scholarly journals Growth and development of Carthamus tinctorius L. in the conditions of Transnistria

2021 ◽  
pp. 218-221
Author(s):  
K. V. Mustyatse ◽  
N. S. Chavdar ◽  
O. M. Zagorodnyaya
Keyword(s):  
Soil Layer ◽  
Unknown Origin ◽  
Sowing Date ◽  
Botanical Garden ◽  
Carthamus Tinctorius ◽  
Sowing Time ◽  
The Past ◽  
Sowing Period ◽  
Number Of Seeds ◽  
Number Of Branches

Carthamus tinctorius L. is a plant, that is used for oil production and dyeing, and also used for medical purposes and cosmetology. A distinctive biological feature of this plant is its high drought resistance. In the process of global warming the increase in air temperature in Transnistria over the past 70 years amounted to 1,2…1,3 °C, the increase in soil temperature over the past 20 years in the observed soil layer 0,2…3,2 m amounted 0,8…1,2 °C. In this regard the intercalation of drought resistant crops, such as Carthamus tinctorius L., into agricultural production is relevant. The dura- tion of the growing season of a Carthamus tinctorius L. collection specimen of unknown origin in the Republican Botanical Garden (in the town of Tiraspol) when sown in middle of April for the period from the year of 2008 to the year of 2017 ranged from 103 to 113 days. In the conditions of Transnistria in the year of 2020 for the first time the influence of sowing time of Carthamus tinctorius L. on the development of a complex of features was studied. Sowing of Carthamus tinctorius was carried out five times: the 20th and the 27th of March, the 3rd and the 14th of April, the 2nd of May. The study of the influence of the sowing time showed decreasing values of the complex of features with later sowing time of Carthamus tinctorius L. The mostly significant decreased with a later sowing time were such features as the number of branches of the first and the second level, the number of seeds in the inflorescence, the number of seeds per plant. The best sowing date in the conditions of an acute drought in the year of 2020 was the first sowing time on the 20th of March. The value of the features in this sowing period was: plants’ height — 55 cm, the number of branches of the first level — 8,7 pieces, the number of branches of the second level — 4,6 pieces, the number of inflorescences per plant — 14,1 pieces, the number of seeds in the inflorescence — 7,0 pieces, the number of seeds per plant — 64,8 pieces.

scholarly journals Effect of sowing date and plant spacing on seed production of cauliflower

2015 ◽  
Vol 40 (3) ◽  
pp. 491-500
Author(s):  
MF Hossain ◽  
N Ara ◽  
MR Uddin ◽  
MR Islam ◽  
MG Azam
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Agricultural Research ◽  
Sowing Date ◽  
Research Station ◽  
Plant Spacing ◽  
Sowing Dates ◽  
North Western ◽  
Number Of Seeds ◽  
Number Of Branches

The experiment was conducted at Regional Agricultural Research Station, Ishurdi, Pabna during rabi season of 2011-2012 and 2012-2013 to find out the appropriate sowing date and optimum plant spacing for seed production of cauliflower (var. BARI Phulcopi-1). Four sowing dates viz. 20 September, 1 October, 10 October and 20 October and three plant spacing viz. 60 cm × 50 cm, 60 cm × 60 cm and 60 cm × 70 cm were used as treatment variables. Significant variation in seed yield and yield contributing characters of cauliflower were observed due to execution of different sowing dates and plant spacing. Number of branches plant-1, number of pods plant-1 and number of seeds pod-1 showed the highest in 1 October sowing as a result the highest seed yield (361.69 kgha-1) was obtained from same date of sowing. Sowing on 10 October and 20 October reduced seed yield drastically compared to that obtained from 1 October sowing. The lowest seed yield (188.54 kgha-1) was obtained from 20 October sowing. On the contrary, closer spacing (60 cm × 50 cm) produced the highest seed yield (315.88 kgha-1) and the wider spacing (60 cm × 70 cm) produced the lowest seed yield (254.07 kgha-1). However, combination of 1 October sowing with 60 cm × 50 cm plant spacing produced the highest seed yield (414.81 kgha-1) due to higher number of seeds pod-1. The seed yield decreased after 10 October sowing irrespective of plant spacing. So, early sowing (1 October) with closer spacing (60 cm× 50 cm) would be economically profitable for cauliflower seed production in North-Western part of Bangladesh.Bangladesh J. Agril. Res. 40(3): 491-500, September 2015

scholarly journals Dynamics of the availability of available moisture in soil by optimization of sowing time and density of statement of sunflower plants in the Right-Bank Steppe of Ukraine

