Chlorophyll, Carotenoids Pigments and Growth of Three Onion Cultivars as Affected by Saline Water Irrigation

Abstract

Inroduction Onion (Allium cepa L.) is considered among the most important vegetable and food crops in Egypt. It is ranked the third in cultivated areas, after potatoes and tomato and also for production and trade in the world and in Egypt. In spite of the production amounts that covers the national consumption needs, but the demand for exportation nowadays grows continuously. Such as interactions between genotype and environment, epistasis and strong environmental affects make difficult to develope workings to promote salinity tolerance of a number of crops. In addition, to understand studies and the high yielding varieties, optimal cultural practices and its responses to moisture and salt stress would lead to qualitative and quantitative improvements in productivity and quality of bulb and seed (Mangal et al., 1989; Rouamba et al., 2001 and Galdón et at., 2008). Renu & Rashid (2001) noticed that flax plants exhibited enhancement of shoot bud formation after exposure to salt treatment.

Effect of Different Organic Manures Application on the Bioactive Compound and Yield of Taşköprü Garlic (Allium sativum L.) under 50% Drought

“…The amount of photosynthetic pigments of leaves has been estimated as an index for evaluation of the source. Therefore, a reduction in this amount can be considered as nonstomatal impressions in drought stress conditions (Hussein et al, 2018;Kibar, 2020). In this study, chlorophyll (Chl) and carotenoid content obtained from garlic seedling, which was cultivated in different organic manures mixtures, were given in Table 3.…”

“…It is reported that the severity of the damage caused by drought on plants is closely related to the phases of the life cycle of the species. For instance, the drought that occurs at the initial growth phases (where energy consumption at the highest level can be lethal for the plant (Yazgan et al, 2008;Hussein et al, 2018). A most common effect of water deficiency on crops is a reduction in fresh weight which results in declination of both elongation and expansion of leaf (Farooq et al, 2009;Temesgen et al, 2018;Kurt et al, 2020).…”

Mineral Status and Lupine Yield Responses to Ascorbic Acid Spraying and Irrigation by Diluted Sea Water

“…Adverse environmental condition plays an important role in lowering the food production and raised the poverty worldwide [4]. High salinity and drought are common stress conditions that adversely affect plant growth and crop production Hussein and Alva 2014; [5,6,7]. Under these both condition, the ability of plants to uptake water was reduced and this intern quickly causes reductions in growth rate along with cascade of metabolic changes [8,9,10].…”