Results 21 to 30 of about 948,228 (268)

Living in the shadows: Gastrodia orchids lack functional leaves and open flowers

open access: yesPlants, People, Planet, 2022
Non‐photosynthetic plants dependent on fungi have long fascinated botanists and mycologists. The genus Gastrodia (Orchidaceae) contains more than 100 achlorophyllous species, including some species recently discovered in Japan and Taiwan which produce ...
Kenji Suetsugu
doaj   +1 more source

Evolution of Autonomous Selfing in Marginal Habitats: Spatiotemporal Variation in the Floral Traits of the Distylous Primula wannanensis

open access: yesFrontiers in Plant Science, 2021
Outcrossing plant species are more likely to exhibit autonomous selfing in marginal habitats to ensure reproduction under conditions of limited pollinator and/or mate availability.
Wei Zhang   +8 more
doaj   +1 more source

Corolla Abscission Triggered by Nectar Robbers Positively Affects Reproduction by Enhancing Self-Pollination in Symphytum officinale (Boraginaceae)

open access: yesBiology, 2021
Nectar robbers, which affect plant fitness (directly or indirectly) in different degrees and in different ways, potentially constitute a significant part of mutualistic relationships.
Qin-Zheng Hou   +6 more
doaj   +1 more source

Propensity for selfing varies within a population of hermaphroditic snails: coexistence of selfers, outcrossers and mixed-mating individuals

open access: yesRoyal Society Open Science, 2023
To understand mating-system evolution in self-compatible hermaphrodites, variation in selfing rates is highly relevant. Empirical studies are rarely designed to capture variation between individuals, instead often comparing species and populations.
Anja Felmy   +2 more
doaj   +1 more source

The Effectiveness of Counseling Through Vasectomy Module in North Kolaka, Indonesia [PDF]

open access: yes, 2017
The main problem faced nowadays is the low participation of men in terms of implementation of the Family Planning Program. The figures for family planning in Indonesia only demonstrate a high rate on contraception use in women not in men. The Strategy to
Askrening, A. (Askrening)   +1 more
core   +2 more sources

Is selfing a reproductive assurance promoting polyploid establishment? Reduced fitness, leaky self-incompatibility and lower inbreeding depression in neotetraploids.

open access: yesAmerican-Eurasian journal of botany, 2020
PREMISE Newly formed polyploids face significant obstacles to persistence and population establishment because of fitness costs of intercytotype mating.
Catarina Siopa   +4 more
semanticscholar   +1 more source

A gender synchronized family planning intervention for married couples in rural India: study protocol for the CHARM2 cluster randomized controlled trial evaluation. [PDF]

open access: yes, 2019
BackgroundPrior research from India demonstrates a need for family planning counseling that engages both women and men, offers complete family planning method mix, and focuses on gender equity and reduces marital sexual violence (MSV) to promote ...
Averbach, Sarah   +13 more
core   +1 more source

Effects of the pandemic on women’s reproductive health protective attitudes: a Turkish sample

open access: yesReproductive Health, 2022
Plain language summary Impairment of sexual and reproductive health (SRH) and inability to use sexual and reproductive rights are an important public health problem during pandemics.
Derya Kaya Senol, Filiz Polat
doaj   +1 more source

The Rise of Apomixis in Natural Plant Populations

open access: yesFrontiers in Plant Science, 2019
Apomixis, the asexual reproduction via seed, has many potential applications for plant breeding by maintaining desirable genotypes over generations.
Diego Hojsgaard, Elvira Hörandl
doaj   +1 more source

A study protocol : using demand-side financing to meet the birth spacing needs of the underserved in Punjab Province in Pakistan [PDF]

open access: yes, 2014
Background: High fertility rates, unwanted pregnancies, low modern contraceptive prevalence and a huge unmet need for contraception adversely affect women's health in Pakistan and this problem is compounded by limited access to reliable information and ...
Abbas, Ghazanfer   +7 more
core   +4 more sources

Home - About - Disclaimer - Privacy