Individual and Interactive Effects of Multiple Abiotic Stress Treatments on Early-Season Growth and Development of Two Brassica Species

Potential global climate change-related impacts on crop production have emerged as a major research priority and societal concern during the past decade. Future changes, natural human-induced, projected in implications for regional production. The simultaneous occurrence of several abiotic stresses instead stress conditions is most detrimental to crops, this has been long known by farmers breeders. green leafy vegetables Brassicaceae family especially gained attention due their many health benefits. However, little information available about stress’s effects Brassica vegetables’ growth development. An experiment was conducted two species: B. oleracea L. var. acephala WINTERBOR F1 (hybrid kale) juncea GREEN WAVE OG (mustard greens). Seven treatments were imposed brassica species soil–plant–atmosphere–research (SPAR) units under optimum moisture nutrient conditions, including control treatment (optimal temperature UV-B at ambient CO2 levels), six where elevated: CO2, UV-B, (T), CO2+UV-B, CO2+T, CO2+UV-B+T. Above- below-ground parameters assessed 26 d after sowing. Several shoot root morphological developmental traits evaluated all treatments. measured development declined significantly individual interaction these both species, except elevated treatment. All showed maximum reductions high IV-B levels species. Leaf area 78% 72% reductions, stem dry weight decreased 73% 81% kale mustard, respectively, levels. increased concentrations alleviated some deleterious stresses. results our current study will improve understanding adverse environmental early-season