Growing of white clover for seed purposes in the Kirov region

2021 ◽  
Vol 1 ◽  
pp. 86-88
Author(s):  
E.I. Kuzmin ◽  
Keyword(s):  
Seed Yield ◽  
White Clover ◽  
Pure Form ◽  
Podzolic Soils ◽  
Green Mass ◽  
Second Year Of Life ◽  
Second Year

The results of studies on the formation of seed herbage of white clover varieties Lugovik of the second year of life are presented, the productivity of herbage and seed yield in variants of experiment is given. The yield of green mass differs significantly over the years. This is due to the fact that in 2020 the herbage dried up on the root, it became possible to get good hay. Of all the variants, the highest yield of seeds was collected from plots where white clover grew in its pure form, the lowest yield was in a mixture of white clover with pasture ryegrass. Thus, the cultivation of white clover "Lu-govik" in the conditions of sod-podzolic soils of the Kirov region is more effective in its pure form.

New variety of white clover — “Izumrud”

2019 ◽  
Author(s):  
О. Тимошкина ◽  
О. Тимошкин
Keyword(s):  
Seed Yield ◽  
High Resistance ◽  
White Clover ◽  
Crude Protein ◽  
Weather Conditions ◽  
Forage Production ◽  
New Variety ◽  
Variety Trial ◽  
Green Mass ◽  
Trifolium Repens L

Исследования выполнены в Пензенской области в 2014 2018 годах. Клевер ползучий (Trifolium repens L.) многолетнее травянистое растение, которое можно использовать для коренного улучшения состояния лугов и пастбищ. Цель селекционной работы с клевером ползучим в Пензенском НИИСХ создание сорта с урожайностью зелёной массы 14 16 т/га, устойчивой семенной продуктивностью (150 250 кг/га), выдерживающего трёхчетырёхкратное стравливание или скашивание, переносящего кратковременную засуху, пригодного к механизированной уборке семян. Представлена характеристика нового сорта клевера ползучего Изумруд, переданного в 2018 году на государственное сортоиспытание. Метеорологические условия отличались по годам исследования, что позволило достаточно полно оценить перспективность сортобразца. По результатам трёх циклов конкурсного испытания (2015 2017 годы) урожайность зелёной массы нового сорта Изумруд составила 19,48 т/га, сбор сухого вещества 4,34 т/га, урожайность семян 151 кг/га, что на 13,7, 18,4 и 18,9 выше стандарта ВИК 70 соответственно. Содержание сырого протеина в сухом веществе составило 22,4 26,9, клетчатки не превышало 27 31. Повреждаемость вредителями слабая, поражаемость бурой пятнистостью и мозаикой клевера ползучего слабая, ниже стандартного сорта. Сорт высокоустойчив к корневым гнилям, раку клевера, аскохитозу. Сорт Изумруд пригоден к механизированной уборке семян. Высокая засухоустойчивость (5 баллов) и зимостойкость (96 100) нового сорта позволяет рекомендовать его для сенокосного и пастбищного использования во всех зонах распространения культуры. Экономический эффект при использовании на кормовые цели составляет 11,2 тыс. руб./га, на семена 7,2 тыс. руб./га. The investigation took place in the Penza region in 2014 2018. Breeding of a new white clover variety aimed at the development of a genotype that had green mass productivity of 14 16 t ha1, stable seed yield of 150 250 kg ha1, high resistance to triple or quadruple cutting, shorttime drought and automized harvesting. This paper gives the description of white clover Izumrud that was sent to the State variety trial in 2018. The variety was tested under the different weather conditions. Three years of the competitive variety trial (2015 2017) showed that its green mass productivity amounted to 19.48 t ha1, dry matter (DM) content 4.34 t ha1, seed yield 151 kg ha1, exceeding the standard variety (VIK 70) by 13.7, 18.4 and 18.9, respectively. Crude protein content was 22.4 26.9, fiber up to 27 31. Izumrud also exceeded VIK 70 in tolerance to pests, Pseudopeziza trifolii and mosaic virus. The variety had high resistance to root rot, clover wilt and Ascochyta leaf spot. It tolerated automized harvesting, drought and cold and was recommended for farm cultivation. Its economic efficiency amounted to 11.2 thousand RUB ha1 under forage production and 7.2 thousand RUB ha1 under seed production.

scholarly journals Biological products of the associative group in adaptive technology of cultivation of Scarlet amaranth and Poterium polygama in the conditions of forest steppe of the middle Volga region

2020 ◽  
pp. 20-24
Author(s):  
Anna Nikolaevna Kshnikatkina ◽  
Elena Aleksandrovna Zueva ◽  
Inna Aleksandrovna Voronova ◽  
Anna Anatolyevna Belyaeva
Keyword(s):  
Leaf Area ◽  
Seed Yield ◽  
Dry Matter ◽  
Exchange Energy ◽  
First Year ◽  
Biological Products ◽  
The Third ◽  
Green Mass ◽  
Digestible Protein ◽  
Second Year

