Effects of different dates of transplanting on yield attributes, yields and quality of non-scented varieties of rice (Oryza sativa)

Abstract

A field experiment was conducted during rainy Kharif season 2015 at Rice Research Station, Kaul (Kaithal) of CCS Haryana Agricultural University, Hisar, Haryana to find out the effect of different dates of transplanting on four non scented different duration rice (Oryza sativa) varieties. Results of experiments revealed that early transplanting dates (June 15 and July 05) increase the grain yield (70.60q/ha and 69.49q/ha) and yield contributing traits of non scented rice varieties as compared to late transplanting on July 25 (49.03q/ha). However, the quality characters viz. hulling, milling and head rice recovery were improved in delayed transplanting. Medium duration varieties HKR-128 and HKR-127, being statistically at par, recorded significantly higher yield as compared to mid-early variety HKR-47 and early duration variety HKR-48. The interaction between dates of transplanting and non scented varieties of rice was found significant and reveals that the reduction in grain yield about 30 per cent when delay in transplanting from June 15 to July 25. The extent of reduction in grain yield was less (23%) in early duration variety HKR-48 than mid early duration variety HKR-47 (30%) and medium duration varieties HKR-128 (31%) and HKR-127 (32%) when delayed in transplanting.