THE EFFECT OF LEVEL OF NITROGEN AND CUTTING TREATMENT ON LEAF AREA IN SWARDS OF S48 TIMOTHY (PHLEUM PRATENSE, L.) AND S215 MEADOW FESCUE (FESTUCA PRATENSIS, L.)

1964 ◽  
Vol 19 (4) ◽  
pp. 396-402 ◽  
Author(s):  
D. A. Lambert
Keyword(s):  
Leaf Area ◽  
Phleum Pratense ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Phleum Pratense L

The influence of density and nitrogen in seed production stands of S48 timothy (Phleum pratense L.) and S215 meadow fescue (Festuca pratensis L.)

1964 ◽  
Vol 63 (1) ◽  
pp. 35-42 ◽  
Author(s):  
D. A. Lambert
Keyword(s):  
Seed Production ◽  
Phleum Pratense ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Plant Densities ◽  
Phleum Pratense L ◽  
Made In

Seed production stands of S 48 timothy and S 215 meadow fescue were obtained with varying plant densities by utilizing two driE widths, removing sections of drill, or oversowing drilled material.Annual tiller counts were made in preselected quadrats, and performances of tiller populations were assessed from these quadrats.

The yield of legume-gramineous ecosystems with various varieties of red clover on the Non-Chernozem drained lands

2021 ◽  
pp. 15-20
Author(s):  
А.Д. Капсамун ◽  
Е.Н. Павлючик ◽  
Н.Н. Иванова
Keyword(s):  
Protein Content ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Phleum Pratense ◽  
Festuca Pratensis ◽  
Meadow Fescue ◽  
Trifolium Pratense L ◽  
Digestible Protein ◽  
Short Season ◽  
Phleum Pratense L

Изучение урожайности трёхкомпонентных бобово-злаковых травосмесей с различными сортами клевера лугового проводилось в Тверской области на опытном поле ВНИИ мелиорированных земель в 2018–2020 годах. Опыт заложен в 2018 году на осушаемой дерново-подзолистой почве. Изучались следующие сорта многолетних трав: клевер луговой (Trifolium pratense L.) Кретуновский, Грин, Шанс, Фаленский 86; люцерна изменчивая (× Medicago varia Mart.) Вега 87; тимофеевка луговая (Phleum pratense L.) ВИК 9 и овсяница луговая (Festuca pratensis L.) Сахаровская. В 2020 году наиболее высокими темпами роста обладали травостои второго года пользования с ранними сортами клевера лугового Кретуновский и Грин в смеси с тимофеевкой луговой сорта ВИК 9 — 67–70 см при густоте стеблестоя 495–852 шт./м2. Наиболее продуктивными на осушаемых землях показали себя смешанные травостои люцерны изменчивой, клевера лугового и тимофеевки луговой. Трёхкомпонентные агрофитоценозы укосного типа на основе сортов клевера лугового Кретуновский, Грин, Шанс, Фаленский 86, люцерны изменчивой и тимофеевки луговой сформировали урожай кормовой массы 35–39,7 т/га. Травосмесь тимофеевки луговой с раннеспелым сортом клевера Шанс сформировала два укоса с выходом сухой массы 9,5 т/га, овсяницы луговой — 9,0 т/га. Отмечено хорошее качество полученной растительной массы: содержание переваримого протеина составило 18,9–19,5 г/кг при энергетической питательности 1,09–1,26. В растительной массе травосмесей с овсяницей луговой содержание переваримого протеина было выше, чем в смесях с тимофеевкой луговой, на 1,1 г/кг корма в первом и на 2,41 г/кг корма во втором укосе. По содержанию кормовых единиц в 1 кг корма питательность кормовой массы в зависимости от состава исследуемых смесей была равноценна — 0,23–0,24. The investigation took place in the Tver region on the trial field of the All-Russian Research Institute of Reclaimed Lands in 2018–2020. The research tested the yield of trinary legume-gramineous ecosystems with various varieties of red clover. The field trial was carried out on the drained sod-podzolic soil in 2018. The following perennial grasses were studied: red clover (Trifolium pratense L.) “Kretunovskiy”, “Grin”, “Shans”, “Falenskiy 86”; bastard alfalfa (× Medicago varia Mart.) “Vega 87”; common timothy (Phleum pratense L.) “VIK 9”; and meadow fescue (Festuca pratensis L.) “Sakharovskaya”. Growth rates were the highest in the mixtures with short-season red clover varieties “Kretunovskiy”, “Grin”, and common timothy. In 2020, these variants reached height of 67–70 cm and density of 495–852 plants per m2 in the second year. Trinary ecosystems to be cut with bastard alfalfa, red clover “Kretunovskiy”, “Grin”, “Shans”, “Falenskiy 86”, and common timothy provided the maximum yield on the drained lands — 35–39.7 t ha-1. The mixture of common timothy with short-season red clover “Shans” formed 9.5 t ha-1 of dry mass per two cuts, meadow fescue — 9.0 t ha-1. The feed mass showed high quality: digestible protein content was 18.9–19.5 g/kg, energy nutrition was 1.09–1.26. Mixtures with meadow fescue exceeded the ones with common timothy in digestible protein content by 1.1 g/kg in the first cut and by 2.41 g/kg — in the second one. Different variants showed almost no variation in feed units per 1 kg of forage — 0.23–0.24.

