Effect of Soil Moisture Depletion on Crop Yield and Stomatal Infiltration<sup>1</sup>

Fuehring, H. D.; Mazaheri, Ahmadreza; Bybordi, Mohammed; khan, Aaqil

doi:10.2134/agronj1966.00021962005800020023x

Cited by 17 publications

(6 citation statements)

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“…Disruption of the traditional way of life, leading to famine and destruction of the land, was discussed by Baker (1974), Campbell (1974), and Glantz (1976) immediately after the Sahel drought of 1968-1973. The significance of drought as opposed to socio-economic changes in the Sahel continues to be questioned by Garcia (1981), Matlock (1981), andScott (1984). 0899-841 8/89/040371-12$06.00 0 1989 by the Royal Meteorological Society It was reported by the Overseas Development Institute (1987) that drought has recently returned to the Sahel region (1983-1985), but effective solutions are still being sought to prevent future disasters.…”

Section: Introductionmentioning

confidence: 99%

Sahel drought: Meteorological or agricultural?

Agnew

1989

Intl Journal of Climatology

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Meteorological definitions of drought are deemed to reveal little of the effects of water deficiencies upon the inhabitants of arid regions. An agricultural definition of drought is obtained using a water-balance model of the moisture available to millet (Pennisetum typhoides). The model accepts inputs of rainfall, potential evapotranspiration, and crop development for 5-day periods. Values for field capacity, wilting point, bulk density, crop coefficients, and rooting depth are obtained, and changes in soil moisture, actual evapotranspiration, and drainage are computed. The resulting seasonal millet moisture deficits are mapped for 'millet drought'in Niger from 1967 to 1978. These maps indicate that for traditional areas of millet cultivation, 'millet drought' was a rare event during the 1970s, but was common and widespread in the more northerly, marginal lands.

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Section: Introductionmentioning

confidence: 99%

Sahel drought: Meteorological or agricultural?

Agnew

1989

Intl Journal of Climatology

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“…During infiltration, the gases from the apoplastic space of the mesophyll are replaced by PFC, PFD or PP11 to create a homogeneous, undetectable filling of the leaf airspaces resulting in reduced noise and quantifiably clearer images [ 21 ]. The results of studies on the mechanisms of spontaneous infiltration are of particular use also when larger areas are subjected to foliar spraying with fertilizer, herbicides, plant protection products or growth regulators [ 22 – 26 ]. Spontaneous infiltration was recently used for introduction of cerium oxide nanoparticles (nanoceria) complexed with the surfactant Silwet L-77 (0.05%) into cotton leaves, improving the salt tolerance of cotton plants [ 27 ].…”

Section: Strategies Of Leaf Infiltrationmentioning

confidence: 99%

Leaf infiltration in plant science: old method, new possibilities

Chincinska

2021

Plant Methods

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The penetration of substances from the surface to deep inside plant tissues is called infiltration. Although various plant tissues may be effectively saturated with externally applied fluid, most described infiltration strategies have been developed for leaves. The infiltration process can be spontaneous (under normal atmospheric pressure) or forced by a pressure difference generated between the lamina surface and the inside of the leaf. Spontaneous infiltration of leaf laminae is possible with the use of liquids with sufficiently low surface tension. Forced infiltration is most commonly performed using needle-less syringes or vacuum pumps.Leaf infiltration is widely used in plant sciences for both research and application purposes, usually as a starting technique to obtain plant material for advanced experimental procedures. Leaf infiltration followed by gentle centrifugation allows to obtain the apoplastic fluid for further analyses including various omics. In studies of plant-microorganism interactions, infiltration is used for the controlled introduction of bacterial suspensions into leaf tissues or for the isolation of microorganisms inhabiting apoplastic spaces of leaves. The methods based on infiltration of target tissues allow the penetration of dyes, fixatives and other substances improving the quality of microscopic imaging. Infiltration has found a special application in plant biotechnology as a method of transient transformation with the use of Agrobacterium suspension (agroinfiltration) enabling genetic modifications of mature plant leaves, including the local induction of mutations using genome editing tools. In plant nanobiotechnology, the leaves of the target plants can be infiltrated with suitably prepared nanoparticles, which can act as light sensors or increase the plant resistance to environmental stress. In addition the infiltration has been also intensively studied due to the undesirable effects of this phenomenon in some food technology sectors, such as accidental contamination of leafy greens with pathogenic bacteria during the vacuum cooling process.This review, inspired by the growing interest of the scientists from various fields of plant science in the phenomenon of infiltration, provides the description of different infiltration methods and summarizes the recent applications of this technique in plant physiology, phytopathology and plant (nano-)biotechnology.

