Hydropriming as inducer of salinity tolerance in sunflower seeds

ABSTRACT Sunflower is a species with multiple potentialities and its yield can be affected by the presence of soluble salts in the soil, which is common in arid, semi-arid and irrigated regions. The objective of this study was to evaluate the effect of hydropriming as inducer of salinity tolerance in seeds and seedlings of sunflower, hybrid MG305CP. The germination tests were set with four replicates of 50 seeds per treatment, maintained in germinator at 30 ºC for ten days. To simulate salinity, sodium chloride diluted in distilled water was used at electrical conductivities of 0 (control), 4, 8, 12 and 16 dS m-1. On the tenth day, the number of normal seedlings was counted and the length and dry matter of shoots and roots were determined. Seedling fresh matter was used to determine the contents of total chlorophyll, total soluble sugars and proline. The experimental design was completely randomized, in a 2 x 5 factorial scheme (with and without hydropriming and five levels of salinity). Hydroprimed sunflower seeds showed greater vigor expression, with higher number of normal seedlings and faster germination.

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Age-Related Changes of Some Chemical Components in the Leaves of Oriental Beech (Fagus orientalis Lipsky.)

South-east European forestry ◽

10.15177/seefor.19-15 ◽

2019 ◽

Vol 10 (2) ◽

pp. 117-124

Author(s):

Nezahat Turfan ◽

Sezgin Ayan ◽

Esra Nurten Yer ◽

Halil Barış Özel

Keyword(s):

Phenolic Compounds ◽

Soluble Protein ◽

Soluble Sugars ◽

Total Soluble Protein ◽

Total Phenolic ◽

Total Chlorophyll ◽

H2o2 Concentration ◽

Total Soluble Sugars ◽

Oriental Beech ◽

Different Ages

Background and Purpose: This study presents the analysis of photosynthetic pigments, proline, total soluble protein, total amino acids, glucose, sucrose, total soluble sugars, total amount of phenolic compounds and flavonoids, malondialdehyde (MDA) and hydrogen peroxide (H2O2) concentration in the leaf samples collected from oriental beech trees, which are naturally spread in Kastamonu Province, Turkey, with differing ages, enzyme activities of ascorbate peroxidase (APX), catalase (CAT) and superoxide dismutase (SOD). Material and Methods: The research was carried out on oriental beech trees (Fagus orientalis L.) of different ages located at 1300 m high elevation in Ahlat Village of Kastamonu Province, Turkey. Oriental beech trees of different ages (≥25, ≥50, ≥100, ≥200 and ≥600 years-old) constituted the material of this study. In leaf samples taken from trees of different ages, photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll and carotenoid), proline, total soluble protein, total amino acid, glucose, sucrose, total soluble sugars, the amount of total phenolic compounds and flavonoids, MDA, H2O2 concentration, enzyme activities of APX, CAT and SOD, as well as the relationship between the total content of C, N and H elements and the tree ages were studied. Results: As a result of the research conducted, significant differences were determined in terms of chlorophyll, total phenolic compound, flavonoid, glucose, amounts of sucrose, nitrogenous compounds, proline, total soluble protein, MDA, H 2O2 concentrations, and the activities of APX, CAT and SOD in the leaves of oriental beech trees with differing ages. The highest content of chlorophyll a was found to be in the youngest age group of ≥25 years. Total chlorophyll is low in young trees and high in middle-aged, old and very old trees. According to the results obtained, it was concluded that the MDA and H2O2 concentrations in the trees did not vary depending on the age of trees only, but also on the genotype, environmental conditions and metabolic activities. It was concluded that the fact that the total chlorophyll, phenolic compounds and sucrose content in oriental beech trees are high and that MDA content is low could have an influence on the long life of ≥600 years-old oriental beech trees. Conclusions: The activity of photosynthesis is related to leaf characteristics more than the age of trees.

