Etiolated hypocotyls of the resistant soybean (Glycine max [L.] Merr.) cultivar Harosoy 63 became susceptible to Phytophthora megasperma (Drechs.) f.sp. glycinea (Hildeb.) Kuan and Erwin race 1 after treatment with abscisic acid. Susceptibility was expressed by increases in lesion size and a major decrease in accumulation of the isoflavonoid phytoalexin, glyceollin. In untreated hypocotyls, act...

Berries on field-grown Vitis vinifera cv. Doradillo were treated at different times during stage II with benzothiazole-2-oxyacetic acid or 2-chloroethylphosphonic acid, and measurements were made of their growth and hormone content. The concentration of ethylene was low during stage II and declined as berries ripened. Both 2-chloroethylphosphonic acid and benzothiazole-2-oxyacetic acid caused i...

Being sessile in nature, plants have to withstand various adverse environmental stress conditions including both biotic and abiotic stresses. Comparatively, abiotic stresses such as drought, salinity, high temperature, and cold pose major threat to agriculture by negatively impacting plant growth and yield worldwide. Rice is one of the most widely consumed staple cereals across the globe, the p...

Salinity is one of the main abiotic stresses, and stomatal conductance (gs) an important physiological index in plants that used to measure their responses salt stress, as closure leads lower yields. However, factors affect gs after biochar application saline soil remain unclear. To explore adaptation mechanisms facility vegetables under stress addition biochar, Chinese cabbage was selected for...

The effects of deficit irrigation (DI) and partial rootzone drying (PRD) on the growth and mineral nutrition of citrus rootstock seedlings in the glasshouse were determined, as well as the potential of DI and PRD to trigger root-to-shoot signalling of abscisic acid (ABA) to increase the growth per amount of water used (water use efficiency (WUE)). In the DI study, 3-month-old seedlings of the i...

To study the effect of low molecular weight antioxidants on respiration process, content auxins and abscisic acid, 15-day-old potato (Solanum tuberosum) tubers grown under laboratory conditions were sprayed with 5.8 μM sodium selenite solution or 0.1 mM caffeic acid solution. Control runners treated water. Hypothermia (-2 °C) simulating freezing was created for 2 hours. 21-day-old analyzed. Und...

Increasing shoot branch numbers of Chrysanthemum morifolium Ramat cv. Hangbaiju (Hangbaiju) is crucial for producing high flower yields. Pot experiments were designed to evaluate the effects foliar application 6-benzylaminopurine (6-BA) combined with prohexadione-Ca (Pro-Ca) on yield and quality flowers. Foliar 6-BA Pro-Ca typically increased leaf chlorophyll content decreased soluble sugar pro...

Abstract One of the major issues with pomegranate production in arid and semi-arid climate is white arils fruit. The known plant regulators abscisic jasmonic acids play a variety roles growth reduction abiotic stresses. However, little about their application to improve quality fruit, particularly arils, environments. Herein, experiments, this study, were performed two consecutive seasons 2020 ...

The plant hormone abscisic acid (ABA) plays a major role in seed maturation and germination, as well as in adaptation to abiotic environmental stresses. ABA promotes stomatal closure by rapidly altering ion fluxes in guard cells. Other ABA actions involve modifications of gene expression, and the analysis of ABA-responsive promoters has revealed a diversity of potential cis-acting regulatory el...