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Results of competitive variety testing of new squash varieties in Uzbekistan

https://doi.org/10.18619/2072-9146-2021-6-30-35

Abstract

The aim of the research is to breed short climbing, early maturing, high-yielding varieties of squash in the natural and climatic zone of Uzbekistan.
Methods. The samples of squash 0044SQ (Holland) and BT+KB-001 (Turkey) were taken from the gene pool of the Research Institute of Plant Industry (Uzbekistan) in 2012 for breeding work. In 2013, squash samples were studied in the nursery of the source material, where they were evaluated for biological and economically valuable traits. Individual selection of plants was carried out. In further breeding work (2014-2016 and 2018), the lines LZ-2513 and LH-1916 were distinguished.
Results. The method of analytical breeding created short-climbing, early maturing, high-yielding of squash lines LZ-2513 and LH-1916. Line LZ-2513 has rounded fruits of light green color. The LH-1916 variety has elongated, dark green fruits. Competitive variety trials of new lines were conducted in 2019-2020. Unumdor variety zoned in the republic served as a standard. It was found that from sprouting to maturity of the fruit in the line LZ-2513 is 44 days, in the line LH-1916 – 45 days. High marketable yield was recorded for squash line LZ-2513 – 18.3 tons/ha (122% of the standard); in line LH-1916 marketable yield was 16.4 tons/ha (112.4% of the standard). This year we organized the primary seed production of squash lines LZ-2513 and LH-1916 for multiplication.
Conclusion. Promising for cultivation in conditions of Uzbekistan squash line LZ-2513 Orbita (NAP 20200087) and line LH-1916 Viridi (NAP 20200088) were submitted to the Intellectual Property Agency under the Ministry of Justice of the Republic of Uzbekistan to be patented.

About the Authors

Sh. R. Aripova
Research Institute Vegetable, melon crops and potato
Uzbekistan

Shakhnoza R. Aripova – Doctoral student, Junior Researcher of the Laboratory of Vegetable and melon crops breeding, Corresponding Author

Keles str., Tashkent district, Tashkent region, 111106



S. I. Dusmuratova
Research Institute Vegetable, melon crops and potato
Uzbekistan

Saodat I. Dusmuratova – Doc. Sci. (Agriculture), рrofessor

Keles str., Tashkent district, Tashkent region, 111106



R. A. Khakimov
Research Institute Vegetable, melon crops and potato; State Unitary Enterprise "Center for the Development of Seed Growing" under the Ministry
Uzbekistan

Rafikjon A. Khakimov – Cand. Sci. (Agriculture), Senior Researcher, deputy director 

Keles str., Tashkent district, Tashkent region, 111106



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Review

For citations:


Aripova Sh.R., Dusmuratova S.I., Khakimov R.A. Results of competitive variety testing of new squash varieties in Uzbekistan. Vegetable crops of Russia. 2021;(6):30-35. (In Russ.) https://doi.org/10.18619/2072-9146-2021-6-30-35

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ISSN 2072-9146 (Print)
ISSN 2618-7132 (Online)