scholarly journals PHYSIOLOGICAL QUALITY IN SEEDS FROM HAPLOID INDUCERS IN MAIZE

2022 ◽  
Vol 20 ◽  
Author(s):  
ANA CAROLINA APARECIDA DA SILVA ◽  
ROBERTO DOS SANTOS TRINDADE ◽  
BRUNA LOPES MARIZ ◽  
MARIANA RODRIGUES RIBEIRO ◽  
DEA ALÉCIA MARTINS NETTO ◽  
...  
Keyword(s):  
Physiological Quality

Physiological quality of soybean seeds coming from cultivation with application of biostimulant

2017 ◽  
Vol 11 (02) ◽  
pp. 162-168
Author(s):  
Amanda Ribeiro Peres ◽  
◽  
Claudinei Kappes ◽  
José Roberto Portugal ◽  
Marco Eustáquio de Sá ◽  
...  
Keyword(s):  
Soybean Seeds ◽  
Physiological Quality

scholarly journals Artificial Regeneration of Major Oak (Quercus) Species in the Eastern United States—A Review of the Literature

2008 ◽  
Vol 54 (1) ◽  
pp. 77-106 ◽  
Author(s):  
Daniel C. Dey ◽  
Douglass Jacobs ◽  
Ken McNabb ◽  
Gary Miller ◽  
V. Baldwin ◽  
...  
Keyword(s):  
United States ◽  
Seedling Survival ◽  
Early Years ◽  
Eastern United States ◽  
Oak Regeneration ◽  
Artificial Regeneration ◽  
Quercus Species ◽  
Physiological Quality ◽  
Oak Tree ◽  
Guidelines And Recommendations

Abstract Although natural regeneration is often the best method for establishing new oak (Quercus spp.) stands, there are increasingly more situations in which high potential for oak regeneration failure dictates the use of artificial regeneration including direct seeding and planting seedlings. Additionally, afforestation planting programs frequently incorporate oak species. Artificial regeneration of oak stands is challenging for numerous reasons. In this article we synthesize the current state of knowledge regarding growing and planting the major oak species in the eastern United States, point out critical research gaps, and provide some general growing, planting, and stand tending guidelines and recommendations. Adequate site preparation, careful planting of healthy, genetically adapted seed or seedlings of high morphological and physiological quality, and subsequent control of competing vegetation and browse damage are necessary actions to assure regeneration success. Oak seedling survival in the early years after planting or seeding is a poor indicator of regeneration success. Successful regeneration may be defined as having a desired proportion of the oak planting stock reach dominant/codominant status in the stand. The costs of all activities required to produce a successful oak tree in the future stand should be considered in economic comparison of alternative prescriptions for oak regeneration.

Effect of intermittent drying on the energy consumption and physiological quality of soybean seeds

2020 ◽  
Author(s):  
Camila Andressa Bissaro ◽  
Rafael Oliveira Defendi ◽  
Lucas Caiubi Pereira ◽  
Alessandro Lucca Braccini ◽  
Diogo Francisco Rossoni ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Soybean Seeds ◽  
Physiological Quality

scholarly journals Effects of different drying rates on the physiological quality of Coffea canephora Pierre seeds

2005 ◽  
Vol 17 (2) ◽  
pp. 199-205 ◽  
Author(s):  
Sttela Dellyzete Veiga Franco da Rosa ◽  
Delacyr da Silva Brandão Júnior ◽  
Édila Vilela de Resende Von Pinho ◽  
André Delly Veiga ◽  
Luiz Hildebrando de Castro e Silva
Keyword(s):  
Water Content ◽  
Storage Temperature ◽  
Removal Rate ◽  
Coffea Canephora ◽  
Development Stage ◽  
Seed Vigor ◽  
Drying Rate ◽  
Physiological Quality ◽  
Drying Rates

