Age-determination of Dicotyledonous Herbaceous Perennials by Means of Annual Rings: Exception or Rule?

Dietz, Hansjörg; Ullmann, I.

doi:10.1006/anbo.1997.0423

Cited by 63 publications

(70 citation statements)

References 6 publications

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“…The phenological observations and comparative experimental studies have verified that the growth rings of the forb species are formed annually, and represented true annual growth increments (Dietz and Ullmann, 1997;Dietz and Fattorini, 2002). The patterns of growth rings in forbs may vary in different environmental conditions, and growth rings may be missing or false under the extremely adverse growth conditions (Dietz and Ullmann, 1998;Dietz and Fattorini, 2002;Moloney et al, 2009).…”

Section: Introductionmentioning

confidence: 79%

“…Previous studies have demonstrated that annual growth rings in the secondary xylem of permanent primary roots are widespread among many dicotyledonous perennial forbs of the temperate seasonal zones in the Northern Hemisphere (Dietz and Ullmann, 1997;Dietz and Schweingruber, 2002;Liu and Zhang, 2007). The phenological observations and comparative experimental studies have verified that the growth rings of the forb species are formed annually, and represented true annual growth increments (Dietz and Ullmann, 1997;Dietz and Fattorini, 2002).…”

Section: Introductionmentioning

confidence: 91%

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Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

Shi

Wang

et al. 2016

Dendrochronologia

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a b s t r a c tAlthough recent studies have demonstrated that annual growth rings are present among perennial forbs species at high northern latitudes, little is known about whether there are demarcated growth rings of perennial forbs in the Loess Plateau of China where plant growth is strongly limited by dry climate conditions and severe soil erosion. In this study, we collected the main roots of 11 perennial forbs species along the precipitation gradient in the Loess Plateau, and analyzed the growth rings in the secondary root xylem. We found that ten species showed distinct annual growth rings, and the anatomical patterns, including vessel size and density, varied considerably among different families. Our results suggest, for forbs species in the Loess Plateau, that vessel diameter in the root xylem was strongly correlated with growth rate of the forb's roots. Ring widths of the forbs showed a significant declining trend, reflecting the deteriorating signal of growth condition with age. In comparison to other families, forb species of Fabaceae usually have the evidently larger vessels that link directly to higher hydraulic capacity and growth rate. In terms of annual ring width patterns, this study provides an applicable approach to detecting effects of limited climatic conditions and life history strategies on herbaceous vegetation in the Loess Plateau.

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Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 91%

Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

Shi

Wang

et al. 2016

Dendrochronologia

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“…Time of fl owering and subsequent dying of the plant occurs in plants older than 4 years. The distribution of vascular elements within H. pastinacifolia roots shows the annual formation of distinct growth rings, which could be used for the method described by DIETZ and ULLMANN (1997) to estimate a specimen's age. However, because root chronology is an invasive method and because in general, demographic characteristics like growth, probability of survival and fl owering, as well as reproductive output of perennial plants are strongly size-dependent (WERNER 1975, METCALF et al 2003, for the crude estimation of age the diameter of the root, measured with calipers, could be used in the fi eld.…”

Section: Discussionmentioning

confidence: 99%

New Insights into the Anatomy of an Endemic Hladnikia Pastinacifolia Rchb.

Šajna¹,

Šuštar-Vozlič²,

Kaligarič³

2014

Acta Botanica Croatica

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-We studied the anatomy of a rare narrow endemic species belonging to the Slovenian fl ora -Hladnikia pastinacifolia Rchb. Hladnikia is a monotypic genus with distinct taxonomic position within the Apiaceae family. The anatomical characteristics revealed by light and fl uorescence microscopy provided new insights regarding the pollen, leaf and root characteristics of H. pastinacifolia, improving the understanding of its biology and ecology. Pollination, drought tolerance, life cycle and unattractiveness to herbivores explain the species' persistence in time. Autofl uorescence localized bioactive substances within secretory ducts and oil ducts.

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“…longaeva в штате Невада, США [10]; 3200 лет для Sequoiadendron giganteum в Калифорнии, США [11]. Этот метод может быть применим и к травянистым видам [12,13], например, по данным B. Erschbamer и V. Retter [14] в условиях австрийских Альп Helianthemum grandiflorum может достигать возраста 32 лет, Artemisia mutellina -18 лет, Trifolium pratense ssp.…”

Section: Introductionunclassified

Demography of Alpine Short-Lived Plants, Longevity and Ontogeny Stage Durations

Elena¹,

Владимир²,

Владимир³

2016

Ûg Ross.: èkol. razvit.

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Резюме. Цель. Изучить популяционную динамику и определить продолжительность жизни и стадий онтоге-неза альпийских малолетних растений. Методы. Для расчетов мы использовали предложенный ранее нами метод, основанный на дискретном описании онтогенеза и теории вероятностей и случайных процессов. Ре-зультаты. В результате шестилетнего мониторинга за маркированными особями было установлено, что полный цикл Anthyllis vulneraria составляет 2.6±0.3 года (среднее значение и ошибка среднего), Draba hispida -4.5±0.3, Murbeckiella huetii -4.6±1.1, Carum meifolium -7.8±1.4, Eritrichium caucasicum -9.1±1.4, Trifolium badium -10.3±2.6, Sedum tenellum -11±2.05, Androsace albana -12.1±2.5, Minuartia recurva -22.9±4.5. Также для изучаемых видов растений были построены суммарные матрицы переходов, которые показывают веро-ятности перехода особей в популяции из одного возрастного состояния в другое за определенный промежу-ток времени, в нашем эксперименте -1 год. Заключение. Смертность проростков и ювенильных растений изученных альпийских видов, за исключением Murbeckiella huetii, высока и составляет около 50 и более про-центов. Минимальный период времени, необходимый для прохождения полного жизненного цикла для мало-летников в условиях высокогорий Северо-Западного Кавказа, составляет 2 года, как это было показано для Anthyllis vulneraria, Murbeckiella huetii и Trifolium badium. Для других изученных малолетников, этот период был более продолжителен -3-12 лет. Поддержание популяций Eritrichium caucasicum и Androsace albana происходит за счет устойчивости виргинильных растений. Ключевые слова: матрицы переходов, длительность, средняя продолжительность жизни, альпийские рас-тения, малолетние виды. Abstract. The aim -to evaluate lifespan (full cycle) and ontogeny stage durations of nine alpine short-lived NorthWest Caucasus plants. Methods. For calculation we used a new method which was developed and suggested earlier by us. This method is based on a discrete ontogeny description and on the probability theory and random pro- DEMOGRAPHY OF ALPINE SHORT-LIVED PLANTS, LONGEVITY AND ONTOGENY STAGE DURATIONS

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Age-determination of Dicotyledonous Herbaceous Perennials by Means of Annual Rings: Exception or Rule?

Cited by 63 publications

References 6 publications

Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

Comparative analysis of annual rings of perennial forbs in the Loess Plateau, China

New Insights into the Anatomy of an Endemic Hladnikia Pastinacifolia Rchb.

Demography of Alpine Short-Lived Plants, Longevity and Ontogeny Stage Durations

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