Tag Archives: diseases

741-749 R. Arvola and Ü. Kristjuhan
Workload and health of older academic personnel using telework
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Workload and health of older academic personnel using telework

R. Arvola* and Ü. Kristjuhan

Tallinn University of Technology, Tallinn School of Economics and Business Administration, Tallinn, Estonia;
*Correspondence: rene.arvola@ttu.ee

Abstract:

Aim of the study was to measure telework usage and to explore interactions between health, workload and telework. Telework is work that is carried out outside the central office, involving new technology that permits communication. Work carried out at any time, at any place, has been very common in the case of research institutes and universities. This type of work has advantages and disadvantages for both an employee and employer. The study of telework was carried out in Tallinn University of Technology (TUT) where working at home has been very common for a long time. The questionnaires were sent to academic personnel. The study shows that academic employees preferred teleworking for better concentration on work and saving time and money. There was no significant difference in telework usage by age and teleworkers had fewer complaints about tired eyes, arterial hypertension and stress.

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198-203 B. Bankina and Z. Gaile
Evaluation of barley disease development depending on varieties
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Evaluation of barley disease development depending on varieties

B. Bankina¹ and Z. Gaile²

¹Institute of Soil and Plant Science, Latvia University of Agriculture, Liela 2, Jelgava, Latvia;e-mail: Biruta.Bankina@llu.lv
²Institute of Agrobiotechnology, Latvia University of Agriculture, Liela 2, Jelgava, Latvia;e-mail: Zinta.Gaile@llu.lv

Abstract:

Resistance against diseases is one of the key factors for plant varieties used in organic farming systems. Official variety trials in a certified organic field were inspected during 2004–2008 in the Research and Study farm “Vecauce”of LLU.Net blotch (caused by Pyrenophora teres) and mildew (caused by Blumeria graminis f.sp. hordei) were the most significant diseases in spring barley. Rust (caused by Puccinia hordei (syn. P. anomala) was observed very seldom and leaf scald (caused by Rhynchosporium secalis) was noted only in 2008 for a new breeding line, G 131.The incidence of net blotch fluctuated from 0–100% depending on year and variety, butthe incidence of mildew was 3–100%. The incidence of barley rust did not exceed 29% (severity only 0.7%).The obtained data gave general information about the spectrum of diseases, but they areinconsistent and are seriously influenced by meteorological conditions: artificial inoculation is necessary for better variety selection, especially for organic farming.

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430-435 R. Nekrošienė
Cultivation possibilities for Thyme, an important medicinal plant, in Western Lithuania
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Cultivation possibilities for Thyme, an important medicinal plant, in Western Lithuania

R. Nekrošienė

Botanical Garden of Klaipėda University, Kretingos 92, LT–92327 Klaipėda, Lithuania;tel. + 370 46 398833, fax. + 370 46 398837; e-mail: rita_nekrosiene@mail.ru

Abstract:

The cultivated medicinal plant production covers only 4–6% of the demand for raw material of the pharmaceutical industry in Lithuania, suggesting that medicinal plant cultivation may be an alternative business for organic farming. Phenology and biological parameters (plant height in flowering phase, number of twigs, air-dry mass), occurrence of diseases and pests of some medicinal plants, as Thymus serpyllum, T. pulegioides and T. vulgaris were studied in the field collection at the Botanical Garden of Klaipeda university (Western Lithuania) in 2001–2006. It was established that the beginning of the vegetation period of T. pulegioides was the same in different years. The amount of precipitation and average air temperature at the beginning of vegetation had influence on the preparation time of medicinal material by thyme, especially T. pullegioides and T. vulgaris. Air-dry mass of T. pulegioides was by 4–18 g m-2 more than the mass of T. serpyllum and T. vulgaris. Pests infected Thymus by 4.5–8.8%; severity of diseases varied from 0.5 to 4.5% in different years.

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737-743 A. Sasnauskas, V. Trajkovski, S. Strautina, O. Tikhonova, T. Šikšnianas,M. Rubinskiene, P. Viškelis, J. Lanauskas, A. Valiuškaitė,R. Rugienius and Č. Bobinas
Evaluation of blackcurrant cultivars and perspective hybrids in Lithuania
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Evaluation of blackcurrant cultivars and perspective hybrids in Lithuania

A. Sasnauskas¹, V. Trajkovski², S. Strautina³, O. Tikhonova⁴, T. Šikšnianas¹,M. Rubinskiene¹, P. Viškelis¹, J. Lanauskas¹, A. Valiuškaitė¹,R. Rugienius¹ and Č. Bobinas¹

¹Lithuanian Institute of Horticulture, Kauno 30, Babtai, Kaunas district, LT-54333, Lithuania
²Swedish Pomological Science Centre, Stubbaröd 2818, S-26023 Kågeröd, Sweden
³ Latvia State Institute of Fruit-Growing, Graudu 1, Dobele, LV-3701, Latvia
⁴N.I. Vavilov Institute of Plant Industry, 42-44 B. Morskaya Str, 190000, St. Petersburg, Russia

Abstract:

A cooperative blackcurrant breeding project between Sweden, Russia, Latvia and Lithuania studied yield, resistance to fungal diseases and pest, biochemical composition of berries of 20 new blackcurrant cultivars and hybrids at the Lithuanian Institute of Horticulture in 2004-2008. The blackcurrants were cultivated without plant protection against either diseases or pests. Yield, damage by fungal diseases and pest and biochemical composition was investigated. The hybrids BRi 9504-5, BRi 9568-1A, BRi 9508-3A and BRi 9508-3B were selected as possible cultivars.

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59-71 R. Skuodienė and R. Nekrošienė
Impact of perennial legumes and timothy as green manure on productivity of Secale cereale L. and x Triticosecale Wittm and on occurrence of cereal diseases
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Impact of perennial legumes and timothy as green manure on productivity of Secale cereale L. and x Triticosecale Wittm and on occurrence of cereal diseases

R. Skuodienė¹ and R. Nekrošienė²

¹Lithuanian Institute of Agriculture, Vezaiciai Branch,Vezaiciai, Gargzdų 29, LT-96216 Klaipeda distr. Lithuania;e-mail: rskuod@vezaiciai.lzi.lt
²Botanical Garden of Klaipeda University,Kretingos 92, LT-92327 Klaipeda, Lithuania; e-mail: bot.sodas@one.lt

Abstract:

In 2002–2005 experiments were carried out at the Lithuanian Institute of Agriculture’s Vėžaičiai Branch (West Lithuania) on a podzolized gleyic soil to study 1) the ecological significance of perennial legumes and timothy used as green manure for the biological properties of triticale and rye, and 2) on diseases affecting these cereals. Our experimental evidence suggests that residues of the perennial grasses tested and ploughed-in aftermath contributed different contents of nitrogen to the soil. The highest content of nitrogen (185.8 kg ha-1) and other nutrients (P2O5, K2O) was contributed to the soil with the addition ofred clover residues and aftermath. However, when triticale and rye were grown after white clover as a preceding crop (1st crop for forage, aftermath ploughed in), the highest grain yield (on average 3.13 t ha-1 of triticale and 3.82 t ha-1 of rye) was obtained, which was by 0.34 and 0.28 t ha-1 higher compared to grain yield following similarly managed red clover. It was determined that some yield-forming indicators of cereal, such as plant height, ear length, number of grains per ear were higher for white clover rather than for red clover or timothy. The choice of preceding crop had no significant effect on differences in protein content in the winter cereal grain. However, different growing conditions of winter cereals, i.e. different preceding crops, had a significant effect on the occurrence of scald, brown rust and septoria.

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