Age stages in the ontogeny of cultivated Panax ginseng C.A. Mey

Khrolenko, Yu. A.; Burundukova, O. L.; Безделева, Т. А.; Музарок, Т. И.; Zhuravlev, Yu. N.

doi:10.1134/s1062359007020033

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…Similar observations have occured in P. wangianus (Table 1). The maximum age of P. quinquefolium estimated by Anderson et al (1993) was 25-30 years, and in P. ginseng it was 140-150 years (Grushvitskii 1961;Khrolenko et al 2007). In P. wangianus it was above 50 years.…”

Section: Discussionmentioning

confidence: 99%

Relationship between age, size, fecundity and climatic factors in Panax wangianus an endangered medicinal plant in the sacred grove forest of North-East India

Venugopal

Ahuja

2011

Journal of Forestry Research

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Panax wangianus (Syn. Panax pseudoginseng) S. C. Sun (Araliaceae) is a critically endangered, medicinal plant of North-East India. The objective of this study was to determine how plant size affects flowering phenology and to evaluate the effect of climatic factors on flowering, fruiting and seed production. Data on vegetative and reproductive characters were monitored from 2016 individuals of Panax wangianus population in Law Lyngdoh, Smit sacred grove in Nongkrem, Shillong, India. Leaflet area was measured by a planimeter. Size variables of both vegetative and reproductive traits in different age classes were measured. Climatic factors were recorded from 2007 to 2009. Age was recorded by counting the number of bud scale scars on the rhizome. Light intensity and relative humidity were measured using a photometer, LiCor Model LI-189 and thermohygrometer respectively. Different climatic variables are correlated with vegetative and reproductive phenological events. Statistical analysis revealed that a strong positive correlation was observed between the age versus vegetative and reproductive characters, except 1%-2% plants showed neoteny. Morphological variations were observed in natural conditions on the basis of the number of prong and carpellate conditions. Phenological status revealed that most of the individuals of the age class 35-50 years and above 50 years contributed the most to flowering, fruiting and seed production. Age class was significant to predict the size of the plant and its reproductive capacity. Climatic factors such as temperature, precipitation and relative humidity show synergistic effect on both the vegetative and reproductive phases in Panax wangianus in the undisturbed Nongkrem sacred grove. The color of flowers of P. wangianus also varied depending upon the sunlight intensity. Therefore, in the view of conservation The online version is available at

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Section: Discussionmentioning

confidence: 99%

Relationship between age, size, fecundity and climatic factors in Panax wangianus an endangered medicinal plant in the sacred grove forest of North-East India

Venugopal

Ahuja

2011

Journal of Forestry Research

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“…Therefore, a large number of studies is focused on ontogenesis of Lobelia dortmanna L., a rare, slowly growing relic aquatic plant (Szmeja, 1987a(Szmeja, , 1987b(Szmeja, , 1994Lapirov et al, 2018). Recently, ontogenesis has also been studied for other tree and herbaceous plants (Khrolenko et al, 2007;Teteryuk et al, 2013;Silayeva, 2014;Lapirov, 2014Lapirov, , 2015Akhmedov et al, 2016;Evstigneev & Korotkov, 2016;Kubentaev & Danilova, 2016;Kirichok, 2016;Martínková & Klimešová, 2017;Talovskaya, 2017;Borovik & Revushkin, 2018;Sakhonenko & Matyukhin, 2018;.…”

Section: Introductionmentioning

confidence: 99%

Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Belyakov

Lapirov

2019

Regul. Mech. Biosyst.

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Representatives of the Sparganium L. genus belong to an ecological group of short grass helophytes which live in the shoreline area of different water bodies. Despite the fact that most representatives of the genus exhibit notable polymorphism (depending on the level regime of a water body, they can form various ecological forms), characteristic of all of them is presence of only one living form – vegetative mobile clear polycentric long-rhizomatous pseudoannual polycarpic plant with racemose root system. The objective of the article was to study the ontogenesis of genets and ramets on the example of representatives of the Xanthosparganium subgenus (S. emersum Rehm., S. glomeratum (Laest. ex Beurl.) Neum., S. gramineum Georgi and S. natans L.). The research was conducted using the ontogenetic approach. In the study, we analyzed ontogenesis of genet (from generative diaspore) and ontogenesis of ramets (from vegetative diaspores – tuber-like structures and axillary buds of vegetative-generative monocarpic and vegetative rosette shoots). We demonstrated that ontogenesis of genets and ramets (on the basis of tuber-like structures) in laboratory conditions is abrupt. It was found that the model species of Sparganium are characteristic in combining of incomplete and special ontogenesis, which is related to the omission of phases of the post-generative period. Such peculiarity is conditioned by increase in tempi of ontogenetic development. On the basis of specific ontogenesis, a variant of shortened ontogenesis is possible, during which the virginile ontogenetic condition is omitted. This feature could be characterized as dynamic polyvariance of ontogenesis, whereas bud initiation and development of shoots throughout the vegetative season, characterized as heterochrony, has been formed over the process of natural selection. Heterochrony (on the basis of iterative branching without periods of rest) includes a property of formation of vegetative-generative shoots which develop on the basis of sylleptic shoots of subsequent orders of branching. The main course of ontogenesis in natural conditions corresponds to D-type which occurs in order of generations of individuals of vegetative origin.

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“…(Sudakov, 2004), in accord with the temperature regime of its natural habitat. Ginseng shoots start growing later than shoots of many other plants (mid to late May), when frosts have ended (Khrolenko et al, 2007). Spring frosts end earlier in middle montane belts than in lower belts, a phenomenon connected with the temperature inversions characteristic of the southern Far East (Grushwitsky, 1940).…”

Section: Growth Conditions Of Wild P Ginsengmentioning

confidence: 99%

“…Panax ginseng is a perennial polycarpic herb with a taproot system and whorl shoots during early ontogeny, and an elongated monocyclic monocarpic herb with sympodially replaced shoots in the adult period (Khrolenko et al, 2007). The generative whorl includes 3-4 palmately compound leaves, mostly pentamerous and less commonly tetramerous.…”

Section: Mesostructure Analysismentioning

confidence: 99%

Mesophyll Structure and Chloroplast Density in Panax Ginseng Leaves from the Sikhote-Alin Mts Yuliya Khrolenko*, Olga Burundukova, Elena Burkovskaya, and Yuri Zhuravlev

Khrolenko¹,

Burundukova²,

Burkovskaya³

et al. 2012

Acta Biologica Cracoviensia Series Botanica

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Age stages in the ontogeny of cultivated Panax ginseng C.A. Mey

Cited by 7 publications

References 2 publications

Relationship between age, size, fecundity and climatic factors in Panax wangianus an endangered medicinal plant in the sacred grove forest of North-East India

Relationship between age, size, fecundity and climatic factors in Panax wangianus an endangered medicinal plant in the sacred grove forest of North-East India

Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Mesophyll Structure and Chloroplast Density in Panax Ginseng Leaves from the Sikhote-Alin Mts Yuliya Khrolenko*, Olga Burundukova, Elena Burkovskaya, and Yuri Zhuravlev

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