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Influence of Seed Priming Techniques on Seedling Establishment and Yield of Asparagus Hybrids
* 1 , 2 , 1 , 2
1  Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine
2  Institute of Vegetable and Melon Growing of the National Academy of Agrarian Sciences of Ukraine

Abstract:

Stimulating and increasing of seeds field germination, activating the growth of the root system and increasing productivity is the actually tasks, that can be solved by priming the seeds of Asparagus officinalis L.

The aim of the research was to determine the influence of low-temperature and hydrothermal, succinic acid and microelements solutions treatment on germination energy, seed germination and yield study of asparagus hybrids.

Samples of hybrids Atlas-15 and WB 210-15 were cooled to temperatures of –70 or –196°C with different way and then heated on air at 22ºC or soaked for 24 hours in water, in solutions of microelements according to Murashige&Skoog (1–3 mg/l), in succinic acid (1–3 mg/l).

The use of low-temperature treatments did not affect the seeds germination. Yield study of growing asparagus seedlings obtained from cooled to –70°C seeds showed a higher number of shoots and roots, their weight compared with the control after 120 days cultivation. Freezing of seeds to liquid nitrogen temperatures led to a decrease in all studied parameters.

Treatment the seeds with microelements and succinic acid did not affect on the studied indicators after cultivation. Hydropraiming of seeds and its further cultivation at optimal temperature conditions promoted significantly higher indicators of emergence of asparagus seeds compared to the control values.

It can be concluded that to improve the qualities of asparagus seeds hybrid should used pretreatment at low temperatures (–70°C) or hydropraiming for the day before sowing in soil conditions.

Keywords: priming; asparagus; low temperatures
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