Effects of tillage and planting geometry on the performance of maize hybrids

An experiment was conducted during the spring season of 2013 at Rampur, Chitwan, Nepal. The experiment was laid out in a strip plot design with three replications having 12 treatments, and consisted of two tillage treatments: no tillage (NT) and conventional (CT), two genotypes: Rampur Hybrid-2 and RML-32/RML-17, and three planting geometries: D1=75cm× 25cm, D2=70cm× 25cm and D3= 60cm×25cm between rows and between plants, respectively. Higher Normalized Difference Vegetation Index (NDVI) values of 0.747 were recorded in NT over the CT with 0.657. Rampur Hybrid-2 had the lowest value of NDVI with 0.747 and the highest value was found in RML-32/RML-17 with 0.757. Plant height in CT (167.88 cm) was higher than one (167.17 cm) in NT. Similarly, the highest plant height of 169.91cm was recorded in RML-32/RML-17 over 165.14 cm in Rampur Hybrid-2. The highest number of cobs (73,177 /ha) was recorded at G3. A higher number of 27.3 kernels per row in NT was recorded over the 25.8 in CT. RML-32/RML-17 produced the highest test weight of 363.94g over the Rampur Hybrid-2 with 362.17g. Significantly higher grain yield of 9.24t /ha was recorded in planting geometry of D3. The experiments need to be further tested with higher plant population densities in Nepalese hybrids.

Real Time Impact Factor: Pending

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Keywords: Hybrid Maize, Plant Geometry, Tillage


EISSN: 2383-4420


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