Tolerance of forage pea cultivars to salinity and drought stress during germination and seedling growth

Abstract

The germination and seedling characteristics of six forage pea cultivars were investigated under different levels of salinity (0, 5, 10, 15, and 20 dS/m) and drought (0,-2, and-4 bar) stresses. All characteristics of germination and seedling growth varied by cultivar, salinity and drought levels, and their interactions. With high seedling lengths overall, Özkaynak, Ulubatlı, and Töre cultivars demonstrated low reduction rates in seedling length when salinity reached 15 dS/m, whereas the Taşkent cultivar's reduction rate increased considerably at that level of salinity, as did Ürünlü and Gölyazı cultivars. Meanwhile, the Gölyazı cultivar had high fresh and dry weights, despite high reduction rates in fresh weight, similar to the Taşkent cultivar. Though the Ulubatlı cultivar had the shortest seedlings, they exhibited a low reduction rate in seedling length at-2 bar of drought stress, as did Töre and Özkaynak cultivars. At that level of drought stress, those cultivars also indicated low reduction rates in fresh weight. Altogether, the Töre cultivar best tolerated salinity and drought conditions, the Özkaynak cultivar showed promise as well, whereas Taşkent and Gölyazı cultivars were the most sensitive to the conditions.

Using Machine Learning Algorithms to Investigate the Impact of Temperature Treatment and Salt Stress on Four Forage Peas (Pisum sativum var. arvense L.)

“…According to the results, it was predicted that ML algorithms at 9 degrees or less according to the SL parameter, 1 degree or less according to the RL parameter, 5 degrees or less according to the FW parameter, and 1 degree or less according to the DW parameter may result in the failure of fodder pea plants to germinate. When the temperature drops below the ideal range for germination, fodder pea plants either do not germinate at all or have a very poor germination rate [3,45].…”

“…Simultaneously, it has a detrimental impact on the growth and development of plants, thereby impairing their output [2]. Plants are susceptible to salinity at any stage of their growth cycle, beginning from the point when the seeds are deposited into the soil [3,4]. Nevertheless, plants exhibit heightened sensitivity, particularly throughout the stages of germination and seedling growth [5,6].…”