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Journal articles on the topic 'Plus trees'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Hasibuan, Moses, Indriyanto ., and Melya Riniarti. "Inventarisasi Pohon Plus Dalam Blok Koleksi Di Taman Hutan Raya Wan Abdul Rachman." Jurnal Sylva Lestari 1, no. 1 (2019): 9. http://dx.doi.org/10.23960/jsl119-16.

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Plus tree inventory was an activity for collecting and compiling data.Collection block was an area within Great Forest Park region that contains different types of plant, either endemic or non-endemic plants, which serves for protection and preservation, research, science, education, support the cultivation, culture, tourism and recreation.The information about the existence of plus trees on the collection block still rare.So, plus tree inventory still necessary to fulfill the data.This research was held in Wan Abdul Rachman Great Forest Park Collection Block at February to March 2012.The aim

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2

Burk, Thomas E. "Sticks Plus Trees Meets 3P." Northern Journal of Applied Forestry 29, no. 2 (2012): 93–96. http://dx.doi.org/10.5849/njaf.11-040.

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3

Крюкова, S. Kryukova, Ширнин, and Viktor Shirnin. "Oakwood and plus trees common oakfruiting." Forestry Engineering Journal 6, no. 2 (2017): 22–30. http://dx.doi.org/10.12737/19950.

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The objects of research were the groves of the Central Chernozem and plus trees selected in them. Oakwood in the re-gion has long been intensively exploited, their area reduced by 2-3 times, and the gene pool is severely malnourished. Restor-ing oak occurs very difficult with large omissions and economic costs. The main reason is the lack or total absence of acorns high quality selection. Research is devoted to the knowledge of the regularity and fruiting oak plus trees.

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4

Arrabal, C., M. Cortijo, B. Fernández de Simón, M. C. García-Vallejo, and E. Cadahía:. "Pinus pinaster Oleoresin in Plus Trees." Holzforschung 56, no. 3 (2002): 261–66. http://dx.doi.org/10.1515/hf.2002.043.

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Summary The present paper establishes the relationship between certain components of oleoresin and the character of a tree as high producer (plus tree). The composition of the oleoresin (monoterpenes, sesquiterpenes, neutral diterpenes and resin acids) of Pinus pinaster in plus trees was studied by gaschromatography/mass spectrometry. The main components of the monoterpenes are α-pinene, β-pinene, limonene + β-phellandrene; of the sesquiterpenes β-caryophylene and longifolene; of neutral diterpenes isoabienol, abienol, isopimaral, pimaral, 11,13-labdien-8-ol and of resin acids levopimaric + pa

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Vyas, Manisha, and Y. Bansal. "Selection of Superior (Plus) Tree Phenotypes in A Multipurpose Tree Species Semul (Bombax ceiba L.)." Indian Journal of Forestry 30, no. 1 (2007): 51–53. http://dx.doi.org/10.54207/bsmps1000-2007-iuz129.

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The growth and survival characteristics of Bombax ceiba L. (Bombacaceae) were studied to select outstanding plus trees. From 568 trees surveyed in and around Jabalpur, 9 could be marked as plus trees selected. The plus trees were found resistant to the attack of defoliator, termites and other parasites and also varied significantly in other physical parameters.

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6

Wei, Linglong, Jarrod J. Morrice, Rodney V. Tocco, and Bernard H. Zandstra. "Fraser Fir Tolerance and Weed Control with Hexazinone + Sulfometuron-methyl." HortTechnology 23, no. 3 (2013): 294–300. http://dx.doi.org/10.21273/horttech.23.3.294.

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Experiments were conducted to test a new herbicide for posttransplant application in Christmas trees. A premix containing 68.6% hexazinone and 6.5% sulfometuron-methyl was applied at 3.0, 4.5, 6.0, 7.5, and 9.0 oz/acre plus 0.25% v/v nonionic surfactant (NIS) to recently transplanted fraser fir (Abies fraseri) Christmas trees and trees transplanted for 1 year in Spring 2008. The treatments were repeated on the same plots in 2009 and 2010. At Gobles, MI, trees treated with 7.5 oz/acre of hexazinone plus sulfometuron had increased stem diameter, after one growing season, and trees treated with 9

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7

Kostrikin, Viktor, Viktor Shirnin, and Svetlana Kryukova. "Criteria for Assessment of Plus Oak Stands." Lesnoy Zhurnal (Forestry Journal), no. 4 (July 21, 2021): 68–79. http://dx.doi.org/10.37482/0536-1036-2021-4-68-79.

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In the Voronezh region the share of seed plantations is less than half of the area of oak forests. Therefore, the regeneration of high-quality forests of seed origin with improved hereditary characteristics is a major challenge. In the production of seeds of improved breeding categories, plus stands play an important role. They produce improved seeds, if minus trees are removed. Moreover, permanent forest seed plots which were planted by the plus stand offspring, produce seeds of the required breeding category. Current laws and regulations do not provide specific recommendations on selection o

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8

Muin, Abdurrani, Oktariana Rini Lestari, and Riene Suci Wulandari. "SELEKSI POHON PLUS PADA UJI KETURUNAN Shorea leprosulaDI KALIMANTAN TENGAH." Jurnal Pemuliaan Tanaman Hutan 15, no. 2 (2021): 137–44. http://dx.doi.org/10.20886/jpth.2021.15.2.137-144.

