Varietal characterization of different hybrid variety of maize in Lamjung, Nepal

Abstract

Lamjung is one of major maize producing region with limited availability of spring hybrid maize varieties. This research examine the performances of ten different hybrid varieties using Randomized Complete Block Design in spring season. The highest days to emergence of seedlings was in RAMPUR HYBRID-16 (9.67 days) and the lowest days to emergence was in RML145/RL197 (6.67 days). The highest plant germination percentage was in RML145/RL197 and PVAEQH-1 (50%) and the lowest plant germination percentage was in RAMPUR HYBRID-14 (27.22%). The plant height was significantly higher in RAMPUR HYBRID-12 (245.33 cm) followed by RML83/RML146 (136 cm) and lowest in PVAEQH-1(191.80 cm) whereas the leaf area index were significantly higher in RML145/RL197 (4.86). Phenological behavior like days to 50% tasseling (61 days) and silking (67 days) were significantly earlier in PVAEQH-1 and silking tasseling interval lower in RAMPUR HYBRID-14 (4.33 cm). Yield attributing characteristics like cob length higher in RAMPUR HYBRID-10 (19.267cm) and PVAEQH-1 (19.167 cm), cob diameter higher in CML491/CLWQHZN51 (5.148 cm) and RML145/RML2 (5.318 cm), number of rows/cobs was higher in RAMPUR HYBRID-16, CML491/CLWQHZN51, number of kernels/rows higher in CML491/CLWQHZN51, RML83/RML146. Shelling % was higher in RAMPUR HYBRID-10(69.64) and lower in RML83/RML146(57.81). Thousand grain weight were found significantly higher in CAH1511 (250.23 gm) followed by RAMPUR HYBRID-10 (231.77 gm), RML145/RL197(230.17 gm). Grain yield was significantly higher in RML145/RL197 (7.20 mt/ha) followed by RML83/RML146 (7.13 mt/ha), RML145/RML2(6.58mt/ha), PVAEQH-1(6.25mt/ha), RAMPUR HYBRID-10(6.11 mt/ha), CAH1511 (5.76 mt/ha), CML491/CLWQHZN51(5.68mt/ha), RAMPUR HYBRID-16(5.39mt/ha), RAMPUR HYBRID-12 (5.07 mt/ha)and lower in RAMPUR HYBRID-14 (3.95 mt/ha). The results indicated the among ten hybrid varieties RML145/RL197 and RML83/RML146 were high yielding so the farmers of mid hill specially in Lamjung can cultivate these varieties.