2020 ◽  
Vol 2 (3) ◽  
pp. 68-77
Author(s):  
Hennadii Pinkovskyi ◽  
Semen Tanchyk
Keyword(s):  
Crop Yields ◽  
Soil Layer ◽  
Weather Conditions ◽  
Sowing Time ◽  
Flowering Phase ◽  
The Right ◽  
Sowing Period ◽  
Favorable Conditions ◽  
To Receive

Abstract. The article presents the results of scientific researches on the influence of sowing time and density of standing of sunflower plants on the dynamics of the content of available moisture in soil in the conditions of the Right-bank Steppe of Ukraine. One of the decisive factors for the achievement of high and sustainable crop yields in the conditions of unstable moistening of the Right-Bank Steppe of Ukraine is the accumulation and rational use of moisture, which is one of the most important unregulated factors limiting the yield. On average, during the years of research, the most available moisture in the 0-10 cm soil layer was in the first sowing period - when it was heated to a depth of seed 5 - 60C and was 25.0 mm. It was found that the moisture available to plants in the meter layer of soil at the time of sowing remained high and significantly influenced the dynamics of emergence of seedlings. On average, during the years of research, the most available moisture in the 0-100 cm soil layer was during the first sowing period - for warming it to a depth of seed 5 - 60C - 178.6 mm. In such conditions, quite favorable conditions of moistening of the sowing layer of soil are created in order to receive friendly and complete seedlings when sowing in the first - second decade of April. However, at the end of the third decade of April, there is a significant decrease in gross moisture reserves in the sowing and deeper layers of soil, which limits the productivity of crops. Of particular importance for sunflower plants is the content of available moisture in the 0 - 100 cm layer of soil after the formation of baskets. During this period, the sunflower intensively consumes the available moisture from the deeper layers of soil. Analyzing the results of the research, it should be noted that in most cases, a higher seed yield in sunflower hybrids was formed in those variants where the period from the formation of the basket to flowering occurred in June or the first decade of July, regardless of the year of fall medium long-term indicators. It was also found that the moisture available to plants in the meter layer of soil in the flowering phase was different during the years of research and varied in terms of sowing and depended on the density of plants. The highest moisture reserves available to the plants in the soil layer were 0-100 cm, in the crops of Forward hybrids, LG 56.32, LG 54.85, LG 55.82 were at planting densities of 60 thousand hectares, at the first sowing period - in the flowering phase - 127 mm.  The optimal sunflower sowing period for LG 55.82 and LG 54.85 hybrids in the Right Bank steppe is soil warming up to a depth of seed 5-60C, for Forward and LG 56.32 hybrids is warming up to, a depth of seed 9-100C, optimal density - 60 thousand on ha. Under these conditions, the LG 55.82 hybrid produced a yield of 3.85 t / ha, the LG hybrid 54.85 - 3.64 t / ha, the Forward - 3.09 t / ha, the LG hybrid 56.32 - 3.62 t / ha. Taking into account the annual variation of weather conditions of spring sowing, it should be differentiated with regard to water and heat regimes.

scholarly journals Productivity and economic efficiency of growing sunflower depending on the sowing time and plant density in the Right-Bank Steppe of Ukraine

2020 ◽  
pp. 115-123
Author(s):  
H. Pinkovskyi ◽  
S. Tanchyk
Keyword(s):  
Plant Density ◽  
Soil Layer ◽  
Soil Nutrient ◽  
Optimal Time ◽  
Sowing Time ◽  
Sowing Dates ◽  
Net Profit ◽  
The Right ◽  
Sowing Period ◽  
Favorable Conditions

The article covers the results of research on the management of elements of technology and the influence of factors on the productivity of sunflower. The field experiment was conducted in the experimental field of IAS NAAS Kirovohrad region. The level of sunflower productivity is determined by the conditions of water and nutrient regimes of soil. According to the results of research it was established that at the time of sowing reserves of available moisture in 0–100 cm of the soil layer were the largest during the first sowing period and amounted to 178.6 mm. Such moisture reserves create favorable conditions for moistening the seed layer of soil to obtain friendly and full seedlings when sowing in the first – second decade of April. The use of moisture by sowing sunflowers can be regulated by sowing dates to some extent. Shifting sowing dates to earlier ones makes it possible to change the conditions of growth and development of sunflower plants, namely, the plants are better provided with moisture, and it is possible to avoid critical temperature periods of plant development. The high reserves of productive moisture for plants in 0–100 cm soil layer, in crops of Forward, LG 56.32, LG 54.85, LG 55.82 hybrids were for plant density of 60 thousand per hectare, at the first sowing period – in the flowering phase they were 127 mm. The content of nutrients the soil changed both over the years and under the influence of different fertilizer backgrounds. Application of nitrogen, phosphorus, potassium fertilizers in the dose of N40P40K40 and N40P40K40 + by-products of the predecessor allows to increase the content of nutrients available to plants in soil and to increase soil fertility. Due to economic indicators, the optimal time of sunflower sowing for hybrids LG 55.82 and LG 54.85 is warming soil at the depth of seed wrapping up to 5–6 °C, for hybrids Forward and LG 56.32 is warming soil at the depth of seed wrapping up to 9–10 °C, optimal density – 60 thousand/ha. In such conditions, the LG 55.82 hybrid formed the highest yield – 3.85 t/ha, LG 54.85 hybrid – 3.64 t/ha, Forward – 3.09 t/ha, LG 56.32 hybrid – 3.62 t/ha. Key words: sunflower, soil nutrient regime, water regime of soil, yield, profitability, net profit.

