scholarly journals PHOTOSYNTHETIC PERFORMANCE INDICATORS OF VARIEGATED ALFALFA DEPENDING ON THE SOWING METHOD IN THE FOREST STEPPE OF THE MIDDLE VOLGA REGION

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
V.A. Gushchina ◽  
O.A. Timoshkin ◽  
G.N. Volodkina
Keyword(s):  
Leaf Area ◽  
Cover Crops ◽  
Photosynthetic Activity ◽  
Photosynthetic Performance ◽  
Volga Region ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Green Fodder ◽  
Biological Yield ◽  
Middle Volga

Undercrop cultivation of alfalfa is economically justified, since in the year of sowing, cover crops give a full harvest, and also one mowing of alfalfa for hay is carried out, moreover the special preparation of the soil for grasses is not re-quired. In the conditions of the Middle Volga region, the experiment was laid on leached chernozem in 2017 - 2019, where they studied the sowing of variegated alfalfa under the crops of spring wheat, barley, oats, harvested for grain and an-nual grasses - for green fodder, and studied the options for coverless sowing, where the weeds were mowed twice and the herbicide Pivot was applied at the beginning of alfalfa branching. The total biological yield is determined by the leaf area and its photosynthetic activity. Therefore, the purpose of the research is to determine the indicators of alfalfa photosynthetic activity for an objective as-sessment of the influence of cover crops on their forage productivity. It has been established that a more intensive increase in the assimilation surface of alfalfa in the first year of life to 31.6 and 30.6 thousand m2 /ha occurs on coverless sowing with the application of the Pivot herbicide and two-fold mowing of weeds. The dry matter yield was 2.1 and 2.0 t/ha, respectively. A decrease in the illumination of alfalfa plants sown under crops, where the leaf area did not exceed 13.0...15.3 thousand ? m2 / ha, slowed down the photosynthesis processes. Moreover, a more intensive growth of its photosynthetic organs was noted under the crop of barley, the cereal-legume mixture reduced the leaf area by 0.5 thousand m2 /ha, the pho-tosynthetic potential was 898...1051 thousand m2 day/ha.

scholarly journals INFLUENCE OF AGROMINERAL MICROFERTILIZING MIXTURE APPLICATION ON THE PRODUCTIVITY OF SUNFLOWER HYBRID

2020 ◽  
Vol 14 (4) ◽  
pp. 37-43
Author(s):  
Denis Potapov ◽  
Ramis Saniev ◽  
Vasiliy Vasin ◽  
Aleksey Vasin
Keyword(s):  
Leaf Area ◽  
Steppe Zone ◽  
Volga Region ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Maximum Value ◽  
Photosynthetic Potential ◽  
Middle Volga

The work presents the results of studies for 2017-2019, aimed at developing methods for increasing the productivity of sunflower hybrids cultivated according to the Clearfield system when using the microfertilizing mixture Agromineral in the forest-steppe zone of Middle Volga region. The results of the studies showed that the safety of plants at the time of harvesting is up to 91.8%; the maximum safety is achieved when processing crops by vegetation with Agromineral microfertilizing mixture at a dose of 3 l/ha. The leaf area increased until the budding phase, reaching a maximum of 99.2 thousand m2/ha, on a mid-season hybrid when processing crops with a dose of 3 l/ha, and then, due to drying of the lower leaves, it begins to decrease to the phase of the onset of flowering to 37.8 ... 57.9 thousand m2/ha. The maximum value of the photosynthetic potential is formed by crops of the mid-season hybrid 8N477KLDM - 4.781 million m2/ha days. The use of fertilizers and micronutrient mixtures increases its value and, as a result, increases productivity by 9.09 ... 9.36 kg/ha with an absolute indicator of 27.2 ... 33.2 kg/ha.

