Study on effect of tobacco seed pelleting on germination and seedling emergence

Document Type : Original Article

Authors

1 PhD Student/ Dept. of Agronomy and Plant Breeding, Islamic Azad Univ., Qaemshahr Branch, Qaemshahr, Mazandaran, Iran.

2 Assistant Prof./ Dept. of Agronomy and Plant Breeding, Islamic Azad Univ., Qaemshahr Branch, Qaemshahr, Mazandaran, Iran.

3 Associate Prof./Seed and Plant Certification and Registration research Institute (SPCRI), Karaj, Iran.

4 Assistant Prof./ Dept. of Agronomy and Plant Breeding, Islamic Azad University, Qaemshahr Branch. Qaemshahr, Mazandaran, Iran.

Abstract

In order to Study on effect of pelleting on flue-cured tobacco (Nicotiana tobacco L.)K326 cultivar various seed size germination and seedling emergence,  this research conducted at Tirtash Tobacco Research and Education Center (in Behshahr) in 2014 by employing pan coater pelleting machine based on completely randomized design by four replication. First, seeds were cleaned and then primed by KNO3three percent concentration solution. Consequently, seeds pelletedby a composition of insecticide and fungicidesand a powder containing various materials. Pelleted seeds after drying, by 1, 1.5 and 2 mm round holesieves separated to three seed diameter size and in companion with crud (naked) and pelleted in other country seeds were experiment treatments. Also for evaluating effect of storage duration effect on studied traits, seeds stored for one year in 10centigrade degree. Normal seedlings percent immediately and one year after pelleting andcoefficient of velocity of germination immediately after seeds pelletingby standard germination test and seedling emergence percent in nursery immediately and one year after seeds pelleting were determined.Results showed, two mm diameter pelleted seeds had the lowest normal seedlings percent and seedling emergencepercent in nursery immediately and one year after seeds pelleting and coefficient of velocity of germination immediately after seeds pelleting. Also, the most amounts of this traits belonged to not pelleted seeds and pelleted seeds germination ability and seedling emergence did not significantly decreased after one year after pelleting. Based on this research results pelletted seed with 1.5mm diameter had better germination ability and seedling emergence

Keywords

References

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Iranian Journal of Seed Science and Technology
Volume 6, Issue 2 - Serial Number 12
Autumn and Winter of 2017-18
November 2017
Pages 133-140

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