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| Xavier, Klerton Rodrigues Forte; Universidade Federal da Paraíba; Andrade, Leonaldo Alves de; Universidade Federal da Paraíba; Coelho, Maria do Socorro Evangelista; Universidade Federal da Paraíba; Assis, Felipe Nollet de Medeiros; Universidade Federal da Paraíba; Fabricante, Juliano Ricardo; Universidade Federal da Paraíba. |
| O objetivo do presente trabalho foi avaliar os impactos causados pelo fogo sobre o estrato arbustivo-arbóreo de um fragmento de Floresta Atlântica, em Areia, Paraíba. Foram plotadas 40 parcelas de 100 m2 em dois ambientes: floresta intacta (Ambiente I) e floresta queimada (Ambiente II). O presente levantamento incluiu indivíduos com diâmetro ao nível do solo (DNS) ≥ 3 cm, sendo a estrutura da vegetação avaliada por parâmetros convencionais. Calcularam-se, também, os índices de diversidade e de equabilidade, além da similaridade entre os ambientes. Foram amostrados 1.960 indivíduos, pertencentes a 22 famílias, 26 gêneros e 35 espécies. No Ambiente I, Protium heptaphyllum foi a espécie mais abundante e importante; no Ambiente II, sobressaíram-se os... |
| Tipo: Fitossociologia |
Palavras-chave: 2.05.00.00-9 incêndio florestal; Perfilhamento; Impactos ambientais; Floresta serrana 2.05.00.00-9 forest fire; Shoots; Environmental impacts; Mountain forest. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4522 |
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| RAMOS,LUIS CARLOS DA SILVA; CARVALHO,ALCIDES. |
| Roots and shoots from seedlings of 29 coffee genotypes were studied to better characterize the entries from the Coffea germplasm bank of the Instituto Agronômico (IAC), Campinas, State of São Paulo, Brasil. The varieties were seeded in a randomized complete block design with 6 replications and 10 plants per plot. The characters evaluated were: plant (PL), shoot (SL) and root (RL) length; total plant (PDM), shoot (SDM), root (RDM) and lateral root (LRDM) dry matter. A lateral root index (LRI) and shoot root dry matter (SRDM = SDM/RDM) and length ratios; (SRL = SL/RL) were calculated. The dwarf varieties (Catuaí, Icatu-caturra, Vila Sarchi, San Ramon, Vila Lobos, São Bernardo) presented higher LRDM and lower SDM than the normal size varieties such as Mundo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee; Varieties; Seedlings; Shoots; Roots; Coffea. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051997000100006 |
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| Beyá-Marshall,Víctor; Fichet,Thomas. |
| The aim of this study was to characterize the phenological, vegetative and reproductive behavior variables of Frantoio olive trees in an "off year (with a low crop load) and an "on" year (with a high crop load). To do this, during the 2011-2012 and 2012-2013 seasons, "off" and "on", respectively, phenological variables, plant growth (shoots and roots) and reproductive growth (type of flower, fruit set and growth), were monitored biweekly. In addition, the yield per tree was assessed, and the crop load was estimated. The main results showed that crop load strongly influenced these variables. The distribution and intensity of vegetative growth, both in the roots and aboveground, decreased more and had lower intensity in the high fruiting season, with a... |
| Tipo: Journal article |
Palavras-chave: Alternate bearing; Flowering; Rhizotron; Root growth dynamics; Shoots; Source-sink. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100005 |
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| Reinhardt,Domingo Haroldo R. C.; Bartholomew,Duane P.; Souza,Fernanda Vidigal Duarte; Carvalho,Ana Cristina Portugal Pinto de; Pádua,Tullio Raphael Pereira de; Junghans,Davi Theodoro; Matos,Aristoteles Pires de. |
| Abstract Pineapple is one of the most important fruits, with large production in tropical and subtropical regions and great appreciation by consumers all over the world. The pineapple plant has many specific morphological, anatomical and physiological characteristics that determine crucial aspects of pineapple crop management, such as flower induction, water use and vegetative methods of propagation. The use of sexual reproduction of pineapple is restricted to breeding purposes carried out by research institutes looking for new hybrids with improved agronomic characteristics. Seeds are only produced if cross pollination among varieties occurs. Commercially pineapple has to be propagated by vegetative material, an asexual reproduction, without new... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ananas comosus comosus; Shoots; Plantlets; Propagules; Micropagation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000604002 |
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