Desiccation tolerance in seeds depends on the species, development stage and drying conditions, especially the water removal rate. Coffea seeds are considered of intermediate performance, because they tolerate relative dehydration compared to orthodox seeds and are sensitive to low temperatures. The objective of this study was to verify the effect of different drying rates on the viability and storability of Coffea canephora seeds. A complete randomized experimental design was used, in a factorial 3 x 5 x 2 design, with three drying rates (fast, intermediate and slow), five final mean water contents after drying (51, 42, 33, 22 and 15 %) and two storage temperatures (10 and 20°C). The germination and seed vigor assessments, using radicle protrusion, cotyledon leaf opening, seedling emergence and emergence speed index, were performed shortly after drying and after two and four months storage. It was observed that with reduction in the water content there was reduction in the germination values and seed vigor, for all the drying rates. The greatest reductions in physiological quality occurred when the seeds were dried quickly and the best results were obtained at the intermediate drying rate. There was an effect of drying rate and storage temperature on the physiological quality of the seeds, and lower germination and vigor values were observed in seeds with lower water content stored at 20°C. C. canephora seeds were tolerant to desiccation down to 15 % water content and can be stored for four months at 10°C. A temperature of 20ºC can be used to store C. canephora seeds, as long as the water content is not reduced to values below 22 % water content.

β-Amyrin Synthase1 Controls the Accumulation of the Major Saponins Present in Pea (Pisum sativum)

2021 ◽  
Author(s):  
Vanessa Vernoud ◽  
Ludivine Lebeigle ◽  
Jocelyn Munier ◽  
Julie Marais ◽  
Myriam Sanchez ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Bitter Taste ◽  
Crop Improvement ◽  
Functional Protein ◽  
Saponin Biosynthesis ◽  
Physiological Quality ◽  
Pea Seeds ◽  
Identification And Characterization ◽  
Pea Seed

Abstract The use of pulses as ingredients for the production of food products rich in plant proteins is increasing. However, protein fractions prepared from pea or other pulses contain significant amounts of saponins, glycosylated triterpenes which can impart an undesirable bitter taste when used as an ingredient in foodstuffs. In this paper, we describe the identification and characterization of a gene involved in saponin biosynthesis during pea seed development, by screening mutants obtained from two Pisum sativum TILLING (Targeting Induced Local Lesions in Genomes) populations in two different genetic backgrounds. The mutations studied are located in a gene designated PsBAS1 (β-amyrin synthase1) which is highly expressed in maturing pea seeds and which encodes a protein previously shown to correspond to an active β-amyrin synthase. The first allele is a nonsense mutation, while the second mutation is located in a splice site and gives rise to a mis-spliced transcript encoding a truncated, non-functional protein. The homozygous mutant seeds accumulated virtually no saponin without affecting seed nutritional or physiological quality. Interestingly, BAS1 appears to control saponin accumulation in all other tissues of the plant examined. These lines represent a first step in the development of pea varieties lacking bitterness off-flavours in their seeds. Our work also shows that TILLING populations in different genetic backgrounds represent valuable genetic resources for both crop improvement and functional genomics.

scholarly journals Effects of Macronutrients in the Physiological Quality of Soybean Seeds

2018 ◽  
Vol 10 (5) ◽  
pp. 312
Author(s):  
Geliandro Anhaia Rigo ◽  
Luis Osmar Braga Schuch ◽  
Willian Silva Barros ◽  
Rodrigo Lamaison de Vargas ◽  
Vinícius Jardel Szareski ◽  
...  
Keyword(s):  
Graduate Program ◽  
Plant Tissues ◽  
Soybean Seeds ◽  
Rio Grande Do Sul ◽  
Genetic Characteristics ◽  
Physiological Quality ◽  
High Concentrations ◽  
Nitrogen Phosphorus

The aim of this work was to correlate macronutrient content of soybean seeds to physiological quality of different cultivars. The work was developed in the Federal University of Pelotas, in the facilities of the Seed Science and Technology Graduate Program. The experimental design was randomized blocks in arranged in four replicates. The following soybean cultivars were used: BMX Apolo RR (12 lots), BMX Ativa RR (13 lots), BMX Energia RR (26 lots), BMX Força RR (24 lots), BMX Impacto RR (35 lots), BMX Magna RR (16 lots), BMX Turbo RR (44 lots), BMX Potência RR (82 lots) and NA 5909 RR (28 lots), with seeds produced in northwest Rio Grande do Sul. The determination of nutritional contents found in plant tissues of soybean seeds, were measured: Nitrogen (N), Phosphorus (P), Potassium (K), Magnesium (Mg), Calcium (Ca), Sulfur (S). The macronutrient contents of the seeds vary according to genetic characteristics of the cultivars, with higher oscillations of nitrogen, phosphorus, magnesium and sulfur contents present in soybean seeds. Potassium and calcium are defined as the most stable nutrients for the cultivars and seed lots analyzed. High concentrations of nitrogen, phosphorus and calcium are determinants for the physiological quality of soybean seeds.

