|Author:||Habyarimana, E. ; Laureti, D. ; Ninno, M. de ; Lorenzoni, C.|
|Book Group Author:||NA|
S. bicolor is a multifunctional crop that can be successfully grown in areas where water supply is limited. The aim of this study was to evaluate sorghum genotypes for biomass performance and drought resistance in field conditions in Italy. Data from a survey conducted on 75 lines and two hybrids revealed that tropical sorghum landraces can achieve high yields (33-51 t/ha under irrigation, and 20-29 t/ha under rainfed conditions) of total above ground dry biomass. Performance under rainfed conditions was significantly associated with green leaf area retention (r: -0.47; P: 0.001), plant height (r: 0.50; P: 0.001), and maturity (r: 0.61; P: 0.001). Differences in biomass production potential could explain the observed dry matter yield variability in sorghum materials under water stressed conditions. A stay-green source (SDS 1948-3) along with two senescent types (IS 23509 and IS 33350) were identified and could be of great interest in drought resistance breeding research. The need for developing drought tolerant sorghum hybrids to increase and stabilize biomass production is highlighted.
|Pages:||23 - 28|
|Journal:||Industrial Crops and Products|
biomass, biomass production, drought, drought resistance,genotypes, hybrids, irrigation, irrigation scheduling, landraces, leafarea, lines, maturity, plant height, plant water relations, rain, waterstress, Italy, Mediterranean Region, Sorghum bicolor, Sorghum, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, Southern Europe, Europe, Mediterranean Region, DevelopedCountries, European Union Countries, OECD Countries, drought tolerance,Mediterranean countries, rainfall, watering, Field Crops (FF005) (NewMarch 2000), Plant Water Relations (FF062), Plant Production (FF100),Environmental Tolerance of Plants (FF900)