نتایج جستجو برای: seedling establishment

تعداد نتایج: 78161  

2015
Fei Zhang Jialin Yu Christopher R. Johnston Yanqiu Wang Kai Zhu Feng Lu Zhipeng Zhang Jianqiu Zou Wei Wang

Osmopriming with PEG has potential to improve seed germination, seedling emergence, and establishment, especially under stress conditions. This research investigated germination performance, seedling establishment, and effects of osmopriming with PEG on physiology in sorghum seedlings and their association with post-priming stress tolerance under various soil moisture stress conditions. Results...

Journal: :Annals of botany 2012
Pieter De Frenne Bente J Graae Jörg Brunet Anna Shevtsova An De Schrijver Olivier Chabrerie Sara A O Cousins Guillaume Decocq Martin Diekmann Martin Hermy Thilo Heinken Annette Kolb Christer Nilsson Sharon Stanton Kris Verheyen

BACKGROUND AND AIMS The response of forest herb regeneration from seed to temperature variations across latitudes was experimentally assessed in order to forecast the likely response of understorey community dynamics to climate warming. METHODS Seeds of two characteristic forest plants (Anemone nemorosa and Milium effusum) were collected in natural populations along a latitudinal gradient fro...

ژورنال: یافته 2012
سمیعی, کامران, ضابطی, سید محمود, عیسوند, حمیدرضا , اسماعیلی, احمد , رضائی نژاد, عبدالحسین ,

Background : Myrtle is a shrub and has a many applications in medicinal industries. Although the myrtle can reproduce by cutting, its reproduction by seed will bring more advantages such as economic advantages and better regeneration in nature or agriculture. Regarding to the difficult seed germination of this plant and also the need for extension the cultivation, this study was conducted for d...

Journal: :Ecology 2016
Marinés de la Peña-Domene Emily S Minor Henry F Howe

Many large-seeded Neotropical trees depend on a limited guild of animals for seed dispersal. Fragmented landscapes reduce animal abundance and movement, limiting seed dispersal between distant forest remnants. In 2006, experimental plantings were established in pasture to determine whether plantings enhance seed dispersal and, ultimately, seedling recruitment. We examined patterns of naturally ...

2010
Jeremy J. James Tony Svejcar

Seeding rangeland following wildfire is a central tool managers use to stabilize soils and inhibit the spread of invasive plants. Rates of successful seeding on arid rangeland, however, are low. The objective of this study was to determine the degree to which water availability, invasive plant abundance, and seeding technology influence postfire seedling establishment. Across four fire complexe...

2015
Jeremy Arkin

Studies of tree regeneration following forest fires along the Colorado Front Range offer valuable insights into how climate change could be influencing conifer seedling establishment statewide. While the relatively hotter and drier conditions observed along the Front Range may not be enough to lethally damage mature trees, there is a strong potential that these novel conditions could prevent th...

Dejene Tadesse Banjaw Tigist Germen Wolde

Objective: Chamomile is one of the commercial medicinal plants produced in Ethiopia. Besides, it is priority crop in national aromatic and medicinal plants research project in the country. As chamomile production affected by production techniques this activity was conducted to identify the effect of seed storage duration and seedling raising methods on its seedling establishmen...

Journal: :Current Biology 2010
Susana Ubeda-Tomas Malcolm J. Bennett

How do plants determine the number of dividing cells required to optimise root growth and ensure seedling establishment? The signals auxin, cytokinin and gibberellin control the balance between cell division and differentiation by regulating SHY2.

2017
Linda Gorim Folkard Asch

Climate change poses a threat to sorghum production systems by shifting the onset of the rainy season to a later date, increasing the risk of crop failure during crop establishment. The effects of drought on sorghum during seedling establishment have not been determined. Coating seeds with a water absorbing substance offers a way to buffer the seed against insufficient moisture in the surroundi...

2014
E. Petter Axelsson Tomas Lundmark Peter Högberg Annika Nordin

Aboveground competition is often argued to be the main process determining patterns of natural forest regeneration. However, the theory of multiple resource limitation suggests that seedling performance also depends on belowground competition and, thus, that their relative influence is of fundamental importance. Two approaches were used to address the relative importance of aboveand below-groun...

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