The critical period for grain yield in chia (Salvia hispanica)

2021 ◽  
Vol 72 (3) ◽  
pp. 213
Author(s):  
Josefina Diez ◽  
Juan Anuch Tiranti ◽  
Víctor O. Sadras ◽  
Martin M. Acreche
Keyword(s):  
Grain Yield ◽  
Critical Period ◽  
Management Practices ◽  
Yield Potential ◽  
Omega 3 ◽  
Degree Days ◽  
Third Order ◽  
Salvia Hispanica ◽  
Growing Seasons ◽  
Salvia Hispanica L

Chia (Salvia hispanica L.) grain is rich in omega-3 and omega-6 fatty acids, which are important for human nutrition and prevention of cardiovascular disease, as well as dietary fibre and quality protein. Demand for chia grain is increasing worldwide driven by the interest in functional food; however, large gaps exist in our understanding of chia physiology. The objective of this study was to determine the critical period for grain yield in chia. A field experiment was conducted under well-watered conditions during four growing seasons, using sequential shading periods of 7–10 days during the season. Yield of unshaded controls varied from 1418 to 2148 kg ha–1 among seasons. Chia’s critical period for grain yield spanned from 550 degree-days before flowering to 250 degree-days after flowering. Seed number fully accounted for reductions in grain yield, with no responses in grain weight to shading. Shading from 550 to 250 degree-days before flowering reduced yield by as much as 40% and this reduction was associated with reductions in the number of verticillasters on second and third order branches. Shading from 50 degree-days before flowering to 250 degree-days after flowering reduced yield by at least 20% and this reduction was associated with reductions in both the number of verticillasters on second and third order branches and the number of grains per verticillaster on branches of all orders. The findings from this study will aid development of management practices to avoid stresses during periods when grain yield would be penalised, and will contribute to breeding for yield potential and stress adaptation by targeting the critical physiological stages.

scholarly journals Phosphorus Doses and Sowing Times Over Agronomic Aspects of Chia

2018 ◽  
Vol 11 (1) ◽  
pp. 174
Author(s):  
Débora Fernanda Del Moura Soares ◽  
Tiago Roque Benetoli da Silva ◽  
Rhaízza Lana Pereira Dusheski ◽  
Géssica Daiane da Silva ◽  
Poliana Tomé Gouveia ◽  
...  
Keyword(s):  
Grain Yield ◽  
Oil Content ◽  
Technical Information ◽  
Dry Mass ◽  
Reproductive Parameters ◽  
Omega 3 ◽  
Salvia Hispanica ◽  
Fiber Protein ◽  
Salvia Hispanica L ◽  
Sowing Season

Chia (Salvia hispanica L.) is an herbaceous annual plant considered a natural source of Omega 3 and 6 fatty acids, fiber, protein and antioxidants. However, the cultivation in Brazil is still recent and existing technical information and recommendations are limited, especially regarding to fertilization and sowing season. The present work had as objective to evaluate the effect doses application of phosphorus and sowing times over productive and reproductive parameters. The experiment was conducted in greenhouse conditions at Fazenda da Universidade Estadual de Maringa, Campus Umuarama. The soil used for the experiment is a typical Distrofic Red Latosoil, with sandy texture. The experimental design was entirely in factorial scheme 4 × 4 with three replications. Treatments were composed of four seeding seasons, at intervals of 15 days between one and another with four doses of P2O5 applied at seeding (0, 40, 80 and 120 kg ha-1, totalizing 48 plots units. It was evaluated the following parameters dry mass of root and shoot, grain yield, mass of 1,000 grains and oil content. There were no significant results both for phosphorus doses as for interaction in any of the variables evaluated. The treatment seeding times (E) differed statistically only for grain yield.

