scholarly journals POTENCIJAL PRINOSA GENOTIPOVA CRVENE DJETELIENE (Trifolium pratense L.)

2021 ◽  
Author(s):  
Borislav Petkovic ◽  
◽  
Novo Pržulj ◽  
Vojo Radic ◽  
Darko Acimovic ◽  
...  
Keyword(s):  
Trifolium Pratense ◽  
Red Clover ◽  
First Year ◽  
Green Mass ◽  
Genetic Potential ◽  
Trifolium Pratense L ◽  
Second Year

The aim of this research was to determine the genetic potential for green mass and hay yield of eight red clover genotypes over the two-year period (2010 and 2011). Yields in the first mowing of the first year and the aftermath of the second year did not significantly differ statistically. The highest average yields were gained in the first moving of the second year. The lowest average yields were given by the Viola variety and the highest by the Kolubara

Growth and development of domesticated and wild genotypes of red clover (Trifolium pratense L.) in the Middle Urals

2021 ◽  
pp. 15-20
Author(s):  
В.А. Волошин
Keyword(s):  
Trifolium Pratense ◽  
Red Clover ◽  
Weather Conditions ◽  
Dry Mass ◽  
Middle Urals ◽  
Wild Genotype ◽  
Flowering Pattern ◽  
Green Mass ◽  
Trifolium Pratense L ◽  
Stable Yield

В данной статье представлены результаты сравнительной оценки 11 сортов клевера лугового и одного образца-дикороса, проведённой в Пермском НИИ сельского хозяйства в 2018–2019 годах. Все селекционные сорта сформировали полноценные первый и второй укосы или отаву в оба года использования. Дикорастущая форма формировала только один укос, демонстрируя особенность позднеспелого одноукосного типа. Сорта Кретуновский и Ранний 2 показали себя как типичные раннеспелые двухукосные. Другие сорта занимали промежуточное положение. Наибольший сбор сухого вещества обеспечивал образец-дикорос в оба года при крайне различных погодных условиях (1,266 и 1,259 кг/м2 соответственно). Дикорастущая форма и сорт Ранний 2 обеспечивали стабильные урожаи зелёной массы и сухого вещества независимо от возраста и погодных условий. Образец дикорастущего клевера имел более однородный фенотип по сравнению с сортом Пермский местный — стандартом для позднеспелого типа, что указывает на большую генетическую однородность. Согласно всесторонней оценке, включающей степень перезимовки, урожайность зелёной и сухой массы, характер цветения, созревания, формирования и конечный урожай семян, образец-дикорос имеет отличительные признаки позднеспелого (одноукосного) типа и может использоваться в качестве исходного генетического материала для дальнейшей селекции позднеспелых одноукосных сортов клевера лугового, характеризующихся экономически ценными свойствами: высокой устойчивостью к неблагоприятным условиям окружающей среды, высокой и стабильной урожайностью зелёной массы и семян. Исследования будут продолжены с оценкой ряда образцов дикорастущих форм клевера лугового, обнаруженных в 2019 году в природных биоценозах Пермского края. This article deals with the competitive trial of 11 varieties and 1 wild genotype of red clover conducted at the Research Institute of Agriculture in 2018–2019. All the varieties provided good yields of green mass both in the first and second cuts. Wild genotype provided only one cut as long-season one-cut type. “Kretunovskiy” and “Ranniy 2” performed as typical short-season two-cut varieties. Wild genotype produced the highest yield of dry matter (DM) under contrast weather conditions (1.266 and 1.259 kg/m2, respectively). Wild genotype and “Ranniy 2” formed stable yields of green mass and DM regardless of time period and weather. Wild genotype showed homogeneous phenotype compared to “Permskiy mestnyy” — long-season standard variety indicating high genetic uniformity. Such traits as winter hardiness, green and dry mass yields, flowering pattern, seed maturation, formation and production were evaluated. According to this evaluation wild genotype performed as long-season (one-cut) type showing high resistance to unfavorable conditions, high and stable yield of green mass and seeds. Therefore, it can be used a source of economically important traits for future breeding programs of red clover. Further investigations will focus on the evaluation of wild genotypes of red clover found in the Perm region in 2019.

scholarly journals Boron application in red clover (Trifolium pratense L.) seed production

