نتایج جستجو برای: forest to orchard
تعداد نتایج: 10655621 فیلتر نتایج به سال:
Brown marmorated stink bug, Halyomorpha halys (Stål), injury to late-season apple cultivars was measured at harvest in 2011 and 2012 in commercial orchards in four mid-Atlantic states. In each orchard block, a border zone (adjacent to woods), an interior zone (near orchard center), and an intermediate zone (between border and interior zones) comprised 1-3 tree rows per zone, depending on block ...
Northern red oak is a high-value hardwood used for lumber, furniture and veneer. Intensively managed northern red oak seed orchards are required to obtain genetic gain for trait improvement. Data from conifer seed orchards and natural and managed stands of hardwood trees have shed light on the distance over which pollen can move, and underscore the need for managerial attention to seed orchard ...
1 Metrica Corporation 1012 Hercules, Houston TX 77058 U.S.A. 2 Rehabilitation Engineering Program Depts. of Physical Medicine and Rehabilitation and Biomedical Engineering University of Michigan, Ann Arbor, MI 48109 U.S.A. 3 Amerigon Corporation 5462 Irwindale Avenue, Irwindale, CA 91706 U.S.A. 4 PhaseMedix Consulting 24380 Orchard Lake Road, Suite 114 Farmington Hills, MI 48336 U.S.A. 5 Depart...
Polyporoid Phellinus fungi are ubiquitously present in the environment and play an important role in shaping forest ecology. Several species of Phellinus are notorious pathogens that can affect a broad variety of tree species in forest, plantation, orchard and urban habitats; however, current detection methods are overly complex and lack the sensitivity required to identify these pathogens at t...
`Kent' mango (Mangifera indica L.) ̄owers were sampled in an orchard in the coastal plain of Israel during the 1997 ̄owering season. Effective pollination rate was determined at two stages of the fertilization process: (a) pollen germination on the stigma; (b) pollen-tube penetration into the ovule. Pollination rates were negligible during the ®rst part of the ̄owering season (31 March to 18 Ap...
Abstract To avoid the surrounding pollination, seed orchards of Finnish plus trees have been established in Ukraine, i.e., far from their natural distribution. However, it is unknown whether pollination site affects frost hardiness (FH) progenies and thus use forest regeneration Finland. Using whole-plant freezing tests, we examined FH tree orchard Finland with three lots seeds each orchard, tw...
In this study we focus on the invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), which has a strong dispersal capacity and has had a significant impact on several cropping systems, including peach (Prunus persica (L.)). Management of H. halys has relied on intensive insecticide use, and thus a better understanding of its dispersal behavior may assist in dev...
Although whiteflies Tetraleurodes perseae (Nakahara) (Hemiptera: Aleyrodidae) are considered a secondary pest of avocado crops, their presence and the damages that they cause can decrease crop vigor and affect production. The objective of the present work was to determine the population fluctuation and altitudinal distribution of the T. perseae Nakahara whitefly in avocado trees, as well as to ...
Teacher preparation is a highly contested area in England with a range of epistemological approaches potentially being promoted through the availability of a range of preparation routes. The dominant model of teacher preparation used by programmes led by university education departments is that of developing reflective practitioners. However, other models, including those coined as ‘craftworker...
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