Turkish Journal of Agriculture: Food Science and Technology, Apr 27, 2020
The aim of this study was to investigate the effects of exogenous Melatonin (100, 300 and 500 µM)... more The aim of this study was to investigate the effects of exogenous Melatonin (100, 300 and 500 µM) and L-tryptophan (125, 250, 375 ppm) applications on some growth parameters of lettuce plants grown under salt stress. The study was carried out under semi-controlled greenhouse conditions in spring (March/April) season. The exogenous applications to lettuce plants were carried out two times as foliar spraying. Salt stress was generated by adding NaCl (0 mM, 100 mM, 200 mM) to irrigation water. The complete randomized design was used with three replications in this experiment. At the end of the study, it was found that the highest doses of exogenous applications had the highest effect on the parameters of the number of leaves, salinity necrosis, fresh leaf weight, fresh root weight, and total surface area of lettuce plants under 200 mM salinity condition. When the effects of the subtract on these values were compared, the effect of melatonin was found to be more pronounced. Leaf width, leaf length, and leaf surface temperature values were not affected by the external application. These values only changed depending on salt concentration. As a result of the study, it was concluded that the application of 500 µM melatonin significantly increased salt tolerance in lettuce plants. However, in order to reach a more general conclusion, the dose ranges and genotype/variety numbers should be increased.
This study was conducted to investigate the effects of NaCI and CaCl 2 level on germination of so... more This study was conducted to investigate the effects of NaCI and CaCl 2 level on germination of some onion genotypes. Seeds of 'Kantartopu-3', 'Akgün-12', 'İmrali Kirmasi-15', 'Metan-88' and 'Beyaz Bilek' were used. Electrical conductivities (EC) of salt solutions were 1.2, 2.4, 4.8 and 9.6 dS m-1 and distilled water (0 dS m-1) served as control. Germination percentage (%), mean germination time (days), shoot length (mm) and seedling fresh and dry weight (mg) were measured at 12 days after sowing. Genotypes showed different responses to NaCI and CaCl 2. Increased salinity levels resulted in decreased germination, inhibition of seedling growth and increased mean germination time. Varieties showed different responses for different parameters. MATERIALS AND METHODS The germination of several local onion cultivars in Turkey was tested at different NaCl and CaCl 2 concentrations. 'Kantartopu-3' (Knt.), 'Akgün-12' (Akg.) and 'İmrali Kirmasi-15' (Imr.) cultivar seeds were obtained from the Atatürk Central Horticultural Research Institute in Yalova. 'Metan-88' (Mtn.) and 'Beyaz Bilek' (Bbl.) seeds were provided by the MTN Seed Company in Balıkesir, Turkey.
The subgenus Allium section Allium includes economically important species such as onion (Allium ... more The subgenus Allium section Allium includes economically important species such as onion (Allium cepa L.), leek (A. ampeloprasum var. porrum L.) and chives (A. schoenoprasum L.). These species have a biennial habit and many cultivars are open pollinated; and high levels of heterozygosity must be maintained. The Allium umbel consists of a few, to hundreds of perfect flowers of per umbel. These flowers are too small for synthetic pollination studies and due to the large-scale emasculation it is not practical so the development of hybrid cultivars is economically feasible using systems of cytoplasmic-genic male sterility (CMS). Male sterile plants, which have not got any fertile pollen, incapable of self-pollination so any seed produced must result from cross-pollination. Allium hybrid production requires the development of malesterile, maintainer and pollinator lines with good specific combination ability. This review outlines the using male sterility feature in hybrid breeding program for Alliums especially for onions.
After centuries of improving crop plants by breeding for desirable traits, agricultural scientist... more After centuries of improving crop plants by breeding for desirable traits, agricultural scientists are now using the tools of molecular biology and genetic engineering to develop transgenic plants with the desired genes. Transfer of suitable genes from one organism to another is possible due to developments in biotechnology. This technology is used in changing and improvement of plants and animals for different purposes. Onion (Allium cepa L.) and its close relatives garlic (A. sativum), leek (A. porrum), and chives (A. schoenoprasum), family Liliaceae, are common vegetable crops throughout the world. These species have a biennial habit and many cultivars are open pollinated; and high levels of heterozygosity must be maintained. Interspecific hybrids are sterile or have poor fertility causing problems in the transfer of characteristics between cultivars or species. While considerable progress has been made in these plants improvement through conventional breeding programs, genetic engineering offers additional possibilities to enhance several features in Allium spesies especially onion. This review outlines the potential for developing a reliable transformation system for Allium.