Cover crop effect on yield capacity of bastard alfalfa on leached chernozem of the Middle Volga region

2020 ◽  
Author(s):  
В. Гущина ◽  
О. Тимошкин ◽  
Г. Володькина
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Germination Rate ◽  
Volga Region ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Growing Period ◽  
Leached Chernozem ◽  
Dry Conditions ◽  
Middle Volga

При обеспечении люцерны всеми известными факторами жизни можно увеличить урожайность более чем в 1,5 раза. Подобранные покровные культуры способствуют уменьшению засорённости посевов и ослабляют влияние засушливых условий, что особенно часто наблюдается в лесостепи Среднего Поволжья. Поэтому подбор покровной культуры, создающей оптимальные условия для роста и развития люцерны изменчивой сорта Дарья в первый год жизни и не снижающей её продуктивность в последующие годы по сравнению с беспокровными посевами, является актуальным. Эксперимент проводили на опытном поле ФГБНУ «Пензенский ИСХ» – филиала ФГБНУ «Федеральный научный центр лубяных культур» на чернозёме выщелоченном в 2017–2019 годах, которые характеризовались как сухие и засушливые. При значительных колебаниях температур и условий увлажнения продолжительность вегетационного периода люцерны составила 85–111 дней, сумма активных температур и осадков — 1497–1976°С и 53,6–149 мм соответственно. На своевременность появления всходов покровные культуры влияния не оказали, но к их уборке число растений люцерны в агроценозе уменьшилось в 1,8–2,0 раза по отношению ко всходам. Сохранность составила 50,0–57,0%. На беспокровных посевах, обработанных гербицидом «Пивот, ВК» в фазе ветвления, она была максимальной. Наименьшее влияние на гибель люцерны оказывала викоовсяная смесь, скошенная на зелёную массу. Сохранившаяся от покровных культур стерня задерживала снег и повышала зимостойкость люцерны до 88,8–93,4%. На беспокровных посевах она была выше — 95,5–96,3%. Причём в травостое с гербицидной обработкой количество перезимовавших растений было наибольшим — 130 шт./м2. Люцерна, вышедшая из-под викоовсяной смеси, на второй год жизни сформировала травостой, урожайность которого в сумме за два укоса составила 27,1 т/га, уступив беспокровному посеву с химической прополкой на 6,3 т/га. Effective cultivation improves alfalfa yield by more than 1.5 times. Optimal cover crops decrease weed growth and impact of dry conditions common in the forest steppe of the Middle Volga region. Therefore, the main objective was cover crop selection that positively affects the bastard alfalfa variety (“Darya”). The field trial was conducted at the Penza Agricultural Institute in 2017–2019 under dry conditions. Soil — leached chernozem. Alfalfa growing period amounted to 85–111 days under significant variations of temperature and moisture content. Cover crops had no effect on alfalfa germination rate but reduced its proportion by 1.8–2.0 times. Alfalfa viability was 50.0–57.0%. Stands treated with “Pivot, VK” herbicide and cultivated without cover crops showed the highest viability at the tillering stage. Vetch-oat mixture had less influence on alfalfa loss. Cover crop remains protected alfalfa from snow and improved its winter hardiness up to 88.8–93.4%. Alfalfa cold resistance reached 95.5–96.3% in the absence of cover crops. Herbicide application resulted in maximum number of overwintered plants — 130 pcs/m2. Pure alfalfa stands treated with the herbicide exceeded the variant with vetch-oat mixture (27.1 t ha-1) by 6.3 t ha-1 for two cuts in the second year.

PHOTOSYNTHETIC ACTIVITY AND YIELD OF BARLEY WITH THE APPLICATION OF FERTILIZERS AND GROWTH STIMULANTS

2016 ◽  
Vol 1 (3) ◽  
pp. 15-19
Author(s):  
Васин ◽  
Aleksey Vasin ◽  
Карлов ◽  
Evgeniy Karlov ◽  
Васин ◽  
...  
Keyword(s):  
Dry Matter ◽  
Photosynthetic Activity ◽  
Maximum Yield ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Yield Structure ◽  
Middle Volga ◽  
Factor C