2015 ◽  
Vol 54 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Dalibor Tomić ◽  
Vladeta Stevović ◽  
Dragan Đurović ◽  
Milomirka Madić ◽  
Nikola Bokan ◽  
...  
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Trifolium Pratense ◽  
Acid Soil ◽  
Red Clover ◽  
Relative Increase ◽  
Second Growth ◽  
Trifolium Pratense L ◽  
Second Year ◽  
Positive Effect

AbstractA field trial with four red clover cultivars was established on acid soil in order to evaluate the effect of foliar boron application on seed yield. The crop received foliar boron treatment during the second growth of the second year at two applications. Although seed yield showed a significant increase in boron-treated plants in 2011 compared with control (26.0%), its relative increase was far higher in 2010 (43.2%), which had increased total rainfall amounts during flowering. Sufficient level of boron supply to red clover plants for seed production has a remarkably positive effect under conditions hampering pollination and fertilisation.

scholarly journals Effect of intercropping wheat with forage legumes on wheat production and ground cover

2001 ◽  
Vol 36 (3) ◽  
pp. 465-471 ◽  
Author(s):  
Gilberto Omar Tomm ◽  
Robert Kerry Foster
Keyword(s):  
Grain Yield ◽  
Trifolium Pratense ◽  
Wheat Yield ◽  
Red Clover ◽  
Ground Cover ◽  
Soil Surface ◽  
Triticum Aestivum L ◽  
First Year ◽  
Forage Legumes ◽  
Trifolium Pratense L

The use of winter legumes in southern Brazil is hindered by the slow growth of these species during establishment exposing soil surface to erosion. Introduction of these species along with spring wheat (Triticum aestivum L.) was studied as a means of increasing ground cover during their initial establishment period, without reducing wheat grain yield. Two experiments were conducted in nearby areas, one in each year. Birdsfoot trefoil (Lotus corniculatus L.), red clover (Trifolium pratense L.) cultivar Quiñequelli, white clover (T. repens L.), and arrowleaf clover (T. vesiculosum Savi) did not reduce cereal yield in either year. Wheat yield was reduced by intercropped red clover cultivar Kenland and by subclover (T. subterraneum L.) in the first year. No grain yield differences due to intercropping with any legume were detected in the second year, when rainfall was below normal. Intercropping with wheat showed to be a practical alternative to enhance ground cover at establishing forage legumes.

scholarly journals Seasonal changes of proteins, structural carbohydrates, fats and minerals in herbage dry matter of red clover (Trifolium pratense L.)

2011 ◽  
Vol 27 (4) ◽  
pp. 1543-1550 ◽  
Author(s):  
S. Vasiljevic ◽  
B. Cupina ◽  
Dj. Krstic ◽  
I. Pataki ◽  
S. Katanski ◽  
...  
Keyword(s):  
Dry Matter ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Cellulose Fiber ◽  
Production Cycle ◽  
Fiber Fractions ◽  
Trifolium Pratense L ◽  
Second Year ◽  
Phosphorus And Potassium ◽  
Novi Sad

Red clover (Trifolium pratense L.) is the second most important perennial forage legume, after alfalfa. It is a significant source of proteins, which are essential in the diet of domestic animals, especially ruminants. The objective of this study was to determine the most important characteristics of dry matter quality (crude proteins, structural carbohydrates, fats and minerals) in three varieties of red clover (K-17, Kolubara and Una). The characteristics were monitored, per individual cuts, during one production cycle of red clover, i.e., in the period 2004- 2006. Highest contents of crude protein in all three test years were obtained in the second cut. Significantly increased contents of crude proteins (18.32%) and potassium (K-2.53%) were found in the red clover cultivar Una developed in Novi Sad. Significantly increased values of both cellulose fiber fractions (NDF, ADF) were registered in the second year of growing. The highest content of minerals was determined at the beginning of the growing season in the first and second year (8.68% and 8.52%, respectively). Here it should be mentioned that the contents of basic biogenous elements, phosphorus and potassium, were within the expected optimum range.

scholarly journals Yield and forage quality of red clover (Trifolium pratense L.) cultivars in the lowland and the mountain regions

