Five alfalfa (Medicago sativa L) cultivars from different areas of Iran were evaluated for oxidative markers under salinity conditions. Plants were grown in hydroponic condition by Hoagland nutrient solution containing different amounts of NaCl (control, 50 and 100 mM). Relative growth rate, membrane stability, lipid peroxidation, proline, hydrogen peroxide and relative water contents were dete...

Leaf area measurements in the field are very difficult to determine yield. Use of mobile application has come fore due its practical use and ease transportation. Therefore, this study, accuracy were tested by determining leaf with an automatic meter a called 'PETIOLE'. The alfalfa plants (Medicago sativa L. cv Nimet) grown field, measured 'PETIOLE' laboratory conditions automatically measuremen...

Flavonoid signals from alfalfa (Medicago sativa L.) seed and root exudates induce transcription of nodulation (nod) genes in Rhizobium meliloti. The flavone luteolin previously was isolated from alfalfa seeds by other workers and identified as the first nod gene inducer for R. meliloti. Our recent study of 'Moapa 69' alfalfa root exudates found no luteolin but did identify three other nod gene ...

Abstract Alfalfa ( Medicago sativa ) is one of several legumes that affected by Aphanomyces root rot (ARR) caused euteiches . Symptoms ARR on alfalfa seedlings include a yellow‐grey discolouration roots, rotting and loss lateral stunted growth, chlorotic foliage reduction nitrogen‐producing nodules roots. Infection can also occur adult plants leading to roots nodules. At the seedling stage, dec...

Combined stress from water and temperature is considered an effective approach for improving the cold resistance of alfalfa (Medicago sativa L.). However, relationships among irrigation depth, root morphology architecture, remain unclear. In this study, we investigated effects drip at soil surface (Deep-0), 20 cm depth (Deep-20), 40 (Deep-40) on architecture alfalfa. The Deep-0 treatment had hi...

The biosynthesis of monolignols can potentially occur via two parallel pathways involving free acids or their coenzyme A (CoA) esters. Caffeic acid 3-O-methyltransferase (COMT) and caffeoyl CoA 3-O-methyltransferase (CCOMT) catalyze functionally identical reactions in these two pathways, resulting in the formation of mono- or dimethoxylated lignin precursors. The activities of the two enzymes i...

To understand the adaptability of alfalfa (Medicago sativa L.) to environmental stresses, we analyzed the activity of several antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT), in alfalfa shoots and roots subjected to salt and drought stresses during germination. The germination rate of six alfalfa cultivars was comparati...