Research objective is increasing the yield of barley varieties in the conditions of forest-steppe of the Middle Volga Region. Are the results of studies for 2014-2015 with the assessment of yield structure indicators, the dynamics of accumulation of dry matter, photosynthetic capacity and leaf area in different varieties of barley compared to pea for different backgrounds of mineral nutrition and processing of crops in different growth stimulants Avibit, Aminokat, Megamix N10 in the conditions of Middle Volga Region forest-steppe. In three-factor experience included two backgrounds of mineral fertilizers: no fertilizers, N45P45K45 (factor A), five barley varieties: Helios, Sonnet, Golden eagle, Hawk, and Bezenchukskaja 2 peas Flagship 12 (factor B), treatment of crops during vegetation is at tillering drugs: Avibit, Aminokat, Megamix N10 (factor C). The research identified that in all options the treatment of crops and application of fertilizers increase the performance of the photosynthetic activity and cause the greatest increase of all crops options for processing. Maximum yield over the study years provide barley varieties of Helios with the treatment of crops during vegetation drug Megamix N10 as fertilizer and N45P45K45 will be 2.43-2.90 t/ha.

scholarly journals SOURCES OF VALUABLE TRAITS FOR BREEDING SPRING SOFT WHEAT IN THE MIDDLE VOLGA REGION

2021 ◽  
Vol 16 (4) ◽  
pp. 21-26
Author(s):  
Elena Demina ◽  
Aleksandr Kincharov ◽  
Tat'yana Taranova ◽  
Ol'ga Mullayanova ◽  
Kristina Chekmasova
Keyword(s):  
Grain Yield ◽  
Steppe Zone ◽  
Soft Wheat ◽  
Volga Region ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Spring Soft Wheat ◽  
Economically Valuable Traits ◽  
Middle Volga ◽  
Traits For Breeding

The work was carried out in 2018-2019 in the forest-steppe zone of Samara region. The purpose of the research is to conduct study samples of collection nursery of various ecological and geographical origins and identify new sources of economically valuable traits for breeding in the forest – steppe of the Middle Volga region. The material for research was 352 collection samples of spring soft wheat, including 108 foreign varieties and hybrids and 244 domestic samples of breeding institutions of the Russian Federation. Meteorological conditions during the research years were quite severe, and vegetation took place in arid and acutely arid conditions (hydrothermal coefficient in 2018 – 0.51, in 2019 – 0.48, with a long-term value in the region of 0.73). The greatest variability over the years of research was observed in the indicators of grain yield of samples (Сv=23.9...27.5 %) and plants height (Сv=10.8...12.9 %). According to the research results, 30 new genetic sources of economically valuable traits of spring soft wheat were identified. Sources of precocity (period of shoots-earing 35...37 days): Uralskaya kukushka, Chelyaba rannyaya, Tyumenskaya 25, Lutescens 70, Odeta, Libertina, Chi Mai, Long Fu 7, M83-1551. Sources of short stems (plants height 40...45 cm): KWS Torridon, KWS Jetstream, Florens, Eleganza, Long Fu 13. Sources of consistently high productivity (grain yield 415...554 g/m2, and the yield increase over the standard 71...210 g/m2): Erythrospermum 4089, Grekum 5523, Lutescens 6029, Lutescens 6074/6-23, Lutescens 6102/1-32, Lutescens 6102/1-34 Erythrospermum 6517/24-1, Ekada 214, Burlak, Ulyanovskaya 105, Lebedushka, Saratovskaya 73. Sources of high protein content (15.4...16.7 %) and gluten (36.0...42.0 %) in grain: Erythrospermum 3898, Erythrospermum 4112, Erythrospermum 4171, Erythrospermum 5289

scholarly journals Source material for breeding soft winter wheat in the forest-steppe of the Middle Volga region

2021 ◽  
Vol 37 ◽  
pp. 00189
Author(s):  
Nadezhda Zakharova ◽  
Nikolai Zakharov
Keyword(s):  
Winter Wheat ◽  
Plant Height ◽  
Winter Hardiness ◽  
Source Material ◽  
Volga Region ◽  
Forest Steppe ◽  
Careful Study ◽  
Middle Volga Region ◽  
Middle Volga ◽  
Soft Winter Wheat

