The effect of drought stress on peanut seed composition. I. Soluble carbohydrates, tartaric acid, and phenolics

Ross, L.F. and Kvien, C.S. (1989) The effect of drought stress on peanut seed composition. I. Soluble carbohydrates, tartaric acid, and phenolics. Oléagineux, 44 (6). pp. 295-299.

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Abstract

In field trials near Tifton in 1987, groundnuts cv. Early Bunch, Florunner, Starr, Tifton-8, UF 77318, GA T-2465, Sen 55-437 and Sen 73-33 were subjected to 30 d of drought at 20-50, 50-80, 80-110 or 110-140 d after sowing. Cultivar ranking for seed raffinose, stachyose, tartaric acid and total phenolics content were fairly constant across drought treatments but rankings for seed fructose, glucose, sucrose and inositol contents were not. Optimum harvest date for the cultivars studied were 126, 136, 119, 143, 136, 140, 119 and 135 d after sowing, resp. Only 2 cultivars, Tifton-8 and Sen 73-33, exhibited significantly different responses to water stress than the non-stressed control treatment. Seed stachyose and sucrose contents increased in response to water stress irrespective of stress period whereas seed inositol content increased with water stress early in the growing season and decreased with mid-season stress. Seed stachyose and sucrose contents decreased significantly in response to water stress in Tifton-8 whereas seed glucose, fructose and tartaric acid contents decreased

Item Type: Article
Additional Information: SNNigam Collection
Author Affiliation: USDA-ARS, Southern Regional Research Center, New Orleans, LA 70179, USA
Subjects: Crop Improvement
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 15 Jul 2013 10:07
Last Modified: 15 Jul 2013 10:08
URI: http://eprints.icrisat.ac.in/id/eprint/11078

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