搜索结果: 1-15 共查到“林木遗传育种学 growth”相关记录17条 . 查询时间(0.281 秒)
Early growth evaluation and biomass allocation difference between clones and families in Cupressus funebris
Cupressus funebris clones families biomass allocation
2023/6/2
Evaluation of growth differences between clones and families has rarely been studied in slow-growing Cupressus funebris species, and whether such growth differences are related to biomass allocation p...
Heritable variation in tree growth and needle vegetation indices of slash pine (Pinus elliottii) using unmanned aerial vehicles (UAVs)
Pinus elliottii Heritable variation UAVs
2023/6/2
Vegetation indices (VIs) are mainly associated with plant yield, and yield-related physiological traits can assist in breeding selection. Tree breeding programs require a rapid assessment of a large n...
Variability in growth and cadmium accumulation capacity among willow hybrids and their parents: implications for yield-based selection of Cd-efficient cultivars（图）
柳树 杂交子代 镉 积累能力
2023/6/2
上个世纪90年代，北美灌木柳育种计划在纽约州启动，经过30多年的杂交、选育以及在美国中、北部的区域试验，选育了一大批高产、高抗的灌木柳栽培品种，目前很多品种在美国已商品化生产。在北美纽约州、宾夕法尼亚州等地，灌木柳被广泛用于工业污染地、垃圾填埋场的植物修复、公路防风雪篱以及生物质能源生产。尽管国际上在柳树重金属污染修复方面做了大量研究，筛选出很多对重金属具有高积累、耐性以及转移的品种，但是重金属积...
Inheritance and Correlation Analysis of Pulpwood Properties, Wood Density, and Growth Traits of Slash Pine
Growth Traits Slash Pine Pulpwood Properties Wood Density
2023/6/5
Slash pine (Pinus elliottii) is the most important and a fast-growing material that is used for industrial timber and pulp production. A breeding program of slash pine that aims to improve wood proper...
Modelling individual tree diameter growth for Norway spruce in the Czech Republic using a generalized algebraic difference approach
base-age invariant approach Chapman-Richards function global parameters tree-specific parameters iterative nested regression National Forest Inventory
2017/6/26
Individual tree-based growth models precisely describe the growth of individual trees irrespective of stand complexity. These models are more useful than the stand-based growth models for effective ma...
Comparison of growth development of micropropagated and generatively reproduced wild cherry (Prunus avium (L.) L.) on the Polná demonstration plot (Czech Republic) up to the age of 15 years
forest trees vegetative propagation in vitro clone testing field trials
2016/6/3
Four clonal progenies of wild cherry obtained using an in vitro technique and control progeny of generative origin were tested on the Polná research plot in southeastern Bohemia. Growth characteristic...
Management of poppy (Papaver somniferum L.) stand height using growth regulators
chlormequat chloride ethephon metconazole difenoconazole paclobutrazol phytotoxicity lodging
2017/4/6
The possibility of reduce the length of poppy plants and their risk of lodging by applying selected plant growth regulators and effects on the plant and yield were studied in field experiments during ...
Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings
mini-plug seedlings growth traits survival mini-plug transplants forest restoration
2015/4/14
The objective of this study was to identify optimal growing conditions for the production of high-quality mini-plug seedlings of black locust (Robinia pseudoacacia [L.].). Two seed origins (Greek and ...
Thinning experiment in the spruce and beech mixed stands on the locality naturally dominated by beech ?growth, litter-fall and humus
thinning spruce beech
2015/3/16
In 1997, long-term thinning experiment V歟te?in Southern Bohemia was established in the young 19-year-old mixed beech and spruce stand. Three variants (0.10 ha each) were investigated: 1 ?control unthi...
Growth of wild cherry (Prunus avium L.) in a mixture with other species in a demonstration forest
stand forming species stand crown layer tree classes
2015/3/16
Wild cherry is one of the noble hardwood species that increase the biodiversity of our forests and at the same time it could increase the income for forest owners. The preconditions for achieving thes...
Spontaneous hybrids within the genus Abies − growth and development
genus Abies hybridization
2015/3/6
Spontaneous hybrids within the genus Abies are considered to be better in growth and vitality in comparison with Abies alba and parental species. Three plantations with this material were established ...
Utilisation of mathematical models and growth simulators for creating forest management plans and planning the tending felling
mathematical modelling of development of mensurational variables spruce growth simulators SILVA 2.2 tending felling
2015/2/2
The paper describes modelling of forest development and its utilisation for forest management planning, specifically modelling of growth mensurational variables of the two main commercial species – sp...
Effect of different plant growth regulators on callus induction in Catalpa bungei
Catalpa bungei tissue culture plant growth regulators callus
2011/1/12
The present study describes a reliable method for callus induction of Catalpa bungei plant. Calli were in vitro initiated from leaves, stem and petiole segments using DKW basal media. The effect of co...
Migration and Population Growth of the Pine Wood Nematode (Bursaphelenchus xylophilus) Related to the Symptom Development in the Seedlings of Japanese Black Pine (Pinus thunbergii) Families Selected as Resistant to Pine Wilt
breeding Bursaphelenchus xylophilus pine wilt resin canal resistance
2009/8/27
To obtain the pine trees with high resistance to the pine wilt from susceptible species, the criteria for selective breeding should be made based on the inhibition factors of symptom development. Migr...
Influences of Mast Seeding on Tree Growth Dynamics of Fagus crenata and Fagus japonica in Central Honshu,Japan
Fagus crenata Fagus japonica mast seeding leaf litterfall basal area increment
2009/8/24
We investigated influences of mast seeding on tree growth, in relation to beech tree species Fagus crenata and F.japonica dynamics of leaf litterfall. The study objective was to clarify any relations ...