A greenhouse study on root dynamics of cactus pears, Opuntia ficus-indica and O. robusta

Snyman, H.A.

doi:10.1016/j.jaridenv.2005.10.004

Cited by 48 publications

(51 citation statements)

References 21 publications

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“…Despite the high cumulative values of rainfall during some periods (1, 2, and 9), drainage was low, because, after dry periods, most of the water is used in soil replenishment or is extracted by the plant root system, as described by Primo et al (2015). This can be explained by the high capacity of cacti to store water in cladodes and by the elongation of the root system, which increases rapidly after being subjected to long periods of drought (Snyman, 2006a(Snyman, , 2006b). These roots, called "rain roots", are extensive, dense, and close to the soil surface.…”

Section: Resultsmentioning

confidence: 99%

“…These roots, called "rain roots", are extensive, dense, and close to the soil surface. They appear shortly after the soil is moistened, quickly absorbing water, and disappear soon after when the soil dries up (Snyman, 2006b).…”

Section: Resultsmentioning

confidence: 99%

“…ΔA negative values are probably a result of increased root activity after periods with higher rainfall, such as: period 4, (1) Means followed by equal letters, in the columns, do not differ by Tukey's studentized test, at 5% probability. (Snyman, 2006a(Snyman, , 2006b.…”

Section: Resultsmentioning

confidence: 99%

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Soil water dynamics and evapotranspiration of forage cactus clones under rainfed conditions

Silva

Primo

Moura

et al. 2015

Pesq. agropec. bras.

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-The objective of this work was to evaluate soil water dynamics in areas cultivated with forage cactus clones and to determine how environmental conditions and crop growth affect evapotranspiration. The study was conducted in the municipality of Serra Talhada, in the state of Pernambuco, Brazil. Crop growth was monitored through changes in the cladode area index (CAI) and through the soil cover fraction, calculated at the end of the cycle. Real evapotranspiration (ET) of the three evaluated clones was obtained as the residual term in the soil water balance method. No difference was observed between soil water balance components, even though the evaluated clones were of different genus and had different CAI increments. Accumulated ET was of 1,173 mm during the 499 days of the experiment, resulting in daily average of 2.35 mm. The CAI increases the water consumption of the Orelha de Elefante Mexicana clone. In dry conditions, the water consumption of the Miúda clone responds more slowly to variation in soil water availability. The lower evolution of the CAI of the IPA Sertânia clone, during the rainy season, leads to a higher contribution of the evaporation component in ET. The atmospheric demand controls the ET of clones only when there is higher soil water availability; in this condition, the water consumption of the Miúda clone decreases more rapidly with the increase of atmospheric demand.Index terms: Nopalea, Opuntia, CAM photosynthetic pathway, evapotranspiration. Dinâmica de água no solo e evapotranspiração de clones de palma forrageira sob condições de sequeiro

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Soil water dynamics and evapotranspiration of forage cactus clones under rainfed conditions

Silva

Primo

Moura

et al. 2015

Pesq. agropec. bras.

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“…Na região do Brejo Paraibano, polarizada pelo município de Areia, a exemplo da faixa costeira do Litoral Paraibano, a inaptidão climática para o cultivo da palma forrageira também se dá em função da precipitação superior a 1100 mm ( Em condições de elevada quantidade de água no solo a palma forrageira tem seu desenvolvimento inibido visto que as plantas CAM são fisiologicamente preparadas para as condições de escassez de água em virtude de desenvolverem mecanismos de armazenamento de quantidades consideráveis de água em seus tecidos, bem como fixam CO 2 durante a noite reduzindo a transpiração devez que a perda de água à noite é mais baixa que durante o dia (Nobel, 1994;Snyman, 2006b). Assim, sob condições de umidade abundante no solo acumulam água em quantidades superiores à sua capacidade transpirativa e ensejam a ocorrência do apodrecimento, tombamento e só então se tornam altamente vulneráveis a doenças, principalmente àquelas causadas por fungos.…”

Section: Resultsunclassified

Zoneamento agroclimático da palma forrageira (Opuntia sp.) para o estado da Paraíba

Bezerra¹,

Araújo²,

Pereira

et al. 2014

Rev. bras. eng. agríc. ambient.

