Abstract
This work was carried out at a private farm in Tokh, Kalubia,Gov., Egypt during the two successive seasons of 2013/14 and 2014/15,using randomized complete block design with three replications to studythe effect of pre-soaking seed cloves and foliar spray of silicon (Si),selenium (Se) concentrations and their combinations on germination,early seedlings growth, marketable and total green yield as well aschemical constituents of garlic planted under high temperatureconditions of late summer (End of August). The results of this studyshowed that planting garlic under high temperature stress lead to drop inboth rate and speed of germination, which reflected on growth and yield.However, soaking seed cloves in 4 mg/L silicon and/or 2 mg/L seleniumsolutions significantly increased in each of percentage, speed andcoefficient velocity of germination as well as seed vigor index comparedwith untreated control. The soaking seed cloves in silicon at 4 mg/L. wasfound to produce more increase in germination index and early seedlingsgrowth compared to selenium at 2 mg/L. The highest values of bulbcharacters, marketable and total green yield, as well as chemicalconstituents were achieved with application both Si and Se together ascombination in a mixture.
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