Morphogenetic characteristics of timothy grown with varying N nutrition

1998 ◽  
Vol 78 (1) ◽  
pp. 103-108 ◽  
Author(s):  
G. Bélanger
Keyword(s):  
Leaf Area ◽  
Structural Characteristics ◽  
Nitrogen Deficiency ◽  
Phleum Pratense ◽  
Radiation Interception ◽  
N Nutrition ◽  
N Deficiency ◽  
Leaf Appearance ◽  
Leaf Extension ◽  
Phleum Pratense L

The leaf area development of grasses and subsequently radiation interception depends on morphogenetic processes such as leaf extension and appearance. Leaf extension and appearance of timothy (Phleum pratense L.) grown with varying rates of N nutrition and their impact on sward structural characteristics were studied during primary growth in spring and during a summer regrowth. With no N applied in spring and summer, the leaf extension rate (LER) and the leaf appearance rate (LAR) of timothy were approximately 40% and 65% of that obtained under non-limiting N conditions (140 kg N ha−1 in spring and 120 kg N ha−1 in summer). Nitrogen deficiency reduced tiller density in spring but increased it in summer. The differential effect of the N deficiency on LER and LAR modified the sward structural characteristics. Nitrogen deficiency decreased the length of mature leaves, their width and the total leaf length per tiller. The reduced LER associated with N deficiency explained for the most part the N effect on leaf area expansion and radiation interception. Key words: Phleum pratense L., timothy, leaf extension, leaf appearance, tillering, nitrogen

EFFECT OF GRASS SPECIES AND ROW SPACING ON DANDELION ESTABLISHMENT AND GROWTH

1979 ◽  
Vol 59 (4) ◽  
pp. 1031-1036 ◽  
Author(s):  
A. L. DARWENT ◽  
C. R. ELLIOTT
Keyword(s):  
Average Density ◽  
Phleum Pratense ◽  
Grass Species ◽  
Row Spacing ◽  
Minor Effect ◽  
Meadow Fescue ◽  
Intermediate Wheatgrass ◽  
Red Fescue ◽  
A Minor ◽  
Phleum Pratense L

The size of dandelions (Taraxacum officinale Weber) growing in intermediate wheatgrass (Agropyron intermedium (Host.) Beauv.), crested wheatgrass (A. cristatum L.), a northern biotype of bromegrass (Bromus inermis Leyss.), a southern biotype of bromegrass, meadow fescue (Festuca elatior L.), creeping red fescue (F. rubra var. genuina L.) and timothy (Phleum pratense L.) was effectively reduced by decreasing the row spacing of each grass from 100 cm to 20 cm. Russian wild ryegrass (Elymus junceus Fisch.) had only a minor effect on dandelion size regardless of the row spacing at which it was planted. Within any given row spacing between 20 and 100 cm, dandelion density was not affected by grass species. However, as the row spacing decreased the average density of dandelions growing in the seven grass species also decreased.

