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    Chemical Composition of the Essential Oils of some Achillea Species Growing Wild in Turkey
    (Friends Science Publ, 2010) Toncer, Ozlem; Basbag, Sema; Karaman, Sengul; Diraz, Emel; Basbag, Mehmet
    Native Achillea plants (A. biebersteinii, A. aleppica, A. tenuifolia, A. magnifica, A. cucullata) were collected from nine localities of Southeastern and Eastern of Turkey during the flowering period. The essential oils of five Achillea species were obtained by hydrodistillation and analysed by GC-MS. Generally the principal constituents of the oils were 1,8 cineol+ascaridol, camphor, isoascaridol, 1,8 cineol and camphor as A. biebersteinii, A. aleppica, A. tenuifolia, A. magnifica, A. cucullata, respectively. Chemical composition of essential oils of Achillea species are highly variable, which may be due to the differences in their chemical polymorphic structure and environmental conditions. (C) 2010 Friends Science Publishers
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    Combining ability and heterosis for earliness characters in line x tester population of Gossypium hirsutum L.
    (Bmc, 2007) Basbag, Sema; Ekinci, Remzi; Gencer, Oktay
    The objective of this study was to estimate the general combining ability of the parents and specific combining ability of hybrids for earliness traits for line selection. Inheritance and interrelationships of earliness characters were evaluated in a line x tester design. Three intermediate- early-maturing female (lines) which are grown regionally and four early-maturing males (testers) cotton varieties were crossed in 2003. The twelve F-1 and seven parents were planted randomized block design with three replications in 2004. For each earliness trait, general combining ability (GCA) and specific combining ability and gene effects were estimated using the line x tester method of analysis and also were determined heterosis and narrow sense heritability. Parents and their hybrids (except the monopodial branch) were significant for all the earliness traits studied. Estimates of variance due to GCA and SCA and their ratio revealed predominantly non- additive gene effects for date of first square, date of first flowers and harvested rate of first picking. Among the lines, Ersan 92 and Maras 92 and among the testers Acala Royal was found to be the best general combiners for most of the earliness characters. Four out of twelve crosses namely Ersan 92 x Chirpan 603, Ersan 92 x Acala Maxa, Maras 92 x Acala Royal and Nazilli 87 x Acala Royal were found to be the best crosses for investigated earliness characters.
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    Correlations between Some Physio-Morphological Formations and Yield on Okra and Normal Leaf Cottons
    (Ankara Univ, Fac Agr, 2008) Ekinci, Remzi; Gencer, Oktay; Basbag, Sema
    The leaf shape, size, area and number of leaf per plant of cotton are factors which effect seed yield via photosynthetic activity. In the study, the four cotton cultivars, two normal leaf shape and two okra leaf shape, were used as material. The number of leaf, mean of individual leaf area, leaf area index, leaf chlorophyll content, plant height, number of monopodial and sympodial branches and cotton seed yield were investigated. The coefficient correlation between cotton seed yield and all characters was analyzed. The normal leaf shape cultivars were the higher than okra leaf shape cultivars for mean of individual leaf area, leaf area index, plant height, number of sympodial branches. The highest chlorophyll content (50.54) was for Maras 92, but Dicle 2000 had the minimum content with 46.44. Maras 92 variety, okra leaf shape cotton cultivar, for cotton seed yield was the highest with 509.93 kg da(-1), Siokra (1)/(4) had the minimum cotton seed yield (365.56). Seed yield was pozitive correlation with leaf area index, but was negative correlation with number of leaf per plant.
