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Download DIVeRSITy Of THe MARTAGON LILy (LILIUM MARtAgON L.) IN
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issn 1392-3714, e-issn 2345-0215 Diversity of the martagon lily (Lilium martagon L.) in Latvia Antra Balode Latvia University of Agriculture, Faculty of Agriculture, Institute of Agrobiotechnology, Liela 2, Jelgava, LV 3001, Latvia; e-mail: [email protected] Abstract The genus Lilium L. includes approximately 100 species distributed throughout the cold and temperate parts of the northern hemisphere. One of the best known of wild lilies is the martagon lily (L. martagon L.). Of all the lily species, it is distributed across the largest growing area – from western Portugal through Europe and Asia. To evaluate the natural habitat of the martagon lily, research was carried out in locations at Aizkraukle, Ventspils, Kuldiga and Tukums region in Latvia. Research results indicate that diversity in genotypes varies according to location and distribution. The individuals of each biotope were characterized by stable inherited traits: color, shape and flower diameter, stem length and bulb color. The color of flowers was basically consistent, but there were variations in intensity from pale to bright violet-pink. Spotting was also extremely variable, ranging from a few small spots in the centre to spotting that covered the entire flower to the tips of the tepals. Diameter of flower varied between of 3.5 to 6.0 cm. The height of these plants varied up to 114-130 cm. The flowering time was from mid June to the middle of July and seeds ripen in September. Wild martagon lilies found in these regions were growing in calcareous soils among shrubs in river valleys and semi-shaded deciduous forests. Bulbs were growing to about 10 to 20 cm under the ground. Key words: phenological observations, variability, wild species. Introduction It has been discovered that the first Lilium martagon L. of the north blossomed in Bergen, Norway, in 1597, and was introduced to Sweden in 1795 (Lundquist, 2005). Many of the Scandinavian populations are restricted in size and geographically isolated from one another. The 25 XVII ❧ Botanikos sodo raštai / Scripta Horti Botanici largest population in Sweden (at the estate of Ulfåsa) and perhaps in Scandinavia has, however, more than 25 thousand individuals (Persson, 2001). It is mentioned that L. martagon had probably been first brought to England as a garden plant in 1550-1565. It has been introduced to North Germany and to Britain simply as an ornamental plant: to Britain after 1548 but shortly before 1568 (Lundquist, 2005). L. martagon in Latvia was discovered in 1839 (Andrušaitis, 1985). The species of the genus Lilium is classified and the most authoritative is the classification of Harold F. Comber. In 1949, a revised subclassification of the genus Lilium was published. H. F. Comber considers physical features such as flowers, seeds, the type of germination, arrangement of the leaves and the form and growth habit of the bulb. He also gives importance to geographical distribution and to the evolutionary relationships of species and groups. This resulted in seven part categorization (Comber, 1949). The martagon section comprises such species: L. martagon L., L. distichum Nakai ex Kamib., L. hansonii Leichtlin ex D. D. T. Moore, L. medeoloides A. Gray and L. tsingtauense Gilg (Comber, 1949; McRae, 1998). Despite the great variation in form and disposition of the flower there can be no doubt that the species are very closely related. Whorled leaves and hypogeal seed germination indicate this relationship. In the wild, martagons have the ability to survive for years by being tucked under trees and using bulbs, rhizome, stolon or some other device to protect food reserves. It is a selfincompatible diploid, 2n=24, which propagates predominantly by seed-set and only very rarely by bulbils (Lundquist, 1991). It takes 7-8 years to flower from seed. L. martagon is cross-pollinated and, at the end of the summer, many light-weight seeds are produced and dispersed by wind. The flowers have an unpleasant sweetly fragrant odour – especially at night to attract the night-moth for pollination. The whorled leaves give the plant the ability to secure most of the available light most efficiently; therefore, this situation suits L. martagon admirably. The literature gives the following countries where L. martagon may be found: Portugal, Spain, France, Switzerland, Germany, Austria, Italy, Czech, Hungary, Albania, Greece, Poland, Romania, Bulgaria, Turkey, Britain, Belgium, Holland, Denmark, Norway, Sweden, 26 Antra Balode Finland, Russia – central, southwestern and southeastern regions, and the Baltics. It is mentioned that in the Baltic countries its most northerly site is in Latvia (Fox, 1987; Andrušaitis, 1985). There are conflicting views that the northern latitude is in Estonia (Lundquist, 2005). L. martagon is found in Lithuania near Vilnius and Trakai in the forest as well as the area of Kėdainiai, Ramygala. L. martagon is an endangered species in Poland (Lundquist, 2005). East of the Urals in Asia the lily stretches to 124°E on the Rivers Vilyui and Lena. Its most northerly station in Siberia is 68°40ʹN on the lower reaches of the River Yenisei. On the south, it is found in northern parts of Mongolia, in the Caucasus and the western area of northern Turkey in Asia (Fox, 1987). Over all this vast range it is never far from woodlands. M. V. Baranova says the martagon lily is thriving within forest glades, on the edge of the forest and among bushes on herb-covered meadows (Баранова, 1990). It is found that L. martagon is a more polymorphic plant in the wild comprised with other lily species (McRae, 1998). Over recent decades, under the impact of human activity the L. martagon has decreased (Kedra, Bach, 2005) – despite strict protection. Currently a certain role in the protection of endangered species has been providing by law in the Czech Republik (Štrůtka, 2009). It establishes certain ways of how to safeguard the future of endangered species. L. martagon has been included in the previous – but not the last issue of the Red Data Book of Latvia (Andrušaitis, 1985, 2003). Ranging over vast area, L. martagon includes several distinct forms which differ from the typical species. L. martagon var. albiflorum Vuk. grows in the wild in Yugoslavia and Germany, has white flowers spotted in carmine pink. L. martagon var. album Weston has pure white flowers. L. martagon var. cattaniae Vis. are more common in Balkans: Albania, Bulgaria, Greece, Rumania, Turkey, Serbia and Croatia (Fox, 2006). It is extraordinarily stately with deep wine-colored unspotted flowers in a large inflorescence. In 1934, L. martagon var. martagon has been described from Latvian botanist N. Malta, as to where it occurs on the dolomite hills near the mouth of the river Daugava. It is distinctive by its height – up to 180 cm and by short hair on the stem. The leaves are 5 cm wide and the 3 to 10 flowers have strongly reflexed tepals of pale purplered with dark spots and red hair on the tepals (Fox, 1987; McRae, 1998). 27 XVII ❧ Botanikos sodo raštai / Scripta Horti Botanici Methods During the growing seasons of different years (1994, 2001, 2003 and 2006), in locations of natural habitat the following phenological observations were made: flowering time (days from the beginning of vegetation till first flower open), plant height (cm), number of flowers per stem (count), diameter (cm) and form and coloring of the flowers. From the Institute of Biology of the Latvia University, the initial dates of natural habitats were obtained (Fig. 1). Kuksas Padure Rīva Plani Klintaine Staburags Vīgante Fig. 1. Natural habitats of L. martagon in Latvia Plants were estimated individually by the following traits: plant height (cm), number of flowers per stem (count) and diameter of a flower (cm). The flowering time was when first flower opens. Results and Discussion Lily breeders are very interested to find bulbs in the wild, collect them and use them in breeding. The goal of this research was to estimate L. martagon distribution in the locations of west of Latvia − in the regions of Ventspils, Kuldiga and Tukums and in the east – in Aizkraukle. 