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he progeny trial of Shorea leprosula was established in Central Kalimantan under the IUPHHK-HA management of PT. Erna Djuliawati by planting 30 families to examine the genetic superiority of trees asplywood raw material. The trial was laid-out using 8 blocks, 4 tree-plots and a spacing of 6 x 3 m. The aim of the study was to practice the plus trees selection in the progeny trial. The study was conducted using a survey method on phenotypically superior trees based on a diameter at breast height (dbh) baseline of ≥ 30 cm. The data collected and analyzed for the plus trees and comparison trees we

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Laur, Natal’ya V., Anatoliy P. Tsarev, Raisa P. Tsareva, and Vadim A. Tsarev. "The Archives of Clones of Scots Pine Plus Trees in the Republic of Karelia." Lesnoy Zhurnal (Forestry Journal), no. 2 (April 2, 2024): 76–89. http://dx.doi.org/10.37482/0536-1036-2024-2-76-89.

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Archives of clones (ACs) of plus trees (PTs) are laid to preserve their genotypes. The genotype of each plus tree is unique, and its loss is irreplaceable. In addition, scientific observations are carried out in the archives, in particular, the selection of clones for forest seed orchards (FCOs) of increased genetic value (FSO-I,5). The aim of this research has been to study the dynamics of creating and preserving the archives of clones, as well as their state, in Russia in general and in the Republic of Karelia in particular. As of 2019 there were 31,514 plus trees in the Russian Federation,

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10

Sheikina, O. V., and E. M. Romanov. "Variability of Scots pine (<i>Pinus sylvestris</i> L.) plus trees in the Middle and Upper Volga Region with the use of ISSR markers." Vavilov Journal of Genetics and Breeding 28, no. 2 (2024): 148–54. http://dx.doi.org/10.18699/vjgb-24-17.

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One of the serious issues in forest breeding is how to reduce the variability level in breeding populations of forest tree species that is a set of selected plus trees. The problem is that variability is jeopardized by the risk of losing the genetic diversity of future artificial forests, as well as emerging inbreeding depression in the seed plus trees progeny. DNA markers are an effective tool to study variability, identify features of the genetic structure and degree of plant differentiation. The research focuses on assessing the level of the genetic diversity and the degree of differentiati

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11

Elżbieta, Chomicz-Zegar, Niemtur Stanisław, Kapsa Mariusz, and Ambroży Sławomir. "Butt rot occurrence in plus trees of Silver fir Abies alba Mill. and Norway spruce Picea abies (L.) from the Carpathians." Lesne Prace Badawcze / Forest Research Papers 77, no. 3 (2016): 212–20. https://doi.org/10.1515/frp-2016-0023.

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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. The aim of the study was to determine the extent of butt rot in fir and spruce plus trees from Carpathian seed stands. We employed the novel and non-invasive diagnostic method of sonic tomography to determine presence and severity of decay at the base of 110 plus trees of silver fir and 42 of Norway spruce. Butt rot in various stages of development occurred in 63% of invest

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Besschetnova, Nataliya N., Vladimir P. Besschetnov, Nikolay A. Babich, and Vladimir A. Bryntsev. "Differentiation of Plus Trees of Scots Pine by Xylem Conditions." Lesnoy Zhurnal (Forestry Journal), no. 3 (August 1, 2023): 9–25. http://dx.doi.org/10.37482/0536-1036-2023-4-9-25.

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An essential stage in the establishment of seed orchards is the formation of an optimal composition, avoiding inbreeding depression in the produced seed material, which develops as a result of crossbreeding between closely related plus trees. The negative effect can be reduced by ensuring the genetic heterogeneity of the seeds. The purpose of this study is to give a relative evaluation of the plus trees of Scots pine (Pinus sylvestris L.) as one of the most economically significant tree species on the European continent according to their physiological conditions. The formation and lignificati

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Sukhorukikh, Yu I., S. G. Biganova, A. P. Glinushkin, and L. L. Sviridova. "Criteria for selecting plus trees for protective forestry." New Technologies 19, no. 1 (2023): 69–79. http://dx.doi.org/10.47370/2072-0920-2023-19-1-69-79.