Developmental responses of chia (Salvia hispanica) to variations in thermo-photoperiod: impact on subcomponents of grain yield

2020 ◽  
Vol 71 (2) ◽  
pp. 183
Author(s):  
Jimena Pérez Brandán ◽  
Ramiro N. Curti ◽  
Martin M. Acreche
Keyword(s):  
Grain Yield ◽  
Linear Model ◽  
Dry Weight ◽  
Sowing Date ◽  
Salvia Hispanica ◽  
Yield Improvement ◽  
Growing Seasons ◽  
Salvia Hispanica L ◽  
Developmental Responses ◽  
Orphan Crop

Effect of thermo-photoperiod conditions on pre-flowering phasic development, number of unfolded leaves, verticillaster dry weight at flowering (VDWFL) and grain yield were evaluated for chia (Salvia hispanica L.). The objectives of this study were to: (i) characterise the pre-flowering response of chia to thermo-photoperiod conditions during and pre- and post-inductive subphases; and (ii) determine the relationships between the duration of pre-flowering subphases, the VDWFL and grain yield. Sowing-date experiments were conducted during three consecutive growing seasons with two chia genotypes under non-stressed conditions. Responses to thermo-photoperiod conditions were characterised by fitting a bi-linear model. All pre-flowering subphases showed a quantitative short-day response with a decrease in sensitivity to photoperiod in the later post-inductive subphase. The duration of the pre-inductive subphase was associated with the number of accumulated unfolded leaves, whereas the durations of the post-inductive subphases were not determined by the number of accumulated unfolded leaves. Higher VDWFL was achieved when durations of the pre-flowering subphases increased. In addition, increases in the VDWFL explained most of the variation in grain yield along the thermo-photoperiod conditions. Accordingly, this study suggests that developmental responses of chia and their relationships with VDWFL and grain yield should be taken into account for grain-yield improvement of this orphan crop.

Omega-3- and fibre-enriched chicken nuggets by replacement of chicken skin with chia (Salvia hispanica L.) flour

LWT ◽  
2018 ◽  
Vol 90 ◽  
pp. 283-289 ◽  
Author(s):  
Julliane Carvalho Barros ◽  
Paulo Eduardo Sichetti Munekata ◽  
Manoela Alves Pires ◽  
Isabela Rodrigues ◽  
Oussama Slaoui Andaloussi ◽  
...  
Keyword(s):  
Omega 3 ◽  
Chicken Nuggets ◽  
Salvia Hispanica ◽  
Chicken Skin ◽  
Salvia Hispanica L

scholarly journals Early generation selection strategy for yield and yield components in white oat

2005 ◽  
Vol 62 (4) ◽  
pp. 357-365 ◽  
Author(s):  
Giovani Benin ◽  
Fernando Irajá Félix de Carvalho ◽  
Antônio Costa de Oliveira ◽  
Claudir Lorencetti ◽  
Igor Pires Valério ◽  
...  
Keyword(s):  
Grain Yield ◽  
Indirect Selection ◽  
Grain Weight ◽  
Yield Potential ◽  
High Yield ◽  
Direct Selection ◽  
Selection Strategy ◽  
Breeding Method ◽  
Growing Seasons ◽  
Selection For

Several studies have searched for higher efficiency on plant selection in generations bearing high frequency of heterozygotes. This work aims to compare the response of direct selection for grain yield, indirect selection through average grain weight and combined selection for higher yield potential and average grain weight of oat plants (Avena sativa L.), using the honeycomb breeding method. These strategies were applied in the growing seasons of 2001 and 2002 in F3 and F4 populations, respectively, in the crosses UPF 18 CTC 5, OR 2 <FONT FACE=Symbol>´</FONT> UPF 7 and OR 2 <FONT FACE=Symbol>´</FONT> UPF 18. The ten best genetic combinations obtained for each cross and selection strategy were evaluated in greenhouse yield trials. Selection of plants with higher yield and average grain weight might be performed on early generations with high levels of heterozygosis. The direct selection for grain yield and indirect selection for average grain weight enabled to increase the average of characters under selection. However, genotypes obtained through direct selection presented lower average grain weight and those obtained through the indirect selection presented lower yield potential. Selection strategies must be run simultaneously to combine in only one genotype high yield potential and large grain weight, enabling maximum genetic gain for both characters.

scholarly journals CHIA (Salvia hispanica L.): PROPRIEDADES NUTRICIONAIS E USO NA GASTRONOMIA

Inova Saúde ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Germano Ávila Neto ◽  
Débora Cristina Ruthes ◽  
Marina Lummertz Magenis
Keyword(s):  
Omega 3 ◽  
Salvia Hispanica ◽  
Omega 6 ◽  
Salvia Hispanica L

