Effect of Duration and Substance of Priming White Teosinte Hybrid Seed on Improves Viability, Seedling Vigor, Growth and Forage Productivity A-	Effect of Priming and Its Duration on Viability and Seedling Vigor

Shahein, Alaa M. E. A.; El-Gaafarey, T. G.

doi:10.21608/jpp.2022.115596.1083

Effect of Duration and Substance of Priming White Teosinte Hybrid Seed on Improves Viability, Seedling Vigor, Growth and Forage Productivity A- Effect of Priming and Its Duration on Viability and Seedling Vigor

Document Type : Original Article

Authors

¹ Seed Technology Dept. Field Crops Res. Inst., Agric. Res. Center, Giza, Egypt.

² Forage Crops Dept., Field Crops Res. Inst., Agric. Res. Center, Giza, Egypt.

10.21608/jpp.2022.115596.1083

Abstract

Present study was conducted at Laboratory conditions of Seed Technology Research Department at Sakha, Field Crops Research Institute, ARC, Giza during 2019 season. The purpose of the research was to study the effect of priming duration (6, 8 and 10 hours) and seed priming (hydro-priming, 50, 75 and 100 mgL^-1 of salicylic acid, 1, 2 and 3 % of KH₂PO₄and 1, 2 and 3 % of ZnSO₄ ) and dry seed on improving germination of seed and seedling vigor of white hybrid teosinte. Results indicated that six hours priming duration gave the highest germination percentage, seedling vigor, speed germination index and seedling vigor index. Seed treatment with 2 % of KH₂PO₄was the best treatment followed by salicylic acid 100 mgL^-1 and 3 % of ZnSO₄ recorded the highest seed germination%, seedling vigor, speed germination index and seedling vigor index. Hydro-priming produced the higher values of most traits such as plumule and radical length, seedling dry weight, speed germination index and the lowest in electrical conductivity. The interaction effect was significantly where six hours duration and seed priming with 2% KH₂PO_4, 3% of ZnSO₄ and 100 mgL^-1 of salicylic acid were the highest germination% and seedling vigor and insignificant with hydro-priming. The lowest values of EC produced by 6 hours with 2% of KH₂PO₄ followed by 3% of ZnSO₄and hydro-priming. We can conclude that hydro-priming for 6 hours before sowing of white hybrid teosinte increased germinationpercentage to reach 80% compared to dry seed, also seedling vigor characters.

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