28 Antra Balode Significant differences were observed between the L. martagon found at different habitats – such as variability in some morphological traits (start of growth, plant height, flower diameter and color, flowering time and number of flowers per stem) (Table 1). The environment of the habitat differs regionally. Taking into account the morphological traits, these martagon lilies were classified into groups. The wild martagon lilies found on the left bank of the River Daugava near Vigante Park and Staburags (areas which belong to the region of Aizkraukle) are considered as one group. Significantly different are the martagon lilies in Aizkraukle region from those found on other sites. Their flowers are pale grayish pink with small dots and their start of growth is late April to early May – with flowering late in June (57 days from the beginning of vegetation till first flower open) (Table 2). The height of the plant is up to 105-110 cm. Variability in some morphological traits could be explained by the impact of genotype and the environment. 66 64 62 Days 60 58 56 54 52 50 48 Vīgante Staburags Klintaine Riva Padure Plani Kuksas Habitats of L.martagon Fig. 2. The flowering time of different species and cultivars of lilies on average, in years 2008 and 2009 (in days) Wild martagon lilies found in the regions of Ventspils, Kuldiga and Tukums are similar by phenotypes and are characterized by bright violet-pink flowers. The height of the plants is up to 114-130 cm. The 29 XVII ❧ Botanikos sodo raštai / Scripta Horti Botanici beginning of their season’s growth is late April and the time of flowering is late June (54 days) (Fig. 2). If a population is confined to the vicinity of some old or abandoned site, its habitat is questionable. It may have originated from domesticated species. The habitats in Padure (in the region of Kuldiga), Plani and Kuksas (in the region of Tukums) would probably be situated in areas of old parks. Their soils are generally clayey. The martagon lilies grows on grasslands and among shrubs, but cannot be found in deep forests, because sunlight is necessary for its growth. The environment of the habitat differs regionally. In Kuksas (in the region of Tukums) L. martagon habitat is found in grassland in the vicinity of a old manor house. The habitat is abundant with weeds, ferns and climbing weeds (Aegopodium podagraria L., Dactylis glomerata L., Vicia sepium L.) and surrounded by shrubs and trees: maple – Acer platanoides L., oak – Quercus robur L., linden – Tilia cordata Mill., hazelnut – Corylus avellana L., alder – Alnus glutinosa (L.) Gaertn.). It is all a surrounded area – a private park. In Kuksas there were found variable plants – most heavily spotted clone; some with a few spots. The habitat in Padure (Kuldiga) is situated in an area of an old palace and a park. Significant differences between L. martagon in Padure habitat and other sites (Kuksas, Plani and Riva) were also observed. The inflorescence form of L. martagon is typical in the raceme. Flowering stems range in height from 114 to 130 cm. This factor seems to depend upon the habitat. In an open, sunny location, the stems are fairly consistent 110-120 cm in height. The extremes in height seem to appear in more protected and somewhat shaded locations or where they must compete with vigorous vegetation. In Padure habitat, L. martagon varies significantly in flower diameter and color, and also in plant height. In Padure location, generally the color