Evaluation of new onion variety in a hybrid plot in the conditions of the Central strip of Russia

Новые сорта и гибриды лука репчатого должны обладать необходимыми рынку хозяйственно ценными признаками, поэтому приоритетно направление по созданию гетерозисных гибридов этой культуры, проявляющих повышенную жизнеспособность, высокую и стабильную урожайность и выравненность, общую устойчивость к патогенам и хорошую лежкость. Цель исследований: изучение новых гибридных комбинаций лука репчатого по основным хозяйственно ценным признакам. Исследование проводили в 2019–2020 годах в отделе селекции и семеноводства ВНИИО – филиале ФГБНУ «Федеральный научный центр овощеводства» с постановкой опытов в открытом и хранилище с регулируемыми температурно-влажностными характеристиками (Раменский район Московской области). В опыте участвовало семь новых гибридных комбинаций лука репчатого, в качестве стандарта использовали гибрид F1 Премито (Monsanto) и отечественный сорт Форвард (совместной селекции агрофирмы «Поиск» и ВНИИО – филиала ФГБНУ ФНЦО). Посев проводили в III декаде апреля, из расчета 0,8 млн шт/га. В течение вегетационного периода вели фенологические учеты, биометрические измерения и проводили морфологическое описание согласно общепринятым методическим указаниям. Мероприятия по уходу за растениями проводили в соответствии с рекомендациями для зоны возделывания. Изучение морфологических признаков и биометрических показателей проводили по малой выборке (10 растений) каждого образца. Число зачатков определяли на поперечном разрезе луковицы. Интенсивность воскового налета на образцах оценивали визуально. Лук закладывали в хранилище с оборудованными холодильными установками, автоматически регулирующими температуру, влажность и циркуляцию воздуха. Для лучшей сохранности этой культуры поддерживали температуру в хранилище около 1–2 °C и относительную влажность воздуха – в пределах 75–80%. Результаты оценки новых образцов лука репчатого в условиях Московской области позволили выделить гибридную комбинацию 652/15 F1 (Шет × Ливингстон I3) с высокой урожайностью (59,5 т/га) и сохранностью в зимний период (84,7%), которая соответствует параметрам разработанной модели для условий региона и обладает конкурентными преимуществами. New varieties and hybrids of onion should have economically valuable characteristics necessary for the market, therefore, the priority is to create heterotic hybrids of this crop, showing increased viability, high and stable yield and alignment, general resistance to pathogens and good keeping quality. The purpose of the research: to study new hybrid combinations of onions according to the main economically valuable characteristics. The study was carried out in 2019–2020 in the Department of breeding and seed production of ARRIVG – branch of FSBSI FSVC with the staging of experiments in open ground and storage with adjustable temperature and humidity characteristics (Ramensky district of the Moscow region). Seven new hybrid combinations of onions participated in the experiment, the hybrid F1 Premito (Monsanto) and the domestic variety Forward (joint selection of the Poisk Agro Firm and ARRIVG – branch of FSBSI FSVC) were used as a standard. Sowing was carried out in the third decade of April, at the rate of 0.8 million pcs/ha. During the growing season, phenological records, biometric measurements were carried out and morphological description was carried out according to generally accepted methodological guidelines. Plant care measures were carried out in accordance with the recommendations for the cultivation zone. The study of morphological features and biometric indicators was carried out on a small sample (10 plants) of each sample. The number of rudiments was determined on a cross section of the bulb. The intensity of wax plaque on the samples was assessed visually. Onions were placed in storage with equipped refrigeration units that automatically regulate temperature, humidity and air circulation. For the best preservation of this culture, the temperature in the storage was maintained at about 1–2 °C and the relative humidity in the range of 75–80%. The results of the evaluation of new onion samples in the conditions of the Moscow region allowed us to identify a hybrid combination 652/15 F1 (Shet × Livingston I3) with high yield (59.5 t/ha) and preservation in winter (84.7%), which corresponds to the parameters of the developed model for the conditions of the region and has competitive advantages.

Aspects regarding the trend of the average annual, seasonal and monthly drainage of river water from the Căliman Mountains in the period 1950-2010

The Căliman Mountains are the highest volcanic mountains in Romania, being positioned on the western side of the Eastern Carpathians, between their central strip (north and east), south – the Harghita Mountains, and west – the Transylvanian Depression. This positioning gives special features of the water drainage, with both spatial and temporal differentiations. This paper analyzed the trend of average drainage from rivers in the studied group for the period 1950-2010, both multi-annually and seasonally and in the extreme months; the months taken into account being those with the lowest flows (January), respectively the largest (May). To evaluate the mentioned parameters, we used the help of Excel MAKESENS (Mann-Kendall test for trend and Sen’s slope estimates), which identified the type of drainage trend (positive or negative), and using the Sen nonparametric method to estimate the slope of the trend. Based on the type of trend obtained, 9 trend classes were obtained, and with the help of the slope, the net change rate was obtained.

