Response of Basmati Rice (Oryza Sativa L.) Cultivars to Different Planting Geometry in Western Plain Zone of Up

Abstract

The present investigation “Response of Basmati rice (Oryza sativa L.) cultivars to different planting geometry in western plain zone of UP” was conducted during the kharif season (2019) at Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.). Experiment was conducted to assess the effect of different varieties and planting geometry on growth, yield and profitability. It was laid out in split plot design with three replications. The main factor comprised three varieties viz. V1-PB 1718, V2- PB 1121, V3-PB 1509 and sub factor comprised six planting geometries (spacing+ hill arrangement) viz. G1 -20 cm x 10 cm + 1, G2: 20 cm x 10 cm + 2, G3: 15 cm x 15 cm + 1, G4: 15 cm x 15 cm + 2, G5: 20 cm x 15 cm + 1 and G6:20 cm x 15 cm + 2. The soil of experimental site was low in organic carbon, nitrogen and medium in available phosphorus and potassium with alkaline in reaction. The maximum values of growth characters and yield attributes (plant height, number of tillers/hill, dry matter accumulation, number of effective tillers, grain/panicle and test weight) were recorded in V1(PB 1718). Similarly, maximum grains & straw yield, nitrogen, phosphorus and potassium uptake and net return were also noticed in this treatment. Harvest index was observed higher in PB 1509. Among the planting geometries, the higher plant height recorded in G2 (20 cm x 10 cm + 2) at all the growth stages, maximum dry matter accumulation was recorded in G4 (15 cm x 15 cm + 2) and number of tillers per hill were recorded higher in G6 (20 cm x 15 cm + 2). Yield attributes, panicle length, number of grains/panicle and 1000-grain weight were recorded maximum in G5 (20 cm x 15 cm + 1) and number of effective tillers/m2 were observed maximum in G4 (15 cm x 15 cm + 2). Straw yield and biological yield were registered maximum in G6 (20 cm x 15 cm + 2). Similarly, maximum grain yield (44.48 q/ha), gross returns (139575 Rs/ha), net returns (92561 Rs/ha) and benefit cost ratio (2.97) were noticed in G4 (15 cm x 15 cm + 2). Therefore. it may be concluded that the use of cultivar V1 (PB 1718) with planting geometry G4 (15 cm x 15 cm + 2) is economically beneficial than other combinations of cultivar and planting geometries for achieving higher yield and net returns.