Evaluation of New Rice Varieties under Delayed Transplanting on Yield Parameters and Nutrient Uptake in North Coastal Zone, India

S.Srinivas Kumar *

Department of Agronomy, College of Agriculture, Agricultural College, Naira, Srikakulam, AP, India.

A.V. Ramana

Department of Agronomy, College of Agriculture, Agricultural College, Naira, Srikakulam, AP, India.

A. Upendra Rao

Department of Agronomy, College of Agriculture, Agricultural College, Naira, Srikakulam, AP, India.

K.C Nataraja

Department of Agronomy, College of Agriculture, Agricultural College, Naira, Srikakulam, AP, India.

*Author to whom correspondence should be addressed.


Abstract

A field experiment was conducted on sandy loam soil at the college farm of Agricultural College, Naira, Srikakulam to study the yield and yield attributes of old aged seedlings as influenced by different varieties in a split-plot design, comprised of three age of seedlings (30, 45 and 60 days old) assigned to main Plots and eight varieties (V1: MTU-7029, V2: BPT-5204, V3: MTU-1061, V4: MTU-1121, V5:MTU-1223, V6:MTU-1224, V7:MTU-1262 and V8:RGL-2537) were assigned to sub plots. Among the three age of seedlings for transplanting, planting of 30 days seedlings proved superior by recording higher growth parameters and yield structure, yield and economic returns compared to planting of 45 days and 60 days old seedlings. Among the varieties tested, the higher grain yield, straw yield and economic returns was noticed with MTU-1223 (V5) followed by RGL-2537 (V8) and MTU-1224 (V6). The differences in N uptake among the varieties may be attributed to genetic factors, as different rice varieties can have varying abilities to absorb and utilize nitrogen from the soil.

Keywords: Age of seedlings, varieties, yield, nitrogen uptake, economic returns


How to Cite

Kumar, S.Srinivas, A.V. Ramana, A. Upendra Rao, and K.C Nataraja. 2024. “Evaluation of New Rice Varieties under Delayed Transplanting on Yield Parameters and Nutrient Uptake in North Coastal Zone, India”. Journal of Experimental Agriculture International 46 (10):765-72. https://doi.org/10.9734/jeai/2024/v46i103001.