Drought is one of the major limitations for vegetable growth and productivity all over the World.... more Drought is one of the major limitations for vegetable growth and productivity all over the World. In this study the effects of drought stress on proline, chlorophyll a/b, total chlorophyll and carotenoids were investigated in some onion (Allium cepa L.) cultivars (Kantartopu-3, Akgun-12 and Texas Early Grano) under the early plant growth phase. Seeds were germinated in peat material and transferred to plastic pots after 21 days of sowing. The plants have been grown in vermiculite by "substrate culture" technique. Three different irrigation applications (pot/field capacity (PC) PC-90 (90% of PC), PC-70 (70% of PC), PC-40 (40% of PC) were tested under greenhouse conditions. After six weeks of transferring, leaf parts were isolated and studied for various indices. Irrigation rates affected significantly the all parameters of onion. The results indicated that drought increased accumulation of proline in onion seedlings, while decreased the content of chlorophyll and carotenoid.
This study was conducted to determine relationship between some wild pea accessions (Pisum fulvum... more This study was conducted to determine relationship between some wild pea accessions (Pisum fulvum L., P. abyssinicum L., P. sativum var. elatius), local varieties (P. sativum var. sativum L. and P. sativum var. arvense L.) and commercial varieties "Boogie" and "Rondo". The genetic diversity was evaluated with 14 simple sequence repeat markers and 50 morphological characters. The results of morphology indicated that, genotypes showed a clustering pattern based on the taxonomic groups when considering only flower characters and all morphological characters. During the molecular study, a total of 48 alleles were obtained. Used all primers showed polymorphism in accessions. The number of alleles varied between 2-6 among 14 SSR loci revealing the polymorphism level of markers. Similarity coefficient (Dice's) ranged from 0.100 to 0.800 with an average of 0.378. A dendrogram grouped the 15 genotypes into two main clusters. This information can be utilized for genetic analysis, genotype identification from different sources and development of improved germplasm.
HANCI, F. and E. CEBECI, 2015. Comparison of salinity and drought stress effects on some morpholo... more HANCI, F. and E. CEBECI, 2015. Comparison of salinity and drought stress effects on some morphological and physiological parameters in onion (Allium cepa l.) during early growth phase.
Although several works have been published on abilities of Trichoderma harzianum strains to reduc... more Although several works have been published on abilities of Trichoderma harzianum strains to reduce the effects of some abiotic stress factors, their effects on salinity conditions have not been explained. This study was conducted to investigate the effects of T. Harzianum T22 Rifai KRL-AG2 on germination of Onion (Allium cepa L.) seeds under salinity conditions which prepared using NaCl. The seeds of 'Kantartopu-3' cultivar were treated with different concentrations of T. harzianum strain T22. Seeds of onion were tested at germination salinity of 0, 2.4, 4.8 and 9.8 dSm-1 in darkness. Germination percentage (%), mean germination time (days), shoot length (mm) and seedling fresh weight (mg) were measured at 12 days after sowing. Treatments of T. Harzianum strain T22 showed different responses to measured parameters under abiotic stress conditions.
Abiyotik stres faktorlerinin onemi, kuresel isinmaya bagli olarak son yillarda gozlenen duzensiz ... more Abiyotik stres faktorlerinin onemi, kuresel isinmaya bagli olarak son yillarda gozlenen duzensiz iklim verileri ile belirgin sekilde ortaya cikmaktadir. Bu faktorlerden, sogan (Allium cepa L.) yetistiriciligi icin en onemli olanlari, toprak tuzlulugu ve kurakliktir. Sogan, kulturu yapilan bitkiler icerisinde, toprak tuzluluguna en hassas olanlardan biridir. Buna ek olarak, yetistirme doneminin belli asamalarinda, su ihtiyaci oldukca kritik olan bir bitkidir. Bu calismada, sogan yetistiriciliginde, tuzluluk ve kuraklik kosullarinda ortaya cikan sonuclar, cesitli calismalardan derlenmistir.
