scholarly journals Influence of growth regulators on the yield and quality of potatoes.

Author(s):  
A. F. Petrov ◽  
R. R. Galeev ◽  
N. V. Gavrilets ◽  
A. V. Pastukhova ◽  
I. V. Karhardin ◽  
...  

The potato is one of the most versatile, accessible and at the same time widespread vegetable crops of the globe, and in particular of the Russian Federation. Today notable can be imagined without it. But despite the plasticity of the potato crop, there are still “white spots” in its production. With late and even return spring and early autumn frosts, the climatic features of Siberia significantly affect the crop’s growing season, preventing it from realising its full potential. Like that of many other crops, potato production is associated with seasonality, and there are often significant losses during cultivation and especially during storage. An important challenge is to protect plants during growth and development by applying innovative, environmentally friendly crop protection and stimulation products. Organomineral growth and development regulators were particularly popular. In the work schemes of application of perspective, organomineral growth regulators in conditions of forest-steppe of Western Siberia were tested and perfected. Their influence on the primary phases of growth and development of potatoes and their maturity, and their influence on biometrical parameters of plants, a phytosanitary condition of crops, a crop capacity, and its safety are established. On average, under the influence of growth regulators Epin-Extra and Zircon, the growing season is shortened by 3-5 days; the spread of diseases is reduced by 1.5-2 times; the yield increases to 8.3 tons per hectare. These studies are confirmed by the calculation of economic efficiency. Thus, the use of these growth regulators provides the level of profitability of production up to 252%.

Author(s):  
N.S. Kozhushko ◽  
M.M. Sakhoshko ◽  
M.G. Bashtovyi ◽  
D.V. Smilyk ◽  
V.I. Avramenko ◽  
...  

According to statistic evaluation of the manifestation of signs of the economic suitability of state sort resources of 2019 registration potatoes when growing it in different agro-climatic conditions, a significant advantage of influence of the forest-steppe conditions was determined. Compared to Polesia the increase of yield rose for 4.1 t/ha or 18 % (НІР05 = 2.18, Ffact= 12.65 > F05 = 4.22) and the amount of trade potato for 22.72 ha or 20 % (Ffact = 58.87). There is also a tendency to increase the number of starch from unit of area for – 17 % and the total consumer properties for – 8 %.  However, there is a significant difference in the reduction of storability of products by 45 % and the lack of it’s resistance to macrosporiosis and late blight. It was proved that the yield of varieties for cultivation in the polesia zone by 25.7 % depended on the duration of the growing season (Ffact = 4.14 > F05  = 0.06). The relationship between yield and starch of potatoes in Polesia zone varieties  was determined – 23.6 % and in forest-steppe – 17.3 % and starch collection, respectively, 33.6 % and 28.0 %. The dependence of storability of potato which grew in the polesia zone and in forest-steppe from the amount of starch for 15 % was mathematically proved (Ffact = 2.11 > F05 = 0.17) і 11.3 % (Ffact = 1.52 > F05 = 0.24); the dependence of storability on the duration of the growing season in the Forest-Steppe conditions was confirmed(Ffact = 0.66 > F05  = 0.43). In addition, the 12 % of tasting grade of the Forest-Steppe varieties depended on the starch content amount (Ffact = 1.65 > F05 = 0.22). According to the results of the regression analysis, mathematical models have been developed to predict yields, culinary and consumer properties, and the storability of new potato varieties under different growing conditions. The project of a conveyor for the consumption of fresh product in summer  period with the involvement of varieties of early ripeness in the Forest-Steppe was presented: 80 days after planting – Sanibel, 90 days after planting – Medison, Paroli, 95 days after planting – Bazalia, Bernina, 100 days after planting – Donata, in the Polesia zone ‒ 80 days after planting – Sanibel, 90 days after planting – Paroli, 95 days after planting –Bazalia, 100 days after planting – Medison, Bernina, Donata. By distribution of varieties by predicted high content of phytonutrients there were bred varieties with red skin and creamy flesh – Bazalia and Sanibel, by high content with yellow flesh – Baltic Rosa and moderate content with white flesh – Oleksandrit, Fotynia, Ricarda. Introduction of new varieties with certain high adaptive potential of storability and content of bioactive compounds in potatoes will provide growth of potato production in the conditions of the northeast forest-steppe and increase its competitiveness in the domestic and foreign markets and will solve the problem of year-round consumption of fresh quality products.


