Year 2017, Volume 2, Issue 1
| Year : | 2017 |
| Volume : | 2 |
| Issue : | 1 |
| Authors : | Sergej V. GONCHAROV |
| Title : | CEREALS SEED LIFECYCLE |
| Abstract : | Cereals seed lifecycle is considered as duration of a variety commercial use, or period of having margin from variety market introduction till its withdrawal from the market. In most of cases, it coincides with average period of variety listing. But available National Registers includes list of approved varieties, and don’t keep tracks about withdrawal ones. The article goal was to check author's methodology of calculation of actual cereals seed lifecycle. National Registers of Commonwe-alth of Independent State (CIS) countries (Belarus, Kazakhstan, Russia, Ukraine) compare to German Bundesortenamt were used as data base. It was assumed thatnumber of varieties, been listing within five years period, is constant; therefore share of listed varieties in older groups shows probability of a variety listing within any group. It was found, that winter wheat seed commercialization period lasts about 24 years in Kazakhstan, 14 in Russia, 13 in Germany, 12in Ukraine and 9in Belarus. Similar trends are calculated in other cereals (spring oat, spring wheat, spring barley, and winter rye). The higher yields are, the shorter variety lifecycle, the better seed exchange rate (certified seeds share), and even return of breeding investments. Seed lifecycle is under influence of such factors as average crop multiplication rate, seeding rate, crop margin, yields, operational risks, acreage, etc. Markets of high marginal crops with shorter seed lifecycle are attractive for international seed companies expansion. |
| For citation : | Goncharov, S. V. (2017). Cereals seed lifecycle. AGROFOR International Journal, Volume 2. Issue No. 1. pp. 125-131. DOI: 10.7251/AGRENG1701125G |
| Keywords : | CIS, National Register, Cereals, listing, Seed lifecycle |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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