Variability of yield traits and disease resistance in winter triticale genetic resources accessions

Abstract

A b s t r a c tA systematic gathering of winter triticale accessions was started in Poland in 1982 by the Institute of Genetics, Breeding and Seed Science at the Agricultural University in Lublin (at present its name is: Institute of Genetics, Breeding and Plant Biotechnology at the University of Life Sciences in Lublin). First, breeding lines obtained in local breeding stations were gathered. Next, accessions were imported from the following world gene banks: Beltsville, Gatersleben, and VIR. Interesting hybrid materials obtained in research centers were also included in the collection. Now, the collection includes 2349 accessions (1329 of winter triticale and 1020 of spring triticale). The evaluation is conducted in a 4-year cycle of field experiments using the same methods. The gathered accessions represent a large range of variability of both morphological and commercial traits. The large differentiation of accessions especially concerns traits such as: plant height, number and weight of grains per spike, protein content in grain, field resistance to powdery mildew, brown rust and leaf and spike diseases.

The Interphase Period of Shoots – Earing of Spring Triticale

“…Тритикале с коротким периодом от всходов до колошения обладают высокой фертильностью колоса [11]. Раннеспелые ПРА имеют повышенное содержание белка за счет морщинистости зерна [12]. Длительная вегетация растений ПРА имеет свое преимущество для применения сортов на корм.…”

Development of septoria leaf blotch on winter triticale varieties in the conditions of Forest-steppe of Ukraine

“…Відзначається, що поряд з підвищенням уро-жайності та якості зерна особливо у сортів тритикале, створених останнім часом, відбувається зниження польової стійкості проти збудників грибних хвороб, домінуючою серед яких є септоріоз листя [5].…”

Genetic Resources of Triticale in the Polish Gene Bank

“…An understanding of the variability of the large number of accessions in a collection gathered over the years can provide better insight for selecting parents in a breeding programme in terms of adaptation and productivity traits (Cui et al, 2001;Mohammadi and Prasanna, 2003;Jaradat et al, DOI: 10.1515DOI: 10. /plass-2018 2004, Ukalska andKociuba, 2013, Kociuba andKramek, 2014). Progress in the breeding of new cultivars depends mainly on the choice of appropriate forms for crossbreeding.…”

“…Progress in the breeding of new cultivars depends mainly on the choice of appropriate forms for crossbreeding. Consequently, it is necessary to collect and protect both new and old accessions for plant breeding and research as valuable sources of genetic variability for important useful traits (Banaszak and Marciniak, 2002;Kociuba, 2007Kociuba, , 2010Kociuba et al, 2010;Kociuba and Kramek, 2014).…”