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Protective forest strips are the basis of the environmental frame on sparsely wooded areas. To create such highly productive objects, the selection of the corresponding gene pool is required. Plus trees the representatives of this gene pool. The aim of the research is to develop criteria for highlighting plus trees for protective forestry, focused on the creation of plantings, the main parameter of which is the working height. 16 trial areas of cherry oak (Quércus róbur L.), black locust (Robinia Pseudoacia L.), green ash (Fraxinus lanceolata B.), European ash (Fraxinus excelsior L.), thorney

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14

Voitiuk, Vasyl, Valentyna Andreieva, Oleksandr Kychyliuk, Anatolii Hetmanchuk, Marcin Klisz, and Vasyl Mohytych. "Application of growth traits and qualitative indices for selection of Scots pine (Pinus sylvestris l.) elite trees. A case study from Volyn region, western ukraine." Folia Forestalia Polonica 62, no. 3 (2020): 199–209. http://dx.doi.org/10.2478/ffp-2020-0019.

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AbstractSince the plus trees are selected based on phenotype, it is necessary to evaluate them in progeny test. The aim of this study is an indication of selecting elite mother trees based on the results from half-sib progeny test trials. As study sites, two Scots pine half-sib progeny tests were selected. During evaluation, the progenies had reached the age of 38 and 40 years, respectively. In both progeny trials, quantitative parameters and qualitative traits of Scots pine half-sib progenies were investigated. Based on these data, complex evaluation of half-sib families was carried out. We c

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15

Chomicz-Zegar, Elżbieta, Stanisław Niemtur, Mariusz Kapsa, and Sławomir Ambroży. "Butt rot occurrence in plus trees of Silver fir Abies alba Mill. and Norway spruce Picea abies (L.) from the Carpathians." Forest Research Papers 77, no. 3 (2016): 212–20. http://dx.doi.org/10.1515/frp-2016-0023.

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Abstract 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. The aim of the study was to determine the extent of butt rot in fir and spruce plus trees from Carpathian seed stands. We employed the novel and non-invasive diagnostic method of sonic tomography to determine presence and severity of decay at the base of 110 plus trees of silver fir and 42 of Norway spruce. Butt rot in various stages of development occurred in 63% of investiga

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16

Hogmire, Henry W., Tim Winfield, Chris Grove, Kate Collins, and Jill Jilek. "Sevin XLR Plus Block Treatment, 1993." Arthropod Management Tests 19, no. 1 (1994): 8. http://dx.doi.org/10.1093/amt/19.1.8.

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Abstract A treatment which included Sevin XLR PLUS and a standard treatment were each applied to a 1/3 acre block (6 rows × 6 trees/row) of 13-yr-old trees on M7A. Test trees measured 17 ft. in height and 13.5 ft. in width and were planted 20 X 20 ft. apart. Insecticides were applied with a Swanson DA500A airblast sprayer, at 2.4 mph applying 100 gpa. Dates of application were 27 May (first cover [ICJ), 14 Jun (second cover [2C]), 29 Jun (third cover [3C]), 15 Jul (fourth cover [4C]), 30 Jul (fifth cover [5C]), 12 Aug (sixth cover [6C]), 26 Aug (seventh cover [7C]), and 8 Sep (eighth cover [8C

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17

Los, Svitlana, and Lyudmila Smashnyuk. "Morphological variability of Quercus robur L. plus trees and clones in Podillia." Наукові праці Лісівничої академії наук України, no. 20 (June 4, 2020): 107–19. http://dx.doi.org/10.15421/412010.

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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. Samples were collected from both plus trees in forest stands and clones in clonal archive of English oak in Vinnytsia Region. In total, 41 trees were analyzed by 7 features of their leaves and 30 of those trees – by 9 morphological features of their acorns and peduncles. A point assessment was used for nonmetric indicators.  To compare plus trees by morphological features, the graphical method of morphotypes image representation w

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18

ARPIWI, NI LUH, I. GUSTI AYU SUGI WAHYUNI, I. KETUT MUKSIN, and SUTOMO . "Conservation and selection of plus trees of Pongamia pinnata in Bali, Indonesia." Biodiversitas Journal of Biological Diversity 19, no. 5 (2018): 1607–14. http://dx.doi.org/10.13057/biodiv/d190502.

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Arpiwi NL, Wahyuni IGAS, Muksin IK, Sutomo. 2018. Conservation and selection of plus trees of Pongamia pinnata in Bali,Indonesia. Biodiversitas 19: 1607-1614. Pongamia pinnata (L.) Pierre or commonly known as pongamia is a tropical legume treeproduces oil seeds for biodiesel feedstock. The aims of present study were mapping growth sites of pongamia in Bali, counting thenumber of trees and selecting plus trees based on growth parameters such as total height, clear bole height, diameter at breast height,canopy width, and oil content. Method of plus tree selection was comparison tree where one ca

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Zhadan, I. B., S. A. Los, L. O. Torosova, O. M. Plotnikova, and V. G. Grygoryeva. "Application of GIS technologies for accounting plus trees." Forestry and Forest Melioration, no. 143 (December 26, 2023): 50–60. http://dx.doi.org/10.33220/1026-3365.143.2023.50.

