Selection of Dry Pea (Pisum Sativum) Varieties and their Performance by Comparison with Barley and Wheat in Mediterranean Environments

1994 ◽  
Vol 30 (4) ◽  
pp. 477-481
Author(s):  
A. Hadjicristodoulou

SUMMARYThe possibility of growing dry peas in the semi-arid areas of Mediterranean countries was assessed by comparing dry pea (Pisum sativum L.) varieties with the highest yielding barley and durum wheat varieties under rainfed conditions and with supplementary irrigation in Cyprus. The yield of barley cv. Kantara was greater than that of the best pea variety selected, PS 210713, especially under the driest conditions, but the differences between cereals and dry pea varieties were smaller when grown in areas where there was more rain or where supplementary irrigation was supplied. The protein content of the dry seeds and straw of the peas was higher than those of the cereals. It is concluded that selected varieties of dry peas could be grown in dry Mediterranean areas, particularly in rotation with barley or wheat.Pisum sativum L. para zonas mediterráneas

Author(s):  
Nadia Chiahi ◽  
Louhichi Brinis

Wheat is an important cereal in terms of human consumption in many countries of the world. It is grown mainly in arid and semi-arid Mediterranean countries. In these areas, salinity of soils and irrigation water is one of the limiting factors in plant productivity and agricultural yield. The present work consisted in evaluating the morpho-physiological and biochemical behavior of two durum wheat varieties V1 (Gta dur), V2 (Vitron) subjected to increasing concentrations of NaCl during the germination phase and the growth phase in the laboratory. The results obtained showed several revelations in terms of morphological imbalance (leaf area, germination percentage, root length, physiological variation, decrease or increase of assimilating pigments, Relative Water Content (RWC), etc), and biochemical bioaccumulation (proline, soluble sugars, proteins and elevation of activity of CAT antioxidant enzymes). At the level of treatments, the development of the seedlings of two varieties was better on soil salty and sprinkled with water than in the presence of saline concentrations. A certain tolerance of the two genotypes was particularly marked in the Vitron variety against salt stress.


Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 315
Author(s):  
Sara Graziano ◽  
Nelson Marmiroli ◽  
Giovanna Visioli ◽  
Mariolina Gullì

Durum wheat is an important food source in Mediterranean countries, and Italy is the major producer of durum wheat in Europe. The quality of durum wheat flours depends on the type and amount of gluten proteins and starch while flour nutritional value rests on metabolite contents such as polyphenols. In this work, two Italian cultivars, Iride and Svevo, were analyzed for two years (2016–2017) in four Italian regions to explore how the environment affects: (i) reserve proteome; (ii) starch content and composition; and (iii) free, conjugated, bound phenolics and antioxidant capacity. The impact of environmental and meteorological conditions was significant for many traits. Regardless of the cultivation site, in 2017, a year with less rainfall and a higher temperature during grain filling, there was an increase in low molecular weight glutenins, in the glutenin/gliadin ratio and in the A-type starch granules size, all parameters of higher technological quality. In the same year, the cultivars showed higher amounts of polyphenols and antioxidant capacity. In conclusion, the two wheat cultivars, selected for their medium to high yield and their good quality, had higher performances in 2017 regardless of their sowing locations.


2020 ◽  
Author(s):  
Gokhan Hacisalihoglu ◽  
Jelani Freeman ◽  
Paul R. Armstrong ◽  
Brad W. Seabourn ◽  
Lyndon D. Porter ◽  
...  

Abstract Background: Pea (Pisum sativum) is a prevalent cool season crop that produces seeds valued for high protein content. Modern cultivars have incorporated several traits that improved harvested yield. However, progress toward improving seed quality has received less emphasis, in part due to the lack of tools for easily and rapidly measuring seed traits. In this study we evaluated the accuracy of single-seed near-infrared spectroscopy (NIRS) for measuring pea seed weight, protein, and oil content. A total of 96 diverse pea accessions were analyzed using both single-seed NIRS and wet chemistry methods. To demonstrate field relevance, the single-seed NIRS protein prediction model was used to determine the impact of seed treatments and foliar fungicides on protein content of harvested dry peas in a field trial. Results: External validation of Partial Least Squares (PLS) regression models showed high prediction accuracy for protein and weight (R2 = 0.94 for both) and less accuracy for oil (R2 = 0.75). Single seed weight was not significantly correlated with protein or oil content in contrast to previous reports. In the field study, the single-seed NIRS predicted protein values were within 1% of an independent analytical reference measurement and were sufficiently precise to detect small treatment effects. Conclusion: The high accuracy of protein and weight estimation show that single-seed NIRS could be used in the dual selection of high protein, high weight peas early in the breeding cycle allowing for faster genetic advancement toward improved pea nutritional quality.


Author(s):  
Benalia Frih ◽  
Abdelmalek Oulmi ◽  
Ali Guendouz

Background: This study was conducted during the 2020/2021 cropping season at Setif Agricultural Experimental Station, it aims to assess the efficiency of using numerical image analysis (NIA) in the selection of durum wheat genotypes in semi-arid areas. Methods: The genetic materials used in this study consist of 11 advanced lines and 4 genotypes of which 3 are local landraces used as control to evaluate their performance, the genotypes tested were sown in a randomized block design (RDB) with three replications. each plot consisted of 6 lines of 10 m long spaced of 0.2 m witdth makes 12 m2 as plot area. Result: Analysis of variance showed that all the parameters measured numerically (senescence and total reflectance) had a very high genotypic significance. The chlorophyll content at full heading showed a very highly significant genotypic effect. Thousand kernels weight, number of spikes per meter square, number of days to heading and plant height had a significant genotypic effect. The correlation study showed that all senescence parameters were significantly correlated. A significant and negative correlation was observed between chlorophyll contents; average of velocity and total reflectance. Grain yield was highly and significantly correlated with thousand kernels weight and number of spikes per meter square. Number of spikes per meter square was significantly and positively correlated with average of velocity and negatively correlated with sum of temperatures at mid-senescence. Number of days to heading was significantly and negatively correlated with senescence average and maximum of senescence average. A significant correlation was observed between plant height and sum of temperatures at mid-senescence.


