Vol. 11, Issue 7 (2022)

Author(s):
Guguloth Ramesh, Subbalakshmi Lokanadhan, P Kathirvelan and M Elayarajan

Abstract:
Field experiment was conducted during the summer season of 2022 at wetland farms, Tamil Nadu Agricultural University, Coimbatore, to evaluate the performance of various short and medium duration rice varieties under drip irrigation technology. The study was set with randomized block design under drip irrigation scheduled at 100 per cent pan evaporation (PE) and 100 per cent recommended fertilizer dose (RDF) with ten rice varieties viz., five short-duration varieties (CO 54, ADT 53, MDU 6, TPS 5 and CO 51) and five medium-duration varieties (ADT 39, VGD 1, CO 52, TRY 3 and TKM 13). Growth parameters viz., plant height, number of tillers m^-2, dry matter production and yield parameters were also recorded. From the study, among the rice varieties CO 54 (short duration) rice variety recorded significantly higher plant height (115.3 cm), tiller production m^-2 (449 Nos.), dry matter production (12,564 kg ha^-1), number of productive tillers m^-2 (406 Nos.), grain yield (4436 kg ha^-1), and straw yield (6633 kg ha^-1). It also recorded higher water use efficiency (6.69 kg ha^-1 mm^-1).