scholarly journals STUDY OF SOURCE MATERIAL FOR EDAPHIC SELECTION OF ALFALFA

2020 ◽  
pp. 134-148
Author(s):  
Vasyl Mamaliha ◽  
Vasyl Buhayov ◽  
Vitalii Horenskyi

The study of collectible samples of alfalfa of different ecological and geographical origin on the harvest of dry matter and seeds against the background of increased acidity of soil solution (pH 5.20-5.53) made it possible to highlight the promising beyond these indicators samples that can be used in further breeding work. Comparison of the height of alfalfa plants in the first slope and feed productivity in general for 2019 shows that there is no direct correlation between these values. For example, the Galaxie variety, which was itself visopory and exceeded the standard by 12cm, was only in fourth place for the dry crop, and the Olga and Media varieties, which exceeded the standard by 9cm, were only eighth and seventh in the dry material. However, for the selection of varieties that combine these two traits, donors may be samples that behind the harvest of dry matter and the height of plants for three years of research reliably exceeded the standard: Banat, Vavilovka (Rodnichok), Feraks 58, Galaxie and Ferax 28. Not all samples form the maximum of green mass in the first slope, so there is no definite pattern between the height of plants in the first slope and the collection of dry matter for the entire growing season. The highest yield of dry matter on average for three years of research was obtained from varieties Vavilovka (Rodnichok) (Ukraine) (1.42 kg/m2), Banat (Serbia) (1.36 kg/m2) and Posevnaya 3022 (Uzbekistan) (1.22 kg/m2) at the harvest of the Sinyuha-standard grade 1.08 kg/m2. The best in seed productivity were samples of Jidrune (Lithuania) (31.9 g/m2), Feraks 58 (Canada) (29.9 g/m2), Tibet (Kazakhstan) (28.5 g/m2), Radoslawa (Ukraine) (28.2 g/m2), Kishvardi 27 (Hung.) (27.7 g/m2), Olga (26.5 g/m2) and Vavilovka (Rodnichok) (Ukraine) (26.2 g/m2) with a yield of standart of 23.5 g/m2. Particular attention is paid to the variety Ferax 58 (Canada), which for all the years of research reliably exceeded the standard for seed harvest and was at the level of the standard or exceeded it in the yield of dry matter. Further breeding work will use samples that reliably exceeded the standard for the average of three years of research for the collection of dry matter and the seed crop respectively: Ferax 58 (10% and 27%), Radoslawa (7% and 20%), Olga (11% and 13%), In addition, these samples exceeded the standard for plant sisoin in the first slope in 2019 by 31%, 11%, 8% and 55%, respectively. Key words: alfalfa sowing, selection, sample, variety, dry matter crop, seed harvest.

2020 ◽  
Vol 1 (26(53)) ◽  
pp. 47-52
Author(s):  
V.D. Bugajov ◽  
V.S. Mamaliga ◽  
V.M. Gorenskij

The study of collecting samples of alfalfa of different ecological and geographical origin for the collection of dry matter and seed yield on the background of high acidity of soil solution (pH 5,20-5,53) made it possible to identify perspectives for these indicators that can be used in further breeding work. The highest dry matter yield in the average of 3 years of research was obtained from the varieties Vavilovka (Rodnich) (Ukraine) (1.42 kg / m2), Banat (Serbia) (1.36 kg / m2) and Sowing 3022 (Uzbekistan) (1,22 kg / m2) at the yield of the Sinyukh standard of 1.08 kg / m2. Seeds of Zhidrune (Lithuania) (31.9 g / m2), Ferrax 58 (Canada) (29.9 g / m2) and Tibet (Kazakhstan) (28.5 g / m2) with yield of standard 23.5 g / m2 were the best seeds. Particularly noteworthy is Ferrax 58 (Canada), which has significantly exceeded the standard of seed yield and exceeded or exceeded the standard of dry matter during all years of research.


Author(s):  
L.H. Marinich

The effects of GCA samples according to the results of dialysis analysis are given. Genetic control systems of traits of each variety are reflected, in particular the relative contribution of dominant and recessive alleles. According to the analysis of the effects of general combinatorial ability, samples with high indicators were selected for most of the studied features: the number of vegetatively elongated shoots - Poltava 52; foliage - Anto; dry matter yield - Poltava 52; protein content in dry matter - Poltava 52; the number of generative shoots - Anto and Poltava 52; panicle length - Anto and Radio-mutant k-7; seed productivity - Anto. A high level of the coefficients of heredity of the studied signs in a broad sense (H2 = 0,93 – 0,99) have been established. The coefficients of heredity in the narrow sense (h2) in terms of genetic variability due to additive effects of genes were different. The highest rate was in seed productivity (0,91), the number of vegetatively elongated shoots (0,78), dry matter yield (0,70); the lowest - in the length of the panicle (0,35) and the height of the plant - (0,43). The protein content was average (0,58). Key words: unbearded hundred-spike, diallel crosses, general combination ability, heredity.


