COMPARATIVE CHARACTERIZATION OF COMMON WINTER WHEAT (TRITICUM AESTIVUM L.) VARIETIES IN CONDITIONS OF AN INITIAL SEED PRODUCTION

Bogdan Bonchev, Evgeniy Dimitrov

Abstract


The survey was conducted during the period 2011-2017 in IPGR Sadovo and includes 7 vegetation seasons. The object of investigation was cultivars common winter wheat grown in conditions of comparative study of second year progeny. The aim of the studywas competitive study of common winter wheat cultivars and identifying differences of seed yield in the conditions of primary seed production. For evaluating the variants and for establishing the differences between varieties in the trial were used dispersion variance analysis and was studied the influence of factors force of genotype and conditions of enviroment. The results show that common winter wheat cultivars (Triticum aestivum L.) Geya 1, Tsarevets, Boryana, Unak, Diamant and Sadovo 772 show higher seed yield relative to the standard Sadovo 1. A low variation in the average seed yield has been established of cultivar Diamant, other cultivars show high variation over 20% through years. Complex influence of factors genotype and conditions of the environment is higher, followed by single influence of conditions of the environment and the lowest is influence of the genotype, with little error of the variance. Through the analysis of agro-meteorological data for the period of crop vegetation there were registеred significant differences between the years of testing, because the period of investigation is big. The results are based on both complex influence of genotype of studied cultivars and conditions of the environment.


Keywords


comparative study, common winter wheat, initial seed production, seed yield

Full Text:

PDF

References


Dimova, D., E. Marinkov. 1999. Opitno delo i biometriya. Akademichno izdatelstvo na VSI. Plovdiv, 194.

EK. 2000. Reglament (EO) № 824/2000 ot 19 april 2000 g. Vidove primesi v osnovnoto zarno s dobro kachestvo – opredeleniya. Prilozhenie II, 13-15.

Zarkov, B. 2010. Vliyanie na meteorologichnite usloviya i predshestvenitsite varhu dobiva i kachestvoto na zimna obiknovena pshenitsa sort Miryana F.C.S. Izsledvaniya varhu polskite kulturi. Tom VІ-2, 311-316.

Zarkov, B., P. Penchev. 2000. Agro-meteorologichnite usloviya v rayona na Karnobat prez HH vek. Rastenievadni nauki, 37, 10: 832-834.

Naredba № 21 ot 10.12.2007 g. za targoviya na poseven material ot zarneni kulturi na pazar na ES.

Tsenov N., D. Atanasova, T. Gubatov (2013). Genotip h sreda efekti varhu priznatsite na produktivnostta na obiknovena pshenitsa. I. Priroda na vzaimodeystvieto, Nauchni trudove na IZ – Karnobat, vol. 2, 1, 57-70.

Dencic, S., B. Kobiljski, 2010. Current Status and Trends in NS Wheat Breeding Program. UK-Eastern and Southern Europe wheat Workshop, 15-17 June, Novi Sad, Serbia

Gastel A.J.G, Z. Bishaw, B.R. Gregg (2002). Wheat seed production, FAO Plant Production and Protection Series, 30.

http://www.fao.org/3/y4011e/y4011e0v.htm#bm31.

Kulik, D., 1988. Effect of preceding crops fertilizer application and sowing rates on wheat yields, Rostlina Vyroba, 34 (5), 483-490.

Mackay , I.,A. Horwell, J. Garner, J. White, J. McKee, H. Philpott (2011). Reanalyses of the historical series of UK variety trials to quantify the contributions of genetic and environmental factors to trends and variability in yield over time, Theoretical and Applied Genetics,122,1, 225-238.

https://www.ncbi.nlm.nih.gov/pubmed/20835813#

Reeves, T. G., S. Rajaram, M. Van Ginkel, R. Trethowan, H. Braun, K. Cassaday, 1999. New Wheats for a Secure, Sustainable Future. Mexico, D.F. CIMMYT.

SPSS for Windows. Base System User’s Guide. Release 6.0.


Refbacks

  • There are currently no refbacks.


New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016

The contents of this publication do not necessarily reflect the position or opinion of the National Science Fund of the Republic of Bulgaria. The opinions expressed are those of the author(s) only and should not be considered as representative of the National Science Fund’s official position.

https://www.fni.bg/

National Science Fund of Bulgaria