The effect of sowing date, rate and methods on daily stem growth of buckwheat during the growing period

Abstract

The effects of sowing dates (June 20, July 1, July 10), seeding rates (1.0-3.0 mln seeds ha⁻¹), and methods on daily stem growth of buckwheat (Fagopyrum esculentum) cv. 'Ilishevskaya' grown as a secondary crop were studied on typical long-term irrigated sierozem soils of the Tashkent region. Peak growth was recorded during the budding-flowering stage (2.40-2.80 cm day⁻¹). Increased seeding rate enhanced growth from 1.74 to 1.95 cm day⁻¹ due to stem elongation caused by light deficiency. Late sowing (July 10) reduced growth from 1.69 to 1.31 cm day⁻¹ during the flowering-pod formation period.