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Determination of vegetative and generative characteristics of different cotton varieties under drought stress

Demirel E., Ödemiş B.

Infrastruktura i Ekologia Terenów Wiejskich

2016

nr IV/1

1169--1177

The research was carried out to determine the effect of different irrigation water requirements of different irrigation levels (mm), on the evapotranspiration seed yield (kg da-1) with vegetative and generative properties of two cotton types (drought tolerant, BA 525) and (drought susceptible, Lydia), in the Eastern Mediterranean region (Turkey). Drought or water deficit stress elicits many different phenological responses in plants. The study of vegetative features included the fresh and dry weight of plant (g), leaf area (cm2 ), number of leaves (number plant-1), number of fruit branches (number plant-1), number of bud formation (number plant-1) and number of node (number plant-1).This result indicates that water stress in plants limit the phenological development significantly and the average of all measurements made after flowering has been observed to decrease.

Further Studies On The COLREGs (Collision Regulations)

Demirel E., Bayer D.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2015

Vol. 9, no. 1

17--23

The collision risk is one of the major reasons threaten safety at sea. The Collision Regulations (COLREGs) is the essential international arrangement which regulates the rules of the roads at sea. Being also a legal document, the language of the COLREGs is not so apparent for the end users (navigators) and this cause some misunderstandings and ambiguity. Many discussions on COLREGs have continued since its first submission related to its application. It seems unlikely to make a radical change on COLREGs even on its manner of introduction. So it would be better to improve new manners to ensure the effective use of COLREGs in particular in the field of education and training. It is aimed to review the existing studies on COLREGs and recent improvements in the maritime education, and investigate applicable and reliable solutions to reduce the negative impacts experienced during the application of the COLREGs.