scholarly journals Physiological quality and gene expression related to heat-resistant proteins at different stages of development of maize seeds

2013 ◽  
Vol 12 (3) ◽  
pp. 3630-3642 ◽  
Author(s):  
T. Andrade ◽  
E.V.R. Von Pinho ◽  
R.G. Von Pinho ◽  
G.E. Oliveira ◽  
V. Andrade ◽  
...  
Keyword(s):  
Gene Expression ◽  
Stages Of Development ◽  
Heat Resistant ◽  
Maize Seeds ◽  
Physiological Quality

Identification of Maize Insects and Fungi Affecting Sanitary and Physiological Quality of Stored maize Grains in Central Cote d'Ivoire

2021 ◽  
Vol 13 (1) ◽  
pp. 36-45
Author(s):  
Mah A. Kakou ◽  
Nahoulé A. Adja ◽  
Félicia Johnson ◽  
Adjoa M.J. Kouad ◽  
Eric-Olivier Tienebo ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Physiological Quality

scholarly journals Genetic diversity for physiological quality of seeds from corn (Zea mays L.) intervarietal crossbreeds

2013 ◽  
Vol 35 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Daniele Nerling ◽  
Cileide Maria Medeiros Coelho ◽  
Rubens Onofre Nodari
Keyword(s):  
Genetic Diversity ◽  
Zea Mays L ◽  
Accelerated Aging ◽  
Genetic Contribution ◽  
Percentage Germination ◽  
Canonical Variables ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality

The physiological quality is based on the genotype and may be accompanied since the first stages of selection through the study of genetic diversity. The purpose of this study was to evaluate the parental genetic contribution in the seed physiological quality in corn intervarietal crossbreeds. The intervarietal crossbreeds were performed using landraces genotypes, open pollinated varieties and commercial hybrids. The seeds obtained from the crossbreed, their equivalents and parentals were evaluated regarding their water percentage, germination, germination speed rate, accelerated aging, field emergence and electrical conductivity. The seeds obtained in the crossbreed are viable and vivid with heterosis when compared with the parentals. The accelerated aging test was more effective for selecting the strongest genotypes. The canonical variables were useful to group the genotypes that presented similar physiological characteristics. The genotypes MPA 01 x Pixurum 05, MPA 01 x AS1565, MPA 01 x SJC5886, SJC5886 x Pixurum 05 and Fundacep 35 x SCS 154 Fortuna were the best crossbreeds regarding the production of better physiological quality seeds.

scholarly journals Genetic diversity in soybean seed quality under different storage conditions

2017 ◽  
Vol 38 (1) ◽  
pp. 57
Author(s):  
Daniele Piano Rosa ◽  
Danúbia Aparecida Costa Nobre ◽  
Diego Santos Oliveira ◽  
Francisco Charles dos Santos Silva ◽  
André Ricardo Gomes Bezerra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Seed Quality ◽  
Soybean Seed ◽  
High Standard ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Soybean Cultivars ◽  
High Germination ◽  
Physiological Quality ◽  
Almost All

This study aimed to assess the effect of genetic diversity on physiological quality of soybean seeds stored in cold chamber and under environmental conditions. Ten cultivars were assessed in a randomized factorial design (2x10). Factor 1 corresponded to two storage conditions and factor 2 to ten soybean cultivars, with four replications. The evaluated variables were total germination (G%), first count of germination (F%), percentage of abnormal seedlings (AS%), germination speed index (GSI), water content (WC), electrical conductivity (EC), dry matter of seedlings (DMS) and length of seedlings (LS). Data underwent ANOVA, followed by Scott Knott test, as well as multivariate analysis of genetic diversity. The results showed a higher physiological quality for seeds under cold storage. Half of the cultivars (FPS Júpiter, FPS Urano, FPS Antares, FPS Netuno and CD 250) presented high germination rates and seed vigor, being thus indicated as high-standard materials for further breeding programs. Besides that, storage environment had influence on the clustering of soybean cultivars. Moreover, cultivars had genetic dissimilarity for almost all assessed traits as G%, GSI, F%, AS%, EC, DMS and LS.

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