IDENTIFICATION OF GROUNDNUT (ARACHIS HYPOGAEAL.) CULTIVARS TOLERANT OF SOIL SALINITY

Morphophysiological and yield attributes of groundnut varieties under different salinity stress conditions

“…This result of relative performance agrees with Haque (2006). Plant height number of leaves and pod yield were gradually decreased in groundnut with increasing salinity dose (Singh et al, 2010;Azad et al, 2014.). Table 2 showed that the relative plant height at growth stages is the highest (97.41%) at pod filling stage and the lowest at vegetative (64.50%) stage which followed by flowering (68.43%) and pre-sowing stage (74.25%), respectively.The interaction effects of variety × salinity dose x growth stage on plant height also presented in Table 2, Dacea-1 and Zhingabadam showed rapid decrease with the increase in salinity than Binachinabadam-3.…”

“…Groundnut requires only 350 mm water for completing life cycle (Azadet al, 2014) and thus mostly grown under rain fed condition during November to April-May. Groundnut is moderately sensitive to soil salinity and can tolerate up to 3.4dS/m without affecting yield (Singh et al, 2010). In this context, we need a variety of groundnut that will able to tolerate up to 4.0 to 8.0 dS/m salinity without much affecting yield.…”

Estimate of Peanut Production Function under Irrigated Conditions and Salinity

“…The effects of irrigation at probability level of 5% and salinity, interaction effect of irrigation and salinity, peanut cultivars, interaction effect of irrigation and cultivars, interaction effect of salinity and cultivars, and the combined effect of irrigation, salinity, and peanut cultivars on the number of pods in a plant were significant in 2015 and 2016 at 95% probability level (Table 4). The numbers of pods in 80% water requirement in 2015 and 2016 were 77 and 70, respectively, and at salinity osmotic potential in the root zone, water absorption by root decreased [18]. In this situation, due to the loss of pegs and lack of pod formation as well as global warming and stiffness of soil, the peg is not completely formed.…”

“…In 2016, maximum seed length was 2.8 cm at the salinity level of 3 dS m -1 , which is related to Guil, Jonobi, and Mesri cultivars in 100% water requirement conditions, and Jonobi cultivar in treatment of 80% water requirement (Table 10). It has been reported that salinity, by increasing the osmotic pressure of soil solution, leads to reduced water absorption and decreased cell differentiation, and thus reduced seed length [18].…”

Spectral Remote Sensing of the Responses of Soybean Plants to Environmental Stresses

“…Salinity influences almost every aspect of the physiology and biochemistry of plants (Arida & Das, 2005). High exogenous salt concentrations affect seed germination, water deficit, cause ion imbalance of the cellular ions resulting in ion toxicity and osmotic stress (Yousfi et al, 2007;Singha et al, 2010). As with most cultivated crops, the salinity response of legumes varies greatly and depends on such factors as climatic conditions, soil properties and the stage of growth.…”