Results 121 to 130 of about 178,267 (356)

Genome-wide genotyping data renew knowledge on genetic diversity of a worldwide alfalfa collection and give insights on genetic control of phenology traits [PDF]

open access: gold, 2023
Marie Pégard   +8 more
openalex   +1 more source

Aster tongrenensis (Asteraceae), a remarkable new species from Guizhou, China

open access: yesNordic Journal of Botany, EarlyView.
Aster tongrenensis (Asteraceae), a remarkable new species from Guizhou, China, is here described, illustrated and compared with related taxa based on integrated evidence from morphology, micromorphology and molecular phylogeny. Morphological and micromorphological observations indicate that A. tongrenensis is most similar to A.
Zhi‐Xin Quan   +3 more
wiley   +1 more source

Portulaca eggliana (Portulacaceae), a new species from the Brazilian Amazonian savannas

open access: yesNordic Journal of Botany, EarlyView.
A new species of Portulacaceae from the Amazonian savannas of northern Brazil is herein described and illustrated. Portulaca eggliana is morphologically related to P. umbraticola, but differs in the number of involucral leaves, sepal morphology, bracteole shape, and seed surface.
José Roberto Ferraz   +4 more
wiley   +1 more source

An Object-Based Paddy Rice Classification Using Multi-Spectral Data and Crop Phenology in Assam, Northeast India

open access: yesRemote Sensing, 2016
Rice is the staple food for half of the world’s population. Therefore, accurate information of rice area is vital for food security. This study investigates the effect of phenology for rice mapping using an object-based image analysis (OBIA) approach ...
Mrinal Singha, Bingfang Wu, Miao Zhang
doaj   +1 more source

Green-Down Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

A new species of Drimia Jacq. ex Willd. (Asparagaceae) from Nellai wildlife sanctuary, Western Ghats, India

open access: yesNordic Journal of Botany, EarlyView.
The new species Drimia courtallensis from the Nellai Wildlife Sanctuary of Tamil Nadu, India is described and illustrated. It is similar to Drimia razii,in its necked bulb, hysteranthous nature, lax inflorescence and diurnal flowers on moderately short pedicels but it can be distinguished by its broader linear‐lanceolate leaves (230–420 × 6–15 mm ...
Arumugam Senniappan   +3 more
wiley   +1 more source

Phenological response to climatic change depends on spring warming velocity

open access: yesCommunications Earth & Environment
Climatic change is dramatically altering phenology but generalities regarding tempo and mode of response remain limited. Here we present a general model framework incorporating spring temperature, velocity of spring warming, and species’ thermal ...
Robert Guralnick   +3 more
doaj   +1 more source

Soil respiration in a northeastern US temperate forest: a 22‐year synthesis [PDF]

open access: yes, 2013
To better understand how forest management, phenology, vegetation type, and actual and simulated climatic change affect seasonal and inter‐annual variations in soil respiration (Rs), we analyzed more than 100,000 individual measurements of soil ...
Bowden, R. D.   +20 more
core   +1 more source

Cubesat Constellations Provide Enhanced Crop Phenology And Digital Agricultural Insights Using Daily Leaf Area Index Retrievals. [PDF]

open access: green, 2021
Kasper Johansen   +4 more
openalex   +1 more source

Home - About - Disclaimer - Privacy