Determination of optimum seed size and quantity of coating materials for monogerm sugar beet seed

Document Type : Scientific - Research

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Sugar Beet Seed Institute – Iran

Abstract

In order to determination of optimum quantity of seed pelleting materials due to sugar beet monogerm seed size. This study was carried out in seed technology department during 1997-1998. Monogerm cultiver 9597 seed lot (300kg) was firstly graded by 7 round sieves and then 7 rectangle sieves graded each bound. Some factors such as germination , monogermity and proportionate seed pelleting materials due to seed size evaluated of categories seven bounds contained 70% of total weight which had hormal seedling carsteristies. All categories nacked seed lots were coated with 1/1, 1/2 and 1/3 ratio of seed weighty pelleting materials composition, respectively. Germination, monogermity and uniformity and some other factors were determined on pelleted seeds. Results showed that the over using seed pelleting material (1/3) had negative effect on germination and uniformity. This results indicated that tooptaind acceptable germination and uniformity in emergence the proportion of seed pelleting material and seed weight should be 1/1 respectively. The results indicated suitable germination and uniformity in emergence created by 1/1 ratio of seed pelleting material and seed weight.

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