The role of seaweed extract on improvement drought tolerance of wheat revealed by osmoprotectants and DNA (cpDNA) markers

Abstract Drought stress is one of the most severe abiotic stresses affecting adversely plant growth, crop production, and various metabolic processes. Using seaweed extract in mitigating water adverse effects highly important for production. The present study discussed physiological role ( Sargassum denticulatum ) improving wheat tolerance to stress. Water (40% field capacity) caused significant decreases growth parameters (shoot height, fresh, dry weights shoot) as well with chlorophyll content starch. Total soluble sugars, free amino acids, proline, phenolic compounds contents increased stressed plants irrigated every three weeks compared control plants. foliar application 2% enhanced all yield more accumulation organic solutes leaves water-stressed These increases correlated total trnL intron psbA-trnH intergenic regions cpDNA were amplified from extracted genomic DNA. results indicated that variation among region was than distinct treatments responsible deficit. Foliar spray seaweeds effective performance by enhancing compatible osmolytes, antioxidant non-coding chloroplast DNA (cpDNA) psbA-tnH a response