Environmental plasticity of sunflower lines for valuable economic traits

Author(s):  
VV Andriienko ◽  
VP Kolomatska ◽  
VV Kyrychenko ◽  
VI Syvenko

Our aim was to study the environmental plasticity of female sunflower lines for valuable economic traits, to select lines for heterosis breeding - sources of valuable economic traits with different categories of environmental plasticity. Results and Discussion. Expression of economically valuable traits and their environmental plasticity were studied in female maternal sunflower lines, including lines bred at NAAS institutions. Analyses of variance and regression showed that the lines were ranked according to the genotypic effect and the regression coefficient of these traits. Sunflower lines, which give relatively high yields and demonstrate optimal responses to the year conditions, are recommended to use in breeding for adaptability: short-season line Skh 1006 A (1.48 t/ha), early ripening line Skh 503 A (1.56 t/ha) and mid-early line Od 1042 A (1.60 t/ha). Early ripening line Skh 1002 A (50.4%) and mid-early line Od 1024 A (50.1%) are recommended to use in breeding programs as sources of high oil content and optimal expression of this trait across the years. Line Skh 51 A with a consistently high 1000-achene weight is a valuable source of large seeds. Mid-early line Od 1024 A is noticeable for a stable 1000-achene weight across the years and can serve as a valuable source in breeding programs to achieve a desirable level of this trait. A stable diameter of head was noted in early ripening lines Skh 1010 A and Skh 503 A and in mid-early line Skh 1012 A, which can be used as sources of this trait. Conclusions. The levels and environmental plasticity of the valuable economic traits were evaluated in the female sunflower lines. The lines were grouped in ranks according to the genotypic effect and the regression coefficient of the traits. Short-season, early ripening and mid-early sunflower lines have been identified as sources of valuable traits with different categories of response to the year conditions. The sunflower lines combining relatively high yield, oil content, 1000-achene weight and head diameter with an optimal response to the year conditions are recommended to use in breeding for adaptability.

Author(s):  
O.N. Bilenka

Goal. To evaluation of the shallot gene pool for bulb yield and its components, resistance to viral diseases and to select the most valuable accessions for breeding programs. Results and Discussion. The article presents the results of evaluating 25 shallot accessions for yield and resistance to viral diseases. Five accessions with very high bulb yields (> 135% related to the standard) were selected from the following regions of Ukraine (from the Dnipropetrovska region - D-135 (13.1 t/ha); from the Poltavska region - D-127 (13.9 t/ha); from the Kharkivska region - D-15 (14.0 t/ha), D-34 (14.9 t/ha)) and from the Netherlands (Bonilla (15.9 t/ha). Accessions with high yields (116 - 135% related to the standard) were from the Dnipropetrovska region (D-136 (11.2 t/ha), varieties Olviia (12.3 t/ha) and Kushchyovka Kharkovskaya (12.6 t/ha). Ten accessions were the best in terms of bulb weight, exceeding the standard by 3.0 - 8.3 g:- D-33 (14.2 g), Olviia (14.5 g), D-4 (14.7 g), D- 133 (15.1 g), D-137 (15.2 g), D-130 (15.7 g), D-127 (15.9 g), D-15 (16.6 g), D- 34 (18.3 g), and Bonilla (19.5 g). Seven accessions were noticeable for the bulb number per bulb stem: from the Dnipropetrovska region (D-136 (6.1 bulbs), D-123 (7.0 bulbs), D-124 (7.4 bulbs), D-135 (7.4 bulbs), D-137 (6.4 bulbs), and D-129 (8.0 bulbs)) and from the Netherlands (Bonilla (6.1 bulbs). The following accessions were distinguished by resistance to viral diseases (onion yellow dwarf and mosaic) as sources for breeding: with very high resistance (9 points) - D-120 from Russia, 12 accessions with high resistance (7 points) from Ukraine (D- 4, D-26, D-136, D-125, D-127, D-133, D-130, D-123, D-126, D-137, and D-140) and Bonilla from the Netherlands. Accessions D-127 (Poltavska region), D-137 (Dnipropetrovska region), D-34 and D-15 (Kharkivska region), Bonilla (Netherlands) with a set of traits are of practical interest for breeding. Conclusions. Having studied 25 shallot collection accessions in 2016 – 2018, we distinguished the following accessions: by bulb yield - 8 accessions (11.7 - 15.9 t/ha), by bulb weight - 10 accessions (14.2 - 18.3 g), by the bulb number per bulb stem - 7 accessions (6.1 – 8.0 bulbs), by resistance to viral diseases - 13 accessions (7 – 9 points), by a set of valuable economic traits – 5 accessions.


