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.

Improvement of separate elements of the techno-logy of cultivation of white cabbage in the conditions of the of the central region of the non-chernozem zone

2020 ◽  
Author(s):  
A.V. Konstantinovich ◽  
◽  
A.S. Kuracheva ◽  
E.D. Binkevich
Keyword(s):  
Seed Treatment ◽  
Unit Area ◽  
Growing Season ◽  
Agricultural Products ◽  
Stress Factors ◽  
High Quality ◽  
Temperature And Precipitation ◽  
White Cabbage ◽  
Sowing Seed

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.

scholarly journals Sowing date: The factor of yield and quality of fenugreek seed (Trigonella foenum graecum L)

2007 ◽  
Vol 52 (1) ◽  
pp. 1-8
Author(s):  
Radojka Maletic ◽  
Radosav Jevdjovic
Keyword(s):  
Sowing Date ◽  
Trigonella Foenum Graecum ◽  
Fenugreek Seed ◽  
Germination Energy ◽  
Yield And Quality ◽  
Sowing Dates ◽  
Sowing Period ◽  
Trigonella Foenum Graecum L ◽  
Dark Soil

Results of a two-year investigation (2005 and 2006) for the yield and quality of fenugreek seed (Trigonella foenum graecum L) obtained on the location in South Banat (around Pancevo) on marsh dark soil are presented in the paper. Fenugreek seed used in this investigation was produced in the collection of the Institute of Medicinal Plant Research "Dr Josif Pancic" in Pancevo. The effect of sowing date on yield (kg/ha) and quality of fenugreek seed (germination energy and total germination) were investigated. Sowing was carried out on seven dates, 10 days between dates of each sowing. Yield of fenugreek seed sowed on different dates differed in both years. Sowing carried out in the first two weeks in April resulted in considerably higher yield compared to sowing at the end of April and during May. The highest yield was produced in the second sowing date from April 10, then in the first (April 1) and the third sowing period (April 20). The lowest yield of fenugreek seed was recorded in sowing carried out at the end of May. Yield of fenugreek seed wasn't significantly different in study years. Earlier dates of sowing resulted in seed of better quality (better germination energy and total germination). In the second sowing date fenugreek seed obtained was of best germination energy and total germination (approx. 99%). Later sowing dates gave seed of lower quality. So, sowing carried out at the end of May resulted in seed with the lowest value of germination energy and total germination (approx. 91%).

Rutin content in the forage and grain of common buckwheat (Fagopyrum esculentum) as affected by sowing time and irrigation in a Mediterranean environment

2020 ◽  
Vol 71 (2) ◽  
pp. 171
Author(s):  
Marco Mariotti ◽  
Marco Macchia ◽  
Domenico Cerri ◽  
Domenico Gatta ◽  
Iduna Arduini ◽  
...  
Keyword(s):  
Biomass Accumulation ◽  
Early Spring ◽  
Fagopyrum Esculentum ◽  
Late Spring ◽  
Common Buckwheat ◽  
Sowing Time ◽  
Plant Parts ◽  
Mediterranean Regions ◽  
Food And Feed ◽  
Spring Sowing

Cultivation of buckwheat (Fagopyrum esculentum Moench) under Mediterranean photothermal conditions could affect synthesis of the flavonoid rutin and its partitioning within the plant, thus affecting the nutraceutical value of plant products. We examined rutin concentration and yield in the forage and the grain of common buckwheat grown under Mediterranean field conditions, in response to sowing time, irrigation, growth stage at harvest, and variety. The highest rutin concentration and yield in the forage were obtained with late spring sowing, thanks to greater accumulation of solar radiation and higher efficiency of rutin synthesis per photothermal unit. Water supply promoted a more efficient use of light resources for both biomass accumulation and rutin synthesis. Rainfed conditions reduced biomass accumulation to a greater extent than rutin synthesis. Rutin concentration was highest in leaves, followed by inflorescences, stems and achenes, and in all plant parts it decreased with plant age. In the grain, rutin concentration was highest with late spring sowing, and rutin yield was highest with early spring sowing. Correlation analyses suggest that rutin synthesis proceeds from the leaves to the other plant parts. Our research demonstrates that buckwheat can be cultivated in Mediterranean regions as a source of rutin for medicine and for food and feed supplementation.

Time of sowing for barley in the Victorian Mallee

1975 ◽  
Vol 15 (77) ◽  
pp. 830 ◽  
Author(s):  
PE Ridge ◽  
IT Mock
Keyword(s):  
Sowing Date ◽  
Barley Cultivar ◽  
Sowing Time ◽  
Flowering Phase ◽  
Yield And Quality ◽  
Quadratic Relationship ◽  
Grain Nitrogen

The effect of sowing time, from late April to late June, on the development, yield and quality of the mid-season barley cultivar, Weeah, was examined from 1970 to 1972 in the Victorian Mallee. The length of the pre-flowering phase decreased with later sowing and there was a quadratic relationship between yield and sowing date. Grain nitrogen varied inversely with yield.

