Growing varieties sweet corn main period in Karakalpakstan

¹ Nukus State Pedagogical Institute named after Ajinyaz, Nukus, 230105, Uzbekistan
² Samarkand Agroinnovations and Research University, Samarkand, 191200, Uzbekistan
³ “Tashkent Institute of Irrigation and Agricultural Mechanization Engineers” National Research University, Tashkent, 100000, Uzbekistan
⁴ Bukhara State University, Bukhara, 200118, Uzbekistan

^* Corresponding author: s.isaev@tiiame.uz

Abstract

This article investigates the impact of planting the "Zamin" variety and "Megaton F1" hybrid of sweet corn in the moderately saline meadow-alluvial soils of the Republic of Karakalpakstan. The study specifically focuses on the effects of planting these hybrids at different periods—April 20, May 1, and May 10—on various aspects of plant growth, development, vegetable cob productivity, and economic efficiency indicators. The findings indicate that when seeds of the "Zamin" variety and "Megaton F1" hybrid of sweet corn were planted on April 20, remarkable results were observed. The plants exhibited impressive height, ranging from 163.7 cm to 173.3 cm. Additionally, they were characterized by a substantial number of leaves (12.0 to 12.1 pieces) and seeds (3.0 to 3.6 pieces), showcasing robust growth and development. Furthermore, the productivity of these early-planted varieties was noteworthy, with a yield of 10.8 tons per hectare for the "Zamin" variety and 11.8 tons per hectare for the "Megaton F1" hybrid. Importantly, this represented an additional yield of 1.1 to 1.3 tons per hectare compared to the control, highlighting the positive impact of the early planting strategy. These results underscore the significance of the planting period in maximizing the growth, development, and overall productivity of sweet corn varieties in the specific agro-climatic conditions of Karakalpakstan. The study's insights contribute valuable information for local farmers and agricultural practitioners, offering a practical approach to enhancing crop yield and economic efficiency in sweet corn cultivation.