搜索结果: 1-15 共查到“defoliation”相关记录26条 . 查询时间(0.125 秒)
The aim of this article is to present a concept of using airborne laser scanning (LIDAR), with one scan only, to map defoliation as a forest health variable. The idea is to apply two independent algor...
Monitoring of defoliation in forest stands of the Czech Republic and its comparison with results of defoliation monitoring in other European countries
International Cooperative Programme on Assessment and Monitoring of Air Pollution Effect on Forests (ICP Forests) defoliation monitoring forest stands forest species air pollution international comparison
2015/4/14
As a part of International Cooperative Programme on Assessment and Monitoring of Air Pollution Effect on Forests (ICP Forests), defoliation of forest stands has been assessed in the Czech Republic sin...
Short-t erm responses of a Stipa grandis/Leymus chinensis community to frequent defoliation in the semi-arid grasslands of Inner Mongolia, China
Grassland degradation Semi-arid Inner Mongolia Defoliation Productivity
2015/2/4
Grassland degradation due to over-grazing causes severe ecological and economical problems in the semi-arid grasslands of Inner Mongolia, PR China. The development of sustainable management systems is...
Logistic regression approach to the prediction of tree defoliation caused by sawflies (Hymenoptera: Symphyta)
Cephalcia lariciphila soil samples Tomostethus nigritus yellow sticky boards tree defoliation logistic regression
2015/2/2
A relationship between the abundance of phytophagous insects assessed from soil samples (in the case of Cephalcia lariciphila) or yellow sticky boards (in the case of T. nigritus) and percentage of de...
Experimental defoliation affects male but not female reproductive performance of the tropical monoecious plant Croton suberosus (Euphorbiaceae)
reproductive performance Experimental defoliation affects
2015/11/13
Background and Aims Monoecious plants have the capacity to allocate resources separately to male and female
functions more easily than hermaphrodites. This can be advantageous against environmental s...
Influence of past forestry practices on western spruce budworm defoliation and associated impacts in southern British Columbia
impact Choristoneura occidentalis Pseudotsuga menziesii stand structure understorey mortality
2010/8/31
The western spruce budworm, Choristoneura occidentalis Freeman, is a native defoliator of interior Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) forests in British Columbia. Repeated budworm defo...
Effect of stage and intensity of defoliation on the performance of vegetable cowpea (Vigna unguiculata (L.) Walp)
Defoliation intensity vegetable cowpea vegetative characters
2011/1/12
Field experiments were conducted in 2006 and 2007 on the experimental farm of the Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria to determine the effect of stage and inten...
Effect of Defoliation and Fruit Thinning on Fruit Quality of ‘Crimson Seedless’ Grape
‘Crimson Seedless’ grape Vitis vinifera defoliation fruit thinning fruit quality
2010/11/15
‘Crimson Seedless’ vines were treated with 5 defoliation managements: (1) leaf basal removal
(LBR), (2) leaf basal removal + hedging (LBR+H), (3) leaf basal removal + sterile shoot removal (SSR+LBR),...
CROWN DEFOLIATION OF PEDUNCULATE OAK (Quercus robur L.) ON PERMANENT RESEARCH PLOTS IN THE PERIOD FROM 1995-2000
forest pedunculate oak Quercus robur L. forest decline oak decline permanent research plot
2009/11/26
Permanent research plotting a crown defoliation survey on pedunculate oak was performed from 1995-2000 every August and included 192 grown trees in every year. On average from 1995 to 2000 conditions ...
Effect of Water Supply and Defoliation on Photosynthesis, Transpiration and Yield of Soybean
Defoliation Glycine max Leaf water potential Photosynthesis Stomatal conductance
2009/8/4
While increasing leaf area increases CO2-fixing ability of plants, it also increases transpiration and may cause water deficit within a plant. This study was conducted in order to analyze the combined...
Effects of Defoliation on the Incidence of Blossom-End Rot in Tomato Fruit (Lycopersicon esculentum Mill.)
Incidence Blossom-End Rot Tomato Fruit low BER cultivars
2009/7/13
We removed 50 % of the leaflets from tomato plants (Lycopersicon esculentum Mill.), which reduced whole plant transpiration and xylem sap, to investigate defoliation effects on the incidence of blosso...
Effects of Defoliation on Lateral Shoot Yield and Calcium Contents in Turnip Rape
water-soluble calcium
2009/7/9
To produce turnip rape (Brassica napus L.) with high concentrations of total calcium (Ca) and water-soluble Ca, we investigated the effect of defoliation on the form and levels of Ca (water-, 1N-NaCl-...
Freezing Tolerance, Starch Content and Growth after Replanting of 1-year-old Apple Nursery Trees on Dwarfing Rootstock Affected by Hand-Defoliation Date before Digging
carbohydrate freezing injury leaf fall
2009/7/8
Shinano-sweet’ apple nursery trees (Malus domestica Borkh.), that were grafted on Pajam 1 rootstocks in February 2004, were hand-defoliated on 15 October, 14 November, or 3 December 2004, to investiga...
Effects of Girdling, Defoliation and Flooding Treatments on Fruit Softening before and after Harvest in ‘Saijo’ Persimmon (Diospyros kaki Thunb.)
black spots ethylene fruit softening tannin
2009/7/8
The mechanism of enhanced fruit softening on the tree following natural disaster was investigated in ‘Saijo’ persimmon (Diospyros kaki Thunb.) by girdling, defoliation and flooding treatments. The hig...
Inhibitory Effects of Pinching and Defoliation against Current Shoots on Flower Bud Formation in Japanese Pear
axillary bud disbudding primary scaffold branch secondary scaffold branch
2009/7/7
We investigated inhibitory effects of the formation of axillary flower buds by pinching and defoliation of current shoots on four different cultivars of Japanese pear (Pyrus pyrifolia (Burm. f.) Nakai...