scholarly journals THE REACTION OF THE SPRING RAPE ON PRE-SOWING TREATMENT OF SEEDS BY INSECTICIDE AND SOWING DATE BY CROPS FORMATION

2018 ◽  
Vol 13 (4) ◽  
pp. 10-15
Author(s):  
Эльмира Вафина ◽  
El'mira Vafina ◽  
Ильдус Фатыхов ◽  
Ildus Fatykhov
Keyword(s):  
Seed Treatment ◽  
Sowing Date ◽  
Early Spring ◽  
Late Spring ◽  
Sowing Time ◽  
Sowing Seed ◽  
Sowing Period ◽  
Early Late ◽  
Spring Rape

During three vegetation periods (2015-2017), the effect of presowing seed treatment with insecticide and the sowing time on seed productivity and quality of spring rape of Accord variety was studied. Pre-sowing seed treatment was carried out 2 ... 3 days before the planting by Tabu insecticide (active substance - imidacloprid), VSK. Rape was sown at different times: early spring (perhaps early - after 5 days from it), medium spring - after 10-15 days possible early, late spring — after 20-25 days from possibly early. The experiments were laid on the sod-medium-podzolic medium loamy soil, the arable layer of moderate cultivation. The early spring period provided a longer rapeseed growing season (an average of 112 days over three years) and a relatively high seed yield of –235 g/m2. The yield advantage at the early spring sowing period is due to the greater 161 pcs per ton of plant standing before harvesting and plant productivity of 1.48 g. productive plants (164 pieces/m2). When sowing rape in medium spring and late spring, preseeding application of insecticide did not affect the yield. Sowing rape in the early and medium spring periods contributed to obtaining seeds with a higher fat content of 45%. The gross yield of fat was the highest 106 g/m2 when sowing rape in the early spring.

scholarly journals Influence of Sowing Time on Yield and Yield Components of Spring Rapeseed in Lithuania

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2170
Author(s):  
Lina Marija Butkevičienė ◽  
Zita Kriaučiūnienė ◽  
Rita Pupalienė ◽  
Rimantas Velička ◽  
Silvija Kosteckienė ◽  
...  
Keyword(s):  
Yield Components ◽  
Seed Weight ◽  
Sowing Date ◽  
Meteorological Conditions ◽  
Sowing Time ◽  
Similar Time ◽  
Experimental Station ◽  
Sowing Dates ◽  
Seed Yields ◽  
Number Of Seeds

Sowing time, as an element, is important to improving the adaptation of cultivars to environmental conditions and to achieving high seed yields. The field experiment was conducted from 2018–2019 at the Experimental Station of Vytautas Magnus University Agriculture Academy. The experimental design included treatments with different sowing dates: eight sowing dates in 2018 and 10 sowing dates in 2019. The first sowing of spring rapeseed was carried out when the soil reached its physical maturity, i.e., it did not stick to agricultural implements and it crumbled well. The other sowing dates were every seven subsequent days. From 2018–2019, the rapeseed emerged as best in early May (3 and 4 May), and later sowing reduced the emergence of rapeseed. In 2018, most pods were formed on one plant when the rapeseed was sown (on 1 June), compared to other sowings, on average 2.8 times more. In 2019, most pods were formed by the latest-sown rapeseed (7 June), from 1.4 to 2.7 times more compared to previously sown crops. In 2018, the sowing time of spring rapeseed did not have a significant effect on the number of seeds in one pod. In 2019, it was found that the rapeseed formed most of the seeds in the pod at a similar time as in 2018: the sowings of 19 April and 7 June. The average number of seeds in the pod was significantly reduced by early sowing (5 April). In 2019, the highest 1000-seed weight was found at the earliest-sown crop (5 April), which was on average 18.0% higher compared to the later sowings. The 1000-seed weight of the last-sown rapeseed (7 June) was the lowest. In 2018, the yields of early-sown (20 April) spring rapeseed were the highest. Later sowing significantly reduced the yields by 20.7 to 48.2%. In 2019, the highest seed yield was obtained after sowing spring rapeseed in late April (26 April); it was significant, on average, 1.9 times higher than the yields of spring rapeseed sown from 3 May to 7 June. Meteorological conditions had a stronger effect on the field emergence and yield components of spring rapeseed than the sowing date.

