Assessment of ecological plasticity and stability of sunflower hybrids (Helianthus annuus L.) in Ukrainian Steppe

Yeremenko, Oksana; Калитка, Валентина Василівна; Kalenska, Svitlana; Malkina, Vira

doi:10.15421/2018_214

Cited by 7 publications

(2 citation statements)

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“…At the same time, crop production should be economically and environmentally feasible. In recent years, Ukraine has been expanding the production of an important oil crop of universal use-sunflower [6]. The sown areas of sunflower (Helianthus annuus)-a traditional culture of the Steppe zone are actively moving to the Northern regions of Ukraine [7].…”

Section: Introductionmentioning

confidence: 99%

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Kalenska¹,

Ryzhenko²,

Novytska³

et al. 2020

AJPS

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In Ukraine, a sunflower is the main oil crop from which more than 90% of vegetable fats are produced. An increase in production is due to the expansion of cultivation area, which necessitates research on sunflower hybrids adaptability in the northern regions of Ukraine, where in recent decades, there has been a significant change of weather conditions and which may be favorable for its cultivation. The research was carried out in the Northern part of the Forest-Steppe of Ukraine on light loam chernozems. Reaction to growing conditions of four hybrids was studied by establishing the stability and plasticity of hybrids in terms of yield formation due to changes in morphological characteristics of plants. Yield potential realization is high enough, which is provided by sufficient amounts of positive, active, effective temperatures and precipitation. Calculation of the coefficients of plasticity and stability allows identifying stable sunflower hybrids, hybrids with a high level of plasticity, and recommending them to production. The yield of early-maturing hybrid Ukrainskyi F1 increases rectilinearly with plant density increasing (r = 0.977 -0.998), while hybrids P63LL06 (r = 0.651 -0.882); NK Ferti (r = 0.589 -0.846), and NK Brio (r = 0.689 -0.804) form a higher yield at standing densities up to 60 thousand plants per hectare, and with further thickening, the yield decreases. With the thickening of sowings, the height of all hybrids plants increases (r = 0.97 -0.99), and there is a decrease in the number of seeds per anthode, and the weight of 1000 seeds. Sunflower hybrids can be divided into the groups according to the peculiarities of yield formation due to morphological features: 1) yield increases only due to sowings' thickening-Ukrainskyi F1; 2) combined efficiency-increasing sowings' density to 60 thousand plants/ha and generative organs formation-NCKBrio; 3

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Section: Introductionmentioning

confidence: 99%

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Kalenska¹,

Ryzhenko²,

Novytska³

et al. 2020

AJPS

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“…Today, it is necessary to study indepth the potential of hybrids and varieties for growing them in different conditions to determine their competitiveness and popularisation, which will increase the quality and yield of the crop. (Eremenko et al, 2019;Eremenko et al, 2018, Ieremenko & Kalitka, 2016. That is why today much attention is paid to the study of the influence of nutritional conditions on the formation of productivity of hybrids of both foreign and domestic breeding, in specific soil and climatic conditions of Ukraine Domaratskiy et al, 2018).…”

Section: Relevancementioning

confidence: 99%

Fertiliser efficiency in the formation of sunflower productivity

Harbar,

Lishchuk,

Dovbash

et al. 2021

Rosl. g̀runtozn.

