Results 61 to 70 of about 80,882 (198)

Germinação de Borreria densiflora var. latifolia sob condições controladas de luz e temperatura Germination of Borreria densiflora var. latifolia under controlled conditions of light and temperature

open access: yesPlanta Daninha, 2010
A germinação é um processo fundamental na dinâmica populacional das plantas daninhas. Sendo assim, a presente pesquisa teve como objetivo analisar a interação entre temperatura e luz sobre a germinação de uma nova variedade da planta daninha vassourinha ...
B.A.B. Martins   +3 more
doaj   +1 more source

Determination of Temperature and Light Optima for Seed Germination and Seedling Development of Spiderplant (Cleome gynandra L.) Morphotypes from western Kenya [PDF]

open access: yes, 2011
Spiderplant (Cleome gynandra) is an African indigenous vegetable (AIV) in many parts of sub-Saharan Africa, especially in most countries in eastern and southern Africa, where it is a semi-cultivated popular tropical species.
Groot, S.P.C.   +2 more
core   +1 more source

Some strategies for improvement of seed germination of smoke-tree (Cotinus coggygria Scop.); an endemic species of the Arasbaran Forests [PDF]

open access: yesمجله جنگل ایران, 2014
Smoke-tree(Cotinus coggygria Scop.)is one of the endemic valuable shrub species of Iran which has only distributed in the Arasbaran Forests. Natural regeneration of this specie is mostly asexual with the shape of root-sucker, and its sexual reproduction ...
doaj  

Guidelines for Expert Soybean Harvesting [PDF]

open access: yes, 1974
PDF pages ...
Byg, Delbert M.
core  

Regeneration in gap models: priority issues for studying forest responses to climate change [PDF]

open access: yes, 2001
Recruitment algorithms in forest gap models are examined with particular regard to their suitability for simulating forest ecosystem responses to a changing climate. The traditional formulation of recruitment is found limiting in three areas.
Clark, D.F.   +11 more
core   +2 more sources

Seedling survival of Handroanthus impetiginosus (Mart ex DC) Mattos in a semi-arid environment through modified germination speed and post-germination desiccation tolerance [PDF]

open access: yesBrazilian Journal of Biology, 2015
Abstract Uniform rapid seed germination generally forms a great risk for the plant population if subsequent intermittent precipitation causes desiccation and seedling death. Handroanthus impetiginosus can be found commonly in a wide range of biomes within Brazil including those that are semi-arid.
Martins, J. R.   +5 more
openaire   +6 more sources

Effects of Seed Nano-priming with Multiwall Carbon Nanotubes (MWCNT) on seed germination and seedlings growth parameters of mountain ash (Sorbus luristanica Bornm.) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2018
A comprehensive study on breaking dormancy of mountain ash(Sorbus luristanica Bornm.) endemic species is still lacking. Here, the high efficient potentials of multiwall carbon nanotubes were used to break seed dormancy and improve seed germination in ...
Seyyed Vahid Sayedena   +4 more
doaj   +1 more source

Influence of irrigation conditions in the germination of plasma treated Nasturtium seeds [PDF]

open access: yes, 2018
Plasma treatments had emerged as a useful technique to improve seed germination. In this work we investigate the influence of different irrigation conditions and plasma treatments on the germination of nasturtium seeds.
Espinós Manzorro, Juan Pedro   +5 more
core   +1 more source

Soil crusting in Western Samoa. Part I - Some examples of crusting and methods of control [PDF]

open access: yes, 1971
The problems and effects of soil crusting in Western Samoa are discussed. Illustrations of typical crust features include the glazed or 'frosted' surface of certain crusts, and dispersion mosaics.
Reynolds, S.G.
core   +1 more source

Bioinput treatments enhance germination and vigor of Mimosa bimucronata seeds

open access: yesPesquisa Agropecuária Tropical
Seed treatment with bioinputs can improve the efficiency of direct seeding by enhancing both its establishment and early growth. This study aimed to evaluate the effects of five commercial bioinputs (Acadian®, Asokop®, AURAS ...
Felipe Bueno Dutra   +4 more
doaj   +1 more source

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