Institute of field crops - Chirpan, 6200, Chirpan, Bulgaria
Резюме
The study was carried out during the period 2010-2016 years at the Field Crops
Institute, Chirpan. In the system of IASAS the variety „Tsvetelina” was tested in
2015- 2016. The variety was certified and registered in the catalog of the Republic
of Bulgaria in 2018 (Сеrtificate № 11139 R2/30.04.2018). It was created by method
of radiation mutagenesis. The study presented morphological and biological
characteristics of the variety „Tsvetelina”. Estimated productive potential and fiber
quality than standard varieties and other new Bulgarian varieties in a field trials
and in the system of IASAS.
The survey results identify the new variety „Tsvetelina” as earliness, productivе,
with good technological properties of the fiber. The new variety „Tsvetelina” exceeded
the average standard with more than 3% seed cotton yield and more than
8% fiber yield. The results were higher on the trails inder Chirpan conditions. The
variety exceeded „Avangard-264” by lint percentage. It was smaller in comparison
with „Chirpan-539”. The fiber was strong with high uniformityр maturity and microner.
By fiber length it was behind the average standard.
The variety „Tsvetelina” are suitable for growing under different conditions and
technologies.
Key words: Cotton, Seed cotton yield, Technological properties of the fiber,
Variety „Tsvetelina”