Temperature Conditions for Determination of Beekeeping Regions in the Light of Climate Change. Case study: Fars Province

The importance of the honey bee lays in its huge role in pollination and, as a result, maintaining the flora of the environment and also increasing agricultural production. Temperature is the most important element of the atmosphere affecting beekeeping. Results of stationary conclusions are generalized to the area of Fars province by using geographical information system (GIS) according to direct relationship between elevation changes and temperature variations. A beekeeping capability map was then drawn for the Fars province by months of the year. The results showed that heat conditions in four months of the year, from December to March, are not suitable in most of the northern and eastern parts of the province. The southern regions with an altitude of less than 1100 meters above sea level are considered as a suitable place for deployment, wintering and beginning of bee colony activities. The most optimal months of the year for honey bee activities are May and October. For fixed beekeeping, the central strip of the province with an average height of 1500 meters above sea level is the most suitable places.

Выращивание двурядника тонколистного в открытом грунте

Представлена технология выращивания двурядника тонколистного на примере ООО «Феличита», специализирующаяся на его промышленном выращивании в средней полосе России. В Московской области в открытом грунте семена высевают с мая до середины августа, в Тульской области – с конца апреля до конца августа с интервалом 7 суток. Продуктивность колеблется от 1,9 до 8,4 г/растение, урожайность – от 0,5 до 1,8 т/га за каждый цикл выращивания, общая урожайность превышает 35 т/га.The agrotechnology of the perennial wall-rocket is presented on the example of LLC Felichita, specializing in its industrial cultivation in the central strip of Russia. In the Moscow region in the open ground seeds are sown from May to mid-August, Tula region - from the end of April to the end of August by an interval of 7 days. The productivity varies from 1.9 to 8.4 g/plant, the yield is from 0.5 to 1.8 t / ha for each growing cycle, the total yield exceeds 35 t/ha.

EVALUATION OF A COLLECTION OF ONION ON THE GROUNDS OF A LEAF SOCKET AND BULB

In commodity farms, the technology of growing onions is sown by sowing seeds from a one-year crop. This, in turn, introduces new requirements for growing technology, technical means and, most importantly, for varieties and hybrids of onions. The average yield of onion in Russia is at a low level - 20-30 tons / ha. New varieties and hybrids must have precocity, high yield, resistance to diseases and pests, good crabness. The success of selection work, as is known, is largely determined by the source material. The priority is to create heterotic hybrids of onion, showing increased viability, high stable yield and leveling, general resistance to pathogens, increasing the content of vitamins, proteins, dry substances, increasing cold resistance, drought resistance, and keeping quality. In the department of selection and seed production of All-Russian Scientific Research Institute of Vegetable Growing – a branch of FSBSI FSVC is breeding onions for growing in the annual culture of the Central strip of Russia. The study was conducted in 2017 with the setting of experiments in the open field. In the collection nursery 24 samples of onions of different geographical origin were investigated: Russia, the Netherlands, Italy and the USA. During the study, phenological, biometric measurements and a morphological description of the samples were carried out. As a result of the study of a set of economically valuable traits, the following samples of onion were identified and involved in the work: Ermak, Stuttgarter Riesen, Sturon, Forward, Crx 2381 F1, Santero F1, Sandra F1, Lamyca F1, Bennito F1, Premium F1.

Slow-wave coplanar waveguides based on inductive and capacitive loading and application to compact and harmonic suppressed power splitters

In this paper, a slow-wave transmission line implemented in coplanar waveguide technology, based on simultaneous inductive and capacitive loading, is presented for the first time. The shunt capacitors are achieved by periodically etching transverse strips in the back substrate side, connected to the central strip through metallic vias. The series inductors are implemented by etching rectangular slots in the ground plane. The effect of these reactive elements is an enhancement of the effective shunt capacitance and series inductance of the line, leading to a significant reduction of the phase velocity (slow-wave effect). Consequently, the guided wavelength is also reduced, and these lines can be applied to the miniaturization of microwave components. Moreover, due to periodicity, these artificial lines exhibit stop bands (Bragg effect) useful for spurious or harmonic suppression. A compact harmonic suppressed power splitter, based on a slow wave 35.35 Ω impedance inverter, has been designed and fabricated in order to demonstrate the potential of the proposed approach. The length of the inverter is 48% the length of the conventional counterpart, and measured power splitting at the first (3f0) and second (5f0) harmonic frequencies is rejected more than 49 and 23 dB, respectively.