Dormancy, viability and germination of Magnolia lanuginosa (Wall.) Figlar &amp; Noot. seeds: A threatened tree species of Northeast India

Borah, Rajib Kumar; Babina, Khumanthem; Choudhury, Hiranjit; Upadhaya, Krishna

doi:10.1016/j.chnaes.2021.09.007

Cited by 5 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cold-induced dormancy is a form of physiological quiescence that persists until the seed undergoes exposure to warmer periods. Studies [ 25 , 38 ] have demonstrated that seeds dispersed during autumn exhibit an enhanced dormancy release following pre-treatment with stratification. The degree of dormancy varies among species and is influenced by the duration of stratification.…”

Section: Discussionmentioning

confidence: 99%

“…A series of physiological transformations and the conversion of seed reserve materials occur during the transition from dormancy to non-dormancy in seeds, exhibiting a strong correlation with the duration of dormancy and determining whether or not a seed germinates [ 12 , 25 , 26 ]. The process of seed dormancy release is intricately linked to the provision of key stored substances that are closely associated with dormancy, as well as the maintenance of a dynamic balance in energy conversion within the seed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Methodological and Physiological Study during Seed Dormancy Release of Symplocos paniculata

Zhang,

Tang,

et al. 2024

Plants

View full text Add to dashboard Cite

Symplocos paniculata are reported to exhibit seed dormancy, which impedes its cultivation and widespread adoption. In this study, a comprehensive method was established to overcome seed dormancy by subjecting seeds to scarification in 98% H2SO4 for 10 min, followed by 1000 mg·L−1 GA3 soaking for 48 h and stratification at 4 °C for 100 days. The seed germination percentage has increased significantly, to a peak of 42.67%, though the seeds could not germinate timely by NaOH scarification. Additionally, the dynamic changes of key stored substances (proteins, soluble sugars, starches, and fats), associated enzyme activities (amylases, peroxidase, and catalase), and endogenous hormones (abscisic acid, gibberellic acid, and indole-3-acetic acid) in seeds were investigated. The results demonstrated a continuous degradation of starch and fat in S. paniculata seeds, while the levels of protein and soluble sugar exhibited fluctuations, which probably facilitated seed dormancy breaking through energy supply and transformation. The enzymatic activities underwent rapid changes, accompanied by a gradual decrease in ABA content within the seeds with increasing stratification time. Notably, GA3, GA3/ABA, and (GA3 + IAA)/ABA showed significant increases, indicating their positive regulatory roles in seed germination. This study clarified the dormancy mechanism and established an effective method for the release dormancy of S. paniculata seeds.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%