IMPACT OF PRE-SOWING TREATMENT OF SEEDS BY SUPERWEAK ELECTROMAGNETIC FIELDS OF EXTREMELY-HIGH FREQUENCY ON PRODUCTIVITY AND QUALITY OF WINTER WHEAT GRAIN

2016 ◽  
Vol 11 (1) ◽  
pp. 52-57
Author(s):  
Морозов ◽  
Gennadiy Morozov ◽  
Таланов ◽  
Pavel Talanov ◽  
Таланов ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Electromagnetic Fields ◽  
Root Rot ◽  
High Frequency ◽  
Seed Treatment ◽  
Winter Rye ◽  
Wheat Grain ◽  
Extremely High Frequency ◽  
Sowing Seed

The article presents the results of studies on the effect of pre-sowing seed treatment by electromagnetic impact to reduce phytopathogens on seeds, involvement of plants by root rot and leafy mycosis and improving the productivity and quality of winter rye grain.

scholarly journals Efficiency of use of microelements in cultivation of sweet pepper during irrigation in the subzone of light chestnut soils of the Volgograd region

2021 ◽  
pp. 12-16
Author(s):  
Elena Vladimirovna Kalmykova
Keyword(s):  
Trace Elements ◽  
Boric Acid ◽  
Copper Sulfate ◽  
Seed Treatment ◽  
Sweet Pepper ◽  
Manganese Sulfate ◽  
Chestnut Soils ◽  
Volgograd Region ◽  
Sowing Seed

The results of studies of scientifically grounded use of microelements in sweet pepper crops, as an important factor in increasing the yield of vegetable crops and improving the quality of products, are presented. The purpose of our research was to substantiate the influence of the use of trace elements in the technology of sweet pepper cultivation on the growth and development of plants, the productivity and quality of the products of this culture. The experimental part of the work was carried out in 2014-2019 in the subzone of light chestnut soils of the Volgograd region. Experiments on the study of trace elements were carried out by pre-sowing seed treatment and foliar feeding of plants. Chemically pure compounds of manganese sulfate, zinc sulfate, copper sulfate, ammonium molybdate, boric acid were used as microelements. The use of trace elements in the dry-steppe zone of the Lower Volga region is an important agricultural technique that helps to accelerate growth, development, increase productivity and improve the quality of pepper fruits. It is recommended to carry out pre-sowing treatment of seeds with solutions of boric acid (0.29 g / 1 l of water), copper sulfate (0.20 g / 1 l of water) and manganese sulfate (0.16 g / 1 l of water) (the ratio of the weight of seeds to the solution 1: 2) as a way to increase seed vitality, speed up yield and improve seedling quality. In order to increase the yield and improve the quality during the budding period of peppers, it is necessary to carry out foliar dressing, first of all, with solutions of boric acid (0.29 g / 1 l of water), ammonium molybdenum (0.10 g / 1 l of water), water consumption 1 l / 10 m2. Due to its high efficiency, simplicity and availability, pre-sowing seed treatment and foliar feeding of plants with microelements will find wide application in vegetable growing.

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 The effect of sowing time on pest spreading in spring oilseed rape crop

2018 ◽  
Vol 24 (4) ◽  
Author(s):  
Rimantas Velička ◽  
Lina Marija Butkevičienė ◽  
Rita Pupalienė ◽  
Zita Kriaučiūnienė ◽  
Robertas Kosteckas ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Verticillium Dahliae ◽  
Sowing Date ◽  
The Other ◽  
Meligethes Aeneus ◽  
Sowing Time ◽  
Sowing Dates ◽  
Crop Density ◽  
Rape Seedlings ◽  
Spring Rape

