in other to study the effects of salicylic acid on reproductive characters of ‘elberta’ peach (prunus persica l. batsch) tree, an experiment was carried out based on randomized complete blocks design with four replications in commercial orchard, kerman, iran. the application of three concentrations of salicylic acid 0 (control), 1and 2 mm at swollen bud stage were used. results showed that appl...

Abstract Extreme weather including heat waves and drought episodes are expected to increase in intensity duration due climate change. Wheat, being a major crop is under extreme threat these stresses especially at the reproductive stage. This review addresses potential of diverse wheat germplasm (originated from landraces synthetic derivatives) cope with stress flowering Here, important marker‐t...

In the present study, the effects of bilateral eyestalk ablation on molt interval, ovarian development, and hemolymph levels of ecdysteroid and vitellogenin were investigated in the giant freshwater prawn, Macrobrachium rosenbergii in order to examine the roles of the eyestalk hormones. In destalked males and females, ecdysteroid levels increased rapidly, and molt intervals were significantly s...

Damselflies (Odonata: Zygoptera) have a more complex sperm transfer system than other internally ejaculating insects. Males translocate sperm from the internal reproductive organs to the specific sperm vesicles, a small cavity on the body surface, and then transfer them into the female. To examine how the additional steps of sperm transfer contribute to decreases in sperm quality, we assessed s...

Species that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high...

Lobiopa insularis is a newly reported pest of strawberry in Argentina. We investigated characteristics of its biology in the laboratory, including survivorship and reproduction. We also estimated population growth for L. insularis fed ripe strawberry fruits. Lobiopa insularis was not observed ovipositing on strawberry fruits. A higher proportion of egg masses were recorded from a depth of 1 cm ...

Prolactin plays an important role in mediating parental care in birds, but little is known about changes in prolactin levels when animals disrupt their reproductive behaviour during emergency life-history stages. We investigated the variation of prolactin levels with breeding stage, sex, body condition and as a response to a standardized acute stressor in a small short-lived bird, the Eurasian ...