In the course of studies, it was found that taking inoculation of Scarlet amaranth and Poterium polygama seeds with biologics has a positive effect on the formation of photosynthesis parameters. In amaranth agrocenoses during the panicle sweeping phase, the leaf surface area was significantly higher when seeds were inoculated with biological products than in the control variant for Kizlyarets cultivar by 23.1-36.3% and Valentina cultivar by 23.8-38.0%, the most effective the method was exogenous seed treatment with agric. The maximum parameters of photosynthesis were noted during seed maturation. So, on average for three years of research, the leaf area of the Kizlyarets variety was 64.1 and the Valentine variety 62.3 thousand m2 / ha, the photosynthetic potential, respectively, was 2.05 and 1.98 million m2 days / ha, the net productivity of photosynthesis - 8.56 and 7.66 g / m2 per day. The most intensive increase in the leaf area in the crops of the blackhead was noted in the budding phase, according to the experimental variants, it amounted to 40.8-45.3 thousand m2 / ha in the first year of use, and 41.9-46.8 thousand m2 in the second year of use / ha, in the third year of use - 42.8-47.4 thousand m2 / ha On average, over three years the largest collection of dry matter (6.9 t / ha), feed units (9.1 t / ha), digestible protein (1.45 t / ha) and metabolic energy (81.6 GJ) were obtained from Kizlyarets varieties when inoculating seeds with Agrika biological product. At the same time, the highest seed yield was obtained (1.31 t / ha), which is 2.39 times higher than the control variant and 1.44 times higher than the Valentina variety. Optimization of the plant’s mineral nutrition by seed inoculation with associative bacterial preparations provided for an increase in the productivity of the polygamous monofil. The yield of green mass of the Poterium polygama of the first year of use for an average of three years according to the experimental options was 28.5–31.8 t / ha, collection of dry matter – 7.3–8.2 t / ha, feed units – 4.36–4.87 t / ha, digestible protein - 0.56–0.65 t / ha, exchange energy - 88.7–99.6 GJ. The highest productivity of the blackhead was when treating seeds with Agrika with microelements together with Azotobacter: green mass - 31.8 t / ha, dry matter collection - 8.2 t / ha, feed units - 4.87 t / ha, digestible protein – 0.65 t / ha, exchange energy - 99.6 GJ, which significantly exceeds the performance of the control option. The treatment of seeds with biologics provided an increase in the seed productivity of the polygonidae by 91.7–223.1 kg / ha (10.1–24.6%). The highest seed yield in the first year of use is 1130.1 kg / ha, the second year of use is 1258.9 kg / ha, the third year of use is 1268.3 kg / ha, which significantly exceeds the control indicators by 27.3% and 27.8% was obtained during bacterization of seeds with Agrika, enriched with microelements and together with Azotobacter.

scholarly journals The key to successful second year white clover seed crops

1996 ◽  
Vol 6 ◽  
pp. 40-40
Author(s):  
B.L. Mccloy ◽  
S.R. White
Keyword(s):  
Seed Yield ◽  
White Clover ◽  
Block Design ◽  
First Year ◽  
Flower Number ◽  
Mature Flower ◽  
Second Year ◽  
Clover Seed ◽  
Seed Crops ◽  
Rotary Type

In recent years there has been an increase in the number of white clover seed crops taken for a second harvest. Traditionally yields from second year crops are substantially lower than first year crops. A trial was established investigating techniques to increase yields in second year crops. The trial was located in a dryland crop of white clover (cv. Grasslands Demand) 4 km east of Methven, mid Canterbury. It involved 10 herbicide treatments and 8 'inter-row' treatments arranged in a split block design. Number of mature flower heads were recorded on all treatments at harvest as an indirect estimate of yield. Additionally, selected treatments were cut and collected using a rotary type mower, threshed, and machine dressed for direct estimates of seed yield. Flower number and machine dressed seed yield were significantly (P

Effects of broiler shed litter on the establishment and growth of perennial pasture on infertile acid podzolic soils

1980 ◽  
Vol 20 (106) ◽  
pp. 576
Author(s):  
MG Temple-Smith
Keyword(s):  
Soil Fertility ◽  
White Clover ◽  
Initial Rate ◽  
Subterranean Clover ◽  
Inorganic Fertilizer ◽  
Residual Effects ◽  
Podzolic Soils ◽  
Herbage Yield ◽  
Second Year ◽  
Infertile Soils

