Seed Priming Boost Adaptation in Pea Plants under Drought Stress

Abstract

In the present investigation, we study the effect of Bacillus thuringiensis MH161336 (106–8 CFU/cm3), silicon (25 mL L−1), and carrot extract (75 mL L−1) as seed primers, individually or in combination, on morphological, physio-biochemical and yield components of drought-stressed pea plants (Master B) during 2019/2020 and 2020/2021 seasons. Our results indicated that drought causes a remarkable reduction in plant height, leaf area, number of leaves per plant, and number of flowers per plant in stressed pea plants during two seasons. Likewise, number of pods, pod length, seeds weight of 10 dried plants, and dry weight of 100 seeds were decreased significantly in drought-stressed pea plants. Nevertheless, seed priming with the individual treatments or in combination boosted the morphological, physio-biochemical, and yield characters of pea plants. The best results were obtained with the Bacillus thuringiensis + carrot extract treatment, which led to a remarkable increase in the number of leaves per plant, leaf area, plant height, and number of flowers per plant in stressed pea plants in both seasons. Moreover, pod length, number of seeds per pod, seeds weight of 10 dried plants, and dry weight of 100 seeds were significantly increased as well. Bacillus thuringiensis + carrot extract treatment led to improved biochemical and physiological characters, such as relative water content, chlorophyll a, chlorophyll b, regulated the up-regulation of antioxidant enzymes, increased seed yield, and decreased lipid peroxidation and reactive oxygen species, mainly superoxide and hydrogen peroxide, in drought-stressed pea plants.

Improving Yield Components and Desirable Eating Quality of Two Wheat Genotypes Using Si and NanoSi Particles under Heat Stress

“…This might be attributed to the improvement of carbohydrate production by silicon treatment [ 129 ]. The chemical composition of wheat straw varied significantly with the variety and stress conditions [ 130 , 131 , 132 ].…”

Physiological Studies and Ultrastructure of Vigna sinensis L. and Helianthus annuus L. under Varying Levels of Nitrogen Supply

“…It is an important commodity in West Africa. It belongs to Fabaceae family, which contain many important crops such as the faba bean [ 2 , 3 ], soybean [ 4 , 5 ], and pea [ 6 , 7 , 8 ]. The cowpea is an important source of protein, vitamins, and income for humans [ 9 ].…”

Priming With Silicon: A Review of a Promising Tool to Improve Micronutrient Deficiency Symptoms

“…The knowledge on the Si effect on the mitigation of biotic and abiotic stresses and the Si reduction in soils make Si fertilizers application a relevant agricultural practice. Generally, two aspects of Si effects are considered: (1) The usefulness level of Si application varies in different plant species: beneficial effects are usually more obvious in plants that accumulate high levels of Si in their shoots (see an example in Gonzalo et al, 2013 ); and (2) The positive and multilateral effect of Si is more observable when the plant is under stress or in the recovering process from this stress (i.e., Bityutskii et al, 2014 ; Carrasco-Gil et al, 2018 ; Nikolic et al, 2019 ; Hernandez-Apaolaza et al, 2020 ; Thorne et al, 2020 ; Arafa et al, 2021 ; Martín-Esquinas and Hernández-Apaolaza, 2021 ).…”