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Introduction  Nowadays, an important forest genetic resources (FGR) conservation activity is the systematization of information on gene pool conservation units in electronic databases. It should be noted, however, that the existing international databases mainly relate only to units represented by populations (stands), which are visualized as polygons on the map. As the scientists from the Department of New Information Technologies in URIFFM have implemented the website “Geoportal: Forests of Ukraine”, it became technically possible to add information on plus trees to its functionality a

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20

Hall, J. Peter. "Using the Pilodyn Tester in Selecting Plus Trees." Northern Journal of Applied Forestry 5, no. 3 (1988): 170–71. http://dx.doi.org/10.1093/njaf/5.3.170.

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Abstract The pilodyn tester was assessed in stands of black spruce, white spruce, and tamarack to determine its value in selecting trees of higher than average specific gravity. Trees were sampled from natural stands representative of areas where plus trees are selected. The specific gravity was determined using an 11 mm increment core. Pilodyn pin readings from the four sides of the tree were then correlated with measured specific gravity. Statistically significant correlations were obtained in 17 of 18 stands. It is recommended that specific gravity be assessed using four pin penetration rea

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Zhou, Linghua, Zhiqiang Chen, Sven-Olof Lundqvist, et al. "Genetic analysis of wood quality traits in Norway spruce open-pollinated progenies and their parent plus trees at clonal archives and the evaluation of phenotypic selection of plus trees." Canadian Journal of Forest Research 49, no. 7 (2019): 810–18. http://dx.doi.org/10.1139/cjfr-2018-0117.

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A two-generation pedigree involving 519 Norway spruce (Picea abies (L.) Karst.) plus trees (at clonal archives) and their open-pollinated (OP) progenies was studied with the aim to evaluate the potential of plus-tree selection based on phenotype data scored on the plus trees. Two wood properties (wood density and modulus of elasticity, MOE) and one fiber property (microfibril angle, MFA) were measured with a SilviScan instrument on samples from one ramet per plus tree and 12 OP progenies per plus tree (total of 6288 trees). Three ramets per plus tree and their OP progenies were also assessed f

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Johnsen, Øystein, and Geir Østreng. "Effects of plus tree selection and seed orchard environment on progenies of Piceaabies." Canadian Journal of Forest Research 24, no. 1 (1994): 32–38. http://dx.doi.org/10.1139/x94-005.

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Open-pollinated progenies from selected plus trees of Piceaabies (L.) Karst., and from average performing trees (controls) in each of five northern (65–66°N) natural stands in Norway, were tested for growth, timing of bud set, and autumn frost hardiness during the first growing season. The plus trees had also been grafted in a southern seed orchard, Lyngdal (58°N). Crosses were performed in the orchard, using orchard pollen from the same plus trees. All progenies were grown in a common test. There were no differences between natural stand progenies from plus tree and from control stand trees,

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Tho, Hoang Vu. "Plus tree selection of Gao vang (Naucleo Orientalis) for big timber developing of indigenous plantations." Journal of Forestry Science and Technology 8, no. 2 (2023): 47–57. http://dx.doi.org/10.55250/jo.vnuf.8.2.2023.047-054.

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The results of early growths assessment of the Gao vang experimental planting area at the stage 7 year old and the selection of plus trees for big timber plantations show that the average growths in diameter at breast height, crown diameter, total height and trunk volume of plus trees (TG) reached a value of 16.74 cm; 5.24m; 10.74m; and 118.20 dm3 per tree, respectively, exceeding the accompanying forest tree group (ĐR) of 1.60; 1.02; 1.15; and 2.82 times, respectively, under the same comparison criteria, environmental conditions and time. The forest tree groups including, ĐR1; ĐR2; ĐR3; ĐR4;

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Konovalov, Vladimir F., Aigul A. Gabitova, Aydar К. Gabdelkhakov, Dina A. Rafikova, and El’vira R. Khanova. "Phenotypic Assessment of Clones of Scots Pine (Pinus sylvestris L.) Plus Trees in the Forest-Steppe Zone of the Bashkir Cis-Urals." Lesnoy Zhurnal (Forestry Journal), no. 4 (July 20, 2024): 9–25. http://dx.doi.org/10.37482/0536-1036-2024-4-9-25.

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An assessment of the main morphometric features of the ramets of clones of Scots pine plus trees in a comparative aspect has been carried out. The vegetative progeny of plus trees of the species are represented as part of a clonal plantation created in 2005 in the Dyurtyulinskiy forestry of the forest-steppe zone of the Republic of Bashkortostan in an area with the С2 type of forest growing conditions. Compliance with the breeding and genetic principle of phenotypic assessment of intraand intergroup differences in Scots pine clones and ramets, as well as methodical and methodological requireme

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Fernández-Cruz, Javier, Josefa Fernández-López, María Eugenia Miranda-Fontaíña, Raquel Díaz, and Gabriel Toval. "Molecular characterization of Spanish Prunus avium plus trees." Forest Systems 23, no. 1 (2014): 120. http://dx.doi.org/10.5424/fs/2014231-04580.

