Annual Flowering
Mostrando 1-12 de 53 artigos, teses e dissertações.
-
1. Genetic progress of the peach breeding program of Embrapa over 16 years
Abstract The peach breeding program of the Brazilian Agricultural Research Corporation (Embrapa), addressing the adaptation to mild winter conditions, is one of the largest in the world and maintains a germplasm collection of nearly 900 accessions. The objective was to estimate the genetic progress in fruit weight (FW) and fruit development period (FDP) resu
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
-
2. Leaf proline content and its relation to fruit load and flowering in citrus under field conditions
Resumo Espécies de citros cultivadas em zonas temperadas têm brotação inibida no inverno, retornando na primavera quando elas também florescem. O principal fator que define o destino vegetativo ou reprodutivo das gemas é a presença de frutos em desenvolvimento. Baixas temperaturas no inverno retardam o metabolismo das plantas, que tem sido relatado c
Rev. Bras. Frutic.. Publicado em: 25/03/2019
-
3. EFFECT OF FIRE ON FLOWERING AND FRUITING OF ANACARDIUM HUMILE (ANACARDIACEAE) IN CERRADO STRICTO SENSU
RESUMO O conhecimento acerca dos efeitos do fogo na reprodução sexual das espécies lenhosas do Cerrado é fundamental para a elaboração de políticas públicas e de ferramentas de manejo para a sua conservação. O presente estudo avaliou o efeito de uma queima controlada na floração e frutificação de Anacardium humile em ambiente de cerrado sentido
Rev. Árvore. Publicado em: 11/02/2019
-
4. Root and Shoot Contribution to Carbon and Nitrogen Inputs in the Topsoil Layer in No-Tillage Crop Systems under Subtropical Conditions
ABSTRACT Recycling of carbon (C) and nitrogen (N) from plants into soils is decisive for maintaining soil organic matter and soil fertility. Therefore, we quantified plant biomass and C and N in the shoots and roots from the topsoil layer for a wide range of annual crops grown under subtropical conditions. We grew 26 species, 13 main crops, and 13 cover crop
Rev. Bras. Ciênc. Solo. Publicado em: 06/08/2018
-
5. Pollination biology of melittophilous legume tree species in the Atlantic Forest in Southeast Brazil
ABSTRACT This study describes the floral phenology and morphology, reproductive biology and pollinators for eight legume tree species, Schizolobium parahyba, Senna macranthera, and Senna multijuga (Caesalpinioideae), as well as Andira fraxinifolia, Lonchocarpus cultratus, Pterocarpus violaceus, Swartzia oblata, and S. simplex (Papilionoideae), in the Atlanti
Acta Bot. Bras.. Publicado em: 02/07/2018
-
6. Can the reproductive system of a rare and narrowly endemic plant species explain its high genetic diversity?
ABSTRACT The reproductive system of flowering plants can be highly variable, affecting their biology, gene flow and genetic variability among populations. Petunia secreta is a rare annual endemic species of Pedra do Segredo, located in the municipality of Caçapava do Sul, state of Rio Grande do Sul, Brazil. Although rare, the species possesses a high level
Acta Bot. Bras.. Publicado em: 08/01/2018
-
7. Cover crops and pruning in Bobal and Tempranillo vineyards have little influence on grapevine nutrition
ABSTRACT Cover crops may improve vineyard soil properties, grapevine nutrient status and berry composition, however, factors such as cover crop type, annual rainfall, climate and irrigation may change their effects on vineyards. From 2008 to 2011, the effects of a non-permanent cover crop and two pruning techniques on soil as well as vine nutrients and grape
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-06
-
8. The reproductive biology of the early-divergent genus Anaxagorea (Annonaceae), and its significance for the evolutionary development of the family
ABSTRACT Data of six studied Neotropical Anaxagorea species are analyzed and discussed with respect to the population structure, flowering phenology, flower morphology, anthesis, scent emission, thermogenesis, floral visitors, breeding system, fruit-set and seed dispersal. The probably reason for the patchy distribution of small populations of Anaxagorea spe
Acta Bot. Bras.. Publicado em: 15/03/2016
-
9. Genetic progress after cycles of upland rice recurrent selection
Periodic assessment of the genetic progress made in recurrent selection programs is essential for assessing the evolution of the programs and identifying the main factors that have contributed to this progress. This study aimed to estimate genetic progress in grain yield, plant height and days-to-flowering achieved in the CNA6 population of upland rice (Oryz
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
-
10. Intra annual seed production and availability of two morphotypes of Brosimum rubescens taubert in forests of the Colombian Amazon
We assessed the reproductive phenology, production, and availability of seeds for two morphotypes of Brosimum rubescens Taub. (Moraceae), locally known as black palosangre (BP) and white palosangre (WP) during an annual cycle in a 20-ha mega plot located in a primary forest at the El Zafire Biological Station, in the Colombian Amazon. We found that 87% and 4
Biota Neotrop.. Publicado em: 2014
-
11. Reproductive phenological pattern of Calotropis procera (Apocynaceae), an invasive species in Brazil: annual in native areas; continuous in invaded areas of caatinga
In this study, we evaluated the phenological patterns (vegetative and reproductive) of Calotropis procera (Apocynaceae-Asclepiadoideae) in Brazil, comparing its phenology in an area where it is invasive with that observed in areas to which it is native. Phenological observations were carried out over a 24-month period at sites in and around areas of caatinga
Acta Bot. Bras.. Publicado em: 2013-06
-
12. Mixed reproduction systems in Opuntia monacantha (Cactaceae) in Southern Brazil
The Cactaceae have morphological and physiological adaptations associated with their life histories that are reflected in different modes of reproduction and multiplication. The reproductive phenology, preferential reproductive mode, and the sexual and asexual multiplication of Opuntia monacantha were investigated between 2003 and 2006 in two restinga (sandy
Braz. J. Bot.. Publicado em: 2012