Tag Archives: plant height

xxx І. Diordiieva, L. Riabovol, Ya. Riabovol, O. Serzhyk, S. Maslovata, L. Musienko4, S. Karychkovska and M. Fesko
Development and analysis of initial material of winter spelt wheat (Triticum aestivumL. ssp. spelta) for productivity breeding
Abstract |

Development and analysis of initial material of winter spelt wheat (Triticum aestivumL. ssp. spelta) for productivity breeding

І. Diordiieva¹*, L. Riabovol¹, Ya. Riabovol², O. Serzhyk¹, S. Maslovata³, L. Musienko4, S. Karychkovska⁵ and M. Fesko¹

¹Uman National University, Faculty of Agronomy, Department of Genetics, Plant Breeding and Biotechnology, 1 Institytska Str., UA 20301 Uman, Ukraine
²Uman National University, Faculty of Agronomy, Department of Plant Growing, 1 Institytska Str, UA 20301 Uman, Ukraine
³Uman National University, Faculty of Foresty and Landscape Management, Department of Foresty, 1 Institytska Str., UA 20301 Uman, Ukraine
⁴Uman National University, Uman, Ukraine, Faculty of Agronomy, Department of Agrochemistry and Soil Science, 1 Institytska Str, UA 20301 Uman, Ukraine
⁵Uman National University, Faculty of Management, Department of Ukrainian and Foreign Languages, 1 Institytska Str., UA 20301 Uman, Ukraine
*Correspondence: diordieva201443@gmail.com

Abstract:

In the studies of 2019–2024, the productivity indicators of the starting material of winter spelt wheat, created by hybridization with soft winter wheat at Uman National University (Right-Bank Forest-Steppe of Ukraine), were analyzed. In the process of research, spelt wheat samples were identified that can be used in practical selection as donors of genes for certain traits, in particular, high yield (5.25–5.82 t ha-1); semi-dwarfism and low-stemming in breeding for plant height reduction (samples 1786, 1817, 1559, 1674 and 1755; improved grain threshing (91%) and optimal spike structure (samples 95, 155, 1725); high grain protein content (23.8–28.7%), gluten (49.1–57.2%), alveograph indicator (340–425 alveograph units), grain hardness (60.8–68.2 instrument units) in breeding for grain quality (samples 13, 40 and 128). The correlation between productivity indicators was analyzed and it was found that the greatest influence on spelt yield is the quality of grain threshing (r = 0.89 ± 0.00).

Key words:

, , , ,



352-364 I. Didur and H. Pantsyreva
Peculiarities of soybean growth and development on gray forest soils
Abstract |
Full text PDF (545 KB)

Peculiarities of soybean growth and development on gray forest soils

I. Didur* and H. Pantsyreva

Vinnytsia National Agrarian University, Educational and Scientific Institute of Agrotechnology and Environmental Sciences, Sonyachna Str. 3, UA21008 Vinnytsia, Ukraine, ORCID ID: https://orcid.org/0000-0002-6612-6592
*Correspondence: dim@vsau.vin.ua

Abstract:

The scientific and experimental five-year study highlighted the detailed development of technological techniques for growing soybeans under different hydrothermal growing conditions on gray forest soils. The conducted experimental studies established that under the influence of climatic factors, the duration of the growing season of soybean plants changes, and these factors, as a result, affect the field germination, the conservation factor and, as a result, the yield of plants. It has also been proven that during the ontogenesis of the plant, there are natural changes in linear dimensions depending on varietal characteristics, weather conditions and factors that were investigated. On average, over the years of research, the length of the soybean vegetation period ranged from 110 to 118 days, while the longest vegetation period was recorded on the experimental variants, where seeds were inoculated with the BTU Bioinoculant preparation and two foliar feedings were carried out in phase 3 – the third leaf and budding Helprost soybean. Starting from the flowering phase, soybean plants reacted more intensively to the studied factors. On the options where foliar fertilizing was carried out with Helprost soy mineral fertilizer (2.5 L ha-1) against the background of inoculation with BTU Bioinoculant (2 L t-1), the flowering period lasted 28 ± 3.6 days, which is 3 days more compared to with areas where foliar fertilization was not carried out and for 6 days – compared to the control. This is explained by the influence of a number of factors, in particular, hydrothermal, biotic, soil and anthropogenic. During the period of full ripeness, in connection with the action caused by pests and diseases, certain technological techniques and factors that were put to study, the density of plants according to the experimental options was from 488 ± 28.3 to 552 ± 34.5 thousand ha-1.

Key words:

, , , , , , , ,



637-643 Kh.S. Mayrapetyan, A.S. Eghiazaryan, S.A. Eloyan and A.S. Karapetyan
Role of planting density on the growth efficiency of Juniperus virginiana L. under open-air hydroponic conditions of the Ararat Valley
Abstract |
Full text PDF (364 KB)

Role of planting density on the growth efficiency of Juniperus virginiana L. under open-air hydroponic conditions of the Ararat Valley

Kh.S. Mayrapetyan, A.S. Eghiazaryan, S.A. Eloyan and A.S. Karapetyan*

G.S. Davtyan Institute of Hydroponics Problems, NAS RA, 108 Noragyugh,
AM0082 Yerevan, Armenia
*Correspondence: astghik84k@rambler.ru

Abstract:

Juniperus virginiana (J. virginiana) is an evergreen coniferous tree, which has wide usage not only in green construction, but also in folk medicine as a source of valuable bioactive substances. The high demand for the tree forces the development of new methods for plant cultivation. Hydroponics is considered to be one of the most popular methods. As the soilless growing perspectiveness of J. virginiana in Armenia has previously been confirmed by our experiments, the optimization of growing conditions, which bests suits for the enhancement of the growth efficiency and accelerated production of viable trees remains an actual issue. Optimization of the planting density (PD) is one of them. Taking into account the above-mentioned in the frame of this study the role of PD on the growth efficiency of J․ virginiana has been studied in open-air hydroponic conditions of the Ararat Valley for the first time. The saplings of the tree were planted in volcanic red slag with three different PDs: 10, 12 and 14 plants per square meter. According to the biometrical measurements, no significant differences between the variants were observed at the end of the experimental period. In October an average height and stem diameter of the plants grown in various PDs were fluctuated between 71.7–76.5cm and 13.9–14.5mm, accordingly. Positive relationship between the plant height and stem diameter of J․ virginiana during the whole vegetation period has been observed. Our preliminary studies showed, that all the applied PDs are preferable for early years of hydroponic growing of
J․ virginiana in open-air hydroponic conditions of the Ararat Valley.

Key words:

, , , ,



99–103 Ü. Tamm
The variation of agronomic characteristics of European malting barley varieties
Abstract |
Full text PDF (236 KB)

The variation of agronomic characteristics of European malting barley varieties

Ü. Tamm

Jõgeva Plant Breeding Institute, 48309 Jõgeva, Estonia; e-mail: Ylle.Tamm@jpbi.ee

Abstract:

The field experiments were carried out in 1999_2002 at the Jõgeva Plant Breeding Institute (PBI) in Estonia to investigate the genetic and environmental variation of agronomic characteristics of malting barley. 57 malting barley varieties were included in the trials. Grain yield, number of tillers per 1m², plant height, lodging resistance and growing time were measured in the trial with malting barley.
 Despite very different weather conditions, the grain yield stability of malting barley varieties was very high. Tillering  showed somewhat lower genetic variability compared to the variation of grain yield. The plant height indicates moderate genetic variability. Lodging resistance and growing time showed  low genetic variability.

Key words:

, , , , , , ,