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Kim, In Sik, Kyung Mi Lee, Donghwan Shim, Jin Jung Kim, and Hye-In Kang. "Plus Tree Selection of Quercus salicina Blume and Q. glauca Thunb. and Its Implications in Evergreen Oaks Breeding in Korea." Forests 11, no. 7 (2020): 735. http://dx.doi.org/10.3390/f11070735.

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This study was conducted to select plus trees of two evergreen oaks, Quercus salicina and Q. glauca, in Korea. Evergreen oaks are distributed in subtropical region in Korea and have recently emerged as one of the alternative tree species against climate change. Accordingly, a tree breeding program is underway to foster evergreen oaks as a reforestation species for the future. Through intensive survey on the distribution range, 15 stands (8 for Q. salicina, 3 for Q. glauca, and 4 for both species) were selected as base populations. To select candidate trees, we developed a subjective grading sy

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Tateno, Minoru, Ayaka Enami, Koji Fujinami, and Hisashi Ohta. "Polymorphisms in Cha o 1 and Cha o 2, major allergens of Japanese cypress (Chamaecyparis obtusa) pollen from a restricted region in Japan." PLOS ONE 16, no. 12 (2021): e0261327. http://dx.doi.org/10.1371/journal.pone.0261327.

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Japanese cedar pollinosis is a major seasonal allergy in Japan, and Japanese cypress pollinosis is a growing concern because the cypress pollen season follows the cedar pollen season and cross-reactivity among allergens occurs between these closely related species. Allergens purified from pollen under unspecified collecting conditions can potentially heterogenous allergens profiles and batch to batch variability, and amino acid sequence variants in allergens possibly exist among trees. Polymorphisms have not been investigated for the cypress pollen major allergens, Cha o 1 and Cha o 2. Our aim

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Hull, Larry A. "Pear, Evaluation of Dimilin For Pear Psylla Control, 1986." Insecticide and Acaricide Tests 12, no. 1 (1987): 66. http://dx.doi.org/10.1093/iat/12.1.66.

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Abstract The trial was conducted in a 3 acre block of ‘Bartlett’ pears near Biglerville, PA. Six trees were randomly chosen in the block for monitoring. Three trees at the edge of the block were left untreated and served as controls. Chemicals were applied as a complete spray to both sides of trees with a Bean airblast sprayer calibrated to deliver 50 gal/acre. Application dates and rates were as follows: 1 Apr—bud burst (Dimilin 25WP 454 g plus 60 sec. oil 10.1 liters/acre), 14 Apr—white bud (Dimilin 25WP 454 g plus Manzate 200 1.2 Kg/acre). When PP populations on control trees reached damagi

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Saridha, S., and T. Jothika. "Construction of Derivation Trees of Plus Weighted Context Free Grammars." International Journal for Research in Applied Science and Engineering Technology 11, no. 3 (2023): 1821–27. http://dx.doi.org/10.22214/ijraset.2023.49732.

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Abstract: The core of this paper is to construct Derivation Trees of Plus Weighted Context Free Grammars and the bonding between Plus weighted Context Free grammar and Plus weighted Context Free Dendrosystem is established.

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Rangkuti, Ahmad Baiquni, Kansih Sri Hartini, and Samuel Jonathan Siahaan. "Plus tree selection of meranti bukit ( Shorea platyclados) in Dolok Sibual Buali Nature Reserve, North Sumatra." IOP Conference Series: Earth and Environmental Science 1445, no. 1 (2025): 012102. https://doi.org/10.1088/1755-1315/1445/1/012102.

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Abstract Selecting the right seed source or plus tree is one of the most important aspects in breeding activities forest plants, either generatively or vegetatively. Selection of the right plus tree determines the results and process of the next activity. In determining plus trees, several characters are needed that can be used as parameters in assessing the phenotype of a tree. parameters in assessing the phenotype of a tree. Assessment of phenotype characters can also determine the form of growth found in a tree. contained in a tree. The purpose of this research is to determine the candidate

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Matveeva, Rimma, Iuliia Shcherba, and Natal'ya Shenmayer. "Variability of reproductive development of half-sibs of Pinus Sibirica Du Tour." Forestry Engineering Journal 13, no. 1 (2023): 99–111. http://dx.doi.org/10.34220/issn.2222-7962/2023.1/7.

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Selection of Pinus sibirica Du Tour plus trees by seed productivity, breeding of half-sibs, characterized by an abundance of cones and pollen, serve as the basis for the creation of high-yielding target plantations. The aim of the research was to select families with a large percentage of early reproductive development's trees, and specimens with a lot of cones and shoots with male inflorescences. Also, to select specimens in different families of Pinus sibirica Du Tour plus trees by early reproductive development, taking into account the formation of cones and pollen. The subject of the study

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Ilinov, Aleksey A., and Boris V. Raevsky. "Genetic diversity of Scots pine trees of different selection categories in plus stands of Karelia." Ecological genetics 19, no. 1 (2021): 23–35. http://dx.doi.org/10.17816/ecogen50176.