The field experiments were conducted at the Experimental Station of Aleksandras Stulginskis University in 2015–2017. The aim of the experiment was to evaluate the influence of sowing time on spreading of pests and diseases in spring oilseed rape crop. The first sowing occurred when soil reached physical maturity, the other sowing dates were every 5 days in 2015–2016 and every 7 days in 2017. In 2015, the sowing time did not have a significant effect on the distribution of Alternaria brassicae. Meteorological conditions strongly influenced the severity of the disease. The sowing date had a significant influence on the distribution of Verticillium dahliae: in the spring rape crop sown in May, the stems were damaged by 6.4%, less compared to the crop sown in April. In 2016–2017, the rape seedlings in the plots of the latest sowing were significantly more damaged compared with those of earlier sowing dates. In 2016, spreading of Verticillium longisporum significantly increased by 3.7 times in the crop of spring rape sown on 10 May compared to other sowing dates. In 2017, the spreading of Verticillium dahliae in spring rape crops was more influenced by a colder than usual vegetation period and an abundant rainfall than the sowing time. In 2015, the intensity of Phyllotreta spp. damage in the rape seedling period (BBCH 10-19) significantly increased by 2.7 times with the sowing date from 30 April to 20 May. The spreading of Meligethes aeneus was the least in the spring oilseed rape sown at the optimal time (30 April and 5 May). In 2016–2017, Phyllotreta spp. were more intensively spread in the crops sown in April, and rape seedlings were significantly more damaged. In 2016, Meligethes aeneus were most widely spread in the spring rape crop of the earliest sowing (4 October). A significant decrease in the number of pests was detected in the rape crops sown in May compared to that sown in April. In 2017, the highest number of Meligethes aeneus was evaluated in the rape crop sown on 2 June, significantly by 3.9 times more compared with that in the earlier sown crop and by 2.9 times in the crop sown one week later. It is believed that the other generation of Meligethes aeneus from winter rape crops went to the spring rape crops. In 2016, there was a very strong statistically significant correlation between the sum of positive temperatures for the 10-day period up to the sowing of rapeseed and the prevalence of Phyllotreta spp. in crops: r = 0.98, P ≤ 0.05, and the damage intensity of rape seedlings by Phyllotreta spp. of (BBCH 10-19): r = 0.92, P ≤ 0.05. The warmer the weather was before rape sowing, the more active Phyllotreta spp. were. In 2017, strong correlations were established between the number of Phyllotreta spp. and the intensity of crop damage by Phyllotreta spp. and the crop density 3 days after the emergence: r = –0.82, P ≤ 0.05; r = –0.89, P ≤ 0.01, and 7 days after the emergence of spring rape: r = –0.81, P ≤ 0.05; r = –0.88, P ≤ 0.01.

Optimal sowing time and seeding rate for winter-sown, rain-fed chickpea in a cool, semi-arid Mediterranean area

2005 ◽  
Vol 56 (11) ◽  
pp. 1227 ◽  
Author(s):  
Sui-Kwong Yau
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Ascochyta Blight ◽  
Mediterranean Area ◽  
Sowing Date ◽  
High Elevation ◽  
Early Spring ◽  
Seeding Rate ◽  
Sowing Time ◽  
Semi Arid

Chickpea (Cicer arietinum) is one of the 3 most important legume crops in West Asia and North Africa. Winter sowing of chickpea has been advocated recently in the region, but detailed research on date and rate of sowing has not been conducted. The objectives of this study were to find the optimal sowing month and to test the hypothesis that a lower than normal seeding rate is needed for winter-sown chickpea. Two series of field experiments were conducted under rain-fed conditions at the Agricultural Research and Educational Center in the Bekaa Valley of Lebanon. In the sowing-date experiment, which was conducted over 3 years, seed was sown in November, December or January and February. The seeding-rate by sowing-date experiment, which was conducted over 2 years, consisted of 3 seeding rates: 25, 40 and 55 seeds/m2, and 2 sowing dates: one each in November and March. Sowing in December or January gave similar seed yield as November sowing, and both gave higher yield than sowing in February. Sowing in December or January should be preferable than sowing in November because it is expected to give adequate time for weed control and less chance of ascochyta blight infestation. Seeding rates had no significant effects on yield, and seeding-rate by sowing-date interaction was non-significant, indicating that there is no yield advantage of a reduced seeding rate with winter sowing. However, sowing at 25 seeds/m2 yielded bigger seeds, which usually fetch higher prices. In conclusion, chickpea farmers in the semi-arid areas of the high-elevation Bekaa Valley of Lebanon or in other areas with similar environments should shift their sowing date from early spring to December or January and sow at a lower (25 seeds/m2) than normal seeding rate.

scholarly journals Effects of pre-sowing seed treatment with KCl on yield and quality of two peanut cultivars L12 and L18

2021 ◽  
Vol 20 (1) ◽  
pp. 1-9
Author(s):  
Trong V. Le
Keyword(s):  
Seed Treatment ◽  
Starch Content ◽  
Mineral Elements ◽  
Yield And Quality ◽  
Saponification Value ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Sowing Seed

The study was conducted to evaluate the effect of 0.05% KCl on yield and quality of two peanut varieties L12 and L18 grown in Thanh Hoa province. The experiment was arranged in a completely randomized design with two factors (varieties and chemicals). After careful selection, L12 and L18 seeds were divided into two parts. Part 1 was treated with distilled water as control and part 2 was treated with 0.05% KCl. The results showed that pre-sowing seed treatment with 0.05% KCl increased the yield components and yield of both L12 and L18 when compared to the control, in which the yield of L18 in both treatments reached 37.37 quintals/ha and 39.54 quintals/ha and was higher than that of the L12 variety at 35.77 quintals/ha and 36.40 quintals/ha. Pre-sowing seed treatment with 0.05% KCl also increased the quality of peanuts such as starch content, reducing sugar, lipid, saponification value, protein, B vitamins, total amino acids and content of some mineral elements in peanuts such as N, K, Ca, Mg. Briefly, the results of this study indicated that pre-sowing seed with KCl increased the yield and quality of peanuts.

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