O objetivo do presente estudo é de descrever os achados sobre os benefícios da semente de chia (Salvia hispânica L.) no consumo humano e sintetizar  seu uso na gastronomia. Esta pesquisa constitui-se de uma revisão bibliográfica exploratória, onde foi realizada uma busca de artigos científicos indexados nas bases de dados científicas  SciELO e PubMed. A literatura pesquisada evidencia que a semente de chia possui propriedades nutricionais benéficas para o ser humano, sendo fonte de proteína, fibras alimentares, ácidos graxos insaturados (ômega 3 e ômega 6) e composto fenólicos. Conclui-se que a chia é um alimento funcional que traz muitos be­nefícios à saúde humana. A literatura trouxe ainda, que seu uso enquanto medicamento fitoterápico em tratamento único de quaisquer patologia merece avaliação e acompanhamento especializado. Observou-se que a indústria alimentícia e a gastronomia vem utilizando a chia em decorrência de suas propriedades organolépticas usando como componente natural  para emulsificação, ligação com a gordura, homogeneização e consistência e textura dos preparos pela capacidade de gelificarão, inclusive em substituição a ovos.Palavras-chave: Salvia, nutrição, revisão, culinária.  

scholarly journals Effect of planting time on the growth and yield of chia (Salvia hispanica L.)

2016 ◽  
Vol 1 (3) ◽  
pp. 502-507 ◽  
Author(s):  
Md Masudul Karim ◽  
Md Ashrafuzzaman ◽  
Md Alamgir Hossain
Keyword(s):  
Seed Yield ◽  
Dry Matter ◽  
Block Design ◽  
Growth And Yield ◽  
Omega 3 ◽  
Contributing Factors ◽  
Salvia Hispanica ◽  
Planting Time ◽  
Salvia Hispanica L ◽  
Physiological Characters

Chia (Salvia hispanica L.) contains the highest level of omega- 3 fatty acid available in any cultivated plant source. The objective of this research was to find out the suitable planting time for chia in Bangladesh and to study the effect of planting time on its growth and yield. An experiment was carried out at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University (BAU), Mymensingh, during the period from November 2013 to July 2014 to study the growth, morpho-physiological yield contributing characters and yield of chia. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The collected data were analyzed statistically and the means were adjudged by DMRT using the statistical computer package program, MSTAT_C. The tallest plant (136 cm), highest number of inflorescence plant–1 (13.67), highest amount of total dry matter (305 g) and highest root length (7.767 cm) were recorded from November planting at harvest. However, leaf area plant–1 (207.2 cm2) and LAI (1.891) had also significantly higher from November planting at 90 days after sowing (DAS) compared to other planting times. November planting further recorded the higher CGR (33.43 g m-2 day-1) at the stage between 76–90 DAS and thereafter they decreased. Higher seed yield (1033 Kg ha–1), husk yield (888 Kg ha–1), seed yield plant-1 (4.773 g), husk yield plant-1 (2.840 g) were also recorded from November planting. In December planting the seed yield, husk yield, seed yield plant-1, husk yield plant-1 were 681 Kg ha–1, 340 Kg ha–1, 2.350g and 0.9467g, respectively. Lower seed yield (159 Kg ha–1), husk yield (166 Kg ha–1), seed yield plant-1 (0.6150 g) and husk yield plant-1 (0.5383 g) were recorded from January planting. Except total dry matter, other morpho-physiological characters, yield and yield contributing factors were less effective in January than other planting time. February and March planting did not produce any fertile spike resulting yield less vegetative growth. These results revealed that, November planting was found outstanding superiority for plant growth, yield and morpho-physiological characters of chia in Bangladesh.Asian J. Med. Biol. Res. December 2015, 1(3): 502-507

Modelling of wheat black point incidence based on meteorological variables in the southern Argentinean Pampas region

2006 ◽  
Vol 57 (11) ◽  
pp. 1151 ◽  
Author(s):  
Ricardo C. Moschini ◽  
M. N. Sisterna ◽  
M. A. Carmona
Keyword(s):  
Critical Period ◽  
Selection Process ◽  
Disease Incidence ◽  
Base Temperature ◽  
Degree Days ◽  
Precipitation Frequency ◽  
Black Point ◽  
Growing Seasons ◽  
Regression Techniques ◽  
Pampas Region

Studies were undertaken during 3 growing seasons at several locations on the Argentinean Pampas to investigate the relationships between environmental factors and black point incidence, and to develop predictive models. The strongest associations were observed throughout the critical period starting at 543 degree-days from heading to 861 degree-days (base temperature = 0°C). After a selection process, the best regression equation was: PI % = –6.50 + 0.07 DPrDDTd + 0.23 DRH, where PI is predicted disease incidence, DPrDDTd is a product of days with precipitation and the total degree-day accumulation of mean daily temperatures greater than 17°C (DDTd), and DRH is the total days with relative humidity above 62%. The equation accounted for 87% of the total variance in the disease incidence. Using logistic regression techniques, a model including precipitation frequency and DDTd could satisfactorily explain the probability of occurrence of severe, moderate, and light epidemics.