of the flowers is more intensely pink and with stronger spotting than at any other site in Latvia. The valley of the small River Riva form the Riva L. martagon habitat of shrubs and deciduous forest (Ulmus laevis Pall. and Aegopodium podagraria L., Gagea lutea L., Dryopteris filix-mas (L.) Schott, Pteridium aquilinum (L.) Kuhn., Urtica dioica L.). The leaves of this martagon lily are formed in whorls ranging from 3 to 4 in each whorl of 5 to 30 Antra Balode 14 leaves. The width of the individual leaf varies from 2.5 to 4 cm. In the habitat of Riva, martagon lilies were found with wider leaves than elsewhere. Wild martagon lilies in the region of Aizkraukle on the right bank of the River Daugava, near Klintaine, are having distinct characteristics when compared with other L. martagon specimens – distinct parameters; lighter violet-pink flowers with exceedingly fine and scattered dots; up to 90 cm stems and blossoms of greater size. They also are late starters – with growth period from early May and blossoming through early July (63 days from the beginning of vegetation till first flower open). It has been found that martagon lilies grow mostly in semi-shade (light woodland) and in calcareous soils – preferably with roots in the shade. Generally flowering spans from mid June to the middle of July and seeds ripen throughout September. Table 1 shows the comparison of characteristics of L. martagon from different habitats. The results concur with findings in the literature that L. martagon can be very variable in morphological characters like color of flowers, the number of flowers per stem, the intensity of spotting on the tepals and the pubescence of flower buds, also within a single population (Feldmaier, McRae, 1982). Conclusions 1. It has been found that in Latvia L. martagon varies by genotype in diverse natural habitats. If a population is confined to the vicinity of a village, the habitat is questionable. It may have originated from some cultivated species. 2. The individuals of each biotope were characterized by stable inherited traits: color, shape and flower diameter, stem length and bulb color. The color of flowers is basically consistent, but there are variations as well as intensity in color. Spotting is also extremely variable, ranging from a few small spots in the centre to spotting that covers the entire flower to the tips of the tepals. 3. In the natural growing area the flowering started in 54 to 63 days from the beginning of vegetation. 31 32 Shape Stem: Shade Color Bulb: Whole shape Shape of scale oblong-ovate light green Direction Leaves: Color fragrant turk-capshaped pendulous dark green fragrant turk-capshaped pendulous dark green Klintaine light violet-pink fragrant turk-capshaped pendulous medium green elliptic light green Region Ventspils Riva bright violet-pink narrowlanceolate yellow lanceolateovate yellow lanceolateovate yellow narrowlanceolate yellow oblon-ovate ovate purplish light brown brown elongate-ovate elongate-ovate elongate-ovate globose fragrant turk-capshaped pendulous dark green Scent Shape Pollen Spotting Aizkraukle Staburags pale greyish pink strong violet-red orange small reddish-brown bright orangebrown fragrant turk-capshaped pendulous light green Tukums Plani Kuksas bright medium violet-pink violet-pink elongateovate lanceolate-ovate lanceolateovate yellow yellow elongate-ovate narrowlanceolate yellow elongate-ovate fragrant turk-capshaped pendulous medium green oblong-ovate elliptic-ovate lanceolate purplish brown light brown light green fragrant turk-capshaped sub-pendulous dark green Kuldiga Padure vary from brighter to paler violet-pink small strong small strong strong reddishreddish-brown reddish-brown reddish-brown violet-red brown yellow bright orange bright orange orange-brown light-orange Vīgante Flowers: Color pale greyish pink Habitats Characteristics Table 1. Results of qualitative parametres of L. martagon in