Diversity in germination of seeds inCalotropis procera R.Br. population

Sen, D. N.; Chawan, D. D.; Chatterji, Urmi

doi:10.1007/bf01373524

Cited by 6 publications

(5 citation statements)

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“…Initial germination experiment. According to the high germination percentage obtained in the first experiment, fifteen days after collection, seeds of C. procera showed no primary dormancy, which is in accordance with research from species in other countries where it is either a native or an exotic species (Sen et al 1968, Leal et al 2013, Bebawi et al 2015, Taghvaei et al 2015, probably meaning that the different environmental conditions experienced by the seeds during their development have not affected their dormancy behavior. Calotropis procera seeds are nondormant in agreement with other exotic species (Gioria et al 2018, Xu et al 2019 like Asphodelus fistulosus L. (Guerrero-Eloísa 2017) but differs from others that have shown dormancy (El-Keblawy & Al-Rawai 2006, Wijayabandara et al 2013, Ozaslan et al 2017.…”

Section: Discussionsupporting

confidence: 85%

“…Seed viability. Our findings are in accordance with those obtained by Sen et al (1968), who also found that germination did not change for two-years old seeds kept under laboratory conditions. However, in Australia, Bebawi et al (2015) mention that C. procera seeds buried on two kinds of soil lost their viability completely in two years.…”

Section: O N L I N E F I R S Tsupporting

confidence: 94%

“…Photoblastic response. A neutral photoblastic response under the temperature regime was obtained in accordance with results obtained by other authors (Sen et al 1968, Amritphale et al 1984, Oliveira-Bento et al 2013, Taghvaei et al 2015. Moreover, Leal et al (2013) Here, for C. procera, we report that germination percentage for seeds incubated under complete darkness was higher at temperatures below 30 °C, though with no significant differences compared with seeds incubated under a 12-h photoperiod.…”

Section: O N L I N E F I R S Tsupporting

confidence: 92%

“…Some germination studies done with C. procera in other countries have shown that seeds exhibit no dormancy (Sen et al 1968), that are neutrally photoblastic (Sen et al1968, Oliveira-Bento et al 2013, that their optimum temperatures for germination are 30 and 25/35 °C (Oliveira-Bento et al 2013), 30 °C (Taghvaei et al 2015, Menge et al 2016, and 20, 25 and 30 °C (Sen et al 1968). Some seed traits such as number of seeds per fruit and morphometric data have been documented for C. procera seeds from other countries (Heneidak & Hassan 2005, Oliveira-Bento et al 2013, Gabr 2014) and more recently from seeds harvested in Mexico (Navarrete-Sauza et al pers.…”

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confidence: 99%

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Germination of the exotic Calotropis procera (Aiton) W.T. (Apocynaceae) in Mexico

Navarrete-Sauza

Rojas-Aréchiga

2023

Bot. Sci.

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Background: Seed germination strategies are important for exotic species to identify the factors that control seed germination and establishment. Questions and /or Hypotheses: Temperature and light germination requirements for seeds of Calotropis procera do not change neither in its native regions nor in lands where it is exotic. Calotropis procera show germination traits that may increase their probability of colonization. Studied species: Calotropis procera is a perennial plant native to some desertic areas in Asia and Africa and now naturalized in America. Study site and dates: Mature fruits were collected in Oaxaca in September 2019 to test germination parameters. The last experiment was conducted in September 2021. Methods: We determined the effect of different temperatures, photoblastic response, and loss of viability of seeds kept at laboratory conditions for two years. We performed several sowings under controlled conditions and achieved germinability, t50 and the time to germinate. Results: Seeds were non-dormant, neutral photoblastic and did not lose viability after two years of dry storage. Temperature affected germinability and t50. Optimum germination temperature was 30 °C with no germination above 40 °C. Conclusions: Germination requirements of seeds of Calotropis procera studied were similar to those reported worldwide. Though seed germination was affected by maximum mean temperatures, seeds germinated fast and at high percentages under a wide range of temperatures, which together with other attributes, may confer C. procera great chances for successful colonization.

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Section: Discussionsupporting

confidence: 85%

Section: O N L I N E F I R S Tsupporting

confidence: 94%

Section: O N L I N E F I R S Tsupporting

confidence: 92%

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confidence: 99%

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Germination of the exotic Calotropis procera (Aiton) W.T. (Apocynaceae) in Mexico

Navarrete-Sauza

Rojas-Aréchiga

2023

Bot. Sci.

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“…Another factor that can greatly affect plant diversity is the herbivore grazing (Wei et al, 2009). Few studies were carried out on the seed germination of C. procera (Sen et al, 1968;Sharma and Amritphale, 2008). Some studies were conducted under controlled (Boutraa, 2010) or field conditions from ecological and ecophysiological perspectives (Khan et al, 2007;Oliveira et al, 2009;Tezara et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature, salinity, light and time of dehiscence on seed germination and seedling morphology of Calotropis procera from urban habitats

Galal¹,

Farahat²,

El-Midany³

et al. 2015

Afr. J. Biotechnol.

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Calotropis procera (giant milkweed) is a hardy xerophytic plant, which is distributed globally in many countries and has important economic and ecological functions. The present study aimed at estimating the effect of temperature, salinity and time of fruit dehiscence on the seed germination and seedling morphology of giant milkweed in urban habitats. Seeds were collected early (in June) and late (in December) from pre-dehiscent (EPRD, LPRD) and post-dehiscent (EPOD, LPOD) fruits. Mature seeds were 100% viable, while premature seeds did not germinate. The highest germination and mean time to germination was attained in full dark followed by dark/light, while no germination occurred at complete light. A significant difference between seeds from pre-and post-dehiscent fruits was assessed, while no significant difference between early and late seeds. Maximum germination was at 25 and 30°C, while germination was inhibited at 35°C, which demonstrates that temperature is one of the critical factors for giant milkweed seed germination. Moreover, salinity more than 2000 mg l-1 NaCl inhibited seed germination. It is likely that high temperature, direct light conditions and high salinity are the limiting factors for the establishment of giant milkweed seeds. The germination of C. procera seeds was significantly affected when germinated with Trigonella foenum-vulgare with the reduction of germination from 100 to 34%, while the later plant was not affected. C. procera is considered as an important medicinal plant; therefore, our results provide useful information for its management under different environmental conditions.

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Systematik und Evolution der Samenpflanzen

Ehrendorfer

1969

Progress in Botany

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Diversity in germination of seeds inCalotropis procera R.Br. population

Cited by 6 publications

References 5 publications

Germination of the exotic Calotropis procera (Aiton) W.T. (Apocynaceae) in Mexico

Germination of the exotic Calotropis procera (Aiton) W.T. (Apocynaceae) in Mexico

Effect of temperature, salinity, light and time of dehiscence on seed germination and seedling morphology of Calotropis procera from urban habitats

Systematik und Evolution der Samenpflanzen

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