Crescimento inicial de mudas de pau ferro (Caesalpinia ferreaMart. ex Tul. var. leiostachya Benth.) sob diferentes regimes hídricos

Lenhard, Nádia Regina; Scalon, Silvana de Paula Quintão; Novelino, José Oscar

doi:10.1590/s1413-70542010000400011

Cited by 26 publications

(36 citation statements)

References 8 publications

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“…Similar results were observed with C. ferrea (pau-ferro) seedlings (LENHARD et al, 2010) cultivated at 70%, 40%, and 12.5% field capacity and under saturation conditions; with Myracrodruon urundeuva (aroeira) seedlings (FIGUEIRÔA et al, 2004) cultivated at 75%, 50%, and 25% field capacity; and with Guazuma ulmifolia (mutambo) seedlings (SCALON et al, 2011) cultivated at 100%, 50%, 25%, and 12.55% field capacity.…”

Section: Discussionsupporting

confidence: 77%

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

et al. 2016

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Information on germination, seedling development, and substrates and water requirements of native Savannah species are scarce, for propagation and plantation establishments. Based on this, we evaluated the initial growth of Campomanesia adamantium seedlings sown into tubes containing substrates with different compositions and water retention capacities, including red latosoil; red latosoil and Bioplant ® (1:1); red latosoil, sand, and semidecomposed poultry manure (1:1:0.5); red latosoil and sand (1:1); and red latosoil, sand, and semidecomposed poultry manure (1:2:0.5). The tubes were irrigated three times per week to 25%, 50%, 75%, and 100% of their water retention capacities. The morphological characteristics of the seedlings and their quality indexes were analyzed 52, 83, 114, and 145 days after sowing. We tested all possible combinations of substrates and percentages of water holding capacities, with four replicates (12 tubes). The substrates of red latosoil plus sand and red latosoil plus Bioplant ® were found to be most suitable for the growth and development of C. adamantium seedlings at water retention capacities between 75% and 100%. Growing conditions with water retention capacities of 25% and 50% should not be used to produce seedlings of C. adamantium.

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Section: Discussionsupporting

confidence: 77%

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

et al. 2016

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“…Os valores de clorofila são menores em plantas cultivadas em solo com maior quantidade de água devido ao aumento da concentração de radicais livres que a destroem (DREW, 1997). A disfunção hormonal, principalmente ligada ao aumento da concentração de etileno nas folhas induz além da perda de clorofila, a senescência (TAIZ; ZEIGER, 2009) e também redução na absorção de nutrientes, principalmente o nitrogênio, que faz parte da molécula de clorofila (LENHARD, 2008). Segundo Taiz e Zeiger (2009) o oxigênio é parte essencial da respiração celular, sendo que neste processo originase o ATP para os processos bioquímicos da raiz.…”

Section: Resultsunclassified

“…Esse fato pode estar relacionado a um mecanismo de tolerância ao estresse hídrico, pois, ocorre priorização do crescimento das raízes, proporcionando maior capacidade de absorver água e nutrientes (CORREIA; NOGUEIRA, 2004). Lenhard (2008), estudando crescimento inicial de mudas de "pau ferro" (Caesalpinia ferrea) sob teores de água de 12,5; 40; 70% da CRA e alagamento, também verificaram maior relação raiz/parte aérea nas plantas cultivadas sob menores quantidades de água.…”

Section: Resultsunclassified

Desenvolvimento de plantas de Desenvolvimento de plantas de girassol sob diferentes condições de fornecimento de água

et al. 2012

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ResumoA falta ou excesso de água no solo são prejudiciais ao desenvolvimento das plantas. Assim, o objetivo deste trabalho foi avaliar o crescimento de plantas de girassol em diferentes capacidades de retenção de água (CRA). O experimento foi realizado em casa de vegetação, com a variedade de girassol Embrapa 122/V-2000, sob o delineamento experimental em blocos casualizados com quatro tratamentos (60% CRA, 80% CRA, 100% CRA e condição de alagamento) e quatro repetições. As plantas foram avaliadas semanalmente entre os estádios V6 (caracterizado pela presença de seis folhas com no mínimo 4,0 cm) ao R4 (inicio da florescência). Avaliou-se a altura das plantas, diâmetro de caule, teor de clorofila, matéria seca das folhas, do caule, da parte aérea e das raízes, número de folhas, área foliar, e a relação entre a matéria seca da raiz e da parte aérea. Os resultados mostraram que as plantas de girassol apresentaram maior altura e diâmetro de colmo quando submetidas à maior disponibilidade de água. Nos tratamentos com estresse hídrico o aumento do teor de clorofila foi limitado, e nos tratamentos com maior disponibilidade hídrica o teor inicialmente aumentou, mas, nas últimas avaliações decresceu. Apesar da relação raiz/parte aérea ter apresentado maiores valores para o tratamento 60% da CRA, a área foliar, número de folhas, matéria seca do caule, da raiz, e da folha apresentou menores valores a 60% da CRA. Portanto, o melhor desenvolvimento dessas plantas foi observado quando submetidas a 80 e 100% da CRA. Palavras-chave: Ácido abscísico, estresse hídrico, etileno, Helianthus annuus, hipoxia AbstractUsually the lack or excess of water in the soil is harmful to plant development. Therefore, our objective was to evaluate the growth of sunflower plants under different water holding capacities (WHC). Trials were conducted in a greenhouse with plants of the sunflower cultivar Embrapa 122/V-2000. The experimental design was a randomized complete block with four treatments: 60%, 80% and 100% of WHC and a flooding level with four replications. Plants were evaluated weekly between stages V6 (with six leaves and 4.0 cm tall) to R4 (flowering). We evaluated the plant height, stem diameter, leaf chlorophyll content, leaves, stems, shoot and root dry matter, number of leaves, leaf area, and the relationship between root and shoot dry matter. The results showed that the sunflower plants had greater

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“…Lenhard et al (2010) observed lower leaf area of ironwood seedling (Caesalpinia ferrea Mart. ex Tul.…”

Section: Discussionmentioning

confidence: 88%

Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels

Scalon

Jeromini

Mussury

et al. 2014

An. Acad. Bras. Ciênc.

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The aim of this research was to evaluate the quality and photosynthetic metabolism of "uvaia" seedlings (Eugenia pyriformis Cambess.) on different substrates and water regimes. ), photosynthesis (µmol m -2 s -1 ) and efficiency of water use (µmol de CO 2 / mmol de H 2 O). Until their 150 th days, the seedlings had higher quality and photosynthetic metabolism when cultured with substrates containing latosol + sand + poultry litter on the two variations assessed and water retention capacity of 50%.

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Crescimento inicial de mudas de pau ferro (Caesalpinia ferreaMart. ex Tul. var. leiostachya Benth.) sob diferentes regimes hídricos

Cited by 26 publications

References 8 publications

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

Desenvolvimento de plantas de Desenvolvimento de plantas de girassol sob diferentes condições de fornecimento de água

Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels

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