Results 31 to 40 of about 598,821 (278)

The sum of edge lengths in random linear arrangements [PDF]

open access: yes, 2019
Spatial networks are networks where nodes are located in a space equipped with a metric. Typically, the space is two-dimensional and until recently and traditionally, the metric that was usually considered was the Euclidean distance. In spatial networks,
Ferrer-i-Cancho, Ramon
core   +2 more sources

Influence of Partial Soil Wetting on Water Relation Parameters of the Olive Tree [PDF]

open access: yes, 2003
A drip versus pond irrigation experiment was carried out with 30-year-old ‘Manzanilla’ olive trees planted at 7 m 5 m in an orchard in Southwest Spain.
Díaz Espejo, Antonio   +3 more
core   +3 more sources

Butt rot occurrence in plus trees of Silver fir Abies alba Mill. and Norway spruce Picea abies (L.) from the Carpathians

open access: yesLeśne Prace Badawcze, 2016
Due to its hidden character, butt rot occurrence is not commonly included in the assessment of plus trees’ health status. Thus, the trees’ varied susceptibility to wood decay is not a target of breeding efforts.
Chomicz-Zegar Elżbieta   +3 more
doaj   +1 more source

Diversity assessment and selection of candidate plus trees of Ailanthus triphysa (Dennst.) Alston in Kerala

open access: yesElectronic Journal of Plant Breeding, 2021
Ailanthus triphysa [Dennst.] Alston is one of the most important and extensively used trees for making match splints in India. Despite its multiple uses, the genetic variability of the trees is little explored.
Jes Lalnunpuia*, A. V. Santhoshkumar, T. K. Hrideek, E. V. Anoop and P. Manju Elizabeth
doaj   +1 more source

Impact of soil application with humic acid and foliar spray of milagro bio-stimulant on vegetative growth and mineral nutrient uptake of Nonpareil almond young trees under Nubaria conditions

open access: yesBulletin of the National Research Centre, 2020
Background At present, agricultural production management techniques focus on greater commitment to environmental sustainability. As such, this study was carried out during two successive seasons (2018 and 2019) to investigate the impact of two natural ...
Mahmoud Sami Abourayya   +5 more
doaj   +1 more source

Pemantle's min-plus binary tree

open access: yes, 2017
33 pages, 1 ...
Auffinger, Antonio, Cable, Dylan
openaire   +2 more sources

Variability of morphometrical characteristics of needles at a clonal plantation of plus trees of scots pine (Pinus sylvestris L.)

open access: yesВавиловский журнал генетики и селекции, 2017
The formation of plus trees assortment for seed orchards is one of the most difficult problems of contemporary forest breeding. This problem is related to the risk of inbreeding depression of the seed progeny of plus trees, which do not have any defense ...
N. N. Besschetnova, V. P. Besschetnov
doaj   +1 more source

Genetic Diversity of Pedunculate Oak (Quercus robur L.) in Clonal Seed Orchards in Croatia, Assessed by Nuclear and Chloroplast Microsatellites

open access: yesSouth-East European Forestry, 2018
Background and Purpose: Natural stands of pedunculate oak in Croatia have been delineated in seed areas, zones and regions. The current bylaw recommends that the transfer of reproductive material remains limited within zones, but that it is permitted ...
Ida Katičić Bogdan   +4 more
doaj   +1 more source

The physico-chemical parameters and catalase activity of the soils in the range of phytogenic fields of Korean pine plus trees at Verkhneussuriysky forest station [PDF]

open access: yesВопросы лесной науки, 2020
The variability of physico-chemical parameters and enzymatic activity in the surface horizons of brown soil (Cambisols) in the range of phytogenous fields (PF) of Korean pine plus trees of different size and age, growing on the territory of the ...
L.N. Purtova   +2 more
doaj   +1 more source

Morphological variability of Quercus robur L. plus trees and clones in Podillia

open access: yesНаукові праці Лісівничої академії наук України, 2020
The results of the study of English oak (Quercus robur L.) plus trees based on the morphological features of their leaves, acorns, and peduncles are presented.
Svitlana Los , Lyudmila Smashnyuk
doaj   +1 more source

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