Yazar "Ekinci R." seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • [ X ]
    Öğe
    The effects of high temperature stress on some agronomic characters in cotton
    (Pakistan Botanical Society, 2017) Ekinci R.; Basbağ S.; Karademir E.; Karademir Ç.
    High temperature is one of the abiotic stress causing morphological, physiological, biochemical and molecular changes on plant growth and productivity. One hundred and sixty cotton genotypes obtained from genetic stocks was evaluated for high temperature tolerance based on some agronomic characters under field and controlled conditions. Genotypes showed differences for all investigated characters. Plant height, node number and HNR ranged from 68.38-136.45 cm, 18.22-30.10 number.plant-1, 2.89-6.31 (HNR) respectively. Maximum and minimum values in terms of number of sympodial branches, boll abscission at first position, number of seed and seed-cotton yield changed from 11.09-24.42 number.plant-1; 4.17%-20.80%; 20.39-44.11 number.boll-1 and 5.74-60.30 gr.plant-1 respectively. Differences among genotypes were statistically significant for all characters under high temperature stress conditions. High temperature stress was declined the cotton plant development, the decline are important for cotton breeders and cotton breeding programs on the genotypes less affected from high temperature. © 2017, Pakistan Botanical Society. All rights reserved.
  • [ X ]
    Öğe
    The impact of different seeding dates on seed yield of soybean
    (2012) Karaaslan D.; Hakan M.; Ekinci R.; Boydak E.
    This study was conducted to determine the effect of six different seeding dates (15th April, 1stMay, 15th May, 1st June, 15th June and 30th June) on the yield and yield components of the soybean. The experimental design was a randomized complete block with split plot having four replicates. The studies were conducted at GAP International Agricultural Research and Training Center in 2004, 2005 and 2006 years. The results indicated that the cultivars were significantly influenced by the different seeding dates for the traits of plant height (PH), first pod height (FPH), pod number (PN), weight for 100 seeds (SW), seed yield (SY), oil yield (OY) and protein yield (PY), It was observed that cv. NE3399 had the highest seed yield while the lowest seed yield was given by UMUT2002.
  • [ X ]
    Öğe
    Investigation of some parameters affecting the germination of cotton seed in cool conditions
    (Parlar Scientific Publications, 2019) Ekinci R.
    Cotton is grown in temperate conditions. It is important to investigate how cotton genotypes behave under cool conditions during germination. This study aims to determine the factors affecting the germination of cotton seeds under cool temperature conditions and to relate germination percentages to some seed and fiber characteristics of cotton varieties under cool temperature conditions in the laboratory. The experiment was conducted with 4 replications according to randomized plot design and 14 cotton species (Teks, Stoneville-453, Stone-ville-468, Deltaopal, Deltapine-499, Deltapine-332, BA-119, Carmen, Sayar-314, SureGrow-125, Fan-tom, Berke, Flora and Gloria) were used. The relationship between the germination percentages of the cotton varieties and 100 seed weights (g.100 seed-1), seed density (g.ml-1), water imbibition rate (%), fiber fineness (mic), fiber length (mm), ginning percent (%) and seed cotton yields (kg.ha-1) were determined at cool (18 oC) and normal (30 oC) temperatures in the plant growth cabinet. The germination rate at 30 oC, which was considered the normal germination temperature for cotton plant, was the highest on the 7th day and germination count was the highest on the 14th day when it was germinated at 18 oC which was considered a cool condition. Vigor index of Deltapine-499, Fantom, Stoneville-453, Berke and SureGrow-125 varieties were higher than the others in cool germination conditions (18 °C). When the temperature of germination decreased, the length of germination period was increased in cotton seeds. Germination percentage of the seeds at cool condition was positively correlated with 100 seed weight (r=+0.76, p<0.01), seed density (r=+0.46; p<0.01), seed cotton yield (r=+0.53; p<0.01), fiber fineness (r=+0.77, p<0.01) and water imbibition rate (r=+0.83; p<0.01) while it was negatively correlated with fiber length (r=-0.61; p<0.01) and ginning percent (r=-0.10; p=0.46). It is advisable to take into consideration the parameters such as 100 seed weight, seed density, water imbibition rate, and fiber fineness as an indicator for seed maturity for high germination percentage and vigour. © by PSP.
  • [ X ]
    Öğe
    Path coefficient analysis between seed cotton yield and some characters in cotton (Gossypium hirsutum L)
    (Triveni Enterprises, 2010) Ekinci R.; Basbag S.; Gencer O.
    This study was carried out to determine direct and indirect effects of some charactrs single leaf area, leaf SPAD value, number of nods, number of sympodial branches, number of monopodial branches, single boll weight, number of bolls) on seed cotton yield. The experiment was carried out with four cotton varieties, two of which okra-leaf (Adana 98, Siokra 1/4) and two of which normal-leaf (Teks and Stoneville 453) cotton (Gossypium hirsutum L) and was conducted the randomized block design with 4 replications. In order to increase seed cotton yield In the studies of breeding program and selection orderly leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls charactem determined that must be high. Results showed that in order to increase seed cotton yield in the studies of breeding program and selection the highness of leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls charactem should be considered important. © Triveni Enterprises, Lucknow (India).