2024, Vol. 7, Special Issue 9

author(s)
Mahima Baranwal, Lalit Kumar Sanodiya, Abhishek Pal, Anoj Singh and Tanishka Sahu

abstract
The research work was conducted at the Agronomy Research Field, United University, Prayagraj (U.P.) during Kharif season from June to December, 2023 to study the effect of spacing and varieties on the growth and yield of Rice (Oryza sativa). The experiment consisted of three spacing treatments viz. 15 x 15 cm, 20 x 20 cm and 25 x 25 cm and for varieties viz. Sonam, Vishnu-Bhog, Kalanamak and Basmati-1718. The experiment was laid out in randomized block design with three replications. The highest plant height (94.01 cm) was recorded T₃ (spacing 15 x 15 cm with Basmati-1718). While Number of tiller/hill (19.27), Plant dry weight (89.26 g/plant), Yield attributes, No. of panicle/hill (274.59), panicle length (32.45 cm), No. of grain/panicle (220.68), and Test weight (24.23 g) was recorded in treatment T₁₂ (Spacing 25 x 25 cm + Basmati-1718) while highest Seed yield (4.20 t/ha), Straw yield (15.19 t/ha) was recorded in treatment T₁₂ (Spacing 25 x 25 cm + Basmati-1718) of rice. The highest economics was computed under treatment T₁₂ (Spacing 25 x 25 cm + Basmati-1718) i.e. cost of cultivation (39598.36 Rs/ha), gross return (133521.63 Rs/ha), net return (93923.27 Rs/ha), highest and B:C ratio (2.32). The lowest plant height (94.01 cm), Number of tiller/hill (13.43), Plant dry weight (74.86 g/plant), Yield attributes, No. of panicle/hill (15.11), panicle length (25.55 cm), No. of grain/panicle (199.23), Test weight (23.27 g), Seed yield (3.85 t/ha), Straw yield (10.81t/ha) rice. The lowest net return was computed under T₁ (Control) and net return (70306.16 Rs/ha), gross return (110704.52 Rs/ha), lowest cost of cultivation (39598.36 Rs/ha) recorded in T₁₀ (B:C ratio) (1.82) Therefore, T₁ (spacing 15 x 15 cm with Sonam Rice) obtaining the highest grain and straw yields of rice.