Online: ISSN 2784 – 0360 | ISSN – L 2784 – 0360 | Print: ISSN 2784 – 0379 ISSN-L 2784 – 0360

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Kolay Betül

Effect of Different Leonardite Doses and Cross-Sowing Methods on the Growth and Yield of Red Lentil

Dec 20, 2023 |

Betül Kolay, Ali Rıza Öztürkmen

ABSTRACT. This study was carried out to determine the effect of different cross-sowing methods and different doses of leonardite on the growth of red lentils under rain-fed conditions. Treatments consisted of different cross-sowing methods (control, 45° cross-sowing and 90° cross-sowing) and different leonardite doses (0, 500, 1000, 1500, 2000 and 2500 kg ha−1). The trial was carried out in Diyarbakır province in Türkiye. The same rate of leonardite was applied to the same plots for two consecutive years to observe the two-year effect of leonardite in the experiment, which was established with four replications according to the factorial experimental design in the 2018-2019 and 2019-2020 production seasons. A positive effect of leonardite application was observed on the number of nodules and fresh root weight in the first production season. The highest nodule number (11.84) was obtained with 2500 kg ha−1 and the highest fresh root weight (0.24, 0.25 and 0.24 g) was obtained at 500, 1000 and 1500 kg ha−1 doses, respectively. The highest plant height, number of main branches, and number of pod parameters were obtained at a dose of 1500 kg ha−1 in the second production season (36.63 cm, 3.95 and 17.43, respectively). The highest grain yield (889.5 kg ha−1), dry root weight (0.125 g) and number of nodules (50.01) were obtained at a dose of 1000 kg ha−1 in the second production season. It was determined that different sowing methods did not affect grain yield in either production season.

Keywords: cross-sowing; leonardite; red lentils.

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Evaluation of Cotton (Gossypium Spp.) Germplasm for Heat Tolerance under Normal and Late Planting Time

Oct 16, 2020 |

Emine Karademir, C. Karademir, B. Kolay, V. Sezener, H. Basal

ABSTRACT. The objective of this study was to determine cotton (Gossypium ssp.) germplasm for heat tolerance under normal and late planting time. For this aiming 200 cotton genotypes and five check varieties (Gloria, SG 125, Flash, Ozbek 105 and Candia) were evaluated under two different temperature regimes and experiments were conducted according to the augmented design with four blocks. Field studies were carried out at the GAP International Agricultural Research and Training Center’s experimental area in Diyarbakır, Turkey, in 2016 cotton growing season. In the study heat susceptibility index was used for discriminate to the genotypes for heat tolerance. Genotypes were classified into four groups based on the heat susceptibility index. The results of this study indicated that five cotton genotypes (TAM 139-17 ELS, CIM-240, Haridost, MNH-990 and AzGR-11835) were in highly heat tolerant, 28 genotypes were found heat tolerant, 56 genotypes were in the moderately heat tolerant and other 120 genotypes were observed susceptible for heat tolerance. Based on the heat susceptibility index, five cotton genotypes can be used as parent for heat tolerance improvement in the cotton breeding program where high temperature is a limiting factor for seed cotton yield.

Keywords: cotton; abiotic stress; susceptibility; resistance; yield.

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© by the authors; licensee Journal of Applied Life Sciences and Environment, Iasi, Romania. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)