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Background: Genetic control is necessary at all stages of forest selection for the effective use of objects of unified genetic-selection complex (UGSC). This is particularly important for performing a breeding inventory. The aim of the present study was to evaluate the genetic variability of trees of different selection categories in several plus stands of Scots pine. Materials and methods: 116 trees of Scots pine of various selection categories have been selected from four plus stands within the middle taiga subzone of Karelia. The analysis of the pine samples had been performed using f

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Yeny, Irma, Fifi Gus Dwiyanti, Cecep Kusmana, et al. "Morfologi Kandidat Pohon Plus Avicennia marina (Forsk.) Vierh pada Ekosistem Mangrove Segara Anakan, Kabupaten Cilacap, Provinsi Jawa Tengah." Jurnal Penelitian Hutan Tanaman 21, no. 2 (2024): 87–100. https://doi.org/10.59465/jpht.v21i2.374.

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Abstract The mangrove and laguna ecosystems in Segara Anakan have experienced degradation which hasreduced the morphological diversity of mangrove trees. The study aimed to examine the morphological variations of A. marina trees in the Segara Anakan mangrove ecosystem to identify candidate plus trees (CPT) that could serve as potential seed sources. The study was conducted on 25 plots in the eastern part of Segara Anakan Lagoon. The CPT assessment (scoring) used the comparison tree method referring to the modified Carolina State method. Measurement of morphological characters included total tr

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Bogdan, S., I. Katičić-Trupčević, and D. Kajba. "Genetic Variation in Growth Traits in a Quercus robur L. Open-Pollinated Progeny Test of the Slavonian Provenance." Silvae Genetica 53, no. 1-6 (2004): 198–201. http://dx.doi.org/10.1515/sg-2004-0036.

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Abstract The study presents evaluation of an open-pollinated progeny test of 21 selected plus trees from Slavonian pedunculate oak provenance in Croatia (in the central part of Drava river valley). The test was established in 1992 with two-year-old seedlings. Heights were measured at 5 to 13 years and diameters at breast height (DBH) at 10 to 13 years after sowing. Variances caused by the population within provenance effect were not significant during the studied period. In contrast, variance components caused by family effect were statistically significant, and ranged from 11.1 to 18.6% and f

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Warrier, Kannan C. S., R. Abinaya, K. Gireesan, and M. Jayakumar. "Wood Fibre Properties and Genetic Divergence in Haldina cordifolia (Roxb.) Ridsdale." International Journal of Environment and Climate Change 13, no. 11 (2023): 617–27. http://dx.doi.org/10.9734/ijecc/2023/v13i113206.

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Haldina cordifolia is a multipurpose tree species. It is one of the best Indian timbers suitable for flooring, panelling and for railway carriages. It is also suitable for pulp and paper, construction, window frames, furniture, bobbins, piano keys and rulers. Wood is also used for pencil manufacturing. Though many phyto-chemicals and pharmacological compounds have been identified from this tree species, the species has not been domesticated so far. ICFRE-Institute of Forest Genetics and Tree Breeding, Coimbatore has initiated a tree improvement programme in this tree species since 2018 and plu

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Engle, David M., Jimmy F. Stritzke, and P. Larry Claypool. "Effect of Paraquat Plus Prescribed Burning on Eastern Redcedar (Juniperus virginiana)." Weed Technology 2, no. 2 (1988): 172–74. http://dx.doi.org/10.1017/s0890037x00030347.

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Paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) was evaluated as a pretreatment for eastern redcedar (Juniperus virginiana L. # IUPVI) before spring burning in tallgrass prairie. Wetting sprays of paraquat at 0.3 g ai/L or 0.6 g/L were applied to crowns of small (0.8 to 1.5 m), medium (1.5 to 2.5 m), and large (2.5 to 5.0 m) eastern redcedar trees in August 1983 and 1984 before prescribed burns in the springs of 1984 and 1985. Paraquat alone at the 0.6 g/L concentration killed about 90% of the crown of small trees but as little as 30% of the crown of large trees. Paraquat pretreatments increase

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Butac, Mădălina, Eugenia Mareși, Adelina Stan, Song Young-un, and Shin Yong-seub. "STUDY OF GERMAN PLUM CULTIVARS UNDER THE PEDOCLIMATIC CONDITIONS FROM RIFG PITESTI-MĂRĂCINENI." Fruit Growing Research 38 (December 22, 2022): 32–39. http://dx.doi.org/10.33045/fgr.v38.2022.04.

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Given the importance of the plum culture in Romania and the fact that, year by year, the plum assortment is renewed with autochtonous and foreign cultivars, in this work we have proposed the study of 8 foreign cultivars resulting from the Germany breeding program ('Jojo', 'Haganta', 'Hanita', 'Topend plus', 'Topfive', 'Topfirst', 'Toptaste', 'Topgigant plus') considered very good from a quantitative and qualitative point of view in their country of origin. As a control 'Stanley' and 'Centenar' cvs. were used, widespread in the commercial orchards from Romania. The cultivars are located in a fi

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REPETSKAYA, Anna Igorevna, Irina Gennadievna SAVUSHKINA, Ekaterina Vasilievna GORODNYAYA, et al. "Prospects for the Development of Decorative Nursery in the Crimea." Journal of Environmental Management and Tourism 11, no. 3 (2020): 634. http://dx.doi.org/10.14505//jemt.11.3(43).17.