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    DETERMINATION THE EFFECT OF DEFOLIATION TIMING ON COTTON YIELD AND QUALITY
    (Univ Zagreb, Fac Agriculture, 2007) Karademir, Emine; Karademir, Cetin; Basbag, Sema
    This study was carried out for determining the effect of different application times at 40, 50, 60 and 70 % boll opening and untreated plot of the defoliant on cotton yield, earliness and technological properties in Southeast Anatolia Region conditions in Turkey. Maras 92 cotton variety was used as plant material in the experiment field of the Southeast Anatolia Agricultural Research Institute during 2000-2001. Defoliant was including thidiazuron + diuron chemical substance. The result of this study showed that ginning percentage, 100 seed weight, seed germination percentage, fiber fineness, fiber length, fiber strength, reflectance, elongation and seed cotton yield were not affected by the treatment; plant height and first picking percentage in 2001, fiber uniformity in 2000 were 5 % significantly affected. This study showed that application of defoliant didn't affect significantly yield and technological properties of cotton and after 40 % boll opening the defoliant can be used.
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    Effects of climatic factors on cotton production in semi-arid regions - A review
    (Gaurav Soc Agricultural Research Information Centre-Aric, 2010) Cetin, Oner; Basbag, Sema
    Cotton is the world's most important fiber crop and the second most important oil seed crop. Fruiting of cotton plant is determined and influenced by cultivars, climatic conditions, management practices and pests. Climatic factors such as temperature, wind, rainfall and relative humidity significantly affect the boll production of cotton. High temperature, especially more than 30 degrees C, reduces the boll retention and thus final yield. Strong winds may also reduce the yield due to boll shedding. Likewise continuous rain during flowering and boll opening will impair the pollination and may thus reduce fiber quality. However, increasing amount of rainfall in early growing period of cotton can result in higher yield. In addition, the water requirement of cotton depends on climate and length of the total growing period. In this paper, effects of climatic factors on cotton yield in semi-arid regions are evaluated and discussed based. on carried out some currently studies.
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    Effects of different temperatures and duration on germination of caper (Capparis ovata) seeds
    (Triveni Enterprises, 2009) Basbag, Mehmet; Toncer, Ozlem; Basbag, Sema
    Caper seed has poor germination because of the seed coat dormancy. Germination of caper seeds are complex traits affected by a wide range of internal and environmental influences. The effects of temperature preconditioning and period on germination of Capparis ovate were examined. Experiments were conducted in order to investigate germination behaviour of caper seeds subjected to different temperature and duration. The experiment revealed that the different temperature treatments were effective on mean germination percentage. The highest mean germination were obtained at 0 degrees C 29.52% and 10 degrees C with 27.17% and the lowest mean germination were obtained at control seeds with 8.39%. Dry heat treatments effected germination rate, but it was not enough for removing germination obstacle of caperseed completely.
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    THE EFFECTS OF HIGH TEMPERATURE STRESS ON SOME AGRONOMIC CHARACTERS IN COTTON
    (Pakistan Botanical Soc, 2017) Ekinci, Remzi; Basbag, Sema; Karademir, Emine; Karademir, Cetin
    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.
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    Heterotic Effects and Analyses of Correlation Relating to Some Characters on Cotton
    (Ankara Univ, Fac Agr, 2008) Basbag, Sema; Ekinci, Remzi; Gencer, Oktay
    This research was conducted at the Dicle University Faculty of Agriculture Experimental Area of Field Crops. The objectives of the study were to investigate the heterotic effects of earliness and agronomical and quality characters on F-1 and F-2 generations of cotton plant. In 2003, F-1 generation, and in 2004 F-2 generation were obtained, and in 2005, F-1 and F-2 generations were grown with parents in randomized block design with three replications. The highest heterosis was observed in the monopodial branch (-58.33%), and number of first sympodial branch (-30.85%), height of first sympodial branch (-13.87%), date of first square (-13.87%). However, the highest F-2 depression and F-2 deviations were determined the same characters.
