Wyniki wyszukiwania - AGRO

1

Effect of water stress on different enzymatic activities in wheat

100%

Ashraf M. Y., Azmi A. R., Khan A. H., Naqvi S. S. M., Ala S. A.

Acta Physiologiae Plantarum

|

1995

|

tom 17

|

nr 4

2

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Quantitative profile analysis of mulberry silkworm Bombyx mori L. (CSR2XCSR4)

88%

Reddy B. V., Divya P., Anitha M.

International Letters of Natural Sciences

|

2015

|

tom 07

Bombyx mori. L. (CSR2XCSR4) is a bivolitne crossbreed that produces high quantity of silk. The weights of worms and glands are directly related to the yield of silk, higher larval weights leads to higher silk production. In the present study, quantitative parameters of 5th instar and pupal stages of silkworm larvae were observed. The analysis of quantitative estimation showed that the maximum weights and lengths of silk gland and silk worm were recorded on 7th day of 5th instar larval stage. The day dependent variation in protein concentration was observed in total silk gland 5th instar larval and pupal stages.

3

The effect of water deficit and UV-B radiation on oxidative stress markers and growth parameters in barley seedlings

75%

Paczkowska M., Bandurska H.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

4

Determination of the impact of soil compaction on germination and seedling growth parameters of common beech in the laboratory conditions

75%

Kormanek M.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2013

|

tom 12

|

nr 1

The paper presents the results of laboratory research on the effects of different soil compaction caused by varying unit pressure and its impact on germination and growth parameters of common beech. Soil for the research was taken from the forest stand, and then poured into prepared PVC cylinders. Pressure was exerted on the soil with use of the stamp, on a specially prepared static stand. Unit pressure ranged from 50 to 300 kPa with 50 kPa resolution. Each variant of the exerted unit pressure and control without pressure was repeated three times. 21 seeds of common beach were sown into a single cylinder. The cylinders were then placed in controlled conditions and after 2.5 months all seedlings parameters were measured. 234 seedlings were analysed (sown 441). It was found that the seeds were influenced by the place of sowing. There were significant correlations between the exerted unit pressure and the length of root system of plants sown away from direct exposure to the stamp, as well as all the plants together. With the increased unit pressure the length of root system decreased. Sowing place turned out to be important for the root neck diameter, root dry weight and whole plants.

5

Changes in antioxidant enzymes activity under thermal stress - impact of 24-epibrassinolide

75%

Pociecha E., Janeczko A.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

6

Magnesium content in mares' milk and growth parameters in their foal

75%

Pieszka M., Kulisa M.

Journal of Elementology

|

2005

|

tom 10

|

nr 4 Suppl.1

81

7

Growth of Vaccinium myrtillus L. [Ericaceae] in spruce forests damaged by air pollution

75%

Kukla J., Kuklova M.

Polish Journal of Ecology

|

2008

|

tom 56

|

nr 1

The growth parameters of the Vaccinium myrtillus shoots were studied on a vertical transect crossing localities “Muraň“ (1080–1110 m a.s.l., skeli-humic podzols, Fageta abietino-piceosa) and “Hliniky“ (950–960 m a.s.l, dystric cambisols, Abieti-Fageta inferiora) in the protected zone of the National park “Slovensky raj“ (Spiš region, East Slovakia). In the localities, both contaminated by air pollution research plots in undamaged and damaged (with lower stand density and canopy compactness) spruce ecosystems were established. The content of Al and Cr was significantly higher in cambisols, and that of Cd – in podzols. The limit values calculated for both soils have been exceeded only in case of mercury. The Al content in bilberry twigs exceeded the background values (by 44–76%) in case of the both plots situated on locality “Muraň”, and that of Ni and Pb concentrations (by 3–60%) only on damaged plot. The mean content of Ni and Pb was significantly higher in bilberry twigs growing on podzols and the mean content of Al was significantly higher in plants on undamaged plots. The mean length, weight as well as energy content of bilberry twigs were significantly higher in damaged spruce plots (on average by 33%), probably due to favourable light conditions.

8

Sensitivity of maize seedlings to Cd as measured by leaf growth parameters, photosynthetic pigment content and Kautsky effect

75%

Drazkiewicz M.