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Potential volume of planting material market for ornamental crops was calculated based on the analysis of master plans for the development of Crimean cities taking into account standards for planting trees and shrubs. Data were obtained on territorial belonging, purpose, production cycle, and range of peninsula nurseries. It was proposed to use plus trees growing in urban conditions as mother trees for production of planting material adapted to the urban ecological and climatic conditions of this area. We have previously proposed a basic recommended assortment to green the Piedmont zone of Cri

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Besschetnova, N. N., V. P. Besschetnov, and A. N. Gorelov. "Growth of Scots pine plus trees clones, selected by resin productivity in Nizhny Novgorod region." FORESTRY BULLETIN 25, no. 4 (2021): 5–14. http://dx.doi.org/10.18698/2542-1468-2021-4-5-14.

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The taxational indicators of clones of plus trees of Scots pine, selected by resin productivity, were studied in comparison with similar characteristics of plants, selected by linear parameters of the trunk. They are represented They are presented in the assortment of the forest seed plantation No. 10 in the Semenovsky forestry of the Nizhny Novgorod region, created in 1984 on a plot with the type of forest growing conditions — B2, and the type of forest — maynikovo-lingonberry pine. In the organization of the work, the principle of the only logical difference was observed, as well as the requ

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Hogmire, Henry W., Tim Winfield, Kate Collins, and Isabelle Myers. "Sevin XLR Plus Block Treatment, 1994." Arthropod Management Tests 20, no. 1 (1995): 16. http://dx.doi.org/10.1093/amt/20.1.16a.

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Abstract A treatment which included Sevin XLR PLUS, and a standard treatment, was each applied to a 1/4 acre block (five rows × five trees/row) of 14-yr-old trees on MM. 106 rootstock. Trees measured 19.5 ft in height and 19 ft in width and were planted at a spacing of 18 × 24 ft. Insecticides were applied as complete sprays to both sides of the tree with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates of application were 6 May (petal fall [PF]), 24 May (first cover [1C]), 8 Jun (second cover [2C]), 23 Jun (third cover [3C]), 7 Jul (f

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Engay-Gutierrez, Kathreena, Eraldwin Dimailig, and Jenny Yacon. "Plus and Mother Trees in Mt. Banahaw de Lucban, Quezon, Philippines." Journal of Environmental Science and Management 25, no. 2 (2022): 33–48. http://dx.doi.org/10.47125/jesam/2022_2/05.

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The selection of forest trees as planting materials in reforestation projects or plantation development could be based on the existing needs of the wood-based industry, and in support of the National Greening Program. It is anchored on natural adaptation to ensure high survival rates considering suitability to prevailing site conditions; purpose for planting; availability of planting stocks; and commercial value. Thus, selection and mapping of plus and mother trees at the northeastern slope of Mt. Banahaw de Lucban, Philippines were conducted to determine potential seed production areas as sou

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Alikhani, Saeid, Sandi Klavžar, Florian Lehner, and Samaneh Soltani. "Trees with distinguishing index equal distinguishing number plus one." Discussiones Mathematicae Graph Theory 40, no. 3 (2020): 875. http://dx.doi.org/10.7151/dmgt.2162.

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García-Valdecantos, JL, and G. Catalán. "Possible criteria for selection of Quercus suber plus trees." annales des sciences forestières 50, Supplement (1993): 448s—451s. http://dx.doi.org/10.1051/forest:19930755.

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Litovchenko, Daria A., Anna A. Popova, Konstantin A. Shestibratov, and Konstantin V. Krutovsky. "Climate Response and Radial Growth Dynamics of Pedunculate Oak (Quercus robur L.) Plus Trees and Their Half-Sib Progeny in Periods of Severe Droughts in the Forest-Steppe Zone of Eastern Europe." Plants 13, no. 22 (2024): 3213. http://dx.doi.org/10.3390/plants13223213.

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The dendrochronological parameters of 97 pedunculate oak (Quercus robur L.) trees including 20 plus trees (142-year-old on average) and four half-sib families for four of them were analyzed considering also specifically years of the most severe droughts that were identified using average monthly air temperature and precipitation data. The tree-ring width (TRW) was mostly affected by air temperature that had the largest cross-dating indices (CDI), up to 78% maximum. However, the 32-year Brückner–Egeson–Lockyer cycle (a climatic cycle of approximately 30–40 years that correlates with sunspot act

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Layne, Desmond R., and Eric J. Hitzler. "(310) Peach Orchard Systems Management Trial: The First Six Years." HortScience 40, no. 4 (2005): 1026A—1026. http://dx.doi.org/10.21273/hortsci.40.4.1026a.

