Novel sources of drought tolerance from landraces and wild sorghum relatives

  title={Novel sources of drