The effects of irrigation regimes and the planting patterns on yield and yields components of maize (SC 704).

摘要

In order to study the effects of drought stress and the planting patterns on yield and yield components, an experiment was conducted at the 2008 in Mohsen Abad Agriculture station in western Iran. The treatment were three irrigation levels (60, 80 and 100 evaporation (mm) from pan (Class A)) as main plots, four planting patterns (single and double on furrow bank and single and double on bed) as sub-plots arranged as split plot form based on randomized complete block design with four replications. The results showed that the effects of irrigation levels on the most measured traits were significant at 1% probability level. Level of irrigation of 60 mm evaporation (mm) from pan had the highest number of grains per row (14.6 grains), 1000 kernel weight (312.2 g), grain yield (7424 kg.ha.1) and biological yield (16130 kg.ha.1). The highest grain yield (6479 kg.ha.1), biologic yield (13900 kg.ha.1) and harvest index (48.8%) obtained in planting pattern (single row on bed). There hadn't significant difference in 60 and 80 mm treatments. Therefore in deficit water stress conditions, level of 60 mm evaporation from pan were recommended.