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In 1999, a trial was established at the Clemson University Musser Fruit Research Farm to investigate the effects of training system/tree density, rootstock, and irrigation/fertilization on tree growth, productivity and profitability. The replicated trial comprised three training systems/tree densities (open center–332 trees/ha; quad V–664 trees/ha; and perpendicular V–996 trees/ha). The two rootstocks used were Lovell and Guardian. Three irrigation/fertilization treatments included: natural rainfall only plus granular program; supplemental irrigation plus granular; and supplemental irrigation

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Marini, Richard. "Oxamyl Is an Effective Apple Fruit Thinner when Used Alone or when Combined with Other Thinners." HortTechnology 7, no. 3 (1997): 253–58. http://dx.doi.org/10.21273/horttech.7.3.253.

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In five experiments with `Redchief Delicious' and one with `Braeburn', oxamyl (Vydate 2L) was used alone or combined with other chemicals to thin apples. The thinning response to oxamyl depended on dose. In most cases, oxamyl at 600 mg·L−1 and carbaryl at 900 mg·L−1 thinned trees similarly, but the combination of oxamyl plus carbaryl was no more effective than either chemical alone. The combination of oxamyl plus NAA (2.5 to 5 mL·L−1) was slightly more effective than either material alone. The thinning response to oxamyl and carbaryl was related to the concentration of superior oil added to th

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47

ROMAN, Andrea M., Irina M. MORAR, Alina M. TRUȚA, et al. "Trees, seeds and seedlings analyses in the process of obtaining a quality planting material for black locust (Robinia pseudoacacia L.)." Notulae Scientia Biologicae 12, no. 4 (2020): 940–58. http://dx.doi.org/10.15835/nsb12410867.

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Black locust (Robinia pseudoacacia L.) was among the first North-American tree species imported in Europe. In Romania, black locust has established itself as a forest tree appreciated for multiple uses. The objective of the hereby study was to identify a quality planting material at black locust using seeds from trees with superior traits from five stands geographically close, located in North-western of Romania. An empirical selection was done, thus trees with the most favourable traits were selected as plus trees. Among the averages of the main traits (tree height, diameter at breast height,

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Marquard, Robert D., and James W. Hanover. "Floral response of Piceaglauca to gibberellin A4/7, napthaleneacetic acid, root-pruning, and biennial treatment." Canadian Journal of Forest Research 15, no. 4 (1985): 743–46. http://dx.doi.org/10.1139/x85-124.

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The floral response of 6-year-old seedling white spruce (Piceaglauca (Moench) Voss.) was evaluated after treatment in 1981 with the gibberellin mixture of A4 and A7 (GA4/7), napthaleneacetic acid (NAA), and root-pruning. To evaluate the effectiveness of biennial treatment, trees treated in 1981 were again treated in 1983 and compared with a second group of trees treated only in 1983. Trees treated in 1981 with 500 mg•L−1 GA4/7 plus 25 mg•L−1 NAA and root-pruning averaged 42 female strobili per tree and control trees remained vegetative. Root-pruning significantly reduced terminal shoot growth

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Шейкина, О. В., та Е. М. Романов. "SSR-Аnalysis of Pinus sylvestris Plus Trees from Mari El Republic". Лесохозяйственная информация, № 2 (14 червня 2023): 91–101. http://dx.doi.org/10.24419/lhi.2304-3083.2023.2.07.

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Статья посвящена оценке генетического разнообразия генофонда плюсовых деревьев сосны обыкновенной с применением SSR-маркеров. Приведены данные об уровне генетического разнообразия и дифференциации выборок плюсовых деревьев, отобранных на свежих песчаных (А2), влажных песчаных (А3) и суглинистых почвах (С2 и С3). Всего у 71 плюсового дерева из Республики Марий Эл обнаружено 32 аллеля. Установлено, что частота встречаемости аллелей у локусов SPAG7.14, Psy157 и PtTX3107 достоверно различается у групп плюсовых деревьев, произрастающих на песчаных и суглинистых почвах. Это может указывать на различ

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Dorothy, Tchapda Tchatchoua, Hamidou Oumarou, Maloum Mariam, E. Carlson John, and Palou Madi Oumarou. "Influence of environmental conditions on Faidherbia albida Parklands in the Sudano Sahelian Zone of Cameroon." Journal of Wildlife and Biodiversity 7, no. 4 (2023): 101–16. https://doi.org/10.5281/zenodo.8286678.

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Natural populations or landraces contains a high level of genetic variation that can be used for the selection of <em>plus trees</em> in <em>Faidherbia albida</em> agroforestry parklands in the Sudano-Sahelian zone of Cameroon. With the high rate of deforestation and overpopulation in recent times, there is the danger of losing these naturally adapted landraces of trees. This study investigates the influence of environmental conditions (altitude, human activity, rainfall and soil types) on four (Kodex, Mambang, Dinao and Parkine) <em>Faidherbia albida</em> agroforestry parklands in Cameroon. A

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