Can anoxic atmospheres protect the quality of maize seeds during storage?

2022 ◽  
Vol 96 ◽  
pp. 101927
Author(s):  
M.B. Abadía ◽  
S. San Martino ◽  
R.E. Bartosik
Keyword(s):  
Maize Seeds

scholarly journals CNSL Concentration and Natural Dyes Effects in Formulation of Botanical Pesticide on Sitophilus zeamais and Maize Seed Quality

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Dian Astriani ◽  
Wafit Dinarto ◽  
Aji Jatmiko
Keyword(s):  
Seed Quality ◽  
Sitophilus Zeamais ◽  
Natural Dyes ◽  
Maize Weevil ◽  
Maize Seeds ◽  
Botanical Pesticide ◽  
Randomized Design ◽  
Efficiency And Effectiveness ◽  
Push Down

Maize is an important commodity in Indonesia and is vulnerable to maize weevil (Sitophilus zeamais) during storage which can cause a 100% yield loss. Chasew Nut Shell Liquid (CNSL) is a botanical pesticide able to control S. zeamais. Increasing CNSL efficiency and effectiveness requires additional adjuvants, such as solvents and dyes. Natural dyes addition is intended to provide seed markers. This study aimed to determine the best CNSL and natural dye formulation to control maize weevil and maintain maize seeds quality during storage. The research was conducted from August to October 2018 at the Agronomy Laboratory, Faculty of Agroindustry, Yogyakarta Mercu Buana University. The research was a single factor consisted of seven treatments with four replications arranged in a completely randomized design (CRD). Treatments were combinations of CNSL concentrations with the addition of natural dyes from suji leaf and teak leaves with one untreated control. The results of the research showed that CNSL as a seed treatment botanical pesticide could cause mortality and suppress S. zeamais populations and maintain the quality of maize seeds during storage for 12 weeks. Treatments with 20% CNSL formulation concentration and the addition of natural dyes both leaf pleomele or teak leaves could cause higher mortality and push down more populations and also could better maintain seed quality than 10 and 0% CNSL formulation concentrations.

scholarly journals Optimization and sensitivity analysis of fast ethanol assay in maize seeds

2019 ◽  
Vol 41 (1) ◽  
pp. 97-107 ◽  
Author(s):  
Damrongvudhi Onwimol ◽  
Thunyapuk Rongsangchaicharean ◽  
Pitipong Thobunluepop ◽  
Tanapon Chaisan ◽  
Wanchai Chanprasert
Keyword(s):  
Quality Assessment ◽  
Ethanol Production ◽  
Seed Quality ◽  
Storage Conditions ◽  
Ambient Conditions ◽  
Maize Seed ◽  
Seed Deterioration ◽  
Maize Seeds ◽  
Hermetic Seal

Abstract: The evaluation of seed deterioration is very important to control the quality of the seeds stored. This study aimed to investigate the potential of fast ethanol assay for seed quality assessment of maize stored under different conditions. The first experiment was to determine the incubating temperature, incubating time, and amount of seed used in the assay. The results showed that the best protocol for the detection of headspace ethanol was incubation of 3 g of maize seed with 20% moisture content (wet basis) in a 20 mL gas chromatography vial at 70 °C for 1.5 h. The assay induced approximately 200-700 µg.L-1 of headspace ethanol, which was sufficient to identify seeds with different vigour levels. In the second experiment, the optimal conditions were used for quality assessment in aged maize seed stored for 12 months under different storage conditions. The increase in the ethanol production of stored maize seed under the controlled conditions (15 °C and 20% RH in the hermetic seal) was lower than under ambient conditions. The ethanol production levels of maize seed samples at the start of storage was significantly lesser than at six months storage (p < 0.05). The test limitations in deteriorated seed with different cultivars and ages will be discussed.

scholarly journals Physiological quality of hybrid maize seeds through respiratory and enzymatic activities

2016 ◽  
Vol 11 (20) ◽  
pp. 1879-1886 ◽  
Author(s):  
Oliveira dos Santos Heloisa ◽  
Vilela Von Pinho Iolanda ◽  
Vilela de Resende Von Pinho Eacute dila ◽  
Maria de Oliveira Pires Raquel ◽  
Fabiana da Silva Valk iacute ria ◽  
...  
Keyword(s):  
Enzymatic Activities ◽  
Maize Seeds ◽  
Physiological Quality ◽  
Hybrid Maize