2019 ◽  
Vol 48 (6) ◽  
pp. 37-42
Author(s):  
A. V. Goncharova

The results of research into the creation of a new cultivar of spring common vetch Obskaya 16 are presented. The work was carried out in the period 2014-2017. The goal was set to create a new earlyripening variety with а high fodder and seed productivity, high protein content, and an even ripening of seeds. The vetch cultivar Obskaya 16 was created by the method of hybridization on the basis of genetically different and ecologically-distant genotypes with subsequent multiple selection according to the specified parameters from the Kamalinskaya 611 × Novosibirskskaya hybrid populations. The vetch cultivar Obskaya 16 combines early ripeness with high fodder and seed productivity. The length of the growing season of the new cultivar is, on average, 81 days, which allows for the production of certified seeds annually. During all the years of testing in breeding nurseries, the new cultivar surpassed the standard Kamalinskaya 611 in green mass by 41%, in dry matter by 40%, and in grain by 27%. This cultivar is of mowing type, its average seed yield is 2.43 t/ha, green mass 28 t/ha, dry matter – 5.82 t/ha. The main economic and valuable characteristics of the Obskaya 16 cultivar are as follows: the height of the stem is 85-120 cm, the number of internodes is 19-25, the height of attachment of the lower seed pods is 78 cm. The average number of seed pods per plant is 24, the maximum is 46, the average number of seeds per a seed pod is 7-8. The mass of 1000 seeds is 72.6 g. The colour of the seed coat is mainly black velvet (92%) and brown (8%). Crude protein content is 25.3–30.5%. In 2016 the cultivar of spring common vetch was passed to the state variety testing under the name Obskaya 16. The newly created cultivar surpasses the previously recognized varieties in the region by early ripeness, fodder and seed productivity, as well as high fodder quality.


2018 ◽  
pp. 62-66 ◽  
Author(s):  
S. A. Ignatiev ◽  
T. V. Gryazeva

The main parameter of the breeding work with alfalfa in the ARC “Donskoy” is the improvement of fodder and seed productivity. Through the years the breeding work was carried out with 500–860 collection samples of alfalfa, alfalfa hybrids and alfalfa lines of the local origin. The main method of the breeding work was poly-crossing. It’s characterized with a multiple repetition of selections of the best plants from the populations, their self-pollination and crossing by free pollination in the plots of poly-crossing. It resulted in accumulation and concentration of favourable traits in the population. The selection promoted systematic improvement of synthetic populations according to economic-valuable traits, especially fodder and seed productivity. During the research, productivity of green mass of the standard variety ‘Rostovskaya 90’ was 28.2 t/ha in the first cutting and 19.0 t/ha in the second one on average. The varieties ‘Lyutsiya’ and ‘Selaynka’ produced 30.6 t/ha, 19.8 t/ha and 32.1 t/ha, 20.4 t/ha respectively. The sum of the harvested green mass of the standard variety was 47.2 t/ha, while ‘Lyutsiya’ produced 50.5 t/ha and ‘Selaynka’ 53.1 t/ha, that is on 7.0% and 12.5% larger than the standard. The similar result was obtained in productivity of dry matter. The total quantity of dry matter produced by the standard variety was 11.6 t/ha (two cuttings), the varieties ‘Lyutsiya’ and ‘Selaynka’ gave 12.6 t/ha and 12.8 t/ha that is on 8.6% and 10.3% more than the standard. The estimation of the breeding work with alfalfa in the preliminary and competitive variety testing allowed to identify the new alfalfa variety ‘Golubka’ and to send it to the State Variety Testing. In the competitive variety testing (2012–2016) the variety produced larger yields that the standard variety (productivity of all five 1-st cutting). With its average productivity of green mass (31.9 t/ha) it exceeded the standard on 13.1%. In the 2-d cutting its green mass productivity was 20.9 t/ha that is on 10.9% more that the standard.  With the average productivity of green mass the variety ‘Golubka’ produced 8.0 t/ha in the 1-st cutting and 4.9 t/ha in the 2-d, that is on 12.7% and 8.9% lager that that of the standard.  The variety ‘Golubka’ produced 52.8 t/ha green mass for two cuttings and 12.8 t/ha dry matter that is on 11.9% and 10.3% larger than the standard variety ‘Rostovskaya 90’. Seed productivity of the standard variety was 0.23 t/ha on average, the varieties ‘Lyutsiya’ and ‘Selaynka’ gave 0.25 t/ha, the new variety ‘Golubka’ produced 0.29 t/ha, that is on 8.7 and on 26.1% more than the standard.