2011 ◽  
Vol 50 (No. 9) ◽  
pp. 391-396 ◽  
Author(s):  
J. Leto ◽  
M. Knežević ◽  
K. Bošnjak ◽  
D. Maćešić ◽  
Z. Štafa ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Mountain Region ◽  
Crude Fiber ◽  
Stem Height ◽  
Green Mass ◽  
Growing Seasons ◽  
Trifolium Pratense L

Six Trifolium pratense L. cultivars, five diploid and one tetraploid, were grown in the lowland region (123 m altitude) and the mountain region (650 m altitude). Dry matter (d.m.) and green mass (g.m.) yield, stem height and leaf proportion were assessed from each of the three growing seasons. Chemical composition was assessed from the average samples of all cuts in the second year of the experiment. Greater green mass (54.14 t/ha) and dry matter yield (9.86 t/ha), stem height (0.61 m), crude protein (157.6 g/kg), crude fiber (222.9 g/kg), crude ash (100.68 g/kg) and crude fat (30.09 g/kg) content were observed in the mountain region, compared to the lowland region (45.61 t/ha g.m. 8.92 t/ha d.m. 0.59 stem height, 156.38 g/kg crude protein, 216.6 g/kg crude fiber, 94.85 g/kg crude ash, 24.98 g/kg crude fat). The greater leaf proportion (47.2%) and nitrogen free extract content (420.13 g/kg) were observed in the lowland region compared to the mountain region (42.95% and 402.99 g/kg, respectively). A significant location × cultivar interaction was found for all investigated parameters except for leaf proportion. 

Comparative plowdown value of red clover strains

1992 ◽  
Vol 72 (4) ◽  
pp. 1207-1213 ◽  
Author(s):  
B. R. Christie ◽  
E. Ann Clark ◽  
R. S. Fulkerson
Keyword(s):  
Aboveground Biomass ◽  
Root Biomass ◽  
Trifolium Pratense ◽  
Strain Differences ◽  
Red Clover ◽  
First Year ◽  
Research Station ◽  
Corn Yield ◽  
Continuous Corn ◽  
Trifolium Pratense L

Cultivars and common seedlots of double- and single-cut red clover (Trifolium pratense L.) were direct seeded at the Elora Research Station in 1982 and 1983, fall plowed, and followed by 3 yr of corn (Zea mays L.) harvested for grain yield. The 1982 and 1983 sites differed in background soil N status. Common seedlots produced subsequent corn yields equal to those following certified cultivars, indicating no advantage to the use of certified seed for plowdown purposes. Although double-cut strains produced more aboveground biomass, both in midseason and at plowdown, single-cut strains produced more fall root biomass (1 yr only) and a higher percent root N, but in the end, corn yield did not differ between double- and single-cut strains. The ranges of performance of double- and single-cut strains did not overlap for aboveground biomass, but overlapped substantially for both root and percent shoot N and for root biomass. First-year corn yield varied significantly with red clover strain, in both the double- and single-cut groups, although no strain differences were apparent by the second and third years. Compared to continuous corn with no N fertilizer, red clover increased corn yield by 1.5–1.8 t ha−1 in Year 1, by 0.4–0.9 t ha−1 in Year 2, and by 0–0.7 t ha−1 in Year 3. First-year corn yield was not significantly correlated with red clover parameters measured the preceding year, including aboveground biomass and nitrogen content at plowdown. However, observed patterns of response were consistent with a nitrogen-based plowdown benefit. Breeding to improve plowdown value will depend on identification of those specific plant attributes which confer legume plowdown benefit.Key words: Plowdown, green manure, red clover, nitrogen, corn

Comparisons of Floral Response of Seed Lots of Dollard Red Clover, Trifolium pratense L. 1

Crop Science ◽  
1965 ◽  
Vol 5 (5) ◽  
pp. 425-428 ◽  
Author(s):  
R. J. Bula ◽  
R. G. May ◽  
C. S. Garrison ◽  
C. M. Rincker ◽  
J. G. Dean
Keyword(s):  
Trifolium Pratense ◽  
Red Clover ◽  
Trifolium Pratense L

Effects of Cutting First Year Red Clover on Stand and Yield in the Second Year 1

1955 ◽  
Vol 47 (5) ◽  
pp. 224-228 ◽  
Author(s):  
James H. Torrie ◽  
Earle W. Hanson
Keyword(s):  
Red Clover ◽  
First Year ◽  
Second Year
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