2020 ◽  
pp. 51-64
Author(s):  
Nadiia Hetman

In the soil and climatic conditions of the Right Bank Forest-Steppe, regardless of the action of abiotic and biotic factors during the growing season, high adaptability of alfalfa was established for different geographical origins, namely the natural zone of the Forest-Steppe, Polissya, Steppe Ukraine and Serbia. It was found that under the weather conditions of 2016 year alfalfa varieties reacted differently to changes in temperature and moisture during the growing season. It is important to note the effectiveness of phosphorus-potassium fertilizers applied directly to alfalfa coverless method of sowing. In the year of sowing, alfalfa formed a powerful herbage and provided two slopes with a yield of green mass at the level of 20,13-29,80 t/ha with a dry matter yield of 4,80-6,69 t/ha. For the second year of vegetation, alfalfa was carried out according to the regimes, which considered the phases of growth and development (budding, beginning of flowering and flowering). In the first mode of cutting management (all slopes in the budding phase) it is advisable to identify three varieties of Unitro, Nasoloda and Rosana, which provided a gross dry matter of 10,41-10,48 and 2,29-2,31 t/ha of crude protein. The productivity of alfalfa increased with late term cutting - at the beginning of flowering and a combination of slopes (3rd mode). The dry matter yield was 11,40-12,62 and 2,35-2,51 t/ha of crude protein (second regime) and the indicators increased under the third regime, especially dry matter 13,58-15,80 t/ha and decreased to 2,37-2,41 t/ha of crude protein. The increase in dry matter of the second mode increased by 9,5-23,1% and crude protein by 2,6-20,5%, and in the third mode of use of alfalfa it was 2,3-11,2%, compared to the mode of mowing the grass in the budding phase. During the third year of vegetation under favorable agroecological conditions for growth and development of alfalfa plants, the studied varieties provided four slopes regardless of the mode of use of grass with a dry matter yield of 15,43-20,58 and 3,21-4,02 t/ha of crude protein. During the second and third years of vegetation from the studied modes of use of alfalfa grass for fodder purposes, the highest yield of crude protein 5,27-6,53 t/ha varieties provided for the alienation of crops at the beginning of the flowering phase, which was on average 6,0-7,1% higher than when mowing all slopes in the budding phase and a combination of slopes in the phases of growth and development (3rd mode). Thus, in the conditions of the Forest-Steppe of the right bank on gray forest soils alfalfa, regardless of geographical origin, adapted to growing conditions and provided stable productivity indicators regardless of the regime of grass use with observance of elements of cultivation technology.


Author(s):  
K.S. Nebaba

The article presents the results reached in our study of the influence of mineral fertilizers and growth regulators on symbiotic capacity of field pea in the conditions of Western Forest-Steppe. Experimental part was carried out during 2016-2018 on the field of the TPC Podilya at the SAEUP, the typical black soil, characterized as deep, low-humus, and heavy gravel on forest-like loams. The results indicate that the productivity of field pea largely depended on the effective interaction of the host plant and nodule bacteria. Application of phosphorus-potassium fertilizers and small doses of nitrogen fertilizers improved the biological fixation of nitrogen. Spray application of growth regulators at the budding-flowering phase continued the functioning of the red pigment of synthesized leghemoglobin in the nodules. The positive effect of mineral fertilizers and growth regulators on the symbiotic potentials of field pea plants was confirmed. The total symbiotic potential characterizes the state of legume-rhizobium symbiosis. The duration of active functioning of nodules on pea roots and their ability to fix biological nitrogen during the growing season define the magnitude of the active symbiotic potential. During the growing season, the total symbiotic potential indicators were the highest for the Chekbek variety and amounted to 13.1 thousand kg*days/ha (after application of N30P30K45 with the Vympel growth regulator). After application of the same combination of mineral fertilizer and growth regulator, the Gotovsky variety demonstrated - 10.6 thousand kg*days/ha, the Fargus variety – 10.0 thousand kg*days/ha.


2021 ◽  
Vol 17 (2) ◽  
pp. 139-145
Author(s):  
L. A. Pravdyva

Purpose. To establish the optimal row spacing and so­wing rate of sorghum seeds of grain varieties ‘Dniprovskyi 39’ and ‘Vinets’, to substantiate their influence on the growing season and biometric parameters of plants in the Right-Bank Forest-Steppe of Ukraine. Methods. Field, laboratory, mathematical and statistical. Results. The most intensive growth and development of sorghum plants was observed when sowing seeds with a row spacing of 45 cm and a seeding rate of 200 thousand pieces/ha. In particular, the duration of the growing season under such conditions was the smallest: 108 days for the ‘Dniprovskyi 39’ variety and 106 days for the ‘Vinets’ variety. At the same time, the indicators of field seeds germination, plant height and stem diameter were maximum in the experiment: ‘Dniprovskyi 39’ – 88.7%, 137.3 cm and 1.7 cm, ‘Vinets’ – 86.9%, 121.8 cm and 1.6 cm, respectively. It was found that an increase in seeding rate reduced indicators of productive tillering, leaf area and weight per plant. The most intense tillering of sorghum plants was observed at a seeding rate of 150 and 200 thousand pieces/ha for all the studied variants of the row spacing: on average, up to two panicles well filled with grain per plant, depending on the varietal characte­ristics. At the rate of 250 thousand pieces/ha, tillering of plants in both varieties was somewhat weaker – 1.0–1.1 panicles per plant. The largest indicators of leaf surface area and weight of one plant were with a row spacing of 45 cm: 1528–2320 cm2 and 169.2–185.6 g in the variety ‘Dniprovskyi 39’ and 1476–2180 cm2 and 143.1–162.3 g in the variety ‘Vinets’ depending on planting density. Reduction of row spacing up to 15 cm and its increase up to 70 cm led to a decrease in the main parameters of plant growth and development. Conclusions. Sorghum plants developed better when sown with a row spacing of 45 cm and a seeding rate of 200 thousand pieces/ha, which were recommended for growing crops in the conditions of the Right-Bank Forest-Steppe of Ukraine.