2019 ◽  
Vol 19 (2) ◽  
pp. 185-192
Author(s):  
Jarbas Florentino de Carvalho ◽  
José Jaime Vasconcelos Cavalcanti ◽  
Francisco José Correia Farias ◽  
Jean Pierre Cordeiro Ramos ◽  
Damião Raniere Queiroz ◽  
...  

2019 ◽  
Vol 35 (4) ◽  
Author(s):  
Elyes Babay ◽  
Sameh Rahmani Mnasri ◽  
Rim Mzid ◽  
M'barek ben Naceur ◽  
Mohsen Hanana

Our study focuses on the molecular analysis of the genetic diversity within 15 Tunisian durum wheat varieties and the assessment of the efficiency of some available markers to select valuable genotypes for technological proprieties of semolina (i.e. parameters related to SDS-sedimentation, mixing time and breakdown resistance of mixograph, grain protein content and yellow colour). While several markers were validated, others were not informative within the genotypes used. A high level of polymorphic information content (PIC) was detected, with an average of 5.2 polymorph alleles per locus and 0.6 average. Old varieties have high protein content however; modern varieties display strong gluten strength. Our results thus open the opportunity to choose valuable parents on the base of pedigrees, technological properties and genetic distances; and lead us to select efficient markers for the Regional Indigenous Land Strategy (Rils) selection strategy.


2022 ◽  
Vol 51 (4) ◽  
pp. 759-767
Author(s):  
Madina Sadygova ◽  
Sergei Gaponov ◽  
Galina Shutareva ◽  
Natalya Tsetva ◽  
Tatyana Kirillova ◽  
...  

Introduction. Durum wheat is vital for high-quality pasta production. The present research tested the high technological potential of durum wheat varieties developed in the Saratov region. The research objective was to study the effect of the quality of durum wheat on the quality of pasta. Study objects and methods. The study featured durum wheat of the following varieties: Saratovskaya Zolotistaya, Valentina, Nik, Krasnokutka 13, Luch 25, Pamyati Vasilchuka, Bezenchukskaya 182 and Annushka. The experiment involved an original PSL-13 press for standard spaghetti with a diameter of 1.8 mm. The content of protein, raw gluten, and their quality were determined by standard methods. The cooking properties of the pasta were evaluated according to the method developed in the South-Eastern Federal Agricultural Research Center. Results and discussion. The indicators of raw gluten and protein are known to correlate. The samples of Saratovskaya Zolotistaya and Luch 25 had a high protein content of 15.3 and 15.6%, respectively, as well as a high content of raw gluten (33.2 and 35.1%, respectively). The raw gluten of Saratov varieties proved to be much better than in the control samples. The indicator of microSDs sedimentation was 30–36 mm. The strength of spaghetti followed the increase in crude gluten (33–35%) and protein (15.3–15.6%), which is typical of this type of pasta. The strength, coefficient of determination (R2 = 0.98), and sharing force (R2 = 0.92) depended on the protein content. Conclusion. The study established the following optimal selection criteria for durum wheat varieties to be used in strong spaghetti production: virtuosity – 80%, raw gluten – 33–35%, protein content – 5–7% higher than normal, raw gluten – 72–80 units.


1987 ◽  
Vol 108 (3) ◽  
pp. 599-608 ◽  
Author(s):  
A. Hadjichristodoulou

SummaryData from several trials with large numbers of barley and durum wheat varieties conducted mainly under dryland conditions in a Mediterranean climate were used to study the effects of heading date and its stability on consistency of performance.Heading date was expressed in relation to one or more control varieties, because of the significant genotype × environment interactions. Data from trials during 1969–85 were used to determine optimum heading date in order to aid selection for consistently high-yielding varieties. For rainfed barley in Cyprus this optimum range was between 2 days after and 5–8 days before heading of Kantara barley and for rainfed wheat 1 day after to 4 days before heading of Karpasia durum wheat. It is suggested that by selecting at one environment single plants from segregating populations or lines from nurseries and yield trials, having heading date within the optimum range, the chances of selecting consistently high-yielding lines are increased.The genotype and environment significantly affected heading date. Stability of heading date was genetically controlled. Early varieties tended to be more variable than late varieties of both barley and durum wheat. Lines with the lowest values for variance of heading date gave low yields under variable conditions because they were very late. The consistently high-yielding lines of barley and durum wheat had variance of log transformed heading (s2log2) 0·025–0·050.In durum wheat, lines with the lowest variance were later in heading date than the optimum for Cyprus environments. The absolute values of variance of heading date of varieties varied with year, but significant positive correlations were obtained between years (r = 0·84 for durum wheat and r = 0·55 for barley, P < 0·01).Barley, which is considered a safer crop for the driest parts of the Mediterranean countries, heads a few days earlier than durum wheat but its better performance may be attributed also to its ability to grow faster than wheat in the winter months.


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