Search Results

You are looking at 1 - 10 of 10 items for :

  • Plant Science x
Clear All
Open access

A.A. Eslami, S.A. Khodaparast, S. Mousanejad and F. Padasht Dehkaei

Summary

Sclerotium rolfsii is a soil borne pathogen responsible for root and stem rot on a wide range of crops. This study was conducted to identify the virulence of different S. rolfsii isolates on a susceptible local peanut germplasm and determine the resistance of 20 peanut genotypes to the most virulent isolate and also the relationship between virulence and mycelial compatibility groups (MCGs). Seventy eight isolates of this fungus from 10 host plants and six known MCGs were used in the experiment. The experiment was done in greenhouse conditions (25±5°C) using a complete randomized block design with three replications. Pots containing sterile soil (pH=6.7) were inoculated with barley seeds colonized by each isolate separately before being seeded with the peanut germplasm. Disease severity was assessed by scoring the wilting, yellowing or death of plants, mycelia or sclerotia production on the soil surface or on plant stem, stem area affected (%) and stem lesion length, at the stage of plant maturity. Also, shoot wet weight and plant height were recorded at this stage. According to the results of the pathogenicity tests, all of the isolates were virulent on the susceptible peanut germplasm and the virulence diff ered signifi cantly between the isolates (P≤0.01). There was no relationship between the virulence of the five groups of isolates identified in the present study and the MCGs. The peanut genotype 140, which was better than the others based on seed size, plant height and the canopy size, was also the most resistant one

Open access

R. Seyed Sharifi, R. Khalilzadeh and M. Vatandoost

qualitative characteristics of Solidago canadensis "Tara" using cycocel and planting density under drip irrigation and lighting systems. Life Sci. J., 11 (6): 110-118. Piccinin, A.M., Muniz-Terrera, G., Clouston, S., Reynolds, C.A., Thorvaldsson, V., Deary, I.J. & Deeg, D.J. (2013). Coordinated analysis of age, sex, and education effects on change in MMSE scores. J. Gerontol. B. Psychol. Sci. Soc. Sci., 68: 374-390. Rademacher, W. (2000). Growth retardants: effects on gibberellin biosynthesis and other metabolic pathways. Annu. Rev. Plant

Open access

Joacim Näslund, David Berger and Jörgen I. Johnsson

and Sociobiology, 70(12), 2111-2125. DOI 10.1007/s00265-016-2215-y. Näslund, J., Saarinen Claesson, P. & Johnsson, J.I. (2017a) Performance of wild brown trout in relation to energetic state and lab-scored activity during the early-life survival bottleneck. Behavioral Ecology and Sociobiology, 71(11), 165. DOI 10.1007/s00265-017-2395-0. Näslund, J., Sandquist, L. & Johnsson, J.I. (2017b) Is behaviour in a novel environment associated with bodily state in brown trout Salmo trutta fry? Ecology of Freshwater Fish, 26(3), 462-474. DOI 10

Open access

Pavol Prokop and Ladislav Pekárik

Abstract

Rape is a recurrent adaptive problem of female humans and females of a number of non-human animals. Rape has various physiological and reproductive costs to the victim. The costs of rape are furthermore exaggerated by social rejection and blaming of a victim, particularly by men. The negative perception of raped women by men has received little attention from an evolutionary perspective. Across two independent studies, we investigated whether the risk of sexually transmitted diseases (the STD hypothesis, Hypothesis 1) or paternity uncertainty (the cuckoldry hypothesis, Hypothesis 2) influence the negative perception of raped women by men. Raped women received lower attractiveness score than non-raped women, especially in long-term mate attractiveness score. The perceived attractiveness of raped women was not influenced by the presence of experimentally manipulated STD cues on faces of putative rapists. Women raped by three men received lower attractiveness score than women raped by one man. These results provide stronger support for the cuckoldry hypothesis (Hypothesis 2) than for the STD hypothesis (Hypothesis 1). Single men perceived raped women as more attractive than men in a committed relationship (Hypothesis 3), suggesting that the mating opportunities mediate men’s perception of victims of rape. Overall, our results suggest that the risk of cuckoldry underlie the negative perception of victims of rape by men rather than the fear of disease transmission.

Open access

Yasin Ozdemir, Nesrin Aktepe Tangu, Aysun Ozturk, Mehmet Emin Akcay and Sezai Ercisli

Abstract

Some important physical, chemical and sensory characteristics of raw and processed olives (processed by the same scratched table olive process) were investigated. In the study, six candidate cultivars obtained by cross-breeding and one standard cultivar (‘Domat’) grown together in an olive breeding and observation plot in the Ataturk Central Horticultural Research Institute in Turkey were investigated. Fruit weight and flesh-to-seed ratio of fresh raw olives ranged from 5.18 to 7.65 g and 4.8 to 6.3, respectively. LT011 had the highest fruit weight, whereas LT001 and LE001 had the highest flesh-to-seed ratio. Total phenolic content and antioxidant activity of the produced table olives were estimated between 102 and 141 mg gallic acid equivalents per 100 g−1fresh weight, and 13.4 and 14.9 µmol Trolox 100 g−1, respectively. Fruits of LT001 had higher appearance, taste, bitterness and general appreciation scores than the others. LT001 showed a lesser loss of oleuropein absorbance and antioxidant activity than the others during processing. The results of this study revealed that LE001, LT001 and LT011 had superior characteristics for the production of scratched green table olives.