different habitats XVII ❧ Botanikos sodo raštai / Scripta Horti Botanici 7.0 4.0±0.3 3.5±0.2 6.0±0.6 L. martagon (Padure) L. martagon (Plani) L. martagon (Kuksas) 21.1 7.0 9.3 9.3 3.5±0.2 L. martagon (Riva) 9.3 L. martagon (Klintaine) 4.0±0.3 7.0 V% 3.5±0.2 Mean ±Sx, cm Diameter of flower L. martagon (Staburags) 4.0±0.3 L. martagon (Vīgante ) Habitats 10.0 13.0 7.5 V% 115.0±7.5 114.0±6.9 8.5 14.0 130.0±10.2 20.4 130.0±10.2 20.4 90.0±4.8 110.0±7.8 105.0±5.5 Mean ±Sx, cm Plant height 16.0±1.5 15.0±1.3 23.0±3.7 10.0±1.7 5.0±1.6 10.0±1.7 5.0±1.6 Mean ±Sx, number 30.2 38.3 61.5 20.2 58.5 20.2 58.5 V% Number of flowers Mean ±Sx, cm 10.0±0.4 15.0±0.4 15.0±0.4 18.0±0.3 10.5±0.4 12.0±1.7 17.0 28.4 28.4 36.9 19.0 16.0 16.0 V% Leaves length, cm 12.0±1.7 Table 2. Results of quantitative parametres cross of Lilium martagon in different habitats 2..5±0.6 3.5±0.4 3.5±0.4 4.0±0.3 2.0±0.3 3.0±0.2 3.5±0.4 Mean ±Sx, cm 18.0 14.0 14.0 21.9 17.0 24.6 14.0 V% Leaves width, cm Antra Balode 33 XVII ❧ Botanikos sodo raštai / Scripta Horti Botanici References Andrušaitis, G. 1985. Sarkanā grāmata. Retās un iznīkstošās dzīvnieku un augu sugas. Zinātne, Rīga, 525 p. Andrušaitis, G. 2003. Latvijas Sarkanā grāmata. 3. daļa. Vaskulārie augi. Zinātne, Rīga, 691 p. Comber, H. F. 1949. A New Classification of the Genus Lilium. In: The Lily Yearbook of the North American Lily Society, Vol. 13, p. 86–105. Feldmaier, C.; McRae, J. 1982. Lilies. Eugen Ulmer, Stuttgart, 246 p. Fox, D. 1987. Growing Lilies. London: Christopher Helm Publishers Ltd. 264 p. Fox, E. E. 2006. Martagon Lilies: Old World, Whorled-Leaf Lilies. Millet, Alberta, Canada, 174 p. Lundquist, K. 1991. Four-Locus S-gene Control of Self-Incompatibility Made Probable in Lilium Martagon (Liliaceae). Hereditas, Vol. 114, p. 57−63. Lundquist, K. 2005. Lilium martagon L. Doctoral dissertation, Swedish University of Agricultural Sciences, Alnarp. Acta Universitatis Agriculturae Sueciae, Vol. 19, p. 292−294. Kedra, M.; Bach, A. 2005. Morphogenesis of Lilium martagon L. Explants in Callus Culture. Acta Biologica Cracoviensia. Series Botanica, Vol. 47/1, p. 65−73. McRae, E. A. 1998. Lilies. Portland, Oregon: Timber Press, 391 p. Persson, H. 2001. Estimating Genetic Variability in Horticultural Crop Species at Different Stages of Domestication. Doctoral thesis. Swedish University of Agricultural Sciences, Alnarp, 290 p. Štrůtka, P. 2009. News from the Old Martagon Country. In: Mitchell, A. (ed.). Lilies and Related Plants 2009-2010. The Royal Horticultural Society Lily Group. London, p. 54−59. Баранова, М. В. 1990. Лилии. Ленинград: Агропромиздат, 383 с. Miškinės lelijos (Lilium martagon L.) įvairovė latvijoje Santrauka Lilium L. genties augalai, kurių yra apie 100 rūšių, yra paplitę šiaurinio pusrutulio šaltojo ir vidutinio klimato zonose. Viena žinomiausių laukinių lelijų yra miškinė lelija (Lilium martagon L.). Jos arealas didžiausias iš visų lelijų rūšių – nuo vakarų Portugalijos per visą Europą ir Aziją. Miškinės lelijos natūralioms augavietėms įvertinti buvo atlikti tyrimai šiuose Latvijos regionuose: Aizkrauklėje, 34 Antra Balode Ventspilyje, Kuldygoje ir Tukume. Tyrimo rezultatai parodė, kad genotipo įvairovė priklauso nuo augimo vietos. Kiekvieno biotopo augalai pasižymi šiomis paveldimomis savybėmis: žiedo spalva, forma ir dydis; stiebo aukštis ir svogūno spalva. Žiedų spalva buvo gana pastovi, bet skyrėsi jos intensyvumas – nuo šviesios iki ryškios violetiškai rožinės. Žiedo taškuotumas taip pat varijavo – nuo kelių mažų dėmelių centre iki daugybės dėmių ant viso žiedo. Žiedo skersmuo – nuo 3,5 iki 6,0 cm. Šie augalai gali būti 114–130 cm aukščio. Žydėjimo trukmė – nuo birželio vidurio iki liepos vidurio; sėklos sunoksta spalį. Miškinė lelija auga kalkingoje dirvoje, tarp krūmų, upių slėniuose, lapuočių miškuose pusiau pavėsyje. Jos svogūnai auga 10–20 cm gylyje. Reikšminiai žodžiai: fenologiniai stebėjimai, įvairovė, laukinės rūšys. 35