GrainGenes Reference Report: PSO-50-409
Reference
PSO-50-409
Title
Performance and gene effects for wheat yield under inoculation of arbuscular mycorrhiza fungi and Azotobacter chroococcum
Journal
Plant, Soil and Environment
Year
2004
Volume
50
Pages
409-415
Author
Singh R Behl RK Singh KP Jain P Narula N
Abstract
A study was conducted in Hisar, Haryana, India, to investigate the effect of bioinoculants in low input field conditions on the magnitude and direction of gene effects and mean performance of some morphological and productivity traits in wheat cultivars WH 147 (low mineral input), WH 533 (drought tolerant), Raj 3077 (high mineral input) and 6 generations (P SUB 1 , P SUB 2 , F SUB 1 , F SUB 2 , BC SUB 1 and BC SUB 2 ) of 3 crosses, i.e. WH 147 x WH 533, WH 533 x Raj 3077 and WH 147 x Raj 3077. There were 3 treatment consisting of a control (C, without inoculation), inoculation with arbuscular mcycorrhizal fungi (AMF, Glomus fasciculatum ), and dual inoculation with AMF+ Azotobacter chroococcum (Azc). A mineral fertilizer (80 kg N+40 kg P+18 kg ZnSO SUB 4 /ha) was applied in all the 3 treatments. The application of bioinoculants, AMF and AMF+Azc had a positive effect on plant height, peduncle length, grain yield, biological yield and harvest index in various populations of all the crosses. However, in some of the generations, the effect of bioinoculants was insignificant. The joint scaling test revealed that additive-dominance gene effects were mainly operative in governing expression of peduncle length, tillers per plant, plant height, grains per spike, grain yield and all traits except for days to flowering and harvest index in crosses WH 147 x WH533 and WH 533 x Raj 3077. The application of bioinoculants affected the gene effects for days to flowering, days to maturity, flag leaf area, spike length, grains per spike, 1000-grain weight and harvest index where complex genetic interactions were changed to simple additive-dominance gene effects in the cross WH 147 x Raj 3077. Likewise, additive-dominance gene effects were altered and digenic interactions exhibited for days to maturity, flag leaf area in WH 147 x WH 533 and days to flowering, plant height, flag leaf area in WH 533 x Raj 3077. Flag leaf area and plant height were governed by additive gene effects while for days to maturity and 1000-grain weight both additive and dominance gene effects were important. Duplicate epistasis was important in all the 3 crosses for days to flowering and harvest index and in the cross WH 147 x Raj 3077 for 1000-grain weight, grains per spike, spike length and flag leaf area
Keyword
control
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||