Effects of ZmLOX-2 Deficiency on Storage Quality of Maize Seeds

2016 ◽  
Author(s):  
Ying Han ◽  
Shou-Jing Zhao ◽  
Yao Sun ◽  
Le Wang ◽  
Jia-Liang Jiang
Keyword(s):  
Storage Quality ◽  
Maize Seeds

scholarly journals Physiological quality of maize seeds produced under soil water deficit conditions

2020 ◽  
Vol 24 (7) ◽  
pp. 451-456
Author(s):  
Fernando H. B. Machado ◽  
Andréia M. S. de S. David ◽  
Silvânio R. dos Santos ◽  
Josiane C. Figueiredo ◽  
Cleisson D. da Silva ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Deficit ◽  
Irrigation Water ◽  
Field Capacity ◽  
Soil Water Deficit ◽  
Maize Hybrids ◽  
Maize Seeds ◽  
Physiological Quality ◽  
Water Depths

ABSTRACT Crop strategies focused on the rational use of water are required in semiarid regions. Thus, the objective of this work was to evaluate the physiological quality of maize seeds produced under soil water deficit conditions. Five irrigation water depth were established, based on the field capacity (100, 85, 70, 55 and 40%), to control the available water for two maize hybrids (2B-587 and DKB-390). A randomized block design was used, with a split-plot arrangement and four repetitions. The plots consisted of irrigation water depths, and the subplots consisted of maize hybrids. The seed water concentration, germination, and vigor were determined after the harvest, using data from first germination counting, seedling emergence, germination speed index, seedling length, and accelerated aging, electrical conductivity, and modified cold tests. The maize hybrid DKB-390 showed better physiological potential under the soil water deficit conditions evaluated. The irrigation water depths lower than 70% of field capacity resulted in decreases in soil water contents and affected negatively the physiological quality of the maize seeds produced.

scholarly journals Quality of maize seeds harvested and husked at high moisture levels

2013 ◽  
Vol 35 (3) ◽  
pp. 276-283 ◽  
Author(s):  
Valquíria de Fátima Ferreira ◽  
João Almir Oliveira ◽  
Thaís Francielle Ferreira ◽  
Leandro Vilela Reis ◽  
Vanessa de Andrade ◽  
...  
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Mechanical Damage ◽  
Accelerated Aging ◽  
Cold Test ◽  
High Moisture ◽  
Maize Seeds ◽  
Seed Moisture ◽  
Seed Health Test

Harvest of maize seeds with high moisture levels has been recommended; nevertheless, after harvest, the ears undergo the process of husking and there is a need to assess the compatibility of these processes. The purpose of this study was to assess the effects of mechanical husking on the quality of maize seeds collected at high moisture levels. Dent BM 3061 hybrid maize seeds, manually collected from the ear, with moisture contents of 45%, 40% and 35%, and a 20/64 round sieve were used. The ears were mechanically husked (CWA machine, 312 rpm), dried in a stationary drier at 35 ⁰C until reaching 22% moisture, followed by drying at 42 ºC until reaching 12%. Then, they underwent shelling, followed by a chemical treatment with Maxin® + K-obiol® + Actellic®. Seed quality was assessed according to the occurrence tests of mechanical damage, first count, germination, seedling emergence, emergence speed index, average emergence time, electrical conductivity, accelerated aging, cold test, and seed health test at every quarter for 9 months. The mechanical husking affects maize seed quality, depending on the degree of seed moisture at harvest and on the material studied. This hybrid's seeds can be collected with seed moisture levels at 40% with the use of mechanical husking.

scholarly journals Effect of processing stages in the physiological quality of maize seeds

2016 ◽  
Vol 10 (6) ◽  
pp. 819-823
Author(s):  
Thiago Alberto Ortiz ◽  
◽  
Marcio Antônio Nicoletti ◽  
Lúcia Sadayo Assari Takahashi ◽  
◽  
...  
Keyword(s):  
Maize Seeds ◽  
Physiological Quality

scholarly journals Biochemical profiling and its role in physiological quality of maize seeds

2018 ◽  
Vol 40 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Daniele Nerling ◽  
Cileide Maria Medeiros Coelho ◽  
Adriele Brümmer
Keyword(s):  
Soluble Sugars ◽  
Accelerated Aging ◽  
Inorganic Phosphorus ◽  
Inbred Lines ◽  
Total Protein Content ◽  
Breeding Programs ◽  
Maize Hybrids ◽  
Maize Seeds ◽  
Physiological Quality

