Pelargonium L'Hér. (Sardunya) dünyada zengin çeşitliliğe sahiptir. Gerek çiçeklerinin rengi ve fo... more Pelargonium L'Hér. (Sardunya) dünyada zengin çeşitliliğe sahiptir. Gerek çiçeklerinin rengi ve formu, gerekse yapraklarının kokusu ve biçimiyle, dünyanın çeşitli yerlerinde süs ve aromatik bitki olarak ilgi ve beğeni kazanmıştır. Flora of Turkey yazarı Davis'e göre Anadolu'da doğal olarak yetişen iki sardunya türü bulunmaktadır; "Pelargonium endlicherianum Fenzl" ve "Pelargonium quercetorum Agnew". Makalede taksonların betimi zenginleştirilmiş ve dağılımları belirtilmiştir. Ardından taksonların süs bitkisi kullanım potansiyeli hakkında bilgi verilmiştir.
Roses are one of the most important flowers grown in Van lake basin. A lot of rose species and ol... more Roses are one of the most important flowers grown in Van lake basin. A lot of rose species and old roses were grown in the tradition of the Van garden and have been one of the indispensable elements in Van garden culture. Rosa × damascena Miller (Gül-i Muhammed) has also taken an important place in the traditional Van cuisine. Altogether 12 rose taxa that were identified in Anatolia are found in Van lake basin. Four of them are cultivated in the gardens of the region: Rosa dumalis Bechs, Rosa canina L., Rosa heckeliana Tratt. ssp. vanheurckiana (Crépin) Ö. Nilsson and Rosa pisiformis (Christ) D. Sosn. Bieb. The aim of this study is to evaluate and compare the contents of the essential oils obtained from the traded Isparta rose oil (Rosa × damascene var. trigintipetala) with the contents in Gül-i Muhammed rose oil (Rosa × damascena) using GC and GC/MS. Germination of this species' achenes grown in Van region is delayed due to a hard woody pericarp. Cellulose and lignin ratios of the species achenes were determined.
While cut narcissus is a popular ornamental crop in Turkey, there is almost no production of pot-... more While cut narcissus is a popular ornamental crop in Turkey, there is almost no production of pot-grown narcissus. In this study the aim was to determine suitable cultivars for pot cultivation and investigate the effects of pre-cooling treatments on growth and flowering. Bulbs (grade 13-14cm circumference) of eight cultivars were grown in pots. Before planting, three pre-planting bulb storage treatments were applied: 1) 17-20°C for 9 weeks followed by 9°C for 6 weeks; 2) ambient (fluctuating) temperatures for 9 weeks followed by 9°C for 6 weeks; 3) ambient (fluctuating) temperatures for 15 weeks (control). The treated plants were then grown under greenhouse conditions. Flower stem length, flower length, leaf length, first flowering time and flowering period were affected by the treatments. Treatment 1 gave the most favourable results: flowering was 7,6 days earlier than in the control and quality was better. Five cultivars-'Dutch Master', 'Strong Gold', 'Ice Follies', 'Golden Harvest' and 'Professor Einstein'-were determined as suitable cultivars for pot plant production.
Nemrut Stratovolcano is located on the west coast of Lake Van in Eastern Anatolia. Nemrut Stratov... more Nemrut Stratovolcano is located on the west coast of Lake Van in Eastern Anatolia. Nemrut Stratovolcano has completed its geological evolution in three main phases: Pre-Caldera Phase, Post-Caldera Phase and Late Phase. In this process, many changes were observed in the area where Caldera is located. It is observed that there have been shifts on the last pyramidal units of Caldera, which is located on the road between Tatvan and Nemrut Caldera. These units, called base spreading products, are located on rhyolitic obsidian and trachies. The unit covers an area of 22 km2 in the eastern parts of the Nemrut Caldera and has an average thickness of 15 m. In this study, the investigations in the area revealed that the pyroclastics were free of cohesion, and the flows and drifts arising from the surface waters. Depending on the thickness of the mass, these flows continue along the surface of the slope towards the deep and threaten the existing road. In this context, it is aimed to determine the deteriorations in the transportation road and to contribute to the fact that this area, which is based on the historical stages, can be a sustainable and permanent natural monument with some landscaping works.
Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi, Dec 30, 2022
The gardening of ornamental plants comes back to ancient times (Urartians). Nowadays the gardenin... more The gardening of ornamental plants comes back to ancient times (Urartians). Nowadays the gardening of ornamental plants is done worldwide as in the Van provinces of Türkiye. Old and traditional gardens can be seen in different regions of this province naturally. Among these plants, Rosa laxa Retzius var. harputense T. Baytop (Kişmiri rose), is an exotic plant coming from Central Asia. Kişmiri rose has semi-double and miniature flowers and blooms for about five months in the ecological conditions of Van. It has not only highly decorative but also has a light, pleasant, and enthusiastic fragrance. As far as we know there is no previously published on the volatile profile of Rosa laxa Retz var. harputense (Kişmiri rose). For this purpose, in this study, "Headspace Solid Phase Micro Extraction Gas Chromatography-Mass Spectrometry" (HS/SPME/GC/MS) was applied for the detection of volatile compounds of Kişmiri rose flowers. A total of 31 compounds of Kişmiri rose were identified and quantified using Gas Chromatography-Mass Spectrometry (GC/MS). Among these identified compounds, phenyl ethyl alcohol (26.59%), cis-3-hexenyl acetate (18.573%) was detected as the major ones. According to the obtained results, it is concluded that our species has also a Chinese origin.