Open access

Agnieszka Dąbrowska

Abstract

In the years 2004-2006, 37 F. rubra L. ecotypes and 35 F. nigrescens Lam. ecotypes were evaluated for their main lawn traits: the general aspect of the plant, slow re-growth, overwintering, winter greenness, leaf fineness and disease resistance. The lawn properties of the ecotypes were assessed with the use of the IHAR 9-grade scale of the visual quality classification system. The study individuals were compared with the model varieties: F. rubra ‘Areta’ and F. nigrescens ‘Nimba’. The ecotypes originated from natural localities in the Lublin region. The experiment was conducted using the method of randomly chosen blocks in three repetitions. One repetition contained six plants of one ecotype grown at a distance of 75 × 30 cm. The aim of the study was to analyze the variability of lawn traits in the examined F. rubra and F. nigrescens ecotypes and to estimate the suitability of the selected material for the breeding of new lawn varieties. Analyses indicated that most of the ecotypes that grow in natural localities in the Lublin region display high-grade lawn traits. This confirms the great suitability of the wild plants for further breeding. Ecotypes of both species obtained high scores comparable with model varieties for their disease resistance, leaf fineness and winter greenness, and also for general aspect and slow re-growth.

Open access

Lyudmil Angelov and Boyan Stalev

Study on the quality of wines produced from ‘Syrah’ and ‘Tempranillo’ cultivars planted in two microregions in Southern Bulgaria

In the period 2006-2008 a comparative study was carried out on the ‘Tempranillo’, ‘Syrah 99’ and ‘Syrah 100’ cultivars, grown in two microregions in Southern Bulgaria - Brestnik and Pesnopoy. The soils in the region of Pesnopoy are of a better mechanical and chemical composition, which preconditions the formation of relatively high yields of good quality grapes. The ‘Tempranillo’ cultivar was highly productive in both microregions, however the quality of the wines was lower, compared to the ‘Syrah’ cultivar. They were poorer both in the content of extract and in fruit aroma. ‘Syrah 99’ from Brestnik and ‘Syrah 100’ clones from Pesnopoy do not differ significantly in productivity, but the wines of ‘Syrah 100’ from the Pesnopoy region were more intense in colour and their aroma was strong, full-bodied and lasting with dominating floral (violet) and forest fruit nuances. Tasting results showed high scores, which is evidence that the young wines have potential and contain the ingredients and components necessary to develop further into top quality red wines.

Open access

Dorota Szopińska and Barbara Politycka

-173. ISTA, 2012. International Rules for Seed Testing. International Seed Testing Association, Bassersdorf, Switzerland. J oosen R.V., K odde J., W illems L.A., L igterink W., V an der P las L.H., H ilhorst H.W., 2010. GERMINATOR: a software package for high-throughput scoring and curve fitting of Arabidopsis seed germination. Plant J. 62(1): 148-159. K aneko M., I toh H., U eguchi -T anaka M., A shikari M., M atsuoka M., 2002. The α -amylase induction in endosperm during rice seed germination is caused by gibberellin synthesized in epithelium

Open access

Mbongowo J Mbuh and Neil Vruno

optimally? Wildlife Biology, 12(2), 201-209. https://doi.org/10.2981/0909-6396(2006)12[201:UOOEAF]2.0.CO;2 Hortal, J., Lobo, J. M., & Martín-piera, F. (2001). Forecasting insect species richness scores in poorly surveyed territories: the case of the Portuguese dung beetles (Col. Scarabaeinae). Biodiversity & Conservation, 10(8), 1343-1367. https://doi.org/10.1023/A:1016624500023 Hunter, R. D., Fisher, R. N., & Crooks, K. R. (2003). Landscape-level connectivity in coastal southern California, USA, as assessed through carnivore habitat

Open access

Marko R. Cincović, Jože Starič, Branislava Belić, Jožica Ježek and Ivana Lakić

. Zbornik 26. Savetovanja veterinara Srbije, 2015a BELIĆ B., CINCOVIĆ M.R., DOŠENOVIĆ M., STOJANOVIĆ D., KOVAČEVIĆ Z.: The effects of different anticoagulants on biochemical parameters in blood of dairy cows. Veterinarski glasnik, 69 (1-2): 13-20, 2015. BELIĆ B., CINCOVIĆ M.R., STEVANČEVIĆ M., TOHOLJ B., POPOVIĆ-VRANJEŠ A., PEJANOVIĆ R., DAVIDOV I., POTKONJAK A., STANČIĆ I.: Influence of metabolic profile in early lactation and welfare score of farm to milk production and service period in dairy cow. Contemporary agroculture, 64(1-2):65-71,2015. BRAUN JP