Results 31 to 40 of about 471,634 (160)

Evaluation of the allelopathic potential of water-soluble compounds of barley (Hordeum vulgare L. subsp.vulgare) and great brome (Bromus diandrus Roth.) using a modified bioassay

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2016
Description of the subject. The present study focuses on the description of the allelopathic interactions between wild and crop species that may occur in a given ecosystem. Objectives.
Bouhaouel, I.   +5 more
doaj  

RNA biology takes root in plant systems

open access: yesPlant Direct, 2022
Advances in RNA biology such as RNAi, CRISPR, and the first mRNA vaccine represent the enormous potential of RNA research to address current problems.
David Yu   +4 more
doaj   +1 more source

Effect of some mineral nutrients in growth and some physiological variables in barley plant [PDF]

open access: yesمجلة التربية والعلم, 2007
Pot experiment was conducted in the wiry house to study the effect of treated soil with boric acid ,magnesium sulphate and calcium chloride with concentrations of (0.1 %,0.2%,0.3%) Kg soil on growth of barley cultivars ( 402) by its effect on shoot and ...
Faeza Mahmood   +2 more
doaj   +1 more source

Non-Gatherable Triples for Non-Affine Root Systems

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
This paper contains a complete description of minimal non-gatherable triangle triples in the lambda-sequences for the classical root systems, $F_4$ and $E_6$. Such sequences are associated with reduced decompositions (words) in affine and non-affine Weyl
Ivan Cherednik, Keith Schneider
doaj   +1 more source

Decentralised sweetpotato (Ipomoea batatas) vine multiplication in Lake Zone, Tanzania: Five years later

open access: yesOpen Agriculture, 2020
Farmer-based seed multiplication is widely promoted by development practitioners, but there is limited understanding of the individual or collective motivations of farmers to engage or disengage in specialised seed production. The objective of this study
McEwan Margaret A.   +6 more
doaj   +1 more source

Assessment of Weeds of Cassava and Farmers’ Management Practices in Nigeria

open access: yesTropicultura, 2019
Competition from weeds is an obstacle to profitable cassava production. Knowledge of weed species negatively affecting productivity is essential for effective management.
F. Ekeleme   +12 more
doaj   +1 more source

Trade-offs among yield, water productivity, water footprint, and economic benefits for wheat production under conservation tillage: A long-term field experiment approach

open access: yesAgricultural Water Management
Water footprint (WF) is a water sustainable management indicator that quantifies the virtual water use in crop production. Water productivity (WP) and WF were examined under different tillage practices for wheat (Triticumaestivum L.) in the semiarid ...
Linlin Wang   +6 more
doaj   +1 more source

Iterative image segmentation of plant roots for high-throughput phenotyping

open access: yesScientific Reports, 2022
Accurate segmentation of root system architecture (RSA) from 2D images is an important step in studying phenotypic traits of root systems. Various approaches to image segmentation exist but many of them are not well suited to the thin and reticulated ...
Kyle Seidenthal   +4 more
doaj   +1 more source

Computed Tomography Evaluation of Canal Transportation and Volumetric Changes in Root Canal Dentin of Curved Canals Using Mtwo, ProTaper and ProTaper Next Rotary System-An In-vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Complete cleaning and shaping of root canal system is of paramount importance to achieve a successful root canal treatment. There are various rotary Ni-Ti systems available in the market to achieve mechanical goal of root canal ...
Mayuri Biccodu Shivashankar   +3 more
doaj   +1 more source

Imaging tree root systems using ground penetrating radar (GPR) data in Brazil

open access: yesFrontiers in Earth Science
Trees sequester carbon dioxide from the atmosphere through photosynthesis, storing it in branches, stems, and roots, where the belowground carbon fraction, approximately ¼ of the total amount, exhibits significant interspecies root biomass variability ...
Amanda Almeida Rocha   +6 more
doaj   +1 more source

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