Beniko and Bialobrezskie – Industrial Hemp Varieties in Lithuania (original) (raw)
Related papers
Herba Polonica
Summary Industrial hemp (Cannabis sativa L.) attracts increasing interest of growers, in relation to both industrial and medical purposes. Construction is the most promising area of the economy for hemp, and specifically, the fast-growing production of insulation and bio-composite materials. The most significant factors affecting the final yield of hemp seeds and biomass include: climatic factors, i.e. influence of weather conditions that determines the content of cannabinoids in plants; genetic predisposition of the variety used as well as agrotechnical factors. The article provides information on the botanical characteristics of fiber hemp, hemp cultivation area, Polish monoecious varieties of industrial hemp, hemp's agricultural requirements, including: the demand for macroelements (nitrogen, phosphorus, potassium, calcium); choice of soil, pioneer crop, and field preparation; sowing timing and density; harvest time; water conditions; heat and light requirements for hemp. The...
Industrial Hemp Varieties Productivity Potential in the Latvian Climatic Conditions
ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference
Varieties grown for fibre-only will be established, managed and harvested differently than varieties grown for seeds or dual-purpose. The aim was analysed yield productivity and length of vegetation period dependency of the two types of hemp variety and identified perspective hemp variety for highest yield under different meteorological conditions in Latvia. Varieties/line from diverse European and Latvian origin (seed hemp varieties/ line 'Adzelvieši', 'Pūriņi', KA-2-2011, 'Finola', 'Henola' and fibre hemp varieties 'USO 31', 'Futura 75', 'Austa') were sown in randomized field experiments in Latvia. Biomass, stem, seed yield, fibre contents and vegetation period length were assessed across tree growing seasons from 2020 to 2022. Results show that hemp, seeds and fibre varieties/line, performed well giving high yield productivity between variety. Agrometeorological conditions for hemp growth and yield were favourable in 2022. I...
Investigation of hemp (Cannabis sativa L.) crop weediness
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference, 2015
The investigation of hemp crop weediness was carried out at the Upytė Experimental Station of the Lithuanian Research Centre for Agriculture and Forestry in 2014. Bi-factorial trial was carried out: Factor A – variety (A1 – USO 31; A2 – Bialobrzeskie); Factor B – sowing rate (B1 – 45 kg ha<sup>-1</sup>; B2 – 70 kg…
Agronomy of fibre hemp (Cannabis sativa L.) in Europe
Industrial Crops and Products, 2000
Fibre hemp may yield up to 25 t above ground dry matter per hectare (20 t stem dry matter ha − 1 ) which may contain as much as 12 t ha − 1 cellulose, depending on environmental conditions and agronomy. Its performance is affected by the onset of flowering and seed development. Effects of cultivar and management on yield and quality were tested at three contrasting sites in Italy, the Netherlands and the UK in three years, making use of standardised protocols for experimental design and research methodology. Highest yields (up to 22.5 t dry matter ha − 1 ) were obtained in Italy when later cultivars were used. Attainable yields proved slightly lower in the Netherlands and much lower in the UK. The quality of the cellulose was relatively stable over the growing season, but lignification may proceed rapidly some time after flowering. Crop development was very rapid and crops maintained green leaf area for a long time, thus radiation interception was considerable. The radiation use efficiency changed during development. It was lower after flowering (about 1.0 g MJ − 1 PAR) than before (about 2.2 g MJ − 1 PAR). Growing earlier cultivars to obtain some seed set advanced the reduction in radiation use efficiency. Nitrogen proved to affect yield only slightly. A relatively small amount of fertiliser will be adequate to cover the crop's needs. Plant density declined during growth in a site-specific manner when it was high initially. Very low plant densities may not show this self-thinning but reduced yield and (especially) quality. Final plant densities were proven to depend more on initial plant stands than expected from literature. This was true at all three contrasting sites and in the different years. Nitrogen and plant density hardly interacted within one site. Results suggest that hemp can yield large quantities of useful cellulose when ecologically adapted cultivars are sown in proper plant densities. The cultivation is environmentally friendly with little harmful accumulation or emission of chemical inputs. More research on ideotyping is required and breeding efforts should be broadened.
Engineering for Rural Development, 2017
Nowadays the industrial hemp (Cannabis sativa L.) becomes an attractive plant due to its multiple uses. In 2016 the cultivated area of this plant in Lithuania was close to 2.5 thousand hectares. The main interest areas in this plant are valuable seeds, fibre and hurds, cannbinoides and essential oils, and, of course, energy potential. The investigation of hemp biomass and chemical composition was carried out at the Upytė Experimental Station of LRCAF in 2014. The data showed that both factors had significant influence on hemp fresh and totally dry above-ground biomass. Notwithstanding that the amount of C, N, C/N, S, K, Na, crude ash and the calorific value were evaluated, the tested factors did not show any significant influence on the tested parameters (chemical composition).
Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, 2015
Hemp (Cannabis sativa L.) was used for textile and cordage more than 4000 years. The cultivation of industrial hemp declined in the 19th century but it remains one of the oldest crops in history. Despite of the decline, nowadays interest for this crop has recently been renewed within various European countries (Roman et al., 2012). The aim of the research is to observe the evolution of production values and physical parameters (MMB-grain) under the influence of different seeding space and organic fertilization level recorded in some hemp varieties approved in Romania, with a low level of THC.
Agronomy
Farmers’ interest in renewable raw materials such as hemp (Cannabis sativa L.) fibres has recently increased, but hemp productivity is strongly affected by genotype and environment conditions. A 3-year field experiment was conducted under Mediterranean environment in northern Greece to evaluate the productivity (regarding fibres and seeds) of six monoecious hemp varieties. The vars. Futura 75 and Bialobrzeskie provided the greatest (p < 0.01) fibre productivity (4.57 and 4.27 t ha−1, respectively), which were 77.1% and 65.5%, respectively, greater than that of the least productive var. Fedora 17. However, the vars. Santhica 27, Tygra and Bialobrzeskie provided the highest (p < 0.05) seed yield (2.7, 2.9 and 2.6 t ha−1, respectively), which were 28.6%, 38.1% and 23.8%, respectively, greater than that of the least productive var. Futura 75. Hemp fibre yield was strongly positively correlated with total biomass (R2 = 0.8612) and stem biomass yield (R2 = 0.9742), while it was inve...
Study of the Correlation of Some Growth Parameters at Dioecious Hemp
2022
The present paper deals with the study of the correlation of some growth parameters to 10 bioecotypes of dioecious hemp (Cannabis sativa L) at A.R.D.S. Lovrin. Ten bioecotypes were studied, four of which are established varieties created at A.R.D.S. Lovrin (Lovrin-110, Silvana, Armanca și Teodora) and six perspective lines (Zak-127xLv-110, Lv-428/01, S33/08 R, Lv-434x406CS/04, S354/15, Lv-149 CS/16). From the existing biological material, the dioecious hemp variety Silvana was chosen as a control. A monofactorial experience, having as a factor the existing biological material, was placed in the field of the laboratory for the improvement of dioecious hemp. The four parameters studied and presented are: the total length of the plant, the length of the inflorescence, the technical length and the diameter of the stem of the hemp plants, parameters that were influenced by the climatic conditions of the studied years 2020-2021. Compared to the blank variant, five of the six lines of perspective stand out in terms of the superiority of the technical length of the stem, two of them with very significant positive differences, statistically provided for the probability of transgression 0,1 %.
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference
The investigation on hemp fibre quantity and quality as influenced by genotype and seed rate was carried out at the Upytė Experimental Station Lithuanian of the Lithuanian Research Centre for Agriculture and Forestry in 2014. Bi-factorial trial was carried out: Factor A – variety (A1 – USO 31; A2 – Bialobrzeskie); Factor B – sowing rate (B1 – 45 kg ha-1; B2 – 70 kg ha-1). Data showed that variety (genotype) had a significant influence on fibre content (after dew-retting as well after water-retting) – it was higher for variety Bialobrzeskie and amounted to 37.2 and 34.5%, respectively. Seed rate (or crop density) did not show significant influence neither on fibre content nor on fibre quality (flexibility, strength) parameters.
Comunicata Scientiae, 2020
Under the effects of climate change new drought tolerant crops are imperative to introduce in irrigated agricultural areas of Mediterranean countries. In this sense, hemp (Cannabis sativa L.) represents an alternative in many semi-arid agricultural areas of Mediterranean basin because of its low water requirements and cost effectiveness when it is developed under non controlled conditions. The aim of this work was to evaluate the potential yield of five new hemp varieties (Sara, Pilar, Aida, Theresa, and Juani) cultivated under high tunnel conditions in a semi-arid Mediterranean area, and also to study the effect of plant density on active biomass production and cannabinoids biosynthesis (cannabidiol, CBD and cannabigerol, CBG) at different plant positions. The trial was conducted under plastic macro-tunnels during two seasons (2014 and 2015), from May to October. The agronomic response and the chemical profiles of the studied varieties were evaluated at the end of each season. Moreover, it was monitored the differentiation in terms of active biomass production and cannabinoids biosynthesis in different plant organ positions (at upper, medium, and lower). Additionally, during the second season, three different plant densities (PD 1 , 9,777; PD 2 , 7,333; and PD 3 , 5,866 plants• ha-1) were tested in order to define the the best of them for maximizing CBD and CBG productions. The findings highlighted significant differences in yield between cultivars within the CBD and CBG. Moreover, plant density was a determinant factor related to active biomass production and cannabinoids contents, PD 3 representing a suitable strategy to maximize the cannabinoids production minimizing the requirements of rooted apical cuttings. These results allowed concluding that these new hemp cultivars together with the adopted agronomic practices in this experience would be very appropriate for CBD and CBG productions, being determinant to consider the plant density and the cultivar for both studied chemotypes.