Results 81 to 90 of about 1,474,943 (199)

Constitutive and inducible oleoresin defenses share genetic architectures and mechanisms in Pinus taeda

open access: yesNew Phytologist, Volume 250, Issue 5, Page 2966-2987, June 2026.
Summary The oleoresin defense system of loblolly pine (Pinus taeda) protects trees from insects and pathogens and is an important source of renewable biofuels and chemicals, but the genetic basis of oleoresin production is poorly understood. We characterized the genetic architecture of oleoresin flow, resin canal number, stem wood terpene content, and ...
Mallory M. Morgan   +13 more
wiley   +1 more source

Frost Tolerance Increases With Plant Height Among Co‐Occurring Alpine Species in the Central Tibetan Plateau

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Frost tolerance (LT50) varies greatly among species coexisting in an alpine community. Taller plants are more frost‐tolerant, reversing the expected intra‐community pattern. Evidence for a frost survival trade‐off: avoidance in short plants vs. tolerance in tall plants.
Ji Suonan   +6 more
wiley   +1 more source

Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar‐Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool‐Temperate Larch Forest in Japan

open access: yesEcological Research, Volume 41, Issue 3, May 2026.
Solar‐induced chlorophyll fluorescence (SIF) and gross primary productivity decline at midday during a short heatwave in a tower site of a larch forest. High atmospheric vapor pressure deficit significantly reduced the photochemical reflectance index (PRI), light‐use efficiency (LUE), and canopy fluorescence emission efficiency (εF).
Tomoki Morozumi   +4 more
wiley   +1 more source

Reduced snow cover at the alpine treeline: resistance and recovery of saplings

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1492-1509, May 2026.
Summary At high elevations, tree saplings and shrubs are usually protected by mid‐winter snow cover, although climate change is expected to extend the snow‐free (SF) period. Exposure to winter drought, freeze–thaw events and freezing temperatures will therefore increase, inducing damages to the hydraulic system and to living cells, resulting in reduced
Katline Charra‐Vaskou   +4 more
wiley   +1 more source

Standardized Protocols for Soil Fauna Extraction and a Call for Cross‐Lab Implementation

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We present harmonized methodologies, assembled by an international group of experts, for extracting soil‐ and litter‐inhabiting nematodes, enchytraeids, microarthropods, and larger invertebrates. The protocols are illustrated with images and videos, and include advice for overcoming the most frequent issues (’expert tips’) for increasing extraction ...
Michala Tůmová   +25 more
wiley   +1 more source

Feasibility and Efficiency of Smart Thinning Operation: A Novel Method of Tree Designation and Localization

open access: yesForest Science and Technology
Conventional thinning operations rely heavily on manual decision-making and field-flagging conducted by an experienced forest manager, which is both labor-intensive and prone to human error. The shortage of skilled forestry workers further highlights the
Hyun-Min Cho   +2 more
doaj   +1 more source

Altitudinal Variation of Flavonoid Content in the Leaves of and the Needles of on Mt. Fuji

open access: yesNatural Product Communications, 2015
Ultraviolet-B radiation is harmful to plants, and its intensity increases at altitude. So plants growing at high altitude possess UV protection systems. Flavonoid is known as a major UV protectant because it absorbs UV radiation and scavenges UV-induced ...
Yoshinori Murai   +3 more
doaj   +1 more source

Moisture state and bending properties of Japanese larch (Larix kaempferi) boxed-heart timbers dried by high-temperature kiln-drying and stored under different conditions

open access: yesDrewno
The high-temperature setting (HTS) method is a kiln-drying method in which boxed-heart (BH) timbers are rapidly dried at high temperatures and low relative humidity.
Yoshihiro Hosoo   +3 more
doaj   +1 more source

Pest categorisation of Cephalcia lariciphila

open access: yesEFSA Journal, 2017
The Panel on Plant health performed a pest categorisation of the larch web‐spinning sawfly Cephalcia lariciphila (Hymenoptera: Pamphiliidae) for the EU. The insect has been reported in 11 EU Member States (MSs).
EFSA Panel on Plant Health (PLH)   +24 more
doaj   +1 more source

Salt Stress Reduced the Seedling Growth of Two Larch Species Under Elevated Ozone

open access: yesFrontiers in Forests and Global Change, 2019
The effect of elevated ozone (eO3) and soil salinization with alkaline salts in northeastern (NE) China is a serious concern affecting the success of the national replanting project.
Tetsuto Sugai   +7 more
doaj   +1 more source

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