The effect of applying broiler shed litter, at rates of 2-32 t ha-1, on the establishment and growth of perennial pasture was compared with that of a molybdate/superphosphate/potash fertilizer on two infertile podzolic soils on Tasman Peninsula, Tasmania. Broiler litter had little effect on the establishment of the sown species although white clover establishment was depressed at the highest rate. Herbage yield in the first spring was increased from 1.5-8.0 t DM ha-1 as the rate of litter, applied before sowing, increased from 2-32 t ha-1. Residual effects of the 32 t ha-1 dressing doubled herbage production in the second year in comparison with the 2 t ha-1 litter dressing but residual effects of the 4 and 8 t ha-1 dressings were small. In both years, yields from plots initially receiving inorganic fertilizer or 2 t ha-1 of litter were similar. In the second year the proportion of sown grass increased, and the proportion of weeds decreased, as the initial rate of litter increased from 4-32 t ha-1. The propotion of both white and subterranean clover was also reduced, but only at the highest rate of litter. Irrespective of the initial treatments, a maintenance dressing of litter at 2 t ha-1 at the beginning of the second year slightly increased the proportion of sown grass but halved the legume component in comparison with a maintenance dressing of 250 kg ha-1 of superphosphate. The data indicate that on these infertile soils litter at 2 t ha-1 can replace the inorganic fertilizer recommended for pasture establishment but that superphosphate rather than litter should be applied in the second year to encourage clover growth, and thus build up soil fertility.

DEVELOPMENT OF VLBW PREMATURES IN THE SECOND YEAR OF LIFE

2006 ◽  
Vol 37 (S 1) ◽  
Author(s):  
E Rodríguez ◽  
M Bellotti ◽  
S Liendo ◽  
S Napoli ◽  
MM Contreras ◽  
...  
Keyword(s):  
Second Year Of Life ◽  
Second Year

Evaluation of Visuospatial Short-term and Working Memory from the First to Second Year of Life: A Novel Task

2021 ◽  
pp. 1-17
Author(s):  
C. Fernandez-Baizan ◽  
Miguel Angel Prieto ◽  
J. A. Martinez ◽  
J. L. Arias ◽  
M. Mendez
Keyword(s):  
Working Memory ◽  
Short Term ◽  
Second Year Of Life ◽  
Second Year

Understanding Interest in the Second Year of Life

Infancy ◽  
2010 ◽  
Vol 15 (3) ◽  
pp. 324-335 ◽  
Author(s):  
Amy C. MacPherson ◽  
Chris Moore
Keyword(s):  
Second Year Of Life ◽  
Second Year

Longitudinal trajectories of gestural and linguistic abilities in very preterm infants in the second year of life

2011 ◽  
Vol 49 (13) ◽  
pp. 3677-3688 ◽  
Author(s):  
Alessandra Sansavini ◽  
Annalisa Guarini ◽  
Silvia Savini ◽  
Serena Broccoli ◽  
Laura Justice ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Very Preterm Infants ◽  
Very Preterm ◽  
Longitudinal Trajectories ◽  
Second Year Of Life ◽  
Second Year

Life cycle of the western school prawn, Metapenaeus dalli Racek, in a Western Australian estuary

1986 ◽  
Vol 37 (1) ◽  
pp. 95 ◽  
Author(s):  
IC Potter ◽  
JW Penn ◽  
KS Brooker
Keyword(s):  
Life Cycle ◽  
Western Australia ◽  
Sexual Maturity ◽  
Second Year Of Life ◽  
Second Year ◽  
Australian Estuary ◽  
Western Australian

The absence of marine records for M. dalli below latitude 31�S., together with data on gonadal stages and spermatophore deposition on females of this species in the Swan estuary, provide very strong indications that the western school prawn typically breeds in estuarine environments in south-western Australia. The 0 + recruits, which first appeared in samples in February, remained in the estuary during the following months and by November had reached a size suitable for exploitation. At this time they were approaching sexual maturity and were starting to move from the shallows to the deeper waters of the estuary where they remained for their second year of life. In contrast to Australian Penaeus species, M. dalli mates during the intermoult period when the shell is hard rather than immediately after moulting.

Supplementary Checks on the Scales of Pink Salmon (Oncorhynchus gorbuscha) and Chum Salmon (O. keta)

1965 ◽  
Vol 22 (6) ◽  
pp. 1477-1489 ◽  
Author(s):  
H. T. Bilton ◽  
W. E. Ricker
Keyword(s):  
British Columbia ◽  
Chum Salmon ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Commercial Fisheries ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Clear Cut ◽  
Second Year Of Life ◽  
Second Year ◽  
Similar Incidence

Among 159 central British Columbia pink salmon that had been marked by removal of two fins as fry and had been recovered in commercial fisheries after one winter in the sea, the scales of about one-third showed a supplementary or "false" check near the centre of the scale, in addition to the single clear-cut annulus. This evidence from fish of known age confirms the prevailing opinion that such extra checks do not represent annuli, hence that the fish bearing them are in their second year of life rather than their third. Unmarked pink salmon from the same area, and some from southern British Columbia, had a generally similar incidence of supplementary checks. In both marked and unmarked fish the supplementary checks varied in distinctness from faint to quite clear. In a sample of scales of 14 double-fin marked chum salmon which were known to be in their 4th year, all fish had the expected 3 annuli, and 12 fish had a supplementary check inside the first annulus.

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