scholarly journals Yellow-flowered lucerne: Properties and influence on performance and reproduction of ewes

1998 ◽  
Vol 7 (4) ◽  
pp. 437-446 ◽  
Author(s):  
R. SORMUNEN-CRISTIAN ◽  
S. TAPONEN ◽  
I. SAASTAMOINEN
Keyword(s):  
Reproductive Performance ◽  
Dry Matter ◽  
Phleum Pratense ◽  
Meadow Fescue ◽  
Mating Period ◽  
Grass Silage ◽  
Modified Method ◽  
Grazed Pasture ◽  
And Control ◽  
Phleum Pratense L

Conception rates and prolificacy of Finnish Landrace ewes fed yellow-flowered lucerne (Medicago falcata L.) pasture and silage prior to and during the mating period were compared with those of control ewes fed timothy (Phleum pratense L.) - meadow fescue (Festuca pratensis Huds.) pasture and silage. Ewes grazed pasture for four weeks and received their respective silage for 10 weeks indoors. Dry matter (DM) intake of lucerne silage was higher than that of grass silage (1.77 vs. 1.40 kg DM day-1). Timothy-fescue grass and silage analysed by a new modified method did not contain detectable amounts of plant oestrogens. In fresh and preserved lucerne, the amount of coumestrol was only moderate varying from zero to 59.5 ppm DM. Ewes fed lucerne received higher amounts of plant oestrogens than those on control feeding, but no differences in conception rate or lambing performance were found between the groups. However on lucerne, ewes conceived five days earlier (P=0.03) than control animals. Prolificacy of lucerne and control fed ewes averaged 3.13 and 3.19 lambs/ewe (P=0.76), respectively. There were no ewe health problems. The results suggest that the intake of yellow-flowered lucerne is good and the level of plant oestrogens has no detrimental effects on reproductive performance of adult Finnish Landrace ewes. ;

scholarly journals The influence of oil pollution on the growth and development of phleum pratense, festuca pratensis, phalaris canariensis

2021 ◽  
Vol 54 (2) ◽  
pp. 127-134
Author(s):  
Tatyana G. Akateva
Keyword(s):  
Seed Germination ◽  
Growth And Development ◽  
Oil Content ◽  
Oil Pollution ◽  
Phleum Pratense ◽  
Festuca Pratensis ◽  
Morphological Parameters ◽  
Meadow Fescue ◽  
Canary Grass ◽  
Phalaris Canariensis

Abstract. Purpose of the study: to study the effect of oil pollution on the morphological parameters of cereal grasses: canary grass, timothy grass and meadow fescue. Tasks: assessment of the impact of oil pollution of soils on seed germination, growth and development of the studied species by morphological parameters; analysis of the species variability of the studied indicators. Oil-contaminated high-moor peat was used as a substrate. Objects of research: seeds of cereal grasses: meadow timothy Phleum pratense L, 1753, meadow fescue Festuca pratensis Huds, canary grass Phalaris canariensis. Evaluation of the effect of oil-contaminated soil was carried out on the basis of changes in seed germination and morphological parameters: plant mass, leaf length, length and number of roots. The experimental results were processed by the method of variation statistics. As a result of studying the effect of oil-contaminated peat on seed germination, it was found that in the variants of the experiment with the minimum oil content, no differences were noted with the control values. The maximum concentration of oil (10,000 mg / kg) reduced seed germination by 924%. With an increase in the oil content in the soil, the morphometric parameters of all the studied species of cereal grasses also decreased. The greatest differences in the studied test functions, in comparison with the control variant, were noted in canary grass, the smallest in meadow fescue.

Sign in / Sign up

Export Citation Format

Share Document