Seed dormancy and germination characteristics of <i>Acer cinnamomifolium</i>, a plant species endemic to China

Cui-fang, Tang; Zhao, Yuchen; Ou, Lin-Feng; Zhong, Cai-Hong; Song, Song-Quan

doi:10.15258/sst.2021.49.3.01

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…mairei seeds requires warm temperatures. Our results are consistent with those of previous studies, which indicate that the embryos of many seeds with MPD need to grow at warm temperatures, followed by cold stratification conditions (Baskin and Baskin, 2004;Tang, 2014b;Li et al, 2017). For example, the embryo development of Paris polyphylla var.…”

Section: Discussionsupporting

confidence: 92%

Effects of seasonal temperature regimes on embryo growth and endogenous hormones of Taxus chinensis var. mairei seeds

Zhou

Wang

et al. 2023

Front. Plant Sci.

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Seed dormancy is a mechanism that prevents seeds from germinating at times of the year when conditions are unfavorable, that is, when the chance of seed survival is low. Determining the seasonal dynamics of seed dormancy is important for exploring how plant regeneration is adapted to the environment. We studied the seed dormancy status of Taxus chinensis var. mairei, an endangered species in China, under simulated seasonal temperature regimes. The embryo length, embryo-to-seed (E : S) ratio, and percentage of seeds with a split seed coat increased when seeds were stratified at spring and autumn temperature regimes. The abscisic acid (ABA) content decreased during stratification at simulated seasonal temperatures, but no obvious pattern in the content of gibberellic acid (GA) and indole acetic acid (IAA) was observed. The GA–ABA and IAA–ABA ratios increased during stratification. These results suggest that T. chinensis var. mairei seeds have morphophysiological dormancy, and that the seasonal dynamics of seed dormancy break are controlled by endogenous hormones and their balances, which was confirmed by the results of a field experiment. Our study provides useful information for understanding the natural population regeneration and propagation of this threatened species.

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Section: Discussionsupporting

confidence: 92%

Effects of seasonal temperature regimes on embryo growth and endogenous hormones of Taxus chinensis var. mairei seeds

Zhou

Wang

et al. 2023

Front. Plant Sci.

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“…They require a period of cold stratification to acquire germination capacity. For temperate species, cold stratification is a standard procedure for breaking dormancy (Yao and Shen 2018;Tang et al 2021;Chen et al 2022). Based on the laboratory data, germination of Korean pine seeds at the four germination temperatures gradually increased over the extended cold stratification period, regardless of cold stratification temperatures.…”

Section: Discussionmentioning

confidence: 99%

Effect of cold stratification on the temperature range for germination of Pinus koraiensis

Song

Zhang

et al. 2022

J. For. Res.

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Germination at low spring temperatures may offer a competitive advantage for the growth and survival of plant species inhabiting temperate forest ecosystems. Pinus koraiensis is a dominant species in temperate forests of northeastern China. Its seeds exhibit primary morphophysiological dormancy following dispersal in autumn, limiting natural or artificial regeneration: direct seeding and planting seedlings in spring. The aim of this study was to determine the optimum cold stratification temperature that induces germination to increase towards lower temperatures. Seeds from two populations (Changbaishan and Liangshui) were cold stratified at 0, 5 and 10 °C. Germination to incubation temperatures (10/5, 20/10, 25/15 and 30/20 °C; 14/10 h day/night) were determined after 2 and 4 weeks, and 5.5 and 6.5 months of cold stratification. After 5.5 months, approximately 68–91% of seeds from both populations germinated at incubation temperatures of 25/15 °C and 30/20 °C, regardless of cold stratification temperatures. When the cold stratification temperature was reduced to 0 °C and the period increased to 6.5 months, germination at 10/5 °C significantly improved, reaching 37% and 64% for the Changbaishan and Liangshui populations, respectively. After 6.5 months of cold stratification, there was a significant linear regression between cold stratification temperatures and germination at 10/5 °C. The range in temperatures allowing for germination gradually expanded to include lower temperatures with decreasing cold stratification temperatures from 10 to 5 °C and further to 0 °C.

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Conservation implications of seed germination studies of Aquilegia fragrans Benth.: A native and endangered medicinal plant species of Kashmir Himalaya

Bhat,

Magray,

Guleria

et al. 2024

South African Journal of Botany

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Seed dormancy and germination characteristics of Acer cinnamomifolium, a plant species endemic to China

Cited by 5 publications

References 12 publications

Effects of seasonal temperature regimes on embryo growth and endogenous hormones of Taxus chinensis var. mairei seeds

Effects of seasonal temperature regimes on embryo growth and endogenous hormones of Taxus chinensis var. mairei seeds

Effect of cold stratification on the temperature range for germination of Pinus koraiensis

Conservation implications of seed germination studies of Aquilegia fragrans Benth.: A native and endangered medicinal plant species of Kashmir Himalaya

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