Optimising grain yield and grazing potential of crops across Australia’s high-rainfall zone: a simulation analysis. 1. Wheat

2015 ◽  
Vol 66 (4) ◽  
pp. 332 ◽  
Author(s):  
Lindsay W. Bell ◽  
Julianne M. Lilley ◽  
James R. Hunt ◽  
John A. Kirkegaard
Keyword(s):  
Grain Yield ◽  
Simulation Analysis ◽  
Sowing Date ◽  
Yield Potential ◽  
N Availability ◽  
Dual Purpose ◽  
High Rainfall ◽  
Growing Seasons ◽  
South West ◽  
Crop Density

Interest is growing in the potential to expand cropping into Australia’s high-rainfall zone (HRZ). Dual-purpose crops are suited to the longer growing seasons in these environments to provide both early grazing for livestock and later regrow to produce grain. Grain yield and grazing potential of wheats of four different maturity types were simulated over 50 years at 13 locations across Australia’s HRZ, and sowing date, nitrogen (N) availability and crop density effects were explored. Potential grazing days on wheat were obtained by simulating sheep grazing crops to Zadoks growth stage Z30 at 25 dry sheep equivalents (DSE)/ha. Optimal sowing dates for each maturity type at each location were matched to the flowering window during which risk of frost and heat stress was lowest. Overall, we found significant national potential for dual-purpose use of winter wheat cultivars across Australia’s HRZ, with opportunities identified in all regions. Simulated mean wheat yields exceeded 6 t/ha at most locations, with highest mean grain yields (8–10 t/ha) in southern Victoria, and lower yields (5–7 t/ha) in the south-west of Western Australia (WA) and central and northern New South Wales (NSW). Highest grazing days were from winter cultivars sown early (March–mid-April), which could provide 1700–3000 DSE-days/ha of grazing across HRZ locations; this was 2–3 times higher than could be obtained from grazing spring cultivars (200–800 DSE-days/ha). Sowing date was critical to maximise both grazing and grain yield potential from winter cultivars; each 1-week delay in sowing after 8 March reduced grazing by 200–250 DSE-days/ha and grain yield by 0.45 t/ha. However, in Mediterranean climates, a lower frequency of early sowing opportunities before mid-April (<30% of years) is likely to limit the potential to use winter cultivars. Prospects to graze shorter season spring cultivars that fit later sowing windows require further examination in south-west WA, the slopes of NSW and southern Queensland.

scholarly journals Effect of cultivar, crop management, location and growing season on the grain yield of triticale

2019 ◽  
Vol 56 (2) ◽  
pp. 239-252 ◽  
Author(s):  
Adriana Derejko ◽  
Marcin Studnicki
Keyword(s):  
Grain Yield ◽  
Environmental Conditions ◽  
Growing Season ◽  
Good Health ◽  
Yield Potential ◽  
High Yield ◽  
Yield Response ◽  
Biotic And Abiotic Stress ◽  
Growing Seasons ◽  
Important Region

SummaryTriticale (Triticosecale Wittmack) is obtained through the crossing of wheat (Triticum ssp.) and rye (Secale cereale L.) and is characterized by high yield potential, good health and grain value, and high tolerance to biotic and abiotic stress. Poland is a very important region for progress in triticale breeding, since it is home to most cultivars, and numerous genetic studies on triticale have been carried out. Despite the tremendous interest in triticale among both breeders and researchers, there are no studies assessing the adaptation of cultivars to environmental conditions across growing seasons. This study was conducted to investigate the influence of cultivar, management, location and growing season on grain yield. At the same time, this approach provides a new way to determine whether there is any dependency between the eight seasons, and to find the cause of the yield response to environmental conditions in a given growing season.

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