Biostimulant red seaweed (Gracilaria tenuistipitata var. liui) extracts spray improves yield and drought tolerance in soybean

Abstract

Drought has a deleterious impact on the growth, physiology, and yield of various plants, including soybean. Seaweed extracts are rich in various bioactive compounds, including antioxidants, and can be used as biostimulants for improving yield and alleviating the adverse effect of drought stress. The purpose of this study was to evaluate the effect of soybean growth and yield with different concentrations (0.0%, 5.0%, and 10.0% v/v) of water extracts of the red seaweed Gracilaria tenuistipitata var. liui under well-watered (80% of field capacity (FC) and drought (40% of FC)) conditions. Drought stress decreased soybean grain yield by 45.58% compared to well-watered circumstances but increased the water saturation deficit by 37.87%. It also decreased leaf water, chlorophyll content, plant height, and the fresh weight of the leaf, stem, and petiole. Drought stress decreased soybean grain yield by 45.58% compared to well-watered circumstances but increased the water saturation deficit by 37.87%. It also decreased leaf water, chlorophyll content, plant height, and the fresh weight of the leaf, stem, and petiole. Under both drought and well-watered situations, foliar application of seaweed extracts dramatically improved soybean growth and production. Under drought and well-watered situations, 10.0% seaweed extract increased grain yield by 54.87% and 23.97%, respectively in comparison to untreated plants. The results of this study suggest that red seaweed extracts from Gracilaria tenuistipitata var. liui may be used as a biostimulant to improve soybean yield and drought tolerance in the presence of insufficient water. However, the actual mechanisms behind these improvements need to be further investigated in field conditions.

Curd, seed yield and disease resistance of cauliflower are enhanced by oligosaccharides

“…Therefore, AOS’s impact culminated in a remarkable enhancement in seed yield by 56.8% and 64.5% in early and mid-season, respectively, through enhancing plant immunity-related metabolites with reduced MDA, IC 50 , and disease index. Similarly, Mannan et al (2023) reported 54.87% and 23.97% soybean yields under drought and wet conditions by applying 10% seaweed extract.…”

Nutritional and bioactive properties and antioxidant potential of Amaranthus tricolor, A. lividus, A viridis, and A. spinosus leafy vegetables

“…As LVs, WC accessions confirmed high protein. Marginal people and vegetarians in developing countries generally trust amaranth, soybean, and broccoli [ [91] , [92] , [93] , [94] , [95] ] as a basis for protein. The protein of WC amaranth was greatly higher than AT (1.26 %) in earlier investigations [ 9 ].…”

Identification of heterosis and combining ability in the hybrids of male sterile and restorer sorghum [Sorghum bicolor (L.) Moench] lines

“…Sorghum is a major food crop in Africa, India, and parts of China [ 17 ]. Knowledge of genetic variability [ 18 , 19 ], gene action [ 20 ], heritability [ 21 ], stability [ 22 ], heterosis [ 15 , 23 ], and combining ability [ 20 ] are critical for improving yield and yield contributing traits and qualitative traits like nutrients [ 24 ], proteins [ 25 ], β-carotene [ 26 ], ascorbic acids [ 22 ] phytochemicals like polyphenols [ 27 ], flavonoids [ 28 ] and antioxidants [ 24 ] in any crops breeding programs. For example, a higher magnitude of SCA than GCA variance for grain iron and zinc concentrations indicated the importance of non-additive gene action in the improvement of nutritional traits [ 29 ].…”