The effect of traditional storage methods on germination and vigour of maize (Zea mays L.) from northern KwaZulu-Natal and southern Mozambique

Govender, Veloshinie; Aveling, T.A.S.; Kritzinger, Quenton

doi:10.1016/j.sajb.2007.10.006

Cited by 36 publications

(24 citation statements)

References 14 publications

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“…The lowest viability was seen in soybean CSOSU.1 inoculated treatments (Table 5). Seed viability of susceptible soybean showed significant differences between those from plants inoculated with F. graminearum and both controls, from greenhouse and natural field conditions, according to Govender;Aveling;Kritzinger (2008). Plants inoculated with Fg1; Fg2 and Fg3 isolate produced seeds with the lowest viability values (Table 5).…”

Section: Resultsmentioning

confidence: 99%

EFFECT OF Fusarium graminearum Schwabe ON PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS AND WHEAT CARYOPSIS IN ARGENTINA

Peruzzo

Pioli²,

Salinas³

2015

Rev. Caatinga

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-F. graminearum is the main causal agent of Head blight in cereals in Argentina. This is a disease that develops during the host floral state. When the reproductive structures in the host are invaded, grains may be shriveled and reduced in weight, causing a decrease in yield. Physiological diagnostic techniques on seeds detect the damages produced by this fungus could be used to take decisions related to the quality of seed lots. The objective of this study was to evaluate the possible physiological damage caused by F. graminearum isolates in soybean seeds and wheat caryopsis. Seeds and caryopsis were obtained from plants exposed to fungal infection and were evaluated under two situations: artificial inoculations under greenhouse conditions and natural infection from fields of Santa Fe Province (33°43'22''S; 62°14'46''W). Seed weight, topographical tetrazolium test, standard germination test, electrical conductivity test and X-ray test were performed in soybean seeds and wheat caryopsis from each treatment. Differential behaviors of F. graminearum strains in susceptible soybean and wheat cultivars under greenhouse conditions revealed specific interactions among soybean and wheat genotypes with this fungus. F. graminearum infection in susceptible cultivars under greenhouse conditions produced a significant decrease in the physiological quality of soybean seed and wheat caryopsis. These behaviors were not detected under field conditions in the evaluated locations. All seed quality tests used in this experiment were useful to show differences in infection in soybean and wheat independently of F. graminearum infection.Keywords: X-Ray. Tetrazolium. Germination. Electric conductivity. Pampean region. EFEITO DE Fusarium graminearum Schwabe NA QUALIDADE FISIOLÓGICA DE SEMENTES DESOJA E CARIOPSE DE TRIGO NA ARGENTINA RESUMO -F. graminearum é o principal agente causal da giberela em cereais na Argentina. É uma doença que se desenvolve durante o estado floral de hospedeiro. Quando as estruturas reprodutivas no hospedeiro são colonizadas, os grãos podem ser enrugados e mostrar reduções de peso, causando diminuição no rendimento. Técnicas de diagnóstico fisiológico em sementes podem detectar os danos produzidos por este fungo e pode ser usada para tomar decisões sobre a qualidade dos lotes. O objetivo deste estudo foi avaliar possíveis danos fisiológicos causados por F. graminearum em sementes de soja e cariopses de trigo. As sementes e cariopses foram obtidas a partir de plantas expostas a infecção fúngica e foram avaliadas em duas situações: inoculação artificial em casa de vegetação e infecção natural em campos da Província de Santa Fé (33°43'22''S; 62°14'46''O). Determinou-se o peso da semente e realizou-se os testes de tetrazólio, germinação, condutividade elétrica e raios-X em sementes de soja e cariopses de trigo para cada tratamento. Comportamentos diferenciais de cepas de F. graminearum em cultivares suscetíveis de soja e trigo sob condições de casa de vegetação revelou interações específicas entre cultivar...

