Results 81 to 90 of about 450,398 (365)

The life history of the silverside, Menidia menidia (Linnaeus) [PDF]

open access: yes, 1950
This paper is based on an attempt to assemble the existing knowledge of the silverside, Menidia menidia, and to contribute to what is known about the life history of this species.
Bayliff Jr., William H.
core  

Robotic Needle Steering for Percutaneous Interventions: Sensing, Modeling, and Control

open access: yesAdvanced Intelligent Systems, EarlyView.
This review examines recent advances in robotic needle steering for percutaneous interventions, highlighting closed‐loop sensing, physics‐informed tissue‐needle interaction modeling, and real‐time trajectory planning and control. It synthesizes innovations in deep learning, fiber‐optic feedback, and adaptive control strategies, and outlines emerging ...
Fangjiao Zhao   +5 more
wiley   +1 more source

Comparative Winterhardiness of Cultivated and Native Alaskan Grasses, and Forage Yield and Quality as Influenced by Harvest Schedules and Frequencies, and Rates of Applied Nitrogen [PDF]

open access: yes, 1994
Objectives of this investigation were to compare certain traditional forage grasses with several native Alaskan grass species for forage yield, forage quality as measured by percent crude protein and digestibility (in vitro dry-matter disappearance ...
Klebesadel, Leslie J.
core  

Grass functional traits reflect the long history of fire and grazers in the savannas of Texas

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Understanding relationships among grass traits, fire, and herbivores may help improve conservation strategies for savannas that are threatened by novel disturbance regimes. Emerging theory, developed in Africa, emphasizes that functional traits of savanna grasses reflect the distinct ways that fire and grazers consume biomass ...
Ashish N. Nerlekar   +2 more
wiley   +1 more source

Alfalfa seed processing on different equipment [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2011
For the establishment and exploitation of alfalfa, the seed must be of high purity, germination, and high genetic value. Most of these requirements is realized through processing or removal of foreign matter and seeds of lower quality.
Đokić Dragoslav   +6 more
doaj  

Lotus tenuis x L. corniculatus interspecific hybridization as a means to breed bloat-safe pastures and gain insight into the genetic control of proanthocyanidin biosynthesis in legumes [PDF]

open access: yes, 2014
Background: Proanthocyanidins (PAs) are secondary metabolites that strongly affect plant quality traits. The concentration and the structure of these metabolites influence the palatability and nutritional value of forage legumes. Hence, modulating PAs in
Babuin, María Florencia   +8 more
core   +2 more sources

Climate‐change‐driven shifts in C3 and C4 grass distributions and leaf traits could lead to changes in community‐level flammability

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change poses challenges to grasslands, including those of the North American Great Plains Region, where shifts in species distributions and fire dynamics are expected. Our present analysis focuses on remaining grasslands within this largely developed and agricultural region. The differential responses of C4 and C3 grass species
Sarah L. Raubenheimer   +3 more
wiley   +1 more source

Nutritive value responses to biological products in alfalfa forage (Medicago sativa L.) [PDF]

open access: yesPesticidi i Fitomedicina, 2018
The effects of the biological insecticides Madex and Agricolle, applied alone or in combination with the biological fertilizers Lithovit and Nagro, on chemical composition and enzyme in vitro digestibility, as well as energy feeding value of alfalfa dry ...
Mitkova-Nikolova Ivelina   +2 more
doaj  

Genotyping-By-Sequencing Reveals Population Structure and Genetic Diversity of a Buffelgrass (Cenchrus ciliaris L.) Collection

open access: yesDiversity, 2020
Buffelgrass (Cenchrus ciliaris L.) is an important forage grass widely grown across the world with many good characteristics including high biomass yield, drought tolerance, and adaptability to a wide range of soil conditions and agro-ecologies.
Alemayehu Teressa Negawo   +7 more
doaj   +1 more source

Timothy in Alaska: Characteristics, History, Adaptation, and Management [PDF]

open access: yes, 1997
This report (a) summarizes the characteristics of timothy (Phleum pratense L.) as a forage species, (b) reviews briefly the history of its use in the U.S., and the history of timothy evaluations and culture in Alaska, (c) compares winterhardiness of ...
Klebesadel, Leslie J.
core  

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