Author(s):  
I. I. Palamarchuk ◽  

In the results conducted between studies, the studied regulators affect the biometrics and yield of table carrot plants. The greatest influence on the interphase period "root formation - technical maturity" was performed by the regulator Phytocid-r, which helped reduce the growth of the interphase period Shantane KL by 3 days, in the hybrid Brilliance F1 by 4 days. With the use of the growth regulator Phytocid-r of the vegetation period of the population in the variety Shantane KL – 117 days, in the hybrid Brilliance F1 – 118 days, respectively 6 and 7 days shorter with control. The highest weight of root crops during the growing season was observed using the growth regulator Phytocid-p, in the variety Shantane KL the increase relative to control was 15.5 – 23.7 g, in the hybrid Brilliance F1 – 18.5 and 25.5 g. root crops were also characterized by variants using growth regulators Ivin and Emistym C, where the increase relative to the control at the end of the growing season was: in the variety Shantane KL – 4.1-8.3 g, in the hybrid Brilliance F1 – 4.9 and 6.0 g respectively. The growing season of table carrots was characterized by slightly higher temperatures and low rainfall, with a long dry period, which negatively affected the formation of roots of table carrots. However, the highest yield was obtained from the option using the growth regulator Phytocid-p, which provided an increase in yield at the level: in the variety Shantane KL – 8.5 t / ha, in the hybrid Brilliance F1 – 13.3 t / ha. The highest percentage of marketable yield was obtained using the growth regulator Phytocid-p in both varieties and hybrids – 94.8 and 95.2 %, which is more than the control by 11.2 and 11.0 %. The largest mass of root crop was formed by plants using the growth regulator Phytocid-r: in the variety Shantane KL – 112 g, in the hybrid Brilliance F1 – 118 g, which is 23.8 and 25.6 g more than the control. The diameter of the root was in the range of 5.8-7.0 cm and varied slightly from the growth regulator. The hybrid Brilliance F1 was characterized by a longer root length. However, taking into account the applied growth regulator, it was found that the highest figure was for the use of Phytocid-r: in the variety Shantane KL – 17.6 cm, in the hybrid Brilliance F1 – 18.3 cm, which is more than the option without treatment 1.2 and 1.0 cm.


2021 ◽  
Vol 2 (71) ◽  
pp. 10-14
Author(s):  
Z. Tsitskiev ◽  
M. Bazgiev ◽  
K. Badurgova ◽  
I. Arsamakov

ABSTRACT The results of two-year observations of the growth and development of four sunflower varieties: Master, Flagman, Lakomka, Rodnik against the background of the use of three plant growth regulators: Zircon, Epin and Regoplant on the soil in the forest-steppe zone of the Republic of Ingushetia are presented. Studies have shown that the effect of growth regulators begins to manifest itself even during the period of seed germination. The length of seedlings and roots was most influenced by Zircon, less by Regoplant and Epin. Sunflower seeds treated with these growth regulators had roots 2.0-2.5 cm longer than the roots of untreated seeds (control), and the length of seedlings exceeded the control by 2.7-3.5 cm, while the Flagman variety had a small length of seedlings and roots. advantage. During the study period, the Flagman cultivar was distinguished by the highest yield, the Lakomka cultivar was somewhat less productive, and the Rodnik and Master cultivars were the least productive. On average, over two years of research, the varieties Flagman and Lakomka against the background of the use of Regoplant provided 2.5 t / ha of oilseeds, which is significantly more than other options.


2021 ◽  
Vol 110 (2) ◽  
pp. 71-79
Author(s):  
O. Bilinska ◽  
◽  
V. Kulka ◽  
N. Samets ◽  
R. Golod ◽  
...  