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Section: Resultsmentioning

confidence: 99%

EFFECT OF Fusarium graminearum Schwabe ON PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS AND WHEAT CARYOPSIS IN ARGENTINA

Peruzzo

Pioli²,

Salinas³

2015

Rev. Caatinga

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“…At different intervals, the seeds were blotted dry, weighed and returned to the wet filter paper. The percentage imbibition was calculated as: Imbibition (%) = (weight of seeds after imbibition − initial weight of seeds)/initial weight of seeds ×100 (Govender et al. 2008).…”

Section: Methodsmentioning

confidence: 99%

Smoke‐Water and a Smoke‐Isolated Butenolide Improve Germination and Seedling Vigour of Eragrostis tef (Zucc.) Trotter under High Temperature and Low Osmotic Potential

Ghebrehiwot

Kulkarni

Kirkman

et al. 2008

J Agronomy Crop Science

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The seeds of Eragrostis tef are often exposed to high temperatures and low water availability during unfavourable climatic conditions. This affects germination and seedling stand establishment of the crop. Smoke is currently widely studied for its stimulatory role in seed germination. The effect of smoke‐water and a smoke‐isolated butenolide was investigated on E. tef seed germination and seedling growth at different temperatures, light conditions and osmotic potentials. Treating E. tef seeds with smoke‐water and butenolide increased the percentage germination relative to the control at all tested temperatures. These treatments significantly improved seedling length and the vigour index at 25, 30, 35 and 40 and 30/15 °C. Smoke‐water and butenolide increased percentage imbibition from high to low osmotic potential. In comparison with the control, smoke‐water‐ and butenolide‐treated seeds of E. tef showed higher percentage germination with decreasing osmotic potential. Smoke‐water treatment exhibited significantly longer and more vigorous seedlings than the control between 0 and −0.30 MPa osmotic potential. The findings of this study suggest the possibility of using smoke treatments for minimizing E. tef seedling losses at elevated temperatures and water stress.

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“…Currently, TTC reduction assay is a common test for evaluating the seed viability of various agricultural plants. The germination and vigor of maize seeds evaluated by TTC test correlated with the results of conductivity test (solute leakage) (Govender et al 2008). Besides, TTC test was used for viability evaluation of pollen (Kelen and Demirtas 2003), tissue (Ibrahim and Quick 2001;Richter et al 2007), and cell suspension (Mikuła et al 2006) in plants.…”

Section: Introductionmentioning

confidence: 93%

Evaluation and improvement of spectrophotometric assays of TTC reduction: maize (Zea mays) embryo as an example

2010

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The triphenyl tetrazolium chloride (TTC) reduction assay was evaluated and improved with maize seed (Zea mays cv. Zhengdan958). The reduced TTC in embryo was extracted with three kinds of organic solvents: trichloroacetic acid (TCA)/acetone, ethanol, and acetone. The absorbance spectra of the three extracts were similar, with a maximum at 485 nm. The efficiency of TCA/acetone in extracting the reduced TTC was higher than that of acetone and ethanol. A negative correlation between TTC reduction and malondialdehyde content in embryo was demonstrated. The TCA/acetone extraction may be used as a routine protocol for TTC reduction assay of seed vigor in cereal (e.g. maize, rice, wheat and barley) seeds.

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The effect of traditional storage methods on germination and vigour of maize (Zea mays L.) from northern KwaZulu-Natal and southern Mozambique

Cited by 36 publications

References 14 publications

EFFECT OF Fusarium graminearum Schwabe ON PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS AND WHEAT CARYOPSIS IN ARGENTINA

EFFECT OF Fusarium graminearum Schwabe ON PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS AND WHEAT CARYOPSIS IN ARGENTINA

Smoke‐Water and a Smoke‐Isolated Butenolide Improve Germination and Seedling Vigour of Eragrostis tef (Zucc.) Trotter under High Temperature and Low Osmotic Potential

Evaluation and improvement of spectrophotometric assays of TTC reduction: maize (Zea mays) embryo as an example

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