2019 ◽  
Vol 24 ◽  
pp. 40-43
Author(s):  
V. D. Bugayov ◽  
V. M. Gorenskiy ◽  
V. S. Mamalyga

Aim. Investigation and evaluation of alfalfa samples collection based on the main economic and valuable features for further use in breeding in conditions of high acidity of the soil. Methods. Fields (conducting phenological observations and records), laboratory (accounting for seed productivity), mathematical-statistical (objective estimation of experimental data obtained). Results. According to the results of the research, 30 collection samples genotypes were identified to be tolerant to the acidity of the soil with relatively high fodder and seed yield, which exceeded the standard Syniukha variety by these parameters by 7-27% and 9-64% respectively. Conclusions. The information database of the source material for feed and seed productivity, which can be used in the future for creating varieties of soil tolerant to high acidity, is obtained. Keywords: alfalfa, collectable samples, soil acidity, seed yield, dry matter.


2016 ◽  
Vol 2 (91) ◽  
pp. 57-62
Author(s):  
O.L. Kyrylesko

Influence of top-dressing is considered in the article, norms and terms of sowing on of winter-annual rape. The assessment conducted by the yield of green mass and seeds, output capacity by about 1 hectare of dry matter, feed units and digestible protein, the number of dead plants and density of herbage. Established that hardiness and productivity of winter rape can be enhanced through the use of farming practices as: by creating a moderate density of herbage, using optimal terms of planting and doses of mineral fertilizers, selection of predecessors and careful preparation of the soil ect. The mechanism of influence of agrotechnical receptions is exposed on of winter-annual rape through determination in roots before the offensive of the winter of separate biochemical indexes (sugar, starch, to protein).


1978 ◽  
Vol 91 (1) ◽  
pp. 47-60 ◽  
Author(s):  
J. N. Gallagher ◽  
P. V. Biscoe

SummaryAnalysis of measurements of absorbed radiation and leaf area indices of wheat and barley crops showed that throughout most of growth the fraction of absorbed solar radiation could be described by a simple exponential equation.For several of these crops grown under a wide range of weather and husbandry at Sutton Bonington and Rothamsted, 2-weekly values of crop growth rate (C) were closely related to radiation absorbed until ear emergence and about 3·0 g of dry matter (D.M.) were produced by each MJ of photosynthetically active radiation (PAR) absorbed. Final crop weight was closelyrelated to total PAR absorbed during growth (SA); on average about 2·2 g D.M. were produced per MJ absorbed, equivalent to a growth efficiency (Eg) of approximately 3·9%. Unfertilized and drought-stressed crops had a smaller Eg.The fraction of total crop D.M. harvested as grain (harvest index) varied more for wheat than for barley. Calculations of a maximum realizable grain yield made using the largest values of Eg and SA for the crops measured and assuming a harvestindex of 0.53 (achieved in an experimental crop) showed a grain D.M. yield of 10·3 t D.M./ha to be possible. To achieve such a yield would require full crop cover from the beginning of April until the end of July in a typical English growing season.