Abstract: Viability and vigor of seeds are physiological attributes influenced by a myriad of factors including the genotype. Biochemical profiling of maize seeds and its correlation with their physiological quality is of crucial importance in breeding programs that the aim is seeds of better quality. The main goal of this study was to analyze the genetic diversity among maize inbred lines and evaluate the biochemical components that have an important role in physiological quality of seeds. The seeds of the inbred lines and hybrids were submitted to viability test, vigor by the accelerated aging and cold tolerance, and biochemical profiling (total protein content, soluble proteins, total phosphorus, phytate, inorganic phosphorus, starch and soluble sugars). The genetic divergence between the inbred lines found, prompt us to conclude that genetic gains may exist in association with physiological quality of maize hybrids. Seeds with higher inorganic phosphorus and soluble sugars presented superior physiological quality than seeds with lower levels of those compounds.

scholarly journals Effect of production environments on storage and physiological quality of maize seed

2021 ◽  
Vol 8 ◽  
pp. 1-15
Author(s):  
Itala Thaísa Padilha Dubal ◽  
Ivan Ricardo Carvalho ◽  
João Roberto Pimentel ◽  
Cristian Troyjack ◽  
Vinícius Jardel Szareski ◽  
...  
Keyword(s):  
Dry Matter ◽  
Seed Quality ◽  
Maize Seed ◽  
Large Format ◽  
Maize Seeds ◽  
Production Environments ◽  
Physiological Quality ◽  
Large Round ◽  
Physiological Characters

Storage is a factor that can affect seed quality as a function of latent damages. The losses that most contribute to the reduction in germination and vigor during storage are those caused by humidity, mechanical and temperature-related, that may interfere with seed quality throughout storage. The aim of this study was evaluating the physiological quality of maize seeds produced in two environments and classified in different formats compared to storage periods. The experiment was carried out in the 2016 harvest in two cultivation environments: Entre-Ijuís, RS and Pelotas, RS. Seeds were stratified by thickness through sieves with oblong holes and stratified into small round, large round, small flat and large flat. Growing environments influence the physiological characteristics of maize seeds. The flat and large format seeds have superior physiological quality for the measured physiological characters. The small and round seeds present lower values for germination, first germination count, emergence speed index, shoot dry matter of emergence seedlings and shoot dry matter of germination seedlings. Corn seeds when stored under controlled conditions remain for long periods without causing decreases in physiological quality.

scholarly journals 441 PB 244 CULTURE OF ISOLATED EMBRYOS OF DETERIORATED MAIZE SEED: A STRATEGY FOR RESCUING GERMPLASM

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 494d-494
Author(s):  
Sheila A. Blackman ◽  
Eric E. Roos
Keyword(s):  
Fungal Growth ◽  
Seed Storage ◽  
Naphthalene Acetic Acid ◽  
Growth Substances ◽  
Maize Seed ◽  
Radicle Growth ◽  
Coleoptile Growth ◽  
Sterile Culture ◽  
Maize Seeds

The low quality of some seed lots received by germplasm repositories such as the National Seed Storage Laboratory can thwart efforts to regenerate seed for storage. This germplasm is in danger of irretrievable loss. The aim of this work is to promote the germination, and hence regeneration, of such low quality seeds through sterile culture of the isolated embryos. Hybrid (B73×LH51) maize seeds were aged 5 y at 32°C and 0.037 g H2O g-1 dry wt. Vigor - but not viability -declined under these conditions. The effects of four factors on growth and germination were systematically examined. These were: seed pretreatments; antibiotics and fungicides; nutrients; and growth substances. Amongst the pretreatments, none surpassed partial hydration of seeds for 24 hr to 0.55 g H2O g-1 dry wt at 25°C prior to embryo dissection. Thiram (2.4 mg mL-1) and kanamycin (50 ug ml1) effectively controlled bacterial and fungal growth with no deleterious effects on growth during culture of the isolated embryos. Exogenous sucrose (optimum 5 % wt/vol) significantly stimulated radicle growth in both deteriorated and non-deteriorated embryos. No other organic or inorganic nutrient stimulated growth. Naphthalene acetic acid did not affect growth while kinetin reduced radicle growth and stimulated coleoptile growth. Gibberellic acid (GA3 at 10-5M) significantly stimulated radicle growth in deteriorated embryos, whereas it promoted coleoptile growth in both deteriorated and non-deteriorated embryos. These data suggest GA or a GA-stimulated process may limit the growth of aged embryos.

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