Growth phases of autumn rapeseed effect of seedling thickness

Tashkent State Agrarian University, University str., 2, 100140, Tashkent, Uzbekistan

^* Corresponding author: z.yuldasheva@tdau.uz

Abstract

Rapeseed is a highly valuable livestock feed as its seeds contain a higher percentage of oil and protein compared to other agricultural crops such as pea, wheat, and barley flour. Rapeseed seeds are rich in protein and oil, with percentages ranging from 21% to 33% and 42% to 48%, respectively. Rapeseed flour now has a protein content that is 1.9 to 4.0 times higher than that of wheat, barley, and pea flour. Rapeseed also produces 1 ton of seeds per hectare along with 0.41 to 0.44 tons of oil and roughly 0.2 tons of protein. With the introduction of contemporary cultivars that contain low amounts of erucic acid and glucosinolates in both the oil and seed tissues, the importance of rapeseed as a livestock feed has been further increased. Its seed yield is also high, with one hectare producing one ton of seeds, 0.41-0.44 tons of oil, and 0.2 tons of protein. In this research, scientific research experiments were carried out in the fields of experimental scientific research and educational experimental farm of Tashkent State Agrarian University during 2020-2021. The results showed that during the flowering phase, the development of the Yasna control variety slowed down and was delayed by 1-3 days compared to the Sarmat and Loris varieties. In the flowering phase, differences in varieties of rape began to be noticed.