Biological Bulletin of Poznań. Supplement

|

1996

|

tom 33

9

The growth relationships in maiden trees of sour cherry ‘Lutowka’

63%

Lipecki J., Lipa T., Szot I.

Acta Agrobotanica

|

2015

|

tom 68

|

nr 3

The studies were conducted in a nursery of sour cherry ‘Łutówka’ budded on Prunus mahaleb L. in the years 1993, 2000–2003, and 2013. The height of trees, the diameter of stems, and the length of lateral shoots were measured. The air temperature and precipitation higher than the long-term mean (by approximately 10 % and 28%, respectively) contributed to the increase in the stem diameter, the total length of shoots, and the number of shoots per tree. The length of lateral shoots increased from the top of the crown towards the lower parts, however, the number of feathers per tree and the mean length of shoots decreased. A strong positive relationship (r = 0.74, P < 0.05) was revealed between the stem diameter and the total length of shoots. Generally, the correlations between the type of growth of sour cherry maiden trees and morphological traits were similar to those characteristic for apple maiden trees or “knip-boom” type trees.

10

Effect of municipal solid waste on the growth of maize (Zea mays L.)

63%

Simeon P. O., Ambah B.

International Letters of Natural Sciences

|

2013

|

tom 02

A pot experiment was conducted in the green house to determine the effect of municipal solid waste on the growth of maize (zea mays). Growth parameters of percentage emergence, plant height, leaf area and number of levers per plant were collect and subjected into statistical analysis, using ANOVA and fisher’s L.S.D. at 5 % probability level. Plant growth parameters decreased with increase in cropping cycle. Similarly, maize grown on dumpsite soils did better than the control soil samples. It show increase in plant height, leaf area and number of leaves per plant at a range of 16.82 cm to 12.87 cm, 5 to 4 and 64.69 cm to 59.88 cm for the dumpsite and control samples respectively. Soil PH, organic matter (OM), total Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), Sodium (Na) and Effective Cat-ion Exchange Capacity (ECEC) decreased with increase in cropping cycle respectively. The Dumpsite soil sample recorded higher mean values than the control (P < 0.05). There is every indication that municipal solid waste is beneficial to plant if only proper and careful sorting and separation of hazardous waste is done.

11

Effect of salicylic acid on parameters of cucumber seedlings treated with herbicide paraquat

63%

Zurek A., Grzys E.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

12

Effect of saline stress on yield components, growth parameters, carbohydrates, leaf water content and photosynthesis of hull-less barley (Hordeum vulgare L.) cultivars

63%

Bagheri A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2010

|

tom 545

A field experiment was carried out at the Research Station of Eghlid-Azad University Iran in two years (2007 and 2008), based on a randomized complete block design with three replications. Three saline irrigation water treatments: 1 control, 6 and 12 dS·m-1 were arranged as main plots and three hull-less barley cultivar (U46M, GIZA 129 and PV110) were used as subplots. The measured parameters were growth, yield components, glucose, starch and sucrose content, relative water content and photosynthetic parameters in flag leaves. The results indicated that the number of ear and grain per plant were reduced significantly by stress. Grain weight was less sensitive to stress. Biological and grain yields were decreased by stresses. Among the cv. U46M had the lowest and PV110 the highest grain and biological yield. Biological yield differences were related to lower plant height and tillers. The grain yield reduction was related to ear no. per plant and grain no. per ear reductions. Salinity stress caused reduction in starch and increased sucrose contents. There were no significant differences between cultivars in glucose content. There were high negative correlation between sucrose content and grain yield and positive correlation between grain yield and starch content.

13

Growth parameters and ionic versus chelated zinc uptake in Pisum sativum L.

63%

Glinska S., Gapinska M., Kryczka M., Skiba E., Kubicki J.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2013

|

tom 94

|

nr 3

14

Improvement of growth parameters of prune callus cultures destined to initiate cell suspensions

63%

Hanus-Fajerska E.

