Results 41 to 50 of about 3,238 (115)

Productive characteristics of sunflower genotypes irrigated with different levels of saline water

open access: yesBioscience Journal, 2022
Sunflower is suitable for family farmers from Northeast Brazil who are benefited by the production of grain and oil and is adequate for crop rotation and for honey production.
Kaline Dantas Travassos   +9 more
doaj   +1 more source

Nutritional status of watermelon fertirrigation with nitrogen and phosphorus rates

open access: yesSemina: Ciências Agrárias, 2014
The objective of this work was to evaluate the effect of N and P2O5 rates through irrigation water on the uptake of macro and micronutrients by watermelon crop.
Marcelo Sobreira de Souza   +4 more
doaj   +1 more source

Análise Florística e Estrutural de uma Área de Caatinga Preservada no Município de Mossoró/RN

open access: yesConexões: Ciência e Tecnologia, 2017
Na região Nordeste do Brasil predomina o bioma Caatinga, marcado pelo clima semiárido e vegetação que apresenta diversas fitofisionomias, adaptadas a extremas condições de seca.
Lívia Laiane Barbosa Alves   +3 more
doaj   +1 more source

State infrastructural power in a neopatrimonialist democratization context: Why Tunisian sustainable land management fails

open access: yesReview of Policy Research, Volume 41, Issue 6, Page 985-1016, November 2024.
Abstract Sustaining agricultural production in arid and semi‐arid regions is of paramount importance to food security, geo‐political independence, and social stability. In this context, it is vital to understand the effectiveness of policies. In this article, we aim to answer the question of what role the state and its policies play for soil protection
Andreas Thiel   +3 more
wiley   +1 more source

Nutrient losses due to water erosion using simulated rainfall in southern Brazil

open access: yesDyna, 2018
Erosion is the main form of degradation in the world, consequently of loss of soil, water and nutrients, provoking direct and indirect damages. The objective of this work is to quantify N, P and K losses by water erosion under simulated rainfall ...
Jeane Cruz Portela   +6 more
doaj   +1 more source

Similar climate–growth relationships but divergent drought resilience strategies in coexisting Mediterranean shrubs

open access: yesJournal of Ecology, Volume 112, Issue 8, Page 1804-1817, August 2024.
These results highlight the importance of drought as a driver of growth in Mediterranean scrublands. Growth resilience strategies differed between species with junipers being less resilient to drought than other coexisting shrubs. Further research should investigate how this difference in post‐drought resilience is related to functional traits ...
Elisa Tamudo   +5 more
wiley   +1 more source

Activity of antioxidant enzymes and proline accumulation in Erythrina velutina Willd. seeds subjected to abiotic stresses during germination

open access: yesJournal of Seed Science
The aim of this study was to evaluate the effect of different abiotic stresses on the activity of antioxidant enzymes and on accumulation of proline in Erythrina velutina Willd. seeds during germination.
Renata Conduru Ribeiro   +3 more
doaj   +1 more source

Distinct bird communities in forests and fruit farms of Caatinga landscapes

open access: yesIbis, Volume 166, Issue 3, Page 1081-1091, July 2024.
Agricultural expansion and intensification drive changes in bird assemblages and contribute to the homogenization of communities. By working across the semi‐arid biome of the Caatinga in northeastern Brazil, this study is the first to compare the bird communities found in intensively managed fruit farms with those in remnant Caatinga forest patches. We
Natalia B. Zielonka   +8 more
wiley   +1 more source

Distribuição e densidade do bivalve Tivela mactroides (Born, 1778) em região estuarina tropical do semiárido do nordeste brasileiro

open access: yesBiotemas, 2013
O presente estudo avaliou a distribuição (espacial e temporal) e a densidade do molusco Tivela mactroides em praias de uma região estuarina tropical do semiárido brasileiro e as suas relações com temperatura, salinidade, matéria orgânica e granulometria
Eudilena Laurindo Medeiros   +2 more
doaj   +1 more source

Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: Responses of a drought‐avoider perennial grass to climate aridification

open access: yesFunctional Ecology, Volume 38, Issue 4, Page 955-966, April 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Intrinsic water use efficiency (WUEi) reflects the trade‐off between photosynthetic carbon gain and water loss through stomatal conductance and is key for understanding dryland plant responses to climate change.
Wei Ren   +5 more
wiley   +1 more source

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