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Production of lettuce with brackish water in NFT hydroponic system

Semina Ciências Agrárias ◽

10.5433/1679-0359.2018v39n3p947 ◽

2018 ◽

Vol 39 (3) ◽

pp. 947 ◽

Cited By ~ 2

Author(s):

Jucicléia Soares da Silva ◽

Vital Pedro da Silva Paz ◽

Tales Miler Soares ◽

Willian Fernandes de Almeida ◽

Joseane Pereira Fernandes

Keyword(s):

Dry Matter ◽

Fresh Matter ◽

Reject Water ◽

Water Demands ◽

Nutrient Film Technique ◽

Matter Production ◽

Local Water ◽

Groundwater Reserves ◽

Semi Arid Region ◽

Semi Arid

Groundwater reserves in the semi-arid regions, which are mostly brackish, could be used to meet local water demands. Hydroponic cultivation is an alternative of rational use of water. Thus, the objective of this work was to evaluate the technical feasibility of using brackish groundwater in the semi-arid region of Bahia and Recôncavo of Bahia for hydroponic production of curly lettuce cv. ‘Verônica’ and purple lettuce cv. ‘Quatro Estações’. The experiment was conducted in a greenhouse in the city of Cruz das Almas, Bahia State, in a randomized block experimental design, composed of seven treatments [T1- public-supply water; T2- water from the well of UFRB; T3- reject water from the well of Cruz das Almas; T4- water from the well of Sapeaçu; T5- reject water from the well of Sapeaçu; T6- reject water from the well of Conceição do Coité and T7- artificially salinated water (NaCl)] and six replicates in an experimental hydroponic structure using the nutrient film technique (NFT). The following variables were analyzed: number of leaves, shoot fresh matter, shoot length, root length, shoot dry matter, and root dry matter. Relative shoot dry matter production in curly lettuce increased by 1, 5, and 2% in the treatments T2, T3, and T4, respectively, whereas in purple lettuce, the increments were 10, 1, and 20%, respectively, for the same treatments. The use of brackish groundwater from the deep tubular wells of the Federal University of Recôncavo da Bahia and Sapeaçu and desalination reject water from the tubular well of Cruz das Almas proved to be technically feasible for hydroponic lettuce production.

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Salicylic acid ameliorates salinity tolerance in maize by regulation of phytohormones and osmolytes

Plant Soil and Environment ◽

10.17221/441/2020-pse ◽

2020 ◽

Vol 66 (No. 10) ◽

pp. 533-541

Author(s):

Abeer Elhakem

Keyword(s):

Salicylic Acid ◽

Salinity Tolerance ◽

Negative Impact ◽

Soluble Sugars ◽

Nacl Stress ◽

Total Soluble Protein ◽

Organic Osmolytes ◽

Total Soluble Sugars ◽

Defence Responses ◽

Water And Soil Pollution

Salinity is one of the most widespread stresses responsible for water and soil pollution across the globe. Salicylic acid (SA) has a major role in defence responses against various abiotic stresses. In the current study, SA (0.05 mmol) influences were evaluated in mitigation of the negative impact of salinity (40 and 80 mmol NaCl) in the maize plant. NaCl stress-induced significant accumulation of organic osmolytes (total soluble sugars (TSS), total soluble protein (TSP), and proline) by 35.6, 66.2, and 89.2%, respectively, with 80 mmol NaCl. In addition, salinity is also responsible for the elevated accumulation of inorganic osmolytes (Na+ and Na+/K+ ratio) by 202.4% and 398.8%, respectively, and for the reduction in the K+ and Ca2+ levels by 48.6% and 58.9%, respectively, with 80 mmol NaCl. Moreover, salinity stress reduced phytohormones (indoleacetic acid (IAA) and gibberellic acid (GA3)) by 48.8% and 59.8%, respectively, with 80 mmol NaCl; however, abscisic acid (ABA) was increased by 340.5% with 80 mmol NaCl. Otherwise, SA application caused an additional enhancement in TSS, TSP, proline, K+, Ca2+, IAA, and GA3 contents but decreased the Na+, Na+/K+ ratio, and ABA to an appreciable level. In conclusion, SA pre-soaking mitigates the negative impact of NaCl toxicity in maize through the regulation of phytochromes and various organic and inorganic osmolytes, which may ameliorate salinity tolerance in maize.