Marigold (Tagetes erecta L.) plants, also called Mexican or Aztec marigold, with symptoms of shoo... more Marigold (Tagetes erecta L.) plants, also called Mexican or Aztec marigold, with symptoms of shoot proliferation, dwarfing, and reddening were observed in ornamental gardens of Van Province (Turkey). Five plants, two of them showing reddening and three symptomless plants, were sampled at the end of September 2014. Genomic DNA isolated from symptomatic and nonsymptomatic plant leaves was used to amplify 16S rDNA fragments by nested polymerase chain reaction (PCR). Of the 5 marigold samples tested by PCR, only the two showing reddening symptoms yielded the expected 1.2-kb DNA fragments. Amplified PCR fragments were cloned into a plasmid vector and transformed into competent Escherichia coli strain JM 109. Recombinant plasmid DNA was isolated and sequenced bidirectionally. The provided sequences were 1244 bp and 1245 bp in length and were designated as isolate 1 and isolate 2, respectively. BLAST analysis of the 16S rDNA sequence and virtual restriction fragment length polymorphism (RFLP) analysis confirmed the presence of the phytoplasma "Candidatus Phytoplasma solani". The in silico virtual RFLP pattern of isolate 1, based on the 16S rDNA F2n/R2 fragment, was identical (similarity coefficient 1.00) to the reference pattern of 16Sr group XII, subgroup A (GenBank accession no.: AF248959). Isolate 1 was identified as a member of 16SrXII-A. Based on the same analyses, isolate 2 showed molecular characteristics different from reference patterns of all previously established 16Sr groups and subgroups. The most similar was the reference pattern of 16Sr group XII, subgroup A (GenBank accession no.: AF248959), with a similarity coefficient of 0.97. This is the first report of naturally occurring "Ca. P. solani" affecting T. erecta, which shows that this plant species is an alternate host of the agent.
Karotenoidler, bitkinin kuraklığın olumsuz etkisine karşı koyabilmesinde doğrudan, fotosentezde i... more Karotenoidler, bitkinin kuraklığın olumsuz etkisine karşı koyabilmesinde doğrudan, fotosentezde ise dolaylı rol almaktadır. Son yıllarda kuraklığa karşı dayanıklılığın belirlenmesinde erken seleksiyon kriteri olarak yapraklarda karotenoid miktarının belirlenmesine yönelik çalışmalar ön plana çıkmaktadır. Bu çalışmada, Van ekolojik koşullarında yetişen kuşburnu türlerinde (R.
International Journal of Agriculture Forestry and Life Sciences, Jun 30, 2021
Daffodil (Narcissus tazetta L.) is used for indoor and outdoor ornamental plants as well as a cut... more Daffodil (Narcissus tazetta L.) is used for indoor and outdoor ornamental plants as well as a cut flower. It is widely preferred in the perfume and cosmetic sector due to its aromatic characteristics. It is believed that Prophet Noah sowed Daffodil seeds in Şırnak/Cizre regions and it spread out to the entire world after Noah flood. It is asserted that the Daffodil grown-up Cizre region has a more severe smell than the others. In this study, Headspace solid-phase microextraction (HS-SPME) was used for the analysis of volatile compounds of flower samples. A total of 26 compounds of natural Daffodil growing up in Şırnak/Cizre region were identified followed by 21 compounds from Izmir and 16 compounds from Siirt locations. The main aroma compounds found to be β-ocimene and benzyl acetate with the rates next to each other.
Özet: Van Gölü ve çevresindeki bahçe kültürünün geçmişi Urartululara kadar dayanmaktadır. Bu bahç... more Özet: Van Gölü ve çevresindeki bahçe kültürünün geçmişi Urartululara kadar dayanmaktadır. Bu bahçelerde, kent dokusuna uyum sağlamış, çok sayıda yerli ve yabancı bitki türü yetişmektedir. Bu araştırmanın amacı, Van ve çevresindeki eski yerleşim birimlerinde bulunun şahıslara ait bahçelerde, kent halkı tarafından uzun yıllardan beri süs bitkisi olarak kullanılan bitkilerin tespit ve teşhis edilmesidir. Eski Van kent alanında bulunan özel bahçelerde yetişen bitkiler çeşitlilik göstermektedir. Araştırmanın sonucunda; mevsimlik olarak dört adet tür bulunurken, geofitlerden dokuz adet, çalılardan 13 adet tür, ağaçlardan 10 adet ve iki adedi de sarılıcıtırmanıcı tür olmak üzere toplam 38 adet bitki tespit edilmiştir. Van kenti eski yerleşim birimlerinde kullanılan bitki türlerinin geleceğe aktarılması yönünden önerilere yer verilmiştir. Bu türlerinin kullanımının devamı kentli ile süs bitkileri arasında var olan kullanımının devamı sağlanmış olacaktır.
