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Title: Comparision of production and n consentration of Indian-origin guar (Cyanoposis Tetragonoloba) lines in Oklahoma

item Rao, Srinivas
item Northup, Brian

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 4/25/2012
Publication Date: 10/23/2012
Citation: Rao, S.C., Northup, B.K. 2012. Comparision of production and n consentration of Indian-origin guar(Cyanoposis Tetragonoloba) lines in Oklahoma.[abstract] ASA-CSSA-SSSA Annual Meeting Abstracts. Poster Number 703.

Interpretive Summary: Abstract Only

Technical Abstract: The warm-season pulse guar (Cyanoposis tetragonoloba) has potential to provide alternative crops for the southern Great Plains (SGP). This study evaluated the potential of 3 Indian-origin lines of guar for forage and grain production in Oklahoma, and nitrogen (N) concentrations of biomass. Replicate (n=3) plots (30 m2) were disked, fertilized (60 kg ha-1 P2O5), and sown (25 kg ha-1; 60 cm rows) with inoculated Bundel (BG) lines BG-1, BG-2, and BG-3 lines, and Kinman (control) late-May 2009 through 2011. Plant samples were collected at vegetative (leaf+stem) and physiological maturity stages, with samples collected at maturity separated into leaf+stem, pods, and grain portions. Samples were dried to constant weight (60°C forced draft oven) to calculate aboveground biomass, and analyzed for N concentration. Biomass yield and N concentrations showed significant year X growth stage interactions (p=0.01); no effects related to cultivars were recorded in herbage production (0.46