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Plant nutrition throughout the vegetation period is one of the main factors aimed at realising the genetic potential of sunflower hybrids when cultivated in all soil and climatic conditions. Currently, it is important to study the genetic potential of domestic hybrids under different growing conditions to identify their competitiveness, thus improving crop quality and yields. The use of a wide range of complex microfertilisers in production along with the main fertiliser helps to increase the efficiency of plant nutrient utilisation of mineral fertilisers and soil and is one of the ways to improve crop yields and agricultural product quality. While sunflower is considered to be a key oilseed crop, its cultivation technology is not fully researched, and previous studies often contain contradictory data. An important part of the agrotechnical measures aimed at increasing crop productivity is to ensure optimal plant nutrition during the vegetation period. The purpose of the study was to determine the influence of crop nutrition conditions and to select high-yielding hybrids (NK Diamantis, SI Kupava, NK Neoma) for specific soil and climatic conditions through the formation of their productivity. The study was conducted in 2018-2019 on typical low-humus chernozems. The research program included a three-factor field experiment in which hybrids (factor A), fertiliser options (factor B), and foliar feeding of crops (factor C) were studied in the phase of 4 and 8 leaves of sunflower with Ecoline Boron, Nertus Boron, and Bast Boron. The sunflower hybrids studied were NK Diamantis, SI Kupava, and NK Neoma. The research results revealed significant changes in the diameter of the sunflower inflorescence under the influence of different nutritional conditions created by fertiliser variants. The influence of hybrid features also determined this indicator. Plants of the hybrid NK Diamantis formed heads with diameters ranging from 17.6 to 21.2 cm, SI Kupava - from 18.8 to 22.1 cm, NK Neoma – from 17.2 to 21.6 cm. The maximum index was achieved in the variant with the introduction of N36R56K108S28 + N23 + Ecoline Boron (phase 4 and 8 leaves) in plants of hybrid SI Kupava, and it amounted to 22.1 cm. The weight of 1,000 achenes, which is one of the genetically determined traits of the crop, in plants of the hybrid NK Diamantis, depending on the fertiliser variant, varied from 59.3 to 62.3 g, SI Kupava from 69.8 to 74.0 g, NK Neoma from 68.8 to 72.6 g. The maximum result was provided by the variant with the use of N36R56K108S28 +N23 + Ecoline Boron (phase 4 and 8 leaves). Studies have shown that the most productive hybrid was Si Kupava with the maximum yield in the variant with the use of N36R56K108S28 +N23 + Ecoline Boron (in the phase of 4 and 8 leaves of 1 l/ha) – 3.46 t / ha

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Efficiency of nano preparations in soybean growing technology

Kalenska¹,

Novytska²

2020

Rosl. g̀runtozn.

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Nanotechnology is seen as one of the key technologies in the twenty-first century, which promises to improve traditional agricultural practices and offer sustainable development by improving management and conservation tactics by reducing agricultural resources costs. The creation and implementation of new environmentally friendly and technological nano preparation designed to increase the efficiency of plant nutrient use from mineral fertilizers and soil - is one of the ways to increase crop yields and the quality of agricultural products. The aim of the research was to determine the effect of pre-sowing seed treatment and fertilizing of sowings by nano preparation Avatar (micro fertilizer of carboxylates of natural acids), Iodis-concentrate (immunomodulator – a stimulator of growth processes), and Super Micro Plus (nanochelate fertilizer), and leaf apparatus formation of soybean Khorol variety. Field research was conducted in 2016–2020 in a stationary experiment at the NULES of Ukraine «Agronomic Research Station» in 10-field crop rotation and also in laboratory «Demonstration collection field of crops» of the Plant Science Department. As a result of the conducted researches, was established that the use of nano preparation Avatar, Iodis-concentrate, and Super Micro Plus for seed treatment and fertilizing intensified leaf surface formation and symbiotic apparatus activity of soybean plants. The obtained results confirm that the application of the complex of nano fertilizers Jodis-concentrate, Avatar, and nano-chelate fertilizer Super Micro Plus in the soybean fertilization helped to increase the yield, which indicates their unconditional effectiveness. The highest efficiency of nano fertilizers was shown by inoculation and seed treatment by Avatar with co-fertilizing Avatar +nano-chelate fertilizer Super Micro Plus, providing formation of 52.4 thousand m2/ha of leaf surface area of soybean variety Khorol, 69.7 pcs/plant tubers on the root system, 785 mg/plant of their weight and yield at the level of 2.79 t/ha.

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Assessment of ecological plasticity and stability of sunflower hybrids (Helianthus annuus L.) in Ukrainian Steppe

Cited by 7 publications

References 0 publications

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Fertiliser efficiency in the formation of sunflower productivity

Efficiency of nano preparations in soybean growing technology

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