The source material is the initial link of the selection process of any crop. A careful study of it in specific environmental conditions largely determines the effectiveness of breeding activities. The paper presents the results of a study of 102 cultivars of soft winter wheat of various ecological and geographical origin in terms of the yield, winter hardiness, the plant height, the duration of the growing season, the resistance to the frit fly. The sources of individual and a complex of economically valuable indicators were identified and recommended as the source material for breeding use in the forest-steppe conditions of the Middle Volga region. In the winter wheat selection for high winter hardiness, the varieties Omskaya 6, Bagrationovskaya, Novosibirskaya 32, Novosibirskaya 51, Biyskaya Ozimaya, Filatovka, Kulundinka, Poema (Russia), Banga (Latvia), Emoile (Bulgaria), Myropol, Mykolayvka, Dashenka, Kalyanova, Lytavinka, Vinnychanka, Manzheliya, Khersonska bezostaya (Ukraine), Xiao Yan 107, Zhong Pin 1535 (China) are of great interest. Highly productive varieties are Victoria 95, Poema, Biyskaya Ozimaya (Russia), Zamozhnist, Kalyanova, Yasnogorka (Ukraine). Varieties Vdachna, Shestopalivka, Myropol (Ukraine), Svilena, Emoile (Bulgaria), KS 96 WGRC 37, KS 96 WGRC 40, Pacer (USA), Kitami 46 (Japan) XiaoYan 6, Ji Mai 30, Ji Mai 36 (China) are characterized by early ripeness. Short-stalked wheat varieties are Cameo (Russia), Ninka (Ukraine), Ji Mai 18 (China), Kitami 35 (Japan). Highly resistant varieties to the frit fly are Donskaya 50, Dominanta, Poema (Russia), Yasnogorka (Ukraine), Orienta, KS 96 WGRC34, KS 96 WGRC40 (USA), Xiao Yan 7, Zhong Pin 1507, Zhong Pin 1535 (China), Kitami 35 (Japan). Reliable correlations between winter hardiness and productivity, winter hardiness and plant height, plant height and productivity of soft winter wheat were established, which is of practical importance both for crop breeding and for its production use.

scholarly journals VARIETAL DIFFERENTIATION OF WINTER SOFT WHEAT BY MATURITY GROUPS IN THE FOREST-STEPPE OF THE MIDDLE VOLGA REGION

2020 ◽  
pp. 91-97
Author(s):  
N.N. Zakharova ◽  
◽  
N.G. Zakharov ◽  
Keyword(s):  
Growing Season ◽  
Soft Wheat ◽  
Volga Region ◽  
Forest Steppe ◽  
North Caucasus ◽  
Wheat Varieties ◽  
Middle Volga Region ◽  
Early Maturing ◽  
Middle Volga ◽  
Maturity Groups

In wheat selection, the earring period is a fairly reliable criterion for determining the ripeness group of the variety. The aim of the research was to determine the maturity groups of winter soft wheat varieties of various ecological and geographical origin in the middle Volga forest-steppe. 18 varieties of winter soft wheat included in the State register of selection achievements for the middle Volga region of Russia were used for research in machine seeding.102 varieties originating from 11 countries were used in manual seeding. It is established that the intra-and intervariental change of the date of winter soft wheat earning is weak and moderate. The share of genotype (variety) influence in the variability of the duration of the growing season of winter soft wheat is 56.1 %, the year conditions-4.4 %, and the “genotype-year” interaction-36.5 %. Among the assortment of winter soft wheat of domestic selection, 54% of varieties showed themselves to be medium – ripe, 24% – medium-early, 10% - medium-late. The late-maturing, early-maturing, and ultra-early-maturing groups only included single varieties in certain years. Among the studied assortment of the world wheat collection late maturity had variety of Germany, the earliness and medium early– wheat of China, Japan, Bulgaria and the North Caucasus region of Russia, medium maturing varieties of the Siberian region of the country. Wheat of different groups of ripeness were represented by varieties of Ukraine. The ultra-early and late-maturing varieties of foreign selection selected in the study are valuable as a source material for the selection of soft wheat for the duration of the growing season in the middle Volga forest-steppe.

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