Seed priming and sulfur effects on soybean cell membrane stability and yield in saline soil

Pesquisa Agropecuária Brasileira

Teymur Khandan Bejandi²  Mohammad Sedghi¹  Raouf Seyed Sharifi¹  Ali Namvar²  Peyman Molaei² 

[1] ,Islamic Azad UniversityArdabil Branch,Iran

关键词: Glycine max;    chlorophyll content;    environmental stress;    injury index;    seedling emergence;    Glycine max;    conteúdo de clorofila;    estresse ambiental;    índice de dano;    emergência de plântulas;   

DOI  :  10.1590/S0100-204X2009000900007

来源: SciELO

【 摘 要 】

The objective of this work was to determine the effects of seed priming and sulfur application on cell membrane characteristics, seedling emergence, chlorophyll content and grain yield of soybean (Glycine max) in saline soil. A complete-block design in 4x3 factorial arrangement with three replicates was used to test four types of seed priming (water, auxin, gibberellin and non-priming) and three levels of sulfate availability (0, 70 and 140 kg ha-1 K2SO4). The soil had a silty loam texture with an electrical conductivity of 3.61 ds m-1, a pH of 8.2 and a saturation percentage of about 46%. Seed priming had significant effects on mean emergence rate (MER), emergence percentage, relative water content (RWC) of leaves, relative chlorophyll content, time of maturity, shoot length and grain yield. The highest values for these variables were observed in the priming treatments, except for the time of maturity. Sulfur application had significant effects on MER, shoot length, RWC, membrane injury index and grain yield. Priming treatments provide greater emergence rates and grain yields and interact sinergicaly with sulfur rates.

【 授权许可】

CC BY   
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