Effects of inbreeding on purple carrot's (Daucus carota ssp. sativus var. atrorubens Alef) seed y... more Effects of inbreeding on purple carrot's (Daucus carota ssp. sativus var. atrorubens Alef) seed yield and quality
Cebeci-Hanci: Effects of growing location and cold storage on nutritional values of purple carrot... more Cebeci-Hanci: Effects of growing location and cold storage on nutritional values of purple carrot (Daucus carota ssp. Sativus var. Atrorubens Alef) genotypes-15245
Turkish Journal of Agriculture: Food Science and Technology, Apr 27, 2020
The aim of this study was to investigate the effects of exogenous Melatonin (100, 300 and 500 µM)... more The aim of this study was to investigate the effects of exogenous Melatonin (100, 300 and 500 µM) and L-tryptophan (125, 250, 375 ppm) applications on some growth parameters of lettuce plants grown under salt stress. The study was carried out under semi-controlled greenhouse conditions in spring (March/April) season. The exogenous applications to lettuce plants were carried out two times as foliar spraying. Salt stress was generated by adding NaCl (0 mM, 100 mM, 200 mM) to irrigation water. The complete randomized design was used with three replications in this experiment. At the end of the study, it was found that the highest doses of exogenous applications had the highest effect on the parameters of the number of leaves, salinity necrosis, fresh leaf weight, fresh root weight, and total surface area of lettuce plants under 200 mM salinity condition. When the effects of the subtract on these values were compared, the effect of melatonin was found to be more pronounced. Leaf width, leaf length, and leaf surface temperature values were not affected by the external application. These values only changed depending on salt concentration. As a result of the study, it was concluded that the application of 500 µM melatonin significantly increased salt tolerance in lettuce plants. However, in order to reach a more general conclusion, the dose ranges and genotype/variety numbers should be increased.
This study was conducted to investigate the effects of NaCI and CaCl 2 level on germination of so... more This study was conducted to investigate the effects of NaCI and CaCl 2 level on germination of some onion genotypes. Seeds of 'Kantartopu-3', 'Akgün-12', 'İmrali Kirmasi-15', 'Metan-88' and 'Beyaz Bilek' were used. Electrical conductivities (EC) of salt solutions were 1.2, 2.4, 4.8 and 9.6 dS m-1 and distilled water (0 dS m-1) served as control. Germination percentage (%), mean germination time (days), shoot length (mm) and seedling fresh and dry weight (mg) were measured at 12 days after sowing. Genotypes showed different responses to NaCI and CaCl 2. Increased salinity levels resulted in decreased germination, inhibition of seedling growth and increased mean germination time. Varieties showed different responses for different parameters. MATERIALS AND METHODS The germination of several local onion cultivars in Turkey was tested at different NaCl and CaCl 2 concentrations. 'Kantartopu-3' (Knt.), 'Akgün-12' (Akg.) and 'İmrali Kirmasi-15' (Imr.) cultivar seeds were obtained from the Atatürk Central Horticultural Research Institute in Yalova. 'Metan-88' (Mtn.) and 'Beyaz Bilek' (Bbl.) seeds were provided by the MTN Seed Company in Balıkesir, Turkey.
The subgenus Allium section Allium includes economically important species such as onion (Allium ... more The subgenus Allium section Allium includes economically important species such as onion (Allium cepa L.), leek (A. ampeloprasum var. porrum L.) and chives (A. schoenoprasum L.). These species have a biennial habit and many cultivars are open pollinated; and high levels of heterozygosity must be maintained. The Allium umbel consists of a few, to hundreds of perfect flowers of per umbel. These flowers are too small for synthetic pollination studies and due to the large-scale emasculation it is not practical so the development of hybrid cultivars is economically feasible using systems of cytoplasmic-genic male sterility (CMS). Male sterile plants, which have not got any fertile pollen, incapable of self-pollination so any seed produced must result from cross-pollination. Allium hybrid production requires the development of malesterile, maintainer and pollinator lines with good specific combination ability. This review outlines the using male sterility feature in hybrid breeding program for Alliums especially for onions.
After centuries of improving crop plants by breeding for desirable traits, agricultural scientist... more After centuries of improving crop plants by breeding for desirable traits, agricultural scientists are now using the tools of molecular biology and genetic engineering to develop transgenic plants with the desired genes. Transfer of suitable genes from one organism to another is possible due to developments in biotechnology. This technology is used in changing and improvement of plants and animals for different purposes. Onion (Allium cepa L.) and its close relatives garlic (A. sativum), leek (A. porrum), and chives (A. schoenoprasum), family Liliaceae, are common vegetable crops throughout the world. These species have a biennial habit and many cultivars are open pollinated; and high levels of heterozygosity must be maintained. Interspecific hybrids are sterile or have poor fertility causing problems in the transfer of characteristics between cultivars or species. While considerable progress has been made in these plants improvement through conventional breeding programs, genetic engineering offers additional possibilities to enhance several features in Allium spesies especially onion. This review outlines the potential for developing a reliable transformation system for Allium.