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“…a) Produção e número de tubérculos -O decréscimo na produção de tubérculos com o aumento na tensão de umidade do solo, conforme revelam os resultados, tem sido amplamente reconhecido (ELLISON & JACOB, 1954;FULTON & MURWIN, 1955;BOX et al, 1963;FUEHRING et al, 1966). Assim, nos tratamentos onde a irrigação impediu que o solo atingisse níveis de água disponível inferiores a 60%, a produção foi sensivelmente superior aos tratamentos com níveis mais reduzidos de umidade.…”

Section: Discussão ε Conclusõesunclassified

“…3. O aumento na porcentagem de tubérculos pequenos com a tensão de umidade do solo tem sido observado em inúmeros trabalhos anteriores (FUEHRING et al, 1966;FULTON & MURWIN, 1955;MACGILLIVRAY, 1950).…”

Section: Discussão ε Conclusõesunclassified

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A influência da irrigação e adubação no rendimento, tamanho e número de tubérculos de batata (Solanum tuberosum L.)

Scalopi¹,

Scardua²,

Klar³

1975

An. Esc. Super. Agric. Luiz de Queiroz

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RESUMONeste trabalho foi realizado um estudo para avaliar os efeitos da irrigação e fertilizantes no rendimento, número e tamanho dos tubércu¬ los de batata. A irrigação foi baseada na umidade média do solo quando atingia as tensões de 0,3; 0,6; 1,0; 3,0 e 10,0 bares. As doses de fertilizantes aplicadas foram de 40 kg/ha de N, 80 kg/ha de P 2 O 5 e 40 kg/ha de K 2 0, sendo a dose 1, 40-80-40 kg/ha de N, P 2 0 5 e K 2 0, respectivamente.Os melhores rendimentos foram alcançados a tensões de umidade do solo menor do que 1,0 bar e as doses 3, 4 e 5 de fertilizantes. Não houve diferença significativa no número de tubérculos entre os tratamentos.Foi observado com aumento na porcentagem de tubérculos maiores nos tratamentos com tensão de umidade de 0,3; 0,6 e 1,0 bar e doses 4 e 5 de fertilizantes. Por outro lado, foi obtida uma alta porcentagem de pequenos tubérculos a altas tensões de umidade (acima de 1,0 bar) e doses 1 e 2 de fertilizantes. INTRODUÇÃOO crescimento das plantas e a produção de tubérculos de batata são intensamente influenciados pelas condições de umidade e fertilidade do solo (ELLISON & JACOB, 1954;BOX et al., 1963). Os estudos para avaliação das variações dos níveis de umidade e fertilidade do solo tem sido conduzidos para condições específicas de solo, clima e variedade, proporcionando resultados.diferentes em relação ao tratamento correspondente aos maiores rendimentos. Assim, BLAKE et al. (1955) não encontraram diferenças significativas na produção de tubérculos, em plantas submetidas a teores mínimos de 67 ou 33% de água disponível no solo. Resultado semelhante foi encontrado por FULTON & MURWIN (1955) entre tratamentos com teores mínimos de 75 e 50% ide água disponível. No entanto, atingindo 25% a produção foi sensivelmenie reduzida. Por outro lado, FUEHRING et al. (1966) verificaram redução no rendimento e tamanho dos tubérculos quando apenas 21% da água disponível havia sido retirada do solo.

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Effect of Soil Moisture Depletion on Crop Yield and Stomatal Infiltration¹

Cited by 17 publications

References 0 publications

Sahel drought: Meteorological or agricultural?

Sahel drought: Meteorological or agricultural?

Leaf infiltration in plant science: old method, new possibilities

A influência da irrigação e adubação no rendimento, tamanho e número de tubérculos de batata (Solanum tuberosum L.)

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Effect of Soil Moisture Depletion on Crop Yield and Stomatal Infiltration1

Cited by 17 publications

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Sahel drought: Meteorological or agricultural?

Sahel drought: Meteorological or agricultural?

Leaf infiltration in plant science: old method, new possibilities

A influência da irrigação e adubação no rendimento, tamanho e número de tubérculos de batata (Solanum tuberosum L.)

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Effect of Soil Moisture Depletion on Crop Yield and Stomatal Infiltration¹