The number of kernel rows and kernel in a rаw in corn hybrids as affected by the elements of technology

Palamarchuk, Vitalii

doi:10.21498/na.5.2017.122229

Cited by 1 publication

(4 citation statements)

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“…It is important to correctly choose the parameters of the optimal seeding depth depending on the seed fraction, biological properties of the hybrid, moisture availability of the seeding horizon, mechanical composition of the soil, energy of the starting growth of the hybrid, in order to obtain friendly and leveled seedlings with a high field seed germination [12,13]. In addition, the deeper the seed is sown, the more the seedlings come into contact with pathogenic microorganisms and pests on their way, so they are more affected by them, especially on soils with a heavy mechanical composition [10,11].…”

Section: ■ Introductionmentioning

confidence: 99%

“…In addition, the deeper the seed is sown, the more the seedlings encounter pathogenic microorganisms on their way; therefore, they are more affected by them, especially on soils with a heavy mechanical composition. When the depth of seed wrapping, which has micro-and microtraumas, increases, its germination decreases by 20 -21 % [11], the temperature conditions for seed germination deteriorate, and therefore, the seedlings may be unfriendly and thinned [12]. At the moment, there is a ridge technology for growing corn, which makes it possible to increase productivity by 15 -20 % due to early sowing in the ridge.…”

Section: ■ Introductionmentioning

confidence: 99%

“…When the top layer of the soil dries, the seeds are wrapped deeper so that they lie in the moist soil. With the close occurrence of groundwater, the depth of seed wrapping is reduced to 5 -6 cm, and on light soils prone to rapid drying, it can be increased to 10 -12 cm [11,12].…”

Section: ■ Introductionmentioning

confidence: 99%

“…In some cases, large fractions can be damaged to a significant extent, in other cases, small ones can be affected due to which their quality varies in different ways. Mechanical damage and thermal cracking of seeds can reach 75 -85 % [11,12].…”

Section: ■ Introductionmentioning

confidence: 99%

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Corn: Sowing Parameters

Коваленко

Drobitko

Palamarchuk

et al. 2023

J. Org. Pharm. Chem.

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Aim. To highlight the results of the research conducted in 2020 – 2021 aiming at studying the ffect of multi-depth and multifraction sowing of the hybrid corn seeds of the DMS Sticker mid-early maturity group on the yield when grown in the conditions of the Northern Steppe of Ukraine and determine the economic efficiency of the approaches.Materials and methods. Winter wheat was a predecessor crop in the study. Tillage methods and related conditions are described in the article. Herbicides were used to protect against weeds. Sowing was carried out in the third decade of April at a soil temperature of +8 – 10 ºС. The experiment considered 2 factors, namely the depth of sowing seeds and the size of the seed fraction. The results obtained were processed using measurement, mathematical and statistical methods of research, as well as calculation and comparison approaches.Results and discussion. On average, depending on the factors studied, the height of the plants varied significantly, as a rule, the tallest plants were obtained from large seeds, which had the highest mass of 1000 seeds. Thus, in particular, on average over two years of research, the height of the plants was 250.4 cm when the weight of 1000 seeds was 255 g, and the seeds were wrapped by 4 – 5 cm; when the weight of 1000 seeds was 300 g, the height was 251.1 cm, while with the weight of 350 g it was 258.3 cm; with the wrapping depth of 7 – 8 cm the height was 252.1 cm, 255.8 and 268.5 cm, and with the wrapping depth of 10 – 11 cm it was 257.6 cm, 261.8 and 266.1 cm.Conclusions. The use of the large seed fraction provided an increase in the yield of the DMS Sticker corn hybrid by 1.09 – 1.79 t ha-1 compared to the use of the small seed fraction and was 8.70 t ha-1. When using the large seed fraction and the wrapping depth of 10 – 11 cm, the cost of production was 56,550 UAH ha-1. The cost price of 1 ton of production was the lowest and amounted to UAH 2,247.1, the conditional net profit was the highest – 37,000 UAH ha-1, and the level of profitability was 189.3 %.

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Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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