O. Bilinska, V. Kulka, N. Samets, R. Golod. The influence of application of the preparation Albit on formation of seed productivity of supplemental potatoe material The article presents the results of research on the influence of methods of application of the complex drug Albit on the formation of potato productivity in the process of reproduction of pre-seed seeds in the south-western part of the Forest-Steppe of Ukraine. In the course of research, it was established that in order to achieve a high level of realization of biological potential of culture and product quality in cultivation of additional seed material of potatoes, it is advisible to conduct the procedure of processing of tubers at planting Albite 100 ml / t and spraying twice in the phase of germination and budding of vegetative plants with the preparation at a dose of 50 ml / ha. Keywords: potato, crop, seed productivity, plant growth regulators, tuber fraction.


Author(s):  
А.L. Toigildin ◽  
◽  
М.I. Podsevalov ◽  
D.E. Ayupov ◽  
А.V. Tyurin ◽  
...  

The article presents the results of evaluating the productivity of corn hybrids for grain with different vegetation periods, depending on the method of protecting plants from contamination and the level of mineral nutrition on leached сhernozem of the Volga forest-steppe zone. Studies conducted during 2017- 2019 showed that the early-maturing hybrids of Gitago maize FAO 200 and the phenomenon of FAO 220 fully realized their potential and provided yield of 8.31 and 8.55 t / ha of grain. These hybrids are characterized by a higher collection of raw protein, the output of exchange energy and feed units in comparison with the hybrids Talisman FAO 180 and Novatop FAO 240. Systems of crop protection from weeds had an impact on both the yield and productivity of corn, which is explained by the different effectiveness of inter-row processing and herbicide in protecting plants from weeds. Thus, when inter-row processing was used, the number of weeds in hybrids averaged 8.4 PCs/m2 , while when applying herbicide, it decreased to 5.1 pcs/m2 , a similar pattern was found when assessing the air-dry mass of weeds, which was 65, 2 g/m2 and 27.5 g / m2 , respectively. On average, the corn grain yield in hybrids increased by 0.92 t/ha when applying herbicide compared to mechanical tillage. The use of leaf fertilizing during the growing season with Izagri Azot and Izagri Zn preparations led to an increase in the yield of corn hybrids: Talisman by 0.57 t/ha, Gitago by 0.48, Phenomenon by 0.81 and Novotop by 0.44 t/ha of grain, as well as an increase in protein collection, exchange energy and feed units when using leaf fertilizing


2021 ◽  
Vol 6 (1) ◽  
pp. 400-412
Author(s):  
Lorraine N. K. Chilipa ◽  
Chikoti Mukuma ◽  
Langa Tembo ◽  
Able Chalwe ◽  
Shadreck Bwembya ◽  
...  

Abstract In Zambia, potato (Solanum tuberosum L.) cultivation is ranked the third most important among root and tuber crops after cassava (Manihot esculenta Crantz) and sweet potato (Ipomoea batatas (L.) Lam.). In spite of its importance, the productivity and cultivation of potato remain low. In the light of this, a survey was conducted in Mbala district to obtain and document farmers’ knowledge on potato cultivation and understand the constraints associated with potato cultivation and management. Four agricultural camps in Mbala district were purposefully sampled due to the high potato cultivation activity. Data were collected from 116 potato farmers through structured questionnaires and focus group discussions. Results showed that three major constraints in potato cultivation were white grub (Phyllophaga spp.), foliar wilts (Ralstonia spp. and Verticillium spp.) and seed source, with a farmer-ranked mean-derived score of 3.75, 3.5 and 2.75, respectively. Farmers ascribed 70% crop damage to white grub (Phyllophaga spp.) and 60% crop damage to foliar wilts (Ralstonia spp. and Verticillium spp.). Other information obtained indicated that the majority of the farmers (>85%) were married, above 35 years and had at least primary education. The majority of the farmers involved in the study had less than 0.25 ha under potato production. To reduce the cultivation constraints for increased potato production in Mbala, direct breeding efforts, potato crop protection and other measures need to be employed.


Author(s):  
Ravindra Kashinath Naitam ◽  
Preeti Deshmukt ◽  
P. C. Moharana ◽  
Indal K. Ramteke ◽  
R. S. Singh ◽  
...  

Potato is one of the most important vegetable crops in India accounting for 20-25% of area under cultivation of vegetables and grown in a wide range of climatic conditions. It is grown in almost all states under diversified agro-climatic conditions. Nearly 80% of the crop is grown in Indo- Gangetic plains comprising Uttar Pradesh, West Bengal, Punjab, Haryana, Bihar and other parts of India like Gujarat and Karnataka. Moreover, within the country, there is a lot of heterogeneity in potato productivity depending upon mostly on management and climatic conditions. The viability of commercial potato production is influenced by spatial and temporal variability in soils, agro climate, and the availability of water resources. The inter and intra-regional variations in productivity within the country are attributed to the variations in bio-physical factors vis-a-vis specific soil-climatic requirements of the crop. The present chapter discusses the impact of climate change on the land resources requirement for potato crop with reference to Indian context.


Sign in / Sign up

Export Citation Format

Share Document