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    Heterotic Effects for Lint Yield in Double Cross Hybrids on Cotton
    (Bitki Islahçıları Alt Birliği, 2016) Ekinci, Remzi; Basbag, Sema; Gencer, Oktay
    Double-crosses, compared to the single-crosses, have wider genetic diversity hence possess ecologically wider spans and are more adaptable to environmental conditions as mixture of genotypes have better chances of success to cope up with varied environmental conditions. This study was carried out in order to determine the heterotic effects of investigated traits in the population comprising F1 generation from 45 double crosses developed through double cross breeding method, in Diyarbakır ecological conditions in 2010. The trials were conducted using complete block design (RCBD) with three replications. In the study lint yield was determined. Eight hybrid cotton combinations had positive and high values for heterosis and heterobeltiosis in terms of lint yield (kg ha-1) . These were identiŞed as promising for future studies that need to be taken into consideration in these hybrid combinations
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    Investigation of some yield and fibre quality characteristics of interspecific hybrid (Gossypium hirsutum L.xG-barbadense L.) cotton varieties
    (Blackwell Publishing, 2007) Basbag, Sema; Gencer, Oktay
    Interspecific hybrid cottons (Gossypium hirsutum L.xG. barbadense L.) have great both yield and quality potential. This study was conducted to determine potential yields and quality characteristics of hybrid cotton varieties in southeastern Anatolia region of Turkey. The experiment was set out a completely randomized block design with four replications during 2003 and 2004 at University of Dicle, Faculty of Agriculture Experimental Field. Seven interspecific hybrid cotton varieties (48-08, Sevilla, Europe, Ica, Etna, 14-08 and Acalpi) which were obtained from Israel, and commonly grown varieties in this region, non-hybrid cotton varieties, GW Teks and DP-Opal were used as the materials of the study. Difference among the cultivars was significant for all traits except sympodial branch. Maximum number of boll and lint yield was 20.18 n plant(-1) and 1685.8 kg ha(-1) from interspecific hybrid cotton Ica, while interspecific hybrid cotton Europe recorded the lowest number of boll and lint yield. Interspecific hybrid cotton varieties showed higher value for fibre length, fibre fineness and fibre strength than non-hybrid cotton varieties. The longest fibres were obtained from Acalpi and Etna (34.08 and 33.88 mm), while non-hybrid varieties, DP-Opal and GW-Teks, had the lowest fibre length, 28.50 and 30.03mm, respectively. The finest fibres obtained from Ica and 48-08 (3.42 and 3.45 mic.), the strongest fibres from Etna and Acalpi (40.07 and 40.23 g tex(-1)), and most elongation fibres from Acalpi (8.00%) and Sevilla (7.45%). Lint yield correlated positive and significant with fiber length.
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    Path Coefficient Analysis between seed cotton yield and some characters in cotton (Gossypium hirsutum L.)
    (Triveni Enterprises, 2010) Ekinci, Remzi; Basbag, Sema; Gencer, Oktay
    This study was carried out to determine direct and indirect effects of some characters (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 characters 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 characters should be considered important.
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    SCREENING FOR HIGH-TEMPERATURE TOLERANT COTTON (GOSSYPIUM SPP.) BY USING SOME PHYSIO-MORPHOLOGICAL LEAF TRAITS
    (Parlar Scientific Publications (P S P), 2018) Ekinci, Remzi; Basbag, Sema; Karademir, Emine; Karademir, Cetin
    One hundred sixty cotton genotypes obtained from genetic stocks were evaluated for high temperature tolerance based on some physio-morphological leaf traits under field conditions and controlled condition. Genotypes showed differences for all investigated traits. In the study, stoma] density ranged from 83.49-128.35 stomata. (mm(2))(-1), stomata] conductance ranged from 140.77-394.90 mmol.m(-2).s(-1), stoma] width ranged from 92.39-154.01 mu m, stomatal rate of width/length ranged from 0.42-0.58, canopy temperature ranged from 20.24-52.00 degrees C, leaf area ranged from 67.50-173.05 cm(2), leaf SPAD value ranged from 31.80-63.73, and leaf photosynthesis yield ranged from 12.72-33.05 The results showed that high temperature stress did not influence stoma numbers, whereas it decreased stomatal conductance, stomatal width, stomatal width/length, leaf area, leaf SPAD and leaf photosynthesis yield; and that it increased canopy temperature values. The Fantom was determined to be tolerant with respect to stomata] conductance trait and the Tropikal-225 genotype with respect to stoma width and width/length traits.