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Total Soluble Sugars Dynamics in Coffee Fruits Under Development

Journal of Agricultural Science ◽

10.5539/jas.v12n5p94 ◽

2020 ◽

Vol 12 (5) ◽

pp. 94

Author(s):

Davi Bernardes Moscardini ◽

Laís Teles de Souza ◽

Paulo Mazzafera ◽

José Laércio Favarin

Keyword(s):

Dry Matter ◽

Soluble Sugars ◽

Dry Mass ◽

Fruit Growth ◽

Production Cycle ◽

Mature Trees ◽

Total Soluble Sugars ◽

Total Sugars ◽

Carbohydrate Dynamics ◽

Coffea Arabica L

Coffee (Coffea arabica L.) fruits are stronger sinks and is known its development may be more than four times higher than that allocated to branch growth during the annual production cycle. However, the origin and carbohydrates distribution used during the fruiting development are not yet known. Four assimilates sources are potentially available for fruit growth: (i) the photoassimilates produced by the fruit itself, (ii) branch reserves, (iii) leaf reserves and (iv) the current photosynthesis that occurs during fruit growth. To better understand the carbohydrate dynamics, its allocation in coffee fruits and to evaluate fruit dependence on other tree parts at the bean-filling stage, four carbohydrates sources were imposed in fully mature trees in Northeast of Sao Paulo State, Brazil. Variables such as total sugar and dry mass were analyzed. We observed that leaves from the nodes are very important for fruit development. Comparison between fruits with leaves and fruits without leaves clearly revealed its influence on dry matter and total sugars accumulation in the fruits. The removal or covering of leaves near fruits limits the development of fruit.

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Morphometric and productive characteristics of sorghum genotypes for forage production in the Brazilian semi-arid

Revista Brasileira de Saúde e Produção Animal ◽

10.1590/s1519-99402018000300003 ◽

2018 ◽

Vol 19 (3) ◽

pp. 256-267

Author(s):

Alberto Jefferson da Silva Macêdo ◽

João Paulo de Farias Ramos ◽

Edson Mauro Santos ◽

Wandrick Hauss de Sousa ◽

Flávio Gomes de Oliveira ◽

...

Keyword(s):

Dry Matter ◽

Block Design ◽

Forage Production ◽

Fresh Matter ◽

Matter Production ◽

Dead Material ◽

Water Accumulation ◽

Sorghum Genotypes ◽

Semi Arid Region ◽

Semi Arid

SUMMARY This study agronomically evaluated 14 sorghum genotypes in the Brazilian semi-arid region. A randomized complete block design, with the treatments represented by sorghum genotypes and three replicates, was used. The dry matter (DM), plant height (PH), number of live leaves, fresh matter production (FMP), dry matter production (DMP), leaf blade (LB), stem, panicle (PAN), dead material, water accumulation (WA), efficiency of rainwater use (ERU) and carrying capacity (SC) were measured. There was an effect of genotype among all the variables. The genotype with the highest percentage of DM was BRS 655 (26.42%). The genotypes BRS 655, BRS 506, B1141340, 13F04 (1141572) and PONTA NEGRA produced the most FMP, with values of 48,517, 48,500, 44,879, 44,788 and 43,549 kg/ha, respectively. Not only did the genotypes BRS 655, B1141340, 13F04 (1141572), BRS 506 and PONTA NEGRA present the highest DMP, with values of 12,426, 10,344, 9,778, 9,756 and 9,176 kg/ha, respectively, but also the highest values for ERU, WA and SC. There was a significant positive correlation between productive variables (FMP with DMP, PH, ERU and WA) and a nonsignificant negative correlation between morphometric variables (FMP with LB and PAN). A hierarchical formation of four groups was observed, with groups I and III composed of the most productive genotypes. BRS 655 can be recommended for cultivation since this genotype has desirable agronomic characteristics.

