Spatial and Temporal Arrangement of Hybrid Maize for Assesment of Phenology and Agrometeorological Indices

Suffiya Wani; Raihana Habib Kanth; Tauseef a Bhat; Z Adar; Ummaisa Rehman; Divya Prashar; Aabiro Rashid; Raieesa .; Sumyrah Mukhtar

doi:10.21921/jas.v10i01.12248

Suffiya Wani Deptt. of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Raihana Habib Kanth Dean, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India
Tauseef a Bhat Deptt. of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Z Adar Dryland Agriculture Research Station, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Ummaisa Rehman Deptt. of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Divya Prashar Deptt. of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Aabiro Rashid Deptt. of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Raieesa . Deptt. of Soil science and Agricultural Chemistry, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India
Sumyrah Mukhtar Deptt. of Soil science and Agricultural Chemistry, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Tech. of Kashmir, India

DOI: https://doi.org/10.21921/jas.v10i01.12248

Keywords: Agrometeorological indices, Growing degree days, Maize, Phenology, Yield

Abstract

A field trial was conducted during the Kharif season of 2020 to assess the effect of spatial and temporal crop geometry on the phenology, yield and agro meteorological indices of hybrid maize at the Agronomy Research Farm, FoA Wadura, Sopore, SKUAST-Kashmir. The experiment was carried out in split- split plot design with dates of sowing (17^th SMW; D₁), 19^th SMW; D₂ and 21^st SMW; D₃) as main plot treatments; varied row spacing (50 cm × 20 cm; S₁, 60 cm× 20 cm; S₂ and 70 cm ×20 cm; S₃) as sub- plot treatments and two maize hybrids (Hytech- 5801;H₁ and YSH- 1; H₂) as sub- sub plot treatments. Results indicated that hybrid Hyteh- 5801 sown on 17^th SMW observed highest grain yield and biological yield and took greater days to reach different phenological stages, thereby piled higher heat units, PTUs, HTUs, HyTUs, PTI followed by 19^th SMW and 21^st SMW. The plant spacing of 70 cm ×20 cm took maximum days for reaching different phenophases and accumulated maximum heat units, PTUs, HTUs, HyTUs, PTI. Thermal use efficiencies were maximum ((HTUE, PTUE, HyTUE and HUE)) when the maize hybrid Hytech-5801was sown on 17^th SMW. The biological yield based thermal efficiencies showed the highest response with row-spacing of 50 cm × 20 cm whereas grain yield based thermal efficiencies were maximum under 70 cm×20 cm plant spacing.