Acta Societatis Botanicorum Poloniae

|

2006

|

tom 75

|

nr 1

5-9

Callus was inducted on wounded leaf explants from shoot tips of a particular Prunus domestica 'Węgierka Zwykła' clone cultivated in vitro. The improvement of Sweet Common Prune stock callus tissue parameters has been approached by experiments on culture protocols. Either for the induction or maintenance of tissue modified Murashige and Skoog medium, supplemented with different auxins and cytokinins at varying concentrations, was used. The goal was to obtain the highiest possible proliferative capacity of friable tissue without any signs of cell redifferentiation for about 10 weeks. The choice of auxin was an important factor regulating the rate and kind of tissue growth, and for the examined prune clone auxin alone brought a relatively small proportion of cells into division, so advantageous was to combine it with oxygenated cytokinin. Friable tissue was obtained on media supplemented with dicamba or with picloram, but not with 2.4-D neither alone nor combinated with IBA.

15

Intensity of lipid peroxidation in the seedlings of Arabidopsis thaliana under the influence of prolonged water stress

63%

Bobrownyzky J.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2008

|

tom 524

This study presents the data concerning the intensity of lipid peroxidation in seedlings of Arabidopsis thaliana, which were grown under the prolonged water stress on the agarized sterile medium. Growth parameters, such as length of the main root and fresh matter were measured. The seedlings of A. thaliana subjected to water deficit exhibited a decrease in the growth of the main root and fresh weight in comparison to the control plants. Since peroxidation processes due to the concentration of malonic dialdehyde and the level of chemiluminescence of plant homogenate decreased at the end of the experiment, it was concluded that plants were able to adapt to water stress conditions.

16

Comparison of growth parameters, yields and qualitative properties of muscles in broiler hybrids

63%

Nagy J., Popelka P., Korimova L., Marcincak S., Dicakova Z.

Medycyna Weterynaryjna

|

2006

|

tom 62

|

nr 05

520-523

The aim of this study was the comparison of growth parameters, yields and qualitative properties of muscles in broiler hybrids ISA 220 and intermediate type ISA 257. One hundred and one one-day-old chicks, comprising approximately equal numbers of males and females were used. During the experiment the feed consumption (per 1 kg of body weight gain), weight gains, and body weight were recorded. After the processing of the broiler chickens, the weight of carcass, and yields (of the whole carcass, breast muscle, thighs, boned thigh muscles, wings, skeleton) were recorded. The breast and thigh muscles were analyzed for the content of nitrogen compounds, fat, water, amino acid, and weight losses during the cooking. The sensory properties of breast and thigh muscles of both groups were compared. The mean body weight of the broiler chickens at the beginning of the experiment was 43 g (ISA 257), and 36 g (ISA 220) respectively. On day 45, the mean body weights and carcasses were significantly higher (p < 0.05) in group ISA 220 (2507 g and 1676 g respectively) in comparison with ISA 257 (1890 g and 1249 g). These results corresponded with the results of carcass yields. The mean yield of the whole carcass was significantly higher (p < 0.05) in ISA 220 (66.64%) in comparison with ISA 257 (66.06%). However, the mean yields of thighs, boned thigh muscle, and wings, which are considered as ideal parts, for grilling were significantly higher (p < 0.05) in ISA 257. Higher differences were recorded in fat and water content. The hybrids ISA 220 contained a higher amount of water in breast and thigh meat, and fat content was higher in meat of ISA 257, mainly in breast meat. The results of sensory examination showed better acceptability of ISA 257 hybrid than ISA 220.

17

Length-weight relationship and growth parameters of the commercial fish Pagellus erythrinus (Linnaeus, 1758) (Actinopterygii: Sparidae) from Northern and Southern Tunisia

63%

Fassatoui C., Hmida L., Jenhani A. B. R., Romdhane M. S.

Biological Letters

|

2019

|

tom 54

|

nr 1

18

Involvement of Arabidopsis p23 in hormone regulation through regulation of reactive nitrogen species

63%

D'Alessandro S., Zanin S., Lo Schiavo F., Ruzzene M., Zottini M.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2013

|

tom 94

|

nr 2

19

Effect of using herbs in pig diets on growth parameters, carcass traits and dietetic value of pork

63%

Paschma J., Wawrzynski M.

Polish Journal of Natural Sciences. Supplement

|

2007

|

tom 04

71-76

20

Effects of different hormonal treatments on growth parameters and secondary metabolite production in organ culture of Hyssopus officinalis L.

63%

Shoja H. M., Shishavan H. K.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2021

|

tom 102

|

nr 1

Ograniczanie wyników