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Interactions of three species of plant-parasitic nematodes with arbuscular mycorrhizal fungus, Glomus macrocarpus, and their effect on grape biochemistry

Nematology ◽

10.1163/156854105776186406 ◽

2005 ◽

Vol 7 (6) ◽

pp. 945-952 ◽

Cited By ~ 4

Author(s):

Al-Sayed Al-Sayed ◽

Hosny Kesba

Keyword(s):

Dry Matter ◽

Arbuscular Mycorrhizal Fungus ◽

Soluble Sugars ◽

Mycorrhizal Fungus ◽

Arbuscular Mycorrhizal ◽

Spore Production ◽

Parasitic Nematodes ◽

Total Soluble Sugars ◽

Healthy Control ◽

Total Carbohydrates

AbstractThe arbuscular mycorrhizal fungus (AM fungus),Glomus macrocarpus, and the nematodes, Meloidogyne incognita and Tylenchulus semipenetrans, have negative reciprocal effects on spore production, nematode development and reproduction when coinfecting grape roots. Glomus macrocarpus was antagonistic to Rotylenchulus reniformis development and reproduction whilst the nematode was synergistic to spore production. Glomus macrocarpus alone or in combination with M. incognita or T. semipenetrans increased root protein, total soluble sugars, total carbohydrates and decreased lipids and dry matter. Glomus macrocarpus together with R. reniformis decreased protein, total soluble sugars, total carbohydrates and dry matter and greatly increased lipids. Compared to the healthy control, G. macrocarpus alone or in combination with M. incognita or R. reniformis decreased the N, P and K content of leaves. Glomus macrocarpus together with T. semipenetrans improved N, P and K concentrations but the latter was still less than that of healthy plants.

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Impact of Cold Storage on Bioactive Compounds and Their Stability of 36 Organically Grown Beetroot Genotypes

Foods ◽

10.3390/foods10061281 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1281

Author(s):

Khadijeh Yasaminshirazi ◽

Jens Hartung ◽

Michael Fleck ◽

Simone Graeff-Hönninger

Keyword(s):

Phenolic Compounds ◽

Cold Storage ◽

Significant Influence ◽

Dry Matter ◽

Soluble Sugars ◽

Storage Period ◽

Dry Weight ◽

Total Phenolic ◽

Total Phenolic Compounds ◽

Total Soluble Sugars

In order to exploit the functional properties of fresh beetroot all year round, maintaining the health-benefiting compounds is the key factor. Thirty-six beetroot genotypes were evaluated regarding their content of total dry matter, total phenolic compounds, betalain, nitrate, and total soluble sugars directly after harvest and after cold storage periods of one and four months. Samples were collected from two field experiments, which were conducted under organic conditions in Southwestern Germany in 2017 and 2018. The outcome of this study revealed a significant influence of genotype (p < 0.05) on all measured compounds. Furthermore, significant impacts were shown for storage period on total dry matter content, nitrate, and total phenolic compounds. The medians of nitrate content based on the genotypes studied within the experiment ranged between 4179 ± 1267–20,489 ± 2988 mg kg−1 DW (dry weight), and that for the total phenolic compounds varied between 201.45 ± 13.13 mg GAE 100 g−1 DW and 612.39 ± 40.58 mg GAE 100 g−1 DW (milligrams of gallic acid equivalents per 100 g of dry weight). According to the significant influence of the interactions of storage period and genotype on total soluble sugars and betalain, the decrease or increase in the content of the assessed compounds during the cold storage noted to be genotype-specific. Therefore, to benefit beetroots with retained quality for an extended time after harvest, selection of the suitable genotype based on the intended final use is recommended.