Primordium initiation at the shoot apex in four contrasting varieties of spring wheat in response to sowing date

1979 ◽  
Vol 93 (1) ◽  
pp. 203-215 ◽  
Author(s):  
W. R. Stern ◽  
E. J. M. Kirby
Keyword(s):  
Spring Wheat ◽  
Growth Period ◽  
Sowing Date ◽  
Main Shoot ◽  
Sowing Time ◽  
Wheat Varieties ◽  
Number Of Leaves ◽  
Almost All ◽  
Sowing Period ◽  
The Way

SUMMARYThe spring wheat varieties Kolibri, a typical north temperate variety, Pitic 62, a Mexican variety known to respond to vernalization and two selections from the Institute's breeding programme TW 161 and TJB 155 were sown early (2–5 March), during the normal sowing period (27 March) and late (17 April). Primordium initiation was observed until the time of terminal spikelet initiation and the number of leaves and the number of spikelets were analysed in terms of rate and duration of leaf and spikelet primordium initiation. The rate of leaf initiation was affected by time of sowing but not in a systematic way and there were differences between varieties in the way in which the number of leaves changed in response to sowing time. The rate of spikelet initiation increased and the duration decreased with later sowing. There were strong variety × time of sowing interactions. For almost all characters measured, Pitic 62 responded least to time of sowing. Varieties differed in the way in which the number of spikelets per ear responded to time of sowing but in all cases the changes were only small. This waa because the change in the rate of spikelet initiation was almost exactly compensated for by a change in the duration of spikelet initiation. In each variety, the period from terminal spikelet initiation to ear emergence was similar in all sowing treatments and was of similar duration in the main shoot and in the ear-bearing tillers.The number of leaves per shoot on the tillers was less than the number of leaves on the main shoot and the rate of spikelet primordium initiation of the tillers was faster than in the main shoot. These changes tended to synchronize the time of terminal spikelet initiation. Because of the changes in the number of leaves per shoot and the rate of spikelet initiation the number of spikelets borne on the main shoot and the tillers were similar although the growth period of the tillers was shorter than that of the main shoot.

A 200-Year History of the Study of Childhood Language Disorders of Unknown Origin: Changes in Terminology

2020 ◽  
Vol 5 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Laurence B. Leonard
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Scientific Literature ◽  
Language Disorder ◽  
Language Disorders ◽  
Unknown Origin ◽  
Developmental Language Disorder ◽  
The Past ◽  
History Of ◽  
The Many

Purpose The current “specific language impairment” and “developmental language disorder” discussion might lead to important changes in how we refer to children with language disorders of unknown origin. The field has seen other changes in terminology. This article reviews many of these changes. Method A literature review of previous clinical labels was conducted, and possible reasons for the changes in labels were identified. Results References to children with significant yet unexplained deficits in language ability have been part of the scientific literature since, at least, the early 1800s. Terms have changed from those with a neurological emphasis to those that do not imply a cause for the language disorder. Diagnostic criteria have become more explicit but have become, at certain points, too narrow to represent the wider range of children with language disorders of unknown origin. Conclusions The field was not well served by the many changes in terminology that have transpired in the past. A new label at this point must be accompanied by strong efforts to recruit its adoption by clinical speech-language pathologists and the general public.