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R E S U M OA palma forrageira tornou-se, ao longo dos anos, uma importante alternativa forrageira no semiárido brasileiro (SAB) principalmente em longos períodos de estiagens. Apesar de sua magnitude para a agropecuária, seu cultivo tem dispensando tratos culturais básicos e embasamento técnico-científico quanto às suas exigências climáticas. Assim, o principal objetivo deste estudo foi elaborar o zoneamento agroclimático da cultura da palma forrageira (Opuntia sp.) para o estado da Paraíba. O zoneamento agroclimático da palma forrageira foi elaborado com base nos indicadores climáticos delineados na literatura e nos dados climatológicos de precipitação e temperatura (média, máxima e mínima) de 97 localidades do estado da Paraíba. De acordo com os resultados obtidos, a mesorregião da Borborema é a que apresenta as condições climáticas mais favoráveis para o cultivo da palma forrageira. As mesorregiões do Agreste, Sertão e a parte do Litoral, são aptas porém com restrições. No entanto, recomenda-se o cultivo da palma forrageira em todo o território do estado da Paraíba, exceto para a parte costeira da mesorregião do Litoral e região em torno de Areia. Em ambos os casos a inaptidão ocorre em função do excesso de precipitação. Agroclimatic zoning of cactus pear (Opuntia sp.) for the Paraíba state A B S T R A C TThe cactus pear has become over the years an important forage alternative for brazilian semiarid region, especially during long periods of drought. Despite its importance for agriculture, its cultivation has dispensed basic crop practices and fundamentals technical-scientific basis about its climatic requirements. Thus, the main objective of this study was to elaborate the agroclimatic zoning of cactus pear (Opuntia sp.) for the state of Paraíba. The agroclimatic zoning of cactus pear was based on climatic indicators outlined in the literature and climatological data of precipitation and temperature (mean, maximum, and minimum) from 97 locations in the state of Paraíba. According to the results, the region of 'Borborema' is the most favorable for the cultivation of cactus pear. The regions of ' Agreste' , 'Sertão' , and coastal part of Litoral may be used but with restrictions. However, the cultivation of cactus pear is recommended throughout the state of Paraíba, except the coastal part of the Litoral and the region around Areia. In both cases, the inability is due to excessive precipitation. Palavras-chave:climatologia balanço hídrico climático indicadores climáticos precipitação

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“…The Prickly pear (Opuntia ficus-indica L.) is an introduced plant particularly well adapted to environmental stress conditions occurring in arid and semi-arid areas (Neffar 2012;Neffar et al 2014;Snyman 2006). It was planned to use it as a facilitator-plant or plant-nurse to promote the development of natural plant species and to force the regeneration process in the assumption that the rehabilitation of a degraded ecosystem is possible by shortening different phases of the gradual ecological succession.…”

Section: Introductionmentioning

confidence: 99%

Effects of Soil Chemical Properties and Seasonality on Mycorrhizal Status of Prickly Pear (Opuntia ficus-indica) Planted in Hot Arid Steppe Rangelands

Neffar¹,

Beddiar²,

Chenchouni³

2015

JSM

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A greenhouse study on root dynamics of cactus pears, Opuntia ficus-indica and O. robusta

Cited by 48 publications

References 21 publications

Soil water dynamics and evapotranspiration of forage cactus clones under rainfed conditions

Soil water dynamics and evapotranspiration of forage cactus clones under rainfed conditions

Zoneamento agroclimático da palma forrageira (Opuntia sp.) para o estado da Paraíba

Effects of Soil Chemical Properties and Seasonality on Mycorrhizal Status of Prickly Pear (Opuntia ficus-indica) Planted in Hot Arid Steppe Rangelands

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