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FEATURES OF THE PRODUCTION PROCESS OF ANCIENT AND MODERN VARIETIES OF WINTER RYE

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2019/6/15-19 ◽

1970 ◽

pp. 15-19

Author(s):

A. A. Torop ◽

V. V. Chaykin ◽

E. A. Torop ◽

I. S. Brailova ◽

S. A. Kuzmenko

Keyword(s):

Production Process ◽

Dry Matter ◽

Leaf Surface ◽

Unit Area ◽

Biomass Accumulation ◽

Vegetation Period ◽

Winter Rye ◽

Total Chlorophyll ◽

Potential Productivity ◽

Productivity Potential

We compared peculiarities of the production process of the older and modern(created 80 years after) sorts of winter rye. It is determined that the specific coenotic productivity of a modern sort is 60.6% higher.This increase is due to higher number of productive sprouts per unit area and higher sprout weight. The coenosis of modern sorts is highly resistant to lodging. The modern sort has a 33.5% higher leaf surface index and a 17.7% higher share of the leaves in the upper tier, differing in their erectile orientation in space. As for the content of total chlorophyll in the dry matter of leaves and vagina, the modern sort is inferior to the older by 30.2%during theearing period, and by 17.5%during the milky-wax ripeness period.As for the content of total chlorophyll in the sowing area, the compared sorts were practically the same, but the ratio between chlorophyll a and c was noticeably different. As for the chlorophyll content in stems, in dry matter and in the area of sowing, the modern sort is inferior by1.5 times and more to the older in both observation terms. The sorts differed in the biomass accumulation and its distribution between the parts during the vegetation period. To establish the ear productivity, the older sort used only the current photosynthesis products.In conditions of an unfavorable growth year, the modern sort used previously accumulated by leaves and re-utilized assimilates. The actual and potential productivity of an ear in a modern sort is higher by 77.4 and 68.0%, respectively, but the degree of its vegetative mass supply is lower by 48.6%.Only due to the higher, by 77.4%, utilization of the mass of the sprout, the modern sort binds a greater number of grains in the ear with a higherseparate mass.Since the sharp increase in the ear productivity potential was not accompanied by the same growth of the sprout vegetative mass, the modern sort, in unfavorable conditions for growth, has tensions in the relation system between the sprout vegetative mass and pouring grain. This may be the reason of the unstable achievedyield level.

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Early prediction of biomass in hybrid rye based on hyperspectral data surpasses genomic predictability in less-related breeding material

Theoretical and Applied Genetics ◽

10.1007/s00122-021-03779-1 ◽

2021 ◽

Vol 134 (5) ◽

pp. 1409-1422

Author(s):

Rodrigo José Galán ◽

Angela-Maria Bernal-Vasquez ◽

Christian Jebsen ◽

Hans-Peter Piepho ◽

Patrick Thorwarth ◽

...

Keyword(s):