Second international scientific conference «Present fundamental problems of vegetation classification» (Yalta, 15–20 September 2019)

2019 ◽  
pp. 135-142
Author(s):  
K. V. Ivanova ◽  
A. M. Lapina ◽  
V. V. Neshataev
Keyword(s):  
Plant Communities ◽  
National Archive ◽  
Botanical Garden ◽  
Vegetation Classification ◽  
Scientific Conference ◽  
Scientific Journals ◽  
Time Dynamics ◽  
The Past ◽  
Research Organizations

The 2nd international scientific conference «Fundamental problems of vegetation classification» took place at the Nikitskiy Botanical Garden (Yalta, Republic of Crimea, Russia) on 15–20 September 2019. There were 56 participants from 33 cities and 43 research organizations in Russia. The conference was mostly focused on reviewing the success in classification of the vegetation done by Russian scientists in the past three years. The reports covered various topics such as classification, description of new syntaxonomical units, geobotanical mapping for different territories and types of vegetation, studies of space-time dynamics of plant communities. The final discussion on the last day covered problems yet to be solved: establishment of the Russian Prodromus and the National archive of vegetation, complications of higher education in the profile of geobotany, and the issue of the data leakage to foreign scientific journals. In conclusion, it was announced that the 3rd conference in Nikitskiy Botanical Garden will be held in 2022.

scholarly journals Effect of sulphur on the seed yield and oil content of sesame (Sesamum indicum L.)

2019 ◽  
Vol 17 (1) ◽  
pp. 33-38
Author(s):  
Swapan Kumar Paul ◽  
Mosa Morsheda Khatun ◽  
Md Abdur Rahman Sarkar
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Dry Matter ◽  
Oil Content ◽  
Dry Matter Production ◽  
Production Plant ◽  
Matter Production ◽  
Stover Yield ◽  
Number Of Seeds ◽  
Number Of Branches

Sulphur is a component of plant amino acids, proteins, vitamins, and enzyme structures which influence the productivity of oil seed and total oil content. The experiment was conducted to find out the effect of sulphur on the seed yield and oil content of sesame in Bangladesh. The experiment comprised three varieties of sesame viz. Binatil-2, Binatil-3 and BARI Til-4 and six levels of sulphur (S) viz. 0, 10, 20, 30, 40 and 50 kg S ha–1. The experiment was laid out in a randomized complete block design with three replications. Dry matter production, crop characters, yield components, seed yield and oil content were significantly influenced by variety, level of sulphur and their interaction. The highest dry matter production plant–1 at 50 DAS (17.56 g), plant height (101.3 cm), number of branches plant–1 (3.66),  number of pods plant-1 (41.56), number of seeds pod-1 (58.83),  seed yield    (747.2 kg ha-1), stover yield (2243.0 kg ha–1) and oil content (40.03%) were obtained in BARI Til-4 while the corresponding lowest values of all parameters were recorded in Binatil-2. In case of sulphur application, the highest dry matter production plant–1 at 50 DAS (20.81 g), plant height (109.7 cm), number of branches plant–1 (3.87),  number of pods plant–1 (46.13),  number of seeds pod-1 (56.67),  seed yield (800.0 kg ha–1), stover yield (2787 kg ha–1 ) and oil content (43.97%) were obtained when crop was fertilized with 30 kg S ha–1 while the lowest seed yield (502.2 kg ha–1), stover yield (1550.0 kg ha–1) and oil content (32.80%) were obtained in control (0 kg S ha–1). BARI Til-4 fertilized with 30 kg S ha–1 produced the highest dry matter plant–1 at 50 DAS (24.80 g), number of pods plant–1 (51.13), seeds pod–1 (62.0) and seed yield (1011.0 kg ha–1). The highest oil content (43.97%) was also recorded in BARI Til-4 fertilized with 30 kg S ha–1, which was as good as that of BARI Til-4 fertilized with 40 kg S ha–1. Therefore, BARI Til-4 fertilized with 30 kg S ha–1 can be considered as a promising practice in respect of seed yield and oil content of sesame in Bangladesh. J. Bangladesh Agril. Univ. 17(1): 33–38, March 2019

Pyogenic Liver Abscess in Normal Children With Fever of Unknown Origin

PEDIATRICS ◽  
1976 ◽  
Vol 58 (4) ◽  
pp. 614-616 ◽  
Author(s):  
Sheldon L. Kaplan ◽  
Ralph D. Feigin
Keyword(s):  
Abdominal Pain ◽  
Liver Abscess ◽  
Fever Of Unknown Origin ◽  
Unknown Origin ◽  
Pyogenic Liver Abscess ◽  
Liver Function Tests ◽  
Blood Cultures ◽  
Normal Children ◽  
The Past ◽  
Liver Abscesses

Solitary pyogenic hepatic abscesses were identified as the cause of fever, abdominal pain, and hepatomegaly in two otherwise normal children who were seen at St. Louis Children's Hospital during the past year. Liver function tests were normal and blood cultures were negative in both patients. These cases illustrate that pyogenic liver abscess may occur in normal children and should be considered whenever fever of unknown origin is associated with abdominal complaints. Only in this way can we hope to improve upon the results cited previously, namely that the majority of liver abscesses remain undiagnosed during life.

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