Results 21 to 30 of about 46,771 (216)

Natural and artificial pollination of white-fleshed pitaya

Anais da Academia Brasileira de Ciências, 2022
To produce pitaya (Hylocereus spp.), it is essential that pollination occur, either artificially or by pollinating agents. This study evaluated the viability of self-pollination, cross-pollination, and natural pollination, as well as pollen viability ...
RENATA A. MOREIRA, MARIANE A. RODRIGUES, RAFAELA C. DE SOUZA, ALEXANDRE D. DA SILVA, FÁBIO O.R. SILVA, CAROLINA G. LIMA, LEILA A.S. PIO, MOACIR PASQUAL   +7 more
doaj   +1 more source

Social Learning in Bumblebees (Bombus impatiens): Worker Bumblebees Learn to Manipulate and Forage at Artificial Flowers by Observation and Communication within the Colony

Psyche: A Journal of Entomology, 2013
Social learning occurs when one individual learns from another, mainly conspecific, often by observation, imitation, or communication. Using artificial flowers, we studied social learning by allowing test bumblebees to (a) see dead bumblebees arranged in
Hamida B. Mirwan, Peter G. Kevan
doaj   +1 more source

The Last Mile: Using Local Knowledge to Identify Barriers to Sustainable Grain Legume Production

Frontiers in Ecology and Evolution, 2018
Grain legumes (or pulses–annual leguminous crops that are harvested solely for their dried seeds such as lentils or chickpeas) are essential for sustainable cropping systems.
Barbara M. Smith, Barbara M. Smith, Alfred Gathorne-Hardy, Alfred Gathorne-Hardy, Alfred Gathorne-Hardy, Soumik Chatterjee, Parthiba Basu   +6 more
doaj   +1 more source

Spatiotemporal Variation in Pollination Deficits in an Insect-Pollinated Dioecious Crop

Plants, 2021
Inadequate quantity and quality of pollen reaching the stigmas decreases the sexual reproductive output of plants, compromising yield. Still, the current extent of pollen limitation affecting yield (i.e., pollination deficits) is poorly quantified.
Helena Castro, Catarina Siopa, Vinícius Casais, Mariana Castro, João Loureiro, Hugo Gaspar, Maria Celeste Dias, Sílvia Castro   +7 more
doaj   +1 more source

Yam (Dioscorea rotundata Poir.) Displays Prezygotic and Postzygotic Barriers to Prevent Autogamy in Monoecious Cultivars

Agronomy, 2022
Cultivated yam (D. rotundata) is a staple tuber crop in West Africa whose sexual reproduction control remains largely unknown despite its importance for plant breeding programs. In this paper, we compared self-pollination, intracultivar cross-pollination
Narcisse Denadi, Mounirou Yolou, Ayènan Eric Dadonougbo, Jeanne Zoundjihékpon, Alexandre Dansi, Christophe Gandonou, Muriel Quinet   +6 more
doaj   +1 more source

EFFECT OF POLLINATION ON FRUIT CHARACTERS OF THREE APRICOT CULTIVARS. [PDF]

Journal of Plant Production, 2005
The present investigation was carried out during the two successive seasons of 2002 and 2003 on mature trees of Canino, Amal and Perfection apricot cultivars.
Sh. Abd El Mageed, A. El-Sabagh, A . Ibrahim   +2 more
doaj   +1 more source

Influence of pollination mechanisms on the physical-chemical quality of strawberry (Fragaria x ananassa) cv. San Andreas [PDF]

Anais da Academia Brasileira de Ciências
The objective of this study was to evaluate the physical-chemical quality parameters of strawberry fruits, cultivar San Andreas, depending on different pollination mechanisms.
PRISCILA S. MIRANDA, ZILDA CRISTINA M. LIMA, RAQUEL PÉREZ-MALUF, ELISMAR P. DE OLIVEIRA, PAULO HENRIQUE M. MONROE, ALDENISE A. MOREIRA   +5 more
doaj   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Setback for sustainability: Brazil’s new licensing law threatens climate and biodiversity goals

Perspectives in Ecology and Conservation
Brazil’s recent environmental licensing reform exposes a contradiction between national regulation and international climate and biodiversity commitments. Law No.
Thiago Serrano de Almeida Penedo, Kayna Agostini, André Rodrigo Rech, António Mauro Saraiva, Blandina Felipe Viana, Carlos Alfredo Joly, Danilo Boscolo, Isabela Galarda Varassin, José Augusto Salim, Juliana Hipólito, Márcia Motta Maués, Marina Wolowski, Natalia Pirani Ghilardi-Lopes, Onildo Joao Marini-Filho, Pedro Joaquim Bergamo, Pietro Kiyoshi Maruyama, Leandro Freitas   +16 more
doaj   +1 more source

Floral Biology and pollination requirements of sesame (Sesamum indicum L.)

Acta Scientiarum: Animal Sciences, 2014
This study aimed to investigate the floral biology and pollination requirements of sesame (Sesamum indicum L.), cultivar CNPA G2. The study was carried out at Barbalha, State of Ceará, and consisted of two phases: floral biology and pollination ...
Patrícia Barreto de Andrade, Breno Magalhães Freitas, Epifânica Emanuela de Macêdo Rocha, José Antônio de Lima, Leonardo Lopes Rufino   +4 more
doaj   +1 more source