Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-03-107-39
DOI: https://dx.doi.org/10.15863/TAS.2022.03.107.39
Language: English
Citation: Nematov, T. E., & Khalikov, B. M. (2022). Changes of fatty oil and protein in seeds of winter rapseed varieties under the influence of sowing dates and norms. ISJ Theoretical & Applied Science, 03 (107), 640-644. Soi: http://s-o-i.org/1.1/TAS-03-107-39 Doi: https://dx.doi.org/10.15863/TAS.2022.03.107.39 |
Pages: 640-644
Published: 30.03.2022
Abstract: The article provides data about three sowing dates (20-25.09; 01-05.10; 10-15.10) and three sowing norms (1.0; 1.5; 2.0 million / hectare per hectare) on the growth, development for the cultivation of winter rapeseed and impact on seed yield and quality of Yasna varieties. In the winter rapeseed varieties, the sowing dates was early, in the 1st variant with the sowing norm of 1.0 million / ha, the seed oil content was 43.1%, in the 2nd variant with the sowing norm of 1.5 million / hectare, the figure was 42.4%, and in the 3rd variant with the sowing norm of 2.0 million / hectare, the sowing rate was 42.3%. When planted in the period was 40.5-40.1-39.8%, respectively. It can be seen that increasing the sowing rate of Yuntai by 500,000 seeds per hectare reduced the amount of oil in the seeds by 0.3-0.7%, while sowing of this variety by 1.5 million units per hectare yielded the highest amount of protein. It was observed that increasing the norm from 1.5 million / units to 500 thousand units per hectare reduced the amount of protein in the seeds by 0.5-0.6%, and reducing it by 500 thousand units by 0.3-0.4%. According to the data obtained in our study on the effect of sowing dates, the delay in sowing date also led to a relative decrease in the amount of oil in rapeseed seeds.
Key words: winter rapeseed, sowing date and norm, yield, quality indicators, oil, protein.
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