Evaluation of Some Sugar Beet Varieties under Water Salinity Stress in New Reclaimed Land

Abstract

In line with sustainable agriculture that depends on modern methods and new sources of nontraditional irrigation, a field experiment was conducted at a privet farm behind Cairo-Alexandria Desert Road, Giza, Egypt during two seasons to evaluate five sugar beet varieties under water salinity stress condition. The present work included 15 treatments; represent five sugar beet varieties: viz. Multi-germs (Amina, Farida, and Faten) and Mono-germs (Unners and Sharleston), in combinations with two salinity treatments (Magic-Sal (13% humic acid + 20% carboxylic acid) and Sal-Wax (50% carboxylic acid) components) compared to control application. Results indicated that salinity treatments help in early stages to increase the emergency percentage of sugar beet varieties under high salinity water stress. As compared to control treatment, salinity treatments significantly increase proline accumulation, leaf relative water content (LRWC %),and root yield, but, it caused a reduction in quality parameters (sucrose, purity, and extractable sugar percentages) in both seasons. On the other hand, variety (Amina) overpassed the other varieties under salinity water stress with respect to germination ratio, proline content, LRWC%,and root yield (ton/fed) in both seasons. While, Sharelston variety surpassed significantly the other studied varieties with respect to sucrose, purity, and extractable sugar percentage (ES%) in both seasons.The distribution of stomata density of leaf increased as salinity water stress level increased. Results also showed that five sugar beet varieties under two salinity treatments (Magic-Sal or Sal-Wax) had positive effects and increased stomata area, but stomata density and its index as well as stomata closure% decreased compared with nonuse.

Stomatal and epidermal characteristics of Zingiberaceae in Serang District, Banten, Indonesia

“…To prevent water loss during the photosynthetic process, the plant responds by reducing the number of stomata and stomatal pores to be smaller (Royer 2001). Plant adaptation to salinity and drought can be increased with high density and small stomata size so that the regulation of water transport and plant transpiration will be more efficient (El-Kady et al 2021). Plants with lower stomatal density and smaller stomatal size have the ability to maintain a high rate of gas exchange under high-temperature stress by opening stomatal pores (Caine et al 2019).…”

Salinity Tolerant Indices Based on Yield Performance of Some Sugar Beet Varieties as Treated by Potassium Silicate to Mitigate Saline Soil Stress

“…The variations recorded in the investigated sugar beet varieties may be due to variations in their genetic composition and responses to environmental factors. El-Kady et al (2021) and Abd El-Aal et al (2010) also noted variations in root characteristics and discovered highly significant variances in sugar beet root weight between varieties. The results (Table 5)…”

“…The evaluation of the salinity tolerance of sugar beet was accomplished using complicated indices such as the salinity sensitivity index (SSI), yield stability index (YSI), and salinity tolerance Index (SRI), which usually lasts for two years in cropland. The indices are more effective for selecting better sugar beet varieties concerning tolerance because a single index or comprehensive analysis of different traits has shortcomings in identifying saline tolerance (Wenbo et al, 2023, Abu-Ellail and El-Mansoub 2020, El-Kady et al, 2021and Ghoulam et al, 2002. The objectives of the present research were to evaluate the performance of five sugar beet varieties and their response to different levels of spryer application with potassium silicate on growth, yield, and quality of sugar beet in saline soil conditions, as well as to determine the efficiency of tolerance indices to identify saline-tolerant sugar beet varieties.…”