1981 ◽  
Vol 96 (2) ◽  
pp. 447-450 ◽  
Author(s):  
N. A. Ghanavati ◽  
E. Nahavandi ◽  
A. Ghaderi

SUMMARYA breeding programme was initiated to develop populations of sunflower (Helianthus annuus L.), suitable for the semi-arid regions of Iran. Crosses were made between Chernianka 66 (having low yield, low oil content, short stem, and early maturity), as the female parent and VNIMK 8931 and Record (having high yield, high oil content, long stem, and late maturity) as the male parents. Selection, together with selfing and sib-crossing, resulted in six populations with high yields, high oil content, short stems, and early maturity.Correlation coefficients of oil yield and its components, i.e. seed yield and oil content, were highly significant and significant respectively. Capitulum diameter had highly significant correlations with seed yield and oil yield. Earlier maturity was associated with shorter stems and lower oil content.


2021 ◽  
Vol 37 ◽  
pp. 00133
Author(s):  
Alyona Krasovskaya ◽  
Maria Krasovskaya ◽  
Vladimir Kumpan ◽  
Anna Kling

Comparative assessment of cucumber hybrids of a Semko-Junior farm firm located in a taiga zone of Omsk Region showed that on average over 2 years the cucumber hybrids – F1 Otello and F1 Lastochka – which button stage was noted 2 days earlier in comparison with ultra-early F1 Tviksi and 1 day earlier in comparison with the control sample, were the most early-ripening variety. The longest period of “seedling-button stage” – 46 days – was characteristic of the hybrids F1 Semkross and F1 Kaskader. F1 Otello hybrid gave the highest total (7.53 kg/m2) and commercial yield (7.10 kg/m2), as well as early products yield. On average over 2 years the highest percentage of commercial yield – 93.9 was obtained with F1 Otello hybrid, the lowest – 84.6 – with F1 Semkross hybrid. In 2016, the highest yield – 60.5% of the total amount was harvested with regard to F1 Otello by August 9, more than 50% of the total yield was obtained from F1 Orlenok and F1 Lastochka, which also indicates their early ripening. In 2017, fruiting was later due to weather conditions, and by August 21 F1 Otello gave more than 50% of the yield, which confirmed its early ripening. The highest tasting assessment of buttons in fresh form was obtained for F1 Lastochka and F1 Otello. In the conditions of the taiga zone of Omsk Region, cucumber hybrids of the Semko-Junior farm firm – F1 Otello, as well as F1 Lastochka, which are distinguished by high yields and flavors, are recommended for vegetable growers to ensure early production and high yield.


2020 ◽  
Vol 21 (1) ◽  
pp. 6-9
Author(s):  
Wuye Ria Andayanie

Soybean superior varieties with high yields and are resistant to abiotic stress have been largely released, although some varieties grown in the field are not resistant to SMV. In addition, the opportunity to obtain lines of hope as prospective varieties with high yield and resistance to SMV is very small. The method for evaluating soybean germplasm is based on serological observations of 98 accessions of leaf samples from SMV inoculation with T isolate. The evaluation results of 98 accessions based on visual observations showed 31 genotypes reacting very resistant or healthy to mild resistant category to SMV T isolate  with a percentage of symptom severity of 0 −30 %. Among 31 genotypes there are 2 genotypes (PI 200485; M8Grb 44; Mlg 3288) with the category of visually very resistant and resistant, respectively and  Mlg 3288  with the category of mild resistant.  They have a good agronomic appearance with a weight of 100 seeds (˃10 g) and react negatively with polyclonal antibodies to SMV, except Mlg 3288 reaction is not consistent, despite the weight of 100 seeds (˃ 10 g). Leaf samples from 98 accessions revealed various symptoms of SMV infection in the field. This diversity of symptoms is caused by susceptibility to accession, when infection occurs, and environmental factors. Keywords—: soybean; genotipe; Soybean mosaic virus (SMV); disease severity; polyclonal  antibody


