Environmental Regulation of Weed Seed Dormancy and Germination

Qaderi, Mirwais M.

doi:10.3390/seeds2030020

Cited by 5 publications

(5 citation statements)

References 143 publications

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“…Gibberellic acid is a significant stimulator for germination, and it is considered an important factor in the breaking of dormancy [2,42]. It also has effects such as weakening the tissues surrounding the embryo [5], increasing its growth potential, overcoming inhibitors such as ABA [38], and stimulating the mobilization of reserves [43].…”

Section: Discussionmentioning

confidence: 99%

“…Germination and seedling establishment are important for plant growth, development, and adaptation [1]. Germination behavior is deemed an adaptive trait in relation to habitat properties [1,2]. Seed dormancy is a complex process by which the seeds schedule their germination through the delay of germination until the next season [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Seeds adapt to various habitats by evolving in different ways [5], and seed dormancy is a way of avoiding harsh environmental conditions. Further, seed batches have different dormancy levels and types [3], and this trait is another survival strategy of the plants [2]. The geophytes are used in the pharmaceutical and perfumery industries due to the secondary metabolites they contain.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Pre-Treatments on Seed Dormancy and Germination of Endemic Muscari bourgaei Baker

Kırmızı

2023

Agronomy

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M. bourgaei Baker is an endemic plant that grows in Türkiye. It has the potential to be an ornamental plant, so it is important to know its germination characteristics and seed morphological characteristics. We evaluated the effects of moist chilling (3 to 12 months) and application of gibberellic acid (GA3) (250 to 1000 mg/L−1) on seed germination under two different light regimes (light phase and dark phase) and four temperature regimes (20, 20/10, 25/15, and 15/10 °C). Seeds were collected from the subalpine belt of Mount Uludağ at an altitude between 2200 and 2300 m. M. bourgaei seeds were dormant and reached the highest germination percentage after 12 months of moist chilling. GA3 applications only have a limited effect on the breaking of dormancy in most cases. Maximum germination of 28 percent was obtained by the GA3 application of 1000 mg/L under dark phase with incubation at 15/10 °C. Scarification with sulfuric acid did not result in any germination. Seed germination of above 80 percent was obtained after 6 months of moist chilling and above 90 percent after 9 and 12 months of moist chilling. Intermediate physiological dormancy was determined as the type of dormancy. Our findings on seed germination and dormancy characteristics of M. bourgaei, which is an endemic alpine meadow plant, will contribute to the protection and development of the germplasm of this species.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Pre-Treatments on Seed Dormancy and Germination of Endemic Muscari bourgaei Baker

Kırmızı

2023

Agronomy

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“…Selain itu, asam absisat dan giberelin juga memainkan peran penting dalam stimulasi perkecambahan. Secara umum, faktor biotik dan abiotik mempengaruhi pematahan dormansi gulma (Qaderi, 2023). Pemulsaaan diduga membatasi faktor-faktor tersebut agar benih tidak terpapar.…”

Section: Jumlah Gulmaunclassified

PENGARUH PENERAPAN BERBAGAI BAHAN SEBAGAI MULSA TERHADAP LINGKUNGAN TUMBUH PADA TANAMAN FAMILI Solanaceae

Abdillah

2023

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Crop yields can be increased by the agronomic practice of mulching. Mulching influences the microclimate of roots and keeps the soil physically stable from exposure to sunlight and moisture. Despite using a variety of substances, mulching, in theory, just safeguards the soil's surface. Mulch is supposed to be able to function by using certain plant biomass that is hard to degrade. In the Barito Kuala District, biomass such as empty oil palm, water hyacinth, and apu wood signs are freely accessible, however, these resources are not well used for farming. The aim of this study was to identify the mulch type that can inhibit weed development, limit soil temperature rises, and preserve soil moisture content. Using a randomized block design and patterned random sampling, this study was carried out in Sidomakmur Village, Batola Regency, from January to May 2023. The BNT 5% model was used for the data analysis. There were four different types of treatments used: no mulch (M0), mulch covered in silver-black plastic (M1), mulch made from empty oil palm bunches (M2), mulch made from water hyacinth (M3), and mulch made from water lettuce (M4). According to the findings, mulching lowered soil heat, restricted weed development by 98% compared to no mulching, and kept soil moisture content above the permanent wilting threshold index. The best treatment to reduce temperatures in the soil and suppress the growth of weeds had mulching using empty palm oil bunches.

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“…The eco-physiological responses of trees to climate change can be similar or fluctuate across elevation gradients. The environmental factors including, temperature, moisture, light, nutrients, and gases, influence the parent plant during growth and development, affect morphological, physiological, biochemical, and molecular aspects of seeds (LeFait and Qaderi, 2022) and changes are portrayed by the seed size, shape, mass (Qaderi et al, 2003;Qaderi, 2023) and germinability (Gutterman, 2000;Qaderi et al, 2003). The growth and development of trees close to treeline regions or higher elevations are generally limited by temperature variations, whereas at lower elevations it is influenced by precipitation (Gaire et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

Singh,

Mittal,

Tewari

et al. 2024

Front. For. Glob. Change

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Abies spectabilis (East Himalayan Fir), a dominant timber-producing species in the Himalayas, plays a dynamic role in ecological balance and sustains various habitats across temperate to subalpine altitudes. Himalayan montane forests express signs of changes in the growth, regeneration, and population density of forest tree species due to ongoing climate change, including its upper distribution limit. The research was conducted at 30°11´02˝N and 79°39′36˝E, ranging from 3,100 to 3,500 m asl elevation in the treeline ecotone of western Himalaya. The study presents a comprehensive perspective on how water availability and its intricate interactions with climatic and ecological variables shape the dynamics of treeline ecosystems. The study’s phytosociological analysis of treeline sites revealed the complex interplay between species composition, adaptability, and regeneration potential. The eco-physiological aspects of water balance were thoroughly explored, underscoring how plants employ various strategies to cope with changing water availability. The soil moisture content ranged from 32.17 to 73.50%. The dynamic nature of water potential (pre-dawn (ΨPD) and mid-day (ΨMD)) across seasons and years reflects and varies between −0.13 and − 1.25 MPa, the species’ ability to adjust and manage water balance according to environmental shifts. Osmotic potential at full turgor varied from −0.72 to −1.77 MPa, these adjustments are crucial for key life cycle events of vegetative and reproductive phases of species. The strong correlation of water potential (Ψ) and phenophases emphasizes the importance of water status in regulating these vital processes. Furthermore, the study delved into the maturation and germination processes, highlighting the significance of Ψ and moisture content in seed development and germination success. The maximum germination of 46.33% was observed when the seed moisture content was 30.90 ± 3.11%. The observed correlations between cone characteristics and seed parameters indicate the existence of trade-offs that impact seed size, weight, and germination capacity, contributing to the overall fitness of the species.

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Environmental Regulation of Weed Seed Dormancy and Germination

Cited by 5 publications

References 143 publications

Effects of Pre-Treatments on Seed Dormancy and Germination of Endemic Muscari bourgaei Baker

Effects of Pre-Treatments on Seed Dormancy and Germination of Endemic Muscari bourgaei Baker

PENGARUH PENERAPAN BERBAGAI BAHAN SEBAGAI MULSA TERHADAP LINGKUNGAN TUMBUH PADA TANAMAN FAMILI Solanaceae

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

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