5 Ergebnisse.

To promote tolerance mechanisms without compromising tuber yield, study of limited irrigation techniques in potato is the most efficient definition of both the timing of water shortage initiation. This implicate a better study of the molecular and physiological mechanisms involved in tuberization and drought tolerance in different genotypes and environments. Another challenge is to define the yield components that are critically affected by wa...

Dormancy is one aspect of tuber physiological age that begins with potato tuber initiation. During dormancy, proteomic and physiological processes do happen but they do not lead to immediate morphological changes. But these processes are relevant for the number of sprouts produced after breaking of the dormancy and for the growth vigour of the seed tuber. This review propose that dormancy phasis is a complex process that depends mainly on gene...

Oxidative stress is a disturbance in the antioxidant balance leading to cellular damage. Reactive oxygen species (ROS) and especially hydrogen peroxide are the major contributor to the onset of oxidative stress in biological systems. Oxidation of cellular lipids, proteins, and DNA by ROS decreases cellular function and increases susceptibility to chronic diseases. Nonetheless, a relationship between reactive oxygen species metabolism and dorma...

Ce travail a pour objectif principal d'explorer la variabilité intra-spécifique pour le rendement et plusieurs autres paramètres et de déterminer des critères de sélection susceptibles d'être utilisés dans des programmes d'amélioration génétique du rendement du pois. Le rendement et ses composantes, les paramètres phénologiques, les caractéristiques de le surface foliaire, les paramètres de croissance ont été étudiés, sur 12 variétés de petit ...

Growth of hot pepper under saline conditions can be best evaluated by the relative growth rate, relative leaf water contents and carotenoids levels. Moreover, under salt stress, reduced pepper plant growth is primarily due to osmotic stress rather than ionic toxicity, because pepper is regarded as Na+ excluder. Furthermore, carotenoid contents can be used to screen hot pepper germplasm for salt tolerance. It is suggested that use of landraces ...