Dry Matter ◽

Genetic Relatedness ◽

Snp Array ◽

Matter Content ◽

Hyperspectral Data ◽

Winter Rye ◽

Dry Matter Content ◽

Early Prediction ◽

Bivariate Model ◽

Fresh Matter

Abstract Key message Hyperspectral data is a promising complement to genomic data to predict biomass under scenarios of low genetic relatedness. Sufficient environmental connectivity between data used for model training and validation is required. Abstract The demand for sustainable sources of biomass is increasing worldwide. The early prediction of biomass via indirect selection of dry matter yield (DMY) based on hyperspectral and/or genomic prediction is crucial to affordably untap the potential of winter rye (Secale cereale L.) as a dual-purpose crop. However, this estimation involves multiple genetic backgrounds and genetic relatedness is a crucial factor in genomic selection (GS). To assess the prospect of prediction using reflectance data as a suitable complement to GS for biomass breeding, the influence of trait heritability ($$H^{2}$$ H 2 ) and genetic relatedness were compared. Models were based on genomic (GBLUP) and hyperspectral reflectance-derived (HBLUP) relationship matrices to predict DMY and other biomass-related traits such as dry matter content (DMC) and fresh matter yield (FMY). For this, 270 elite rye lines from nine interconnected bi-parental families were genotyped using a 10 k-SNP array and phenotyped as testcrosses at four locations in two years (eight environments). From 400 discrete narrow bands (410 nm–993 nm) collected by an uncrewed aerial vehicle (UAV) on two dates in each environment, 32 hyperspectral bands previously selected by Lasso were incorporated into a prediction model. HBLUP showed higher prediction abilities (0.41 – 0.61) than GBLUP (0.14 – 0.28) under a decreased genetic relationship, especially for mid-heritable traits (FMY and DMY), suggesting that HBLUP is much less affected by relatedness and $$H^{2}$$ H 2 . However, the predictive power of both models was largely affected by environmental variances. Prediction abilities for DMY were further enhanced (up to 20%) by integrating both matrices and plant height into a bivariate model. Thus, data derived from high-throughput phenotyping emerges as a suitable strategy to efficiently leverage selection gains in biomass rye breeding; however, sufficient environmental connectivity is needed.

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Activated Yeast Extract Enhances Growth, Anatomical Structure, and Productivity of Lupinus termis L. Plants under Actual Salinity Conditions

Agronomy ◽

10.3390/agronomy11010074 ◽

2020 ◽

Vol 11 (1) ◽

pp. 74

Author(s):

Ragab S. Taha ◽

Mahmoud F. Seleiman ◽

Bushra Ahmed Alhammad ◽

Jawaher Alkahtani ◽

Mona S. Alwahibi ◽

...

Keyword(s):

Salinity Stress ◽

Yeast Extract ◽

Field Experiments ◽

Soluble Sugars ◽

Substantial Improvement ◽

Vital Role ◽

Anatomical Structure ◽

Saline Stress ◽

Total Soluble Sugars ◽

Seed Yields

Salinity is one of the most severe environmental stresses that negatively limits anatomical structure, growth and the physiological and productivity traits of field crops. The productivity of lupine plants is severely restricted by abiotic stress, particularly, salinity in arid and semiarid regions. Activated yeast extract (AYE) can perform a vital role in the tolerance of environmental stress, as it contains phytohormones and amino acids. Thus, field experiments were conducted to explore the potential function of active yeast extract (0, 50, 75, and 100 mL AYE L−1) in mitigating the harmful impacts of salinity stress (EC = 7.65 dS m−1) on anatomical structure, growth, and the physiological and productivity traits of two lupine cultivars: Giza 1 and Giza 2. The different AYE treatments resulted in a substantial improvement in studied attributes, for example the growth, anatomical, physiological characteristics, and seed yields of treated lupine cultivars compared with untreated plants. Among the AYE doses, 75 mL L−1 significantly improved plant growth, leaf photosynthetic pigments, total soluble sugars, total protein, and seed yields, and exposed the best anatomical attributes of the two lupine cultivars grown under saline stress. The exogenous application of 75 mL AYE L−1 was the most influential, and it surpassed the control results by 45.9% for 100-seed weight and 26.9% for seed yield per hectare. On the other hand, at a concentration of 75 mL L−1 AYE there was a decrease in the alkaloids and endogenous proline under the studied salinity stress conditions. Promoted salinity stress tolerance through sufficient AYE dose is a hopeful strategy to enhance the tolerance and improve productivity of lupine into salinity stress. Furthermore, the response of lupine to salinity stress appears to rely on AYE dose. The results proved that Giza 2 was more responsive to AYE than Giza 1, showing a better growth and higher yield, and reflecting further salinity tolerance than the Giza 1 cultivar.

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