scholarly journals The assessment of dispersal potential of the wax cicada Say. (Homoptera: Fulgoroidea: Flatidae) in the agricultural landscape of the Krasnodar Territory vineyards

2021 ◽  
pp. 159-165
Author(s):  
С.В. Кононенко ◽  
Е.Г. Юрченко

Цель исследований заключалась в уточнении перечня кормовых растений восковой (белой, цитрусовой) цикадки ( Metcalfa pruinosa Say.) в агроландшафте виноградников и анализе состояния популяции путем определения гендерной структуры в основных зонах виноградарства Краснодарского края. Исследования проводили в 2015-2020 гг. на промышленных насаждениях винограда, в лесополосах и на другой растительности в агроландшафте виноградников согласно общепринятым методикам. Уточнена гостальная пищевая специализация вредителя, к наиболее заселяемым растениям отнесены Gleditsia triacanthos L., Crataegus laevigata Poir., Rosa majalis Herrm., Prunus spinosa L., Rubus fruticosus L., Prunus armeniaca L., Prunus domestica L., Prunus cerasifera Ehrh., Abutilon theophrasti Medik.; установлено отсутствие сортовых предпочтений M. pruinosa при развитии на растениях винограда. Результаты изучения гендерной структуры популяций M. pruinosa показали преобладание самок над самцами в Анапо-Таманской, Черноморской и Южно-предгорной зонах виноградарства Краснодарского края, что позволяет сделать предположение о том, что потенциал расселения восковой цикадки еще не исчерпан, вид продолжает осваивать данную территорию. The aim of the research was to adjust the list of forage plants of the wax (white, citrus) cicada ( Metcalfa pruinosa Say.) in the agricultural landscape of vineyards and to analyze the population conditions by determining the gender structure in the main viticultural zones of the Krasnodar Territory. The research was carried out in 2015-2020 in industrial grape plantings, forest belts and other vegetation in the agricultural landscape of vineyards according to generally accepted methods. The official nutrition specialization of the pest was adjusted, the most populated plants were Gleditsia triacanthos L., Crataegus laevigata Poir., Rosa majalis Herrm., Prunus spinosa L., Rubus fruticosus L., Prunus armeniaca L., Prunus domestica L., Prunus cerasifera Ehrh., Abutilon theophrasti Medik.; the absence of varietal preferences of M. pruinosa when developing on grape plants was established. Results of the study of the gender structure of M. pruinosa populations showed the predominance of females over males in the Anapa-Taman, Black Sea and South-Piedmont zones of viticulture in the Krasnodar Territory, suggesting the potential for dispersal of the wax cicada has not yet been exhausted, the species continues to develop this territory.

2016 ◽  
Vol 14 (1) ◽  
pp. 81-105 ◽  
Author(s):  
Carmen De la Paz Pérez Olvera ◽  
Mariana Mendoza Aguirre ◽  
Jacqueline Ceja Romero ◽  
Leticia Pacheco

Se presenta la descripción anatómica, de tipo macroscópica y microscópica de la madera de cinco especies de frutales que pertenecen a la familia Rosaceae. Las especies recolectadas fueron: Crataegus mexicana Moc & Sessé ex DC. (tejocote), Pyrus communis L. (pera), Pyrus malus L. (manzana) subfamilia Maloideae, Prunus armeniaca L. (chabacano) y Prunus domestica L. ( ciruela ) subfamilia Prunoideae. La colecta se hizo en el estado de Puebla, en el municipio de San Felipe Teotlalcingo. Se muestreó un ejemplar por especie. Para el estudio macroscópico se usaron muestras de 15 x 7 x 1 cm y para el microscópico se hicieron laminillas fijas de cortes y de material disociado. Se obtuvieron tablillas y cortes de los tres planos de la madera que son el transversal, tangencial y radial.  Alos elementos mensurables se les hizo un análisis estadístico univariado y se clasificaron con base en la media. La madera de las cinco especies presentó características macroscópicas y microscópicas semejantes, aunque hubo diferencias entre las especies de la misma subfamilia y más notables entre las dos subfamilias. El propósito del estudio fue proponer el uso de su madera, ya que generalmente la madera de estos árboles frutales no se aprovecha cuando se derriban una vez que han dejado de ser productivos.


2021 ◽  
Vol 13 (15) ◽  
pp. 8565
Author(s):  
Seyda Cavusoglu ◽  
Nurettin Yilmaz ◽  
Firat Islek ◽  
Onur Tekin ◽  
Halil Ibrahim Sagbas ◽  
...  

Various treatments are carried out in order to extend both the shelf life and storage life of fresh fruit and vegetables after harvest and among them non-toxic for humans, environmentally and economically friendly alternative treatments are gained more importance. In the current study, methyl jasmonate (MeJA), cytokinin, and lavender oil which are eco-friendly and safe for human health were applied on apricot fruit. The treated fruit were stored at 0 °C and 90–95% relative humidity for 25 days and catalase (CAT), superoxide dismutase (SOD), and ascorbate peroxidase (APX) enzyme activities and lipid peroxidation of apricots after treatments were studied. According to the findings obtained from the study, it was observed that 5 ppm cytokinin and 1000 ppm lavender oil treatments of apricot fruit gave better APX and CAT enzyme activity, respectively. In addition, better SOD enzyme activity in fruit was obtained with MeJA+lavender oil treatments. As a result, it can be emphasized that the product quality of apricot fruit is preserved as both the eco-friendly application of MeJA, cytokinin, and lavender oil separately from each other and the treatment of combinations between these compounds activate the enzymatic antioxidant defense systems of apricot fruit after harvest.


Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1341
Author(s):  
Giandomenico Corrado ◽  
Marcello Forlani ◽  
Rosa Rao ◽  
Boris Basile

Apricot (Prunus armeniaca L.) is an economically important tree species globally cultivated in temperate areas. Italy has an ample number of traditional varieties, but numerous landraces are abandoned and at risk of extinction because of increasing urbanization, agricultural intensification, and varietal renewal. In this work, we investigated the morphological and genetic diversity present in an ex-situ collection of 28 neglected varieties belonging to the so-called “Vesuvian apricot”. Our aim was to understand the level of diversity and the possible link between the promotion of specific fruit types (e.g., by public policies) and the intraspecific variation in apricot. The combination of five continuous and seven categorical traits allowed us to phenotypically distinguish the varieties; while fruit quality-related attributes displayed high variation, both apricot size and skin colour were more uniform. The twelve fluorescent-based Simple Sequence Repeats (SSRs) markers identified cultivar-specific molecular profiles and revealed a high molecular diversity, which poorly correlated with that described by the morphological analysis. Our results highlighted the complementary information provided by the two sets of descriptors and that DNA markers are necessary to separate morphologically related apricot landraces. The observed morphological and genetic differences suggest a loss of diversity influenced by maintenance breeding of specific pomological traits (e.g., skin colour and size). Finally, our study provided evidence to recommend complementary strategies to avoid the loss of diversity in apricot. Actions should pivot on both the promotion of easily identified premium products and more inclusive biodiversity-centred on-farm strategies.


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