Results 31 to 40 of about 109,475 (255)

Natural hybridization between Populus nigra L. and P. x canadensis Moench. Hybrid offspring competes for niches along the Rhine river in the Netherlands [PDF]

open access: yes, 2008
Black poplar (Populus nigra L.) is a major species for European riparian forests but its abundance has decreased over the decades due to human influences.
Arens, P.F.P.   +6 more
core   +2 more sources

Virola surinamensis (Rol. ex Rottb.) Warb. (Myristicaceae): morphological aspects of fruit, seed and seedling [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2006
Virola surinamensis (Roll. ex Rottb.) Warb.. It is well-known popularly as ucuúba, it is a tree of 40 m of height, usually found in places with swampy flooded, generally close to igapós. This study objectified describes the morphology of the fruit, seed,
Ely Simone Cajueiro Gurgel   +3 more
doaj  

Survey dan Identifikasi Penyebab Penyakit Damping-Off pada Sengon (Paraserianthes falcataria) di Persemaian Permanen IPB (The Cause of Sengon (Paraserianthes falcataria) Damping-off Disease: Survey and Identification in Permanent Nursery, IPB University)

open access: yesJurnal Sylva Lestari, 2020
Damping-off generally occurs in seedlings that have just germinated. This disease can cause severe damage, decay, and seedling death. The research was aimed to compute disease incidence and severity of damping-off and to identify the causal of damping ...
Yunik Istikorini, Okta Yulia Sari
doaj   +1 more source

Phytochrome activates the plastid-encoded RNA polymerase for chloroplast biogenesis via nucleus-to-plastid signaling. [PDF]

open access: yes, 2019
Light initiates chloroplast biogenesis by activating photosynthesis-associated genes encoded by not only the nuclear but also the plastidial genome, but how photoreceptors control plastidial gene expression remains enigmatic.
Blaha, Gregor M   +6 more
core   +2 more sources

Jacaranda copaia (Aubl.) D. Don. subsp. spectabilis (Mart. ex A. DC) Gentry (Bignoniaceae): morphological aspects of fruit, seed and seedling [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2006
Jacaranda copaia (Aubl.) D. Don. subsp. spectabilis (Mart. ex A. DC) Gentry is the only species known as Parapará in Amazonian, they occur at the Amazonian firm forests, is distributed in the states of Amazon, Pará, Mato Grosso, Tocantins, Roraima, and ...
Ely Simone Cajueiro Gurgel   +3 more
doaj  

RESPONSE OF TOMATO PLANTS EXPOSED TO TREATMENT WITH NANOPARTICLES

open access: yesEQA, 2012
In this work the response of Tomato plants cv. Micro-Tom to nanoparticles (NPs) treatment was investigated. Tomato seedlings were grown in hydroponic condition and NPs treatments were carried out by adding Fe3O4 or TiO2 NPs to nutrient solution.
Tommaso Giordani   +7 more
doaj   +1 more source

Phytopathogenic fungi in forest nurseries of Middle Siberia

open access: yesiForest - Biogeosciences and Forestry, 2020
The paper presents the results of phytopathogenic fungi determination in bare-root forest nurseries of Middle Siberia. Genetic analysis of pathogenic microflora of Pinus sylvestris L., Pinus sibirica Du Tour and Picea obovata Ledeb.
Sheller MA   +4 more
doaj   +1 more source

Identification of Broadleaf Weed Seedlings Commonly Found in Florida Sugarcane: A Quick Reference Guide

open access: yesEDIS, 2023
This publication describes the proper identification of broadleaf weed seedlings commonly found in Florida sugarcane fields and aims to assist growers in selecting effective control measures. Written by D. C. Odero, M. VanWeelden, and C.
D. C. Odero, M. VanWeelden, C. Kammerer
doaj   +1 more source

Identification of Genomic Regions Associated with Seedling Frost Tolerance in Sorghum

open access: yesGenes, 2023
Sorghum bicolor (L.) Moench is the fifth most valuable cereal crop globally. Although sorghum is tolerant to drought and elevated temperatures, it is susceptible to chilling, frost, and freezing stresses. Sorghum seeds planted in April may encounter frequent frost during late April and early May. Early spring freezing temperatures adversely affect crop
Niegel La Borde, Ismail Dweikat
openaire   +2 more sources

An early secretory pathway mediated by GNOM-LIKE 1 and GNOM is essential for basal polarity establishment in Arabidopsis thaliana [PDF]

open access: yes, 2015
Spatial regulation of the plant hormone indole-3-acetic acid (IAA, or auxin) is essential for plant development. Auxin gradient establishment is mediated by polarly localized auxin transporters, including PIN-FORMED (PIN) proteins. Their localization and
Doyle, Siamsa M   +10 more
core   +1 more source

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