Results 31 to 40 of about 49,736 (163)

Semi-Supervised NMF-CNN for Sound Event Detection

open access: yesIEEE Access, 2021
The lack of strongly labeled data can limit the potential of a Sound Event Detection (SED) system trained using deep learning approaches. To address this issue, this paper proposes a novel method to approximate strong labels for the weakly labeled data ...
Teck Kai Chan, Cheng Siong Chin, Ye Li
doaj   +1 more source

Quick Histochemical Staining Methods to Detect Cell Death in Xylem Elements of Plant Tissues

open access: yes, 2017
Histochemical assays of xylem cell death cannot take advantage of the conventional methods for detection of cell death, such as staining with propidium iodide or trypan/Evans blue or the TUNEL staining. This chapter presents two alternative histochemical
Escamez, Sacha,   +5 more
core   +1 more source

Drought-Conditioning of Quaking Aspen (Populus tremuloides Michx.) Seedlings During Nursery Production Modifies Seedling Anatomy and Physiology

open access: yesFrontiers in Plant Science, 2020
In the western US, quaking aspen (Populus tremuloides Michx.) regenerates primarily by root suckers after disturbances such as low to moderate severity fires. Planting aspen seedlings grown from seed may provide a mechanism to improve restoration success
Joshua L. Sloan   +3 more
doaj   +1 more source

Progressive Decline in Xylem Inflow into Developing Plums

open access: yesHortScience, 2021
Recent evidence suggests xylem functionality may decline in developing European plums. Loss of xylem function may have negative consequences for fruit quality.
Bishnu P. Khanal   +2 more
doaj   +1 more source

Evidence of phloem boron transport in response to interrupted boron supply in white lupin (Lupinus albus L. cv. Kiev Mutant) at the reproductive stage

open access: yes, 2008
The present study investigates whether previously acquired boron (B) in mature leaves in white lupin can be retranslocated into the rapidly growing young reproductive organs, in response to short-term (3 d) interrupted B supply.
Huang, Longbin   +5 more
core   +1 more source

Changes to the proteome and targeted metabolites of xylem sap in Brassica oleracea in response to salt stress [PDF]

open access: yes, 2011
Root-to-shoot signalling via xylem sap is an important mechanism by which plants respond to stress. This signalling could be mediated by alteration in the concentrations of inorganic and/or organic molecules.
P. HEDDEN   +13 more
core   +1 more source

Accounting for sap flow from different parts of the root system improves the prediction of xylem ABA concentration in plants grown with heterogeneous soil moisture. [PDF]

open access: yes, 2008
When soil moisture is heterogeneous, sap flow from, and ABA status of, different parts of the root system impact on leaf xylem ABA concentration ([X-ABA]leaf). The robustness of a model for predicting [X-ABA]leaf was assessed.
Egea, Gregorio   +2 more
core  

Chemical Imaging of Xylem by Raman Microspectroscopy

open access: yes, 2017
Raman microspectroscopic techniques provide highly detailed chemical information about xylem tissue at submicron spatial resolution. The techniques are generally sensitive and they provide a powerful, yet inexpensive way to probe the chemical composition
Gorzsás, András,, András Gorzsás
core   +1 more source

Low Temperature Tolerance of Peach Flower Buds and Shoot Tissues Is Differentially Influenced by Freezing and High Temperature Exposure

open access: yesHortScience
In northern temperate zones, peach trees are vulnerable to cold temperature injury in the fall, particularly as climate change prolongs warm weather in the fall and potentially delays the onset of cold acclimation.
Renae E. Moran, Peyton Ginakes
doaj   +1 more source

Genome-Wide Identification of Long Non-Coding RNAs and Their Potential Functions in Poplar Growth and Phenylalanine Biosynthesis

open access: yesFrontiers in Genetics, 2021
Poplar is an important bioenergy tree species. lncRNAs play important roles in various biological regulatory processes, and their expression pattern is more tissue-specific than mRNAs. In this study, P. deltoides “Danhong” (Pd) and P. simonii “Tongliao1”
Lei Zhang   +6 more
doaj   +1 more source

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