Effect of age of seedlings and planting geometry on yield attributes and yield of rice (Oryza sativa L.)

Abstract

The present investigation entitled was conducted at Agronomy Research Farm, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) during Kharif season of 2019. The experiment was laid out in Split Plot Design with three replications keeping three age of seedlings viz., three weeks old seedlings, four weeks old seedlings and five weeks old seedlings in main plots and four planting geometries 20 cm  10 cm, 25 cm  10 cm, 20 cm  15 cm and 20 cm  15 cm in sub plots. Healthy and bold seeds of rice variety NDR-2064 was sown for nursery and transplanted as per treatment. Result revealed that yield attributes as effective tillers/m2, panicle length and numbers of grains per panicle were significantly superior in paddy transplanted in three weeks old seedlings. Three weeks old seedlings proved significantly superior in terms of grain, straw and biological yield when compared to rest of age of seedling. Planting geometry of 20 cm  10 cm produced significantly more number of tillers/m2 and number of effective tillers, yield attributes and yield of rice. Therefore, three weeks old seedlings with the planting geometry of 20 cm  10 cm was recorded higher yield attributes and yield of rice crop.