Results 1 to 10 of about 24,051,771 (331)

Study on Floral Syndrome and Breeding System of an Endangered Species Rhododendron nymphaeoides [PDF]

open access: yesEcology and Evolution
Rhododendron nymphaeoides is a plant belonging to the genus Rhododendron (Rhododendron Linn.) and the subsection Fortunea. Although this species is clearly listed as endangered (with an endangered status of EN) by the International Union for Conservation
Jun Luo   +9 more
doaj   +2 more sources

The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers [PDF]

open access: yesActa Agriculturae Serbica, 2023
The aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there were
Stepić Jelena   +6 more
doaj   +1 more source

Benefits of Insect Pollination in Brassicaceae: A Meta-Analysis of Self-Compatible and Self-Incompatible Crop Species

open access: yesAgriculture, 2022
This paper reviewed the effects of insect pollination on the yield parameters of plants from the family Brassicaceae presenting different breeding systems.
Francisco Rubén Badenes-Pérez
doaj   +1 more source

The pollination of Habenaria rhodocheila (Orchidaceae) in South China: When butterflies take sides

open access: yesEcology and Evolution, 2021
Habenaria is one of the largest terrestrial genera in the family Orchidaceae. Most field studies on Habenaria species with greenish–white and nocturnal scented flowers are pollinated by nocturnal hawkmoths and settling moths. However, H.
Xing‐Hui Chen   +8 more
doaj   +1 more source

Reproductive Biology of the Two Varieties of Anacyclus pyrethrum L.—Anacyclus pyrethrum var. pyrethrum (L.) Link and Anacyclus pyrethrum var. depressus (Ball.) Maire—An Endemic Endangered Species

open access: yesPlants, 2022
The reproductive system is essential for the structuring and transmission of genetic diversity. Understanding the reproductive biology of threatened endemic species is considered to be a crucial element for the implementation of effective conservation ...
Fatima Zahra Jawhari   +9 more
doaj   +1 more source

Self-Incompatibility of Camellia weiningensis Y.K. Li.

open access: yesHorticulturae, 2022
This study compared the pollen tube growth, fruit setting, and seed setting characteristics of Camellia weiningensis Y.K. Li. under self- and cross-pollination to identify its self-incompatibility characteristics and types. C.
Chao Gao   +4 more
doaj   +1 more source

Trade-offs between personal immunity and reproduction in the burying beetle, N. vespilloides [PDF]

open access: yes, 2014
We know that parental investment and immune investment are costly processes, but it is unclear which trait will be prioritised when both may be required.
Cotter, Sheena C.   +3 more
core   +2 more sources

Assessment of Genetic Diversity in Seed Plants Based on a Uniform π Criterion

open access: yesMolecules, 2014
Despite substantial advances in genotyping techniques and massively accumulated data over the past half century, a uniform measurement of neutral genetic diversity derived by different molecular markers across a wide taxonomical range has not yet been ...
Bin Ai, Ming Kang, Hongwen Huang
doaj   +1 more source

Dispersal costs set the scene for helping in an atypical avian cooperative breeder [PDF]

open access: yes, 2001
The ecological constraints hypothesis is suggested to explain the evolution of cooperative breeding in birds. This hypothesis predicts that the scene for cooperative breeding is set when ecological factors constrain offspring from dispersal.
Russell, A.F.
core   +2 more sources

A New Approach to LCA Evaluation of Lamb Meat Production in Two Different Breeding Systems in Northern Italy

open access: yesFrontiers in Veterinary Science, 2020
Lamb meat production provides vital landscape-management and ecosystem services; however, ruminant farming produces a considerable share of the world's greenhouse gas emissions.
Andreas Geß   +6 more
doaj   +1 more source

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