نتایج جستجو برای: pollination success

تعداد نتایج: 176439  

2017
Peter Bernhardt Peter Goldblatt

Novel, specialized systems exploiting bibionid flies, oil-collecting bees, wasps, or crepuscular settling moths as pollen vectors are added to the range of recorded pollination mechanisms in sub-Saharan Africa Iridaceae, while knowledge of the pollination of previously understudied genera such as Aristea, Bahiana, Ferraria, Hesperantha, and Tritoniopsis is expanded. The pollination of 357 speci...

Journal: :journal of nuts 0
fereidoon ajamgard department of horticultural research, safiabad agricultural research and education and natural resources center, agricultural research, education and extension organization (areeo), dezful, iran majid rahemi department of horticulture, shiraz university, shiraz, iran kourosh vahdati department of horticulture, aburaihan campus, university of tehran, tehran, iran

this study was conducted to determine the best pollinizer for five selected pecan cultivars in southwest of iran at safiabad agricultural research center in 2014-2015. the cultivars included: 'gratex', '10j', 'wichita 6j', 'graking', 'choctaw' as pollinated cultivars (♀) and 'gratex', 'peruque', 'comanche 4m', &apos...

2017
Sheema A Aziz Gopalasamy R Clements Kim R McConkey Tuanjit Sritongchuay Saifful Pathil Muhammad Nur Hafizi Abu Yazid Ahimsa Campos-Arceiz Pierre-Michel Forget Sara Bumrungsri

Fruit bats provide valuable pollination services to humans through a unique coevolutionary relationship with chiropterophilous plants. However, chiropterophily in the Old World and the pollination roles of large bats, such as flying foxes (Pteropus spp., Acerodon spp., Desmalopex spp.), are still poorly understood and require further elucidation. Efforts to protect these bats have been hampered...

Journal: :Plant biology 2008
L M Pansarin E R Pansarin M Sazima

The genus Cyrtopodium comprises about 42 species distributed from southern Florida to northern Argentina. Cyrtopodium polyphyllum occurs on rocks or in sandy soils, in restinga vegetation along the Brazilian coast. It flowers during the wet season and its inflorescences produce a high number of resupinate yellow flowers. Cyrtopodium polyphyllum offers no rewards to its pollinators, but mimics t...

2017
Xiao-Fang Jin Zhong-Ming Ye Grace M. Amboka Qing-Feng Wang Chun-Feng Yang

A sensitive bilobed stigma is thought to assure reproduction, avoid selfing and promote outcrossing. In addition, it may also play a role in pollinator selection since only pollinators with the appropriate body size can trigger this mechanism. However, no experimental study has investigated how the sensitive stigma responds to different pollinators and its potential effects on pollination. Mazu...

Farshid Rafati Saman Hajmohamadi, Sohrab Hajmohamadi

Pollination is the mechanical transfer of male pollen of a flower on the female stigma.This process has a fundamental role to survive the plants species.Since this process is invisible ,its importance has been ignored.Insufficient pollination can be harmful for the farmer instead of being useful.Pollination can be done via some ways.The most important ways are done by insects and wind.Pistachio...

2011
Eileen F. Power Jane C. Stout

1. Pollination interactions comprise a network of connections between flowers and insect visitors. They are crucial for reproductive success in many angiosperms but are threatened by intensive agricultural practices. Although less intensive approaches, including organic farming, could improve farmland biodiversity, it is not clear whether or not these approaches enhance wild plant pollination a...

2009
Philip Raeth Stefan Smolnik Nils Urbach Christian Zimmer

Induced by the widespread use of social software in personal contexts, companies wish to profit from its advantages. Owing to limited IT budgets and the need to justify investments in such systems, it is important to assess the benefits of employing social software in the corporate context. In this paper, we propose conceptual models for assessing the success of two specific types of social sof...

2016
Viviane Sinébou Muriel Quinet Bonaventure C. Ahohuendo Anne-Laure Jacquemart

Conservation strategies are urgently needed in Tropical areas for widely used tree species. Increasing numbers of species are threatened by overexploitation and their recovery might be poor due to low reproductive success and poor regeneration rates. One of the first steps in developing any conservation policy should be an assessment of the reproductive biology of species that are threatened by...

2004
DIEGO P. VÁZQUEZ DANIEL SIMBERLOFF

Herbivores can affect plants not only directly through browsing and trampling, but also indirectly through other species. For example, herbivores could affect the interaction between plants and their pollinators. Because plant population density may affect plant–pollinator interactions and plant reproductive success, we hypothesized that herbivores could affect pollination and plant reproductio...

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