Effect of Planting Ratio and Planting Geometry on Seed Quality Parameters of Drought Tolerant Pre-Released Maize Hybrid (Zea-mays L.)

摘要

An investigation was carried on hybrid seed production in maize during rabi to study the effect of planting ratio and planting geometry on seed quality like germination percentage (%), root length (cm), shoot length (cm), seedling vigor index, electrical conductivity (ds/m). In hybrid seed production the planting ratio of 3 : 1 with 60 cm x 20 cm spacing recorded the higher germination percentage (97.67%). The highest shoot length (10.67 cm) were recorded in planting ratio of 5 : 1 with 70 cm x 20 cmspacing and planting ratio of 5 : 1 with 90 cm x 20 cm spacing recorded the higher root length (22.67 cm) and electrical conductivity (0.63 dS/m). Seed-ling vigor index (3200) were higher in the planting ratio of 4 : 1 with 70 cm x 20 cm spacing as compare to remaining treatments in maize inbreds like female inbred (NEI 92202B) and male inbred (HS-4).