(1429) interaction. The greatest Mediterranean corn borer population was observed in full irrigation (I-100) and the lowest population was observed in excessive water deficit (I-35) treatment. Mediterranean corn borer preferred the genotypes (P1429) with high fatty acid contents. It was concluded that genotypes should be tested under water-stressed and non water-stressed conditions for resistance to Mediterranean corn borer and alive larva, tunnel length and fatty acids could be used as screening parameters.
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    Öğe
    Yield and Water Use of Eggplant (Solanum melongena L.) Under Different Irrigation Regimes and Fertilizers
    (Univ Namik Kemal, 2021) Ali, Mahmud; Gencoglan, Cafer; Gencoglan, Serpil; Ucak, Ali Beyhan
    This study was conducted in Bandirma (Balikesir, Turkey) during the growing season of the plant in 2017 and 2018 to determine the effect of four levels of irrigation water and three kinds of fertilizer on yield and water use of field-grown eggplant (solanum melongena). Treatments included four irrigation regimes, which were 100% (I-100, control), 80% (I-80), 60% (I-60), and 40% (I-40) of evaporation from Class A Pan and three different fertilizers, which were chemical fertilizer CHF; N, P, K (20-20-20+15 SO3) added as 40 kg da(-1) organic fertilizer (OF) added as 2000 kg da(-1) and developed organic fertilizer (DOF) added as 2000 kg da(-1). Total irrigation water of 305 mm and 360 mm were applied to I-100 irrigation treatment, in which water use was determined as 447 mm and 436 mm, respectively. In both experiment years, the effect of irrigation level on fruit yield was found to be significant statistically (p<0.05) but the effect of fertilizers treatments and irrigation x fertilizer interaction was insignificant (p>0.05). The highest yield with 3681and 4515 kg da(-1) was harvested from I100 irrigation treatment, and the lowest yield with 3021 and 2792 kg da(-1) from I40 irrigation treatment, respectively. As for fertilizer, the highest yield with 3462 and 3878 kg da(-1) was harvested from DOF, while the lowest yield with 3258 and 3629 kg d(a)-(1) from OF, respectively. Water use efficiency (WUE) ranged from 8.26 to 12.54 kg mm(-1) and irrigation water use efficiency (IWUE) from 11.9 to 25.68 kg mm(-1) in the experimental years. Thus, in irrigation programming, the Kcp3: 0.80 plant-pan coefficient and in fertilizer application, DOF is recommended for fieldgrown eggplant.