Author(s):  
В. Д. Тромсюк ◽  
◽  
В. Д. Бугайов ◽  

The research was conducted in 2014-2017 in the department of selection of fodder, grain ears, and industrial crops in the fields of scientific crop rotation of the Institute of Fodder and Agriculture of Podillya NAAS of Ukraine. A collection of 114 hexaploid specimens of different ecological and geographical origins was used as research material. Six varieties of winter triticale of different ecological and geographical origin and the manifestation of valuable economic features were used in crosses according to the scheme of full diallel analysis: Polovetske (UA0602494), Amos (UA0602627) originating from Ukraine; Kapryz (UA0601781), Tsekad 90 (UA0602066) - Russia; Dubrava (UA0602222) - Belarus and Pawo (UA0602555) - Poland. Only the best plants, which did not lag in growth and were normally developed, were selected for hybridization. The obtained generation F0 was sown in 2016, and generation F1 – 2017 manually in an experimental field with the same depth, which provides plants with the same area of nutrition. After full maturation, the plants were also collected manually in sheaves, structural analysis was performed on the main indicators of productivity. The frequency and degree of manifestation of positive transgressions in hybrids of the second generation (F2) of winter triticale were evaluated based on productivity: productive bushiness, number and weight of ear grains and grain weight from the plant. The best hybrids by degree and frequency of manifestation of positive transgression are selected. The degree of transgressions in productive bushiness averaged 65.3%, frequency - 43%; number of grains in the main ear - 7.4%, frequency - 15.3%; weight of grain in the ear - 13.8% at a frequency of 27, 7%; weight of grain from the plant - 91.5% with a transgression frequency of 52.7%. The best hybrid combinations of winter triticale on the basis of "productive bushiness" - Polovtsian / Caprice and Dubrava / Polovtsian (Tc = 100%), the maximum frequency of transgressions on this basis - hybrids Polovtsian / Caprice / Pawos and Pawo are selected and offered for use in the selection process. TC = 60); "Number of grains from the ear" - the maximum degree of transgressions was found in the hybrid Pawo / Polovtsian (Tc = 18.1%), the maximum frequency - in the hybrid Caprich / Pawo (Tch = 40); "Ear grain mass" - Pawo / Amos (Tc = 37.0%), the highest frequency of transgressions - in hybrids Amos / Dubrava and Kaprikh / Pawo (Tch = 50); "Grain weight from the plant" - Polovtsian / Amos (Tc = 37.0%), the frequency of transgressions - hybrids Polovtsian / Amos and Polovtsian / Caprice (Tc = 85%).


2010 ◽  
Vol 61 (5) ◽  
pp. 353 ◽  
Author(s):  
L. L. Burkitt ◽  
D. J. Donaghy ◽  
P. J. Smethurst

Pasture is the cheapest source of feed for dairy cows, therefore, dairy pastures in Australia are intensively managed to maximise milk production and profits. Although soil testing commonly suggests that soils used for dairy pasture production have adequate supplies of phosphorus (P), many Australian dairy farmers still apply fertiliser P, often by applying smaller rates more frequently throughout the year. This study was designed to test the hypotheses that more frequent, but lower rates of P fertiliser applied strategically throughout the growing season have no effect on dry matter production and P concentration in perennial ryegrass (Lolium perenne L.), when soil extractable P concentrations are above the critical value reported in the literature. Three field sites were established on rain-fed dairy pasture soils ranging in P sorption capacity and with adequate soil P concentrations for maximising pasture production. Results showed that applied P fertiliser had no effect on pasture production across the 3 sites (P > 0.05), regardless of rate or the season in which the P was applied, confirming that no P fertiliser is required when soil extractable P concentrations are adequate. This finding challenges the viability of the current industry practice. In addition, applying P fertiliser as a single annual application in summer did not compromise pasture production at any of the 3 sites (P > 0.05), which supports the current environmental recommendations of applying P during drier conditions, when the risk of surface P runoff is generally lower. The current results also demonstrate that the short-term cessation of P fertiliser application may be a viable management option, as a minimal reduction in pasture production was measured over the experimental period.


1988 ◽  
Vol 47 (1) ◽  
pp. 105-110 ◽  
Author(s):  
P. K. Bhargava ◽  
E. R. Ørskov ◽  
T. K. Walli

AbstractExperiments were made to study the proportion, chemical composition, and rumen degradability of the morphological components of barley straw (Corgi variety) and to study the selection of these components by sheep. The proportions in the harvested straw dry matter (DM) as leaf blade, leaf sheath, stem and chaff were 128, 314, 500 and 58 g/kg DM, respectively. The different components of straw on analysis proved to have very different concentrations of nitrogen and neutral-detergent cellulase digestibility. The leaf blades had the highest and the stems the lowest values. The degradabilities of DM in the components and in the whole straw were determined by measuring DM loss from samples incubated in nylon bags for various periods in the rumen of sheep. Responses were measured using the mathematical model p = a+b (1–e−ct) where p is DM loss, (a+b) potential degradability, c the rate constant of DM loss and t is the time of incubation. DM losses decreased in the order leaf blades > leaf sheath > whole plant > chaff > stems. Leaf blades also had the highest potential degradability and rate of degradation.In another trial, five sheep were offered unchopped barley straw ad libitum. There were five treatment periods in which sheep were allowed to leave uneaten proportionately 0·2, 0·3, 0·4, 0·5 and 0·7 of the straw on offer for assessing the animal's selection of the morphological components of that straw. The amount of leaf blade in the material consumed increased in largely a linear (P < 0·01) fashion with the amount of excess allowance. The proportion of stem eaten varied conversely. The selection of leaf sheath was less apparent. Little stem was consumed until the proportion of leaf blade in the food available decreased below proportionately 0·4. The practical significance of the study is discussed.


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