Drought is one of the major limitations for vegetable growth and productivity all over the World.... more Drought is one of the major limitations for vegetable growth and productivity all over the World. In this study the effects of drought stress on proline, chlorophyll a/b, total chlorophyll and carotenoids were investigated in some onion (Allium cepa L.) cultivars (Kantartopu-3, Akgun-12 and Texas Early Grano) under the early plant growth phase. Seeds were germinated in peat material and transferred to plastic pots after 21 days of sowing. The plants have been grown in vermiculite by "substrate culture" technique. Three different irrigation applications (pot/field capacity (PC) PC-90 (90% of PC), PC-70 (70% of PC), PC-40 (40% of PC) were tested under greenhouse conditions. After six weeks of transferring, leaf parts were isolated and studied for various indices. Irrigation rates affected significantly the all parameters of onion. The results indicated that drought increased accumulation of proline in onion seedlings, while decreased the content of chlorophyll and carotenoid.
This study was conducted to determine relationship between some wild pea accessions (Pisum fulvum... more This study was conducted to determine relationship between some wild pea accessions (Pisum fulvum L., P. abyssinicum L., P. sativum var. elatius), local varieties (P. sativum var. sativum L. and P. sativum var. arvense L.) and commercial varieties "Boogie" and "Rondo". The genetic diversity was evaluated with 14 simple sequence repeat markers and 50 morphological characters. The results of morphology indicated that, genotypes showed a clustering pattern based on the taxonomic groups when considering only flower characters and all morphological characters. During the molecular study, a total of 48 alleles were obtained. Used all primers showed polymorphism in accessions. The number of alleles varied between 2-6 among 14 SSR loci revealing the polymorphism level of markers. Similarity coefficient (Dice's) ranged from 0.100 to 0.800 with an average of 0.378. A dendrogram grouped the 15 genotypes into two main clusters. This information can be utilized for genetic analysis, genotype identification from different sources and development of improved germplasm.
HANCI, F. and E. CEBECI, 2015. Comparison of salinity and drought stress effects on some morpholo... more HANCI, F. and E. CEBECI, 2015. Comparison of salinity and drought stress effects on some morphological and physiological parameters in onion (Allium cepa l.) during early growth phase.
Although several works have been published on abilities of Trichoderma harzianum strains to reduc... more Although several works have been published on abilities of Trichoderma harzianum strains to reduce the effects of some abiotic stress factors, their effects on salinity conditions have not been explained. This study was conducted to investigate the effects of T. Harzianum T22 Rifai KRL-AG2 on germination of Onion (Allium cepa L.) seeds under salinity conditions which prepared using NaCl. The seeds of 'Kantartopu-3' cultivar were treated with different concentrations of T. harzianum strain T22. Seeds of onion were tested at germination salinity of 0, 2.4, 4.8 and 9.8 dSm-1 in darkness. Germination percentage (%), mean germination time (days), shoot length (mm) and seedling fresh weight (mg) were measured at 12 days after sowing. Treatments of T. Harzianum strain T22 showed different responses to measured parameters under abiotic stress conditions.
Abiyotik stres faktorlerinin onemi, kuresel isinmaya bagli olarak son yillarda gozlenen duzensiz ... more Abiyotik stres faktorlerinin onemi, kuresel isinmaya bagli olarak son yillarda gozlenen duzensiz iklim verileri ile belirgin sekilde ortaya cikmaktadir. Bu faktorlerden, sogan (Allium cepa L.) yetistiriciligi icin en onemli olanlari, toprak tuzlulugu ve kurakliktir. Sogan, kulturu yapilan bitkiler icerisinde, toprak tuzluluguna en hassas olanlardan biridir. Buna ek olarak, yetistirme doneminin belli asamalarinda, su ihtiyaci oldukca kritik olan bir bitkidir. Bu calismada, sogan yetistiriciliginde, tuzluluk ve kuraklik kosullarinda ortaya cikan sonuclar, cesitli calismalardan derlenmistir.
Effects of inbreeding on purple carrot's (Daucus carota ssp. sativus var. atrorubens Alef) seed y... more Effects of inbreeding on purple carrot's (Daucus carota ssp. sativus var. atrorubens Alef) seed yield and quality
Cebeci-Hanci: Effects of growing location and cold storage on nutritional values of purple carrot... more Cebeci-Hanci: Effects of growing location and cold storage on nutritional values of purple carrot (Daucus carota ssp. Sativus var. Atrorubens Alef) genotypes-15245
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