2012 ◽  
Vol 6 (3) ◽  
pp. 294-297 ◽  
Author(s):  
J. W. Burton ◽  
L. M. Miranda ◽  
T. E. Carter ◽  
D. T. Bowman

Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 681 ◽  
Author(s):  
Xiya Fang ◽  
Zhenyu Lai ◽  
Jie Liu ◽  
Chunlan Zhang ◽  
Shipeng Li ◽  
...  

Nuclear receptor subfamily 6, group A, member 1 (NR6A1), as an important member of the nuclear receptor family, plays an important role in regulating growth, metabolism, and differentiation of embryonic stem cells. For this reason, the NR6A1 gene is considered to be a promising candidate for economic traits and was found to be associated with body size traits in many livestock. However, no studies have been conducted on NR6A1 in donkeys so far. Thus, in this research, we focused on donkeys and identified a 13 bp deletion in intron-1 of the NR6A1 gene among 408 individuals from Guanzhong and Dezhou donkeys using polyacrylamide gel electrophoresis. Three genotypes were identified, namely II, ID, and DD. The association analysis indicated that the body lengths and body heights5f genotype II individuals were significantly different to those of genotype ID in Dezhou donkeys. Conclusively, the 13 bp deletion was associated with growth traits in both Guanzhong donkeys and Dezhou donkeys, indicating that the NR6A1 gene could be a possible candidate gene in marker-assisted selection for donkey breeding programs.


2021 ◽  
Vol 13 (15) ◽  
pp. 8247
Author(s):  
Dimitrios N. Vlachostergios ◽  
Christos Noulas ◽  
Anastasia Kargiotidou ◽  
Dimitrios Baxevanos ◽  
Evangelia Tigka ◽  
...  

Lentil is a versatile and profitable pulse crop with high nutritional food and feed values. The objectives of the study were to determine suitable locations for high yield and quality in terms of production and/or breeding, and to identify promising genotypes. For this reason, five lentil genotypes were evaluated in a multi-location network consisting of ten diverse sites for two consecutive growing seasons, for seed yield (SY), other agronomic traits, crude protein (CP), cooking time (CT) and crude protein yield (CPY). A significant diversification and specialization of the locations was identified with regards to SY, CP, CT and CPY. Different locations showed optimal values for each trait. Locations E4 and E3, followed by E10, were “ideal” for SY; locations E1, E3 and E7 were ideal for high CP; and the “ideal” locations for CT were E3 and E5, followed by E2. Therefore, the scope of the cultivation determined the optimum locations for lentil cultivation. The GGE-biplot analysis revealed different discriminating abilities and representativeness among the locations for the identification of the most productive and stable genotypes. Location E3 (Orestiada, Region of Thrace) was recognized as being optimal for lentil breeding, as it was the “ideal” or close to “ideal” for the selection of superior genotypes for SY, CP, CT and CPY. Adaptable genotypes (cv. Dimitra, Samos) showed a high SY along with excellent values for CP, CT and CPY, and are suggested either for cultivation in many regions or to be exploited in breeding programs.


Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1407
Author(s):  
Courtney A. Weber

Annual plasticulture production of strawberries promises superior weed control, fruit quality and yields. However, strawberry varieties adapted for perennial, matted-row production and local markets in cold climate regions have not been widely tested for adaptation to an annual production cycle. Productivity of seven short-day varieties developed for matted-row and/or annual production was examined in an annual plasticulture system in two consecutive trials in central NY (lat. 42.87° N, long. 76.99° W) harvested in 2013 and 2014. ‘Flavorfest’ demonstrated good performance in Trial 1 with high yield (390 g/plant) and large fruit size (13.9 g mean berry weight). ‘Jewel’ was shown to be well adapted to the annual plasticulture system with consistently high yields (330 and 390 g/plant) that equaled or surpassed other varieties and had moderate fruit size. ‘Chandler’ performed similarly to previous trials conducted in warmer regions with yield (340 g/plant) and fruit size (9.8 g mean berry weight) similar to ‘Jewel’. ‘Clancy’ yielded less but was consistent from year to year. The late season varieties Seneca and Ovation showed marked variability between years, possibly due to drastically different temperatures during flowering and fruit development in Trial 1 compared to Trial 2. High temperatures in Trial 1 likely caused higher early fruit yield, a compressed season and a precipitous decline in fruit size in the later season, thus reducing yield in the late season. Survival after a second dormant period was poor resulting in a small second harvest and reduced fruit size. Overall, the system demonstrated many of the expected benefits but may be more sensitive to weather conditions in the region. While many varieties developed for matted-row production may work well in an annual plasticulture system, not all varieties are equally adapted. Performance of each variety should be determined independently before large scale adoption by growers.


2017 ◽  
Vol 19 (8) ◽  
pp. 1969-1982 ◽  
Author(s):  
Deepak Verma ◽  
Rizki Insyani ◽  
Young-Woong Suh ◽  
Seung Min Kim ◽  
Seok Ki Kim ◽  
...  

For realizing sustainable bio-based refineries, it is crucial to obtain high yields of value-added chemicalsviadirect conversion of cellulose and lignocellulosic biomass.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Helge Thisgaard ◽  
Joel Kumlin ◽  
Niels Langkjær ◽  
Jansen Chua ◽  
Brian Hook ◽  
...  

Abstract Background With increasing clinical demand for gallium-68, commercial germanium-68/gallium-68 ([68Ge]Ge/[68Ga]Ga) generators are incapable of supplying sufficient amounts of the short-lived daughter isotope. In this study, we demonstrate a high-yield, automated method for producing multi-Curie levels of [68Ga]GaCl3 from solid zinc-68 targets and subsequent labelling to produce clinical-grade [68Ga]Ga-PSMA-11 and [68Ga]Ga-DOTATATE. Results Enriched zinc-68 targets were irradiated at up to 80 µA with 13 MeV protons for 120 min; repeatedly producing up to 194 GBq (5.24 Ci) of purified gallium-68 in the form of [68Ga]GaCl3 at the end of purification (EOP) from an expected > 370 GBq (> 10 Ci) at end of bombardment. A fully automated dissolution/separation process was completed in 35 min. Isolated product was analysed according to the Ph. Eur. monograph for accelerator produced [68Ga]GaCl3 and found to comply with all specifications. In every instance, the radiochemical purity exceeded 99.9% and importantly, the radionuclidic purity was sufficient to allow for a shelf-life of up to 7 h based on this metric alone. Fully automated production of up to 72.2 GBq [68Ga]Ga-PSMA-11 was performed, providing a product with high radiochemical purity (> 98.2%) and very high apparent molar activities of up to 722 MBq/nmol. Further, manual radiolabelling of up to 3.2 GBq DOTATATE was performed in high yields (> 95%) and with apparent molar activities (9–25 MBq/nmol) sufficient for clinical use. Conclusions We have developed a high-yielding, automated method for the production of very high amounts of [68Ga]GaCl3, sufficient to supply proximal radiopharmacies. The reported method led to record-high purified gallium-68 activities (194 GBq at end of purification) and subsequent labelling of PSMA-11 and DOTATATE. The process was highly automated from irradiation through to formulation of the product, and as such comprised a high level of radiation protection. The quality control results obtained for both [68Ga]GaCl3 for radiolabelling and [68Ga]Ga-PSMA-11 are promising for clinical use.


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