Introducción. Plantas expuestas a condiciones de estrés alteran su funcionamiento y generan respuestas fisiológicas que afectan desempeño agronómico. En el cultivo Cannabis medicinal, son escasos los trabajos investigación sobre la fisiología planta interacción con factores bióticos. Objetivo. Determinar variables indicadoras en diferentes etapas fenológicas plantas invernadero bajo fitosanitar...

Submerged plants are the pioneer species of eutrophic water remediation, and they important for maintaining health aquatic ecosystem, while light is main limiting factor growth submerged plants. In this study, we measured maximal quantum yields photosystemⅡ(Fv/Fm) rapid curves (RLCs) five dominant macrophytes in situ by using pulse-amplitude modulated fluorometer (Diving-PAM). Results revealed ...

Due to extended inundation, waterlogging and restricted below-ground aeration cause inhibition in plant growth performance. This study examined two different rubber clones, RRIM 600 RRIT 251, for below ground aeration. To evaluate the performance under stress conditions, net photosynthetic rate (PN), maximum quantum yield photosystem II (Fv/Fm) root elongation were observed. has a higher normal...

Red spruce (Picea rubens Sarg.) and black spruce (Picea mariana (Mill.) B.S.P.) are genetically and morphologically similar but ecologically distinct species. We determined intraspecific seed-source and interspecific variation of red spruce and black spruce, from across the near-northern margins of their ranges, for several light-energy processing and freezing-tolerance adaptive traits. Before ...

We studied the contamination level of the acaricides Folbex VA (bromopropylate, BP), Perizin (coumaphos, CM) Apistan (fluvalinate, FV) and Bayvarol (flumethrine, FM) in brood combs, sugar feed, honey and in new beeswax. All samples were analysed by gas chromatography with ECD detection. After one normal acaricide treatment, in autumn, the brood comb wax was contaminated by all these acaraicides...

In this study, the reaction of germination and plantlet growth different chickpea cultivars (Arman, Azad, Binalood and Hashem) in relation to osmotic stress due to polyethylene glycol solution (-2, -4, -6 and -8bar) and control (distilled water) using factorial design in completely randomized with four replications was evaluated. In this study, there was a significant difference between the dif...