The tradition of gardening and growing ornamental plants goes back till Urartians, who lived 3000... more The tradition of gardening and growing ornamental plants goes back till Urartians, who lived 3000 years ago, in the Van region. Therefore, one often comes across different ornamental plants in old and traditional gardens in Van. Some of these are old garden roses, which have different origins and about which there is only little information. In this study, some information will be given about the botanical features and growing environment of the recently identified taxon, Rosa laxa Retz var. harputense T. Baytop. It grows in the gardens of the region but has not sufficiently been introduced to the scientific world. When it was first encountered in 1995, the identification key, concerning the identification of roses in P.H. Davis' "Flora of Turkey" (Volume IV, 1972), which is the primary source to identify the roses grown in Anatolia, was not adequate. This rose was both first identified in 1999 and published by T. Baytop in his book called "Old Ottoman Garden Roses (2001)". It has been understood, with the later studies, that this rose is a new variety that has not been identified so far. This kind of rose, known publicly as "kişmirî rose," is one which has remontancy and pompon shaped, double flowers. Its flowers are fragrant, borne on stems in groups of 2-6 or singly, 2-2.5 cm in diameter, and petals that are white with lemon coloured bases. This rose, growing in the old gardens of Van and Elazığ and in the monasteries in the region, is a variety of Rosa laxa Retz, which naturally grows in East Asia, Northwest China and Siberia. Its origin is not exactly known or when and how this rose came to this region from such a long way.
VI International Symposium on Rose Research and Cultivation, 2015
According to some historians, the 18 th century was the beginning of a change in the established ... more According to some historians, the 18 th century was the beginning of a change in the established culture of the Ottoman community due to the proliferation of European culture. During this period, great changes were observed in the types of plants used for decorating outdoor spaces, and in daily culture. For example, the rose, which was grown for many years in the palace gardens of Istanbul, lost its value after the importation of European roses, causing Ottoman roses to lose their traditional admiration. However, those old original Ottoman roses were preserved in some Anatolian cities and remained unaffected by the European conversion. One of these such regions is the Lake Van region in East Anatolia. Six different types of original roses were found in gardens and old graveyards in this region. Investigatons show that these roses have a great influence on Van's traditional handicrafts and cuisine.
Hyacinth (Hyacinthus orientalis L.) is one of the most beloved ornamental plants with fragrant fl... more Hyacinth (Hyacinthus orientalis L.) is one of the most beloved ornamental plants with fragrant flowers. As one of the important bulbous plants, hyacinth is used as a cut flower, potted flower, and garden flower. Due to their unique aroma, hyacinth flowers are used in perfumery especially in France whose perfume industry is well-known in the world. In this study, Headspace Solid Phase Micro Extraction (HS-SPME) GC/MS (Gas Chromatography/Mass Spectrometry) technique was used for the analysis of volatile compounds of flower samples. A total of 28 volatile compounds were identified in the fresh flowers of hyacinths. Phenylethyl alcohol, benzyl acetate, a-pinene, and furfural were the major aromas accounting for hyacinth fragrance.
Yükselen yaşam standardı ve artan kentleşme tüm dünyada olduğu gibi ülkemizde de iç ve dış mekând... more Yükselen yaşam standardı ve artan kentleşme tüm dünyada olduğu gibi ülkemizde de iç ve dış mekânda yeni süs bitkilerine olan talebi artırmaktadır. Ancak, günümüzde kentsel ortamlar, mimari yapılar, kamu parkları ve açık yeşil alanlar ile bu alanlarda yetiştirtilen süs bitkileri homojenleşmiş ve küresel kültürün bir parçasına dönüşmüştür. Artan ve değişen pazar talebi süs bitkileri üretimini ve ıslahını yeniden gündeme getirmiştir. Anadolu’nun bitki zenginliği, çok sayıda araştırıcıyı pazar taleplerine uygun yeni tür ve çeşidi süs bitkileri piyasasına kazandırmak için doğal türlerden yararlanma ve ıslahına yöneltmektedir. Bir türün süs bitkisi olarak ele almasında tarihin ilk dönemlerinden beri "ilk bakışta aşk" benzetmesi gibi bitkinin; olağan dışı biçimi, çiçeğin özel boyutu veya rengi, kokusu ve kolay çoğaltılması, yetiştirilmesi ve üretilmesi gibi faktörler etkili olmuştur. Bitkinin yayılımı, büyüme fizyolojisi, hastalık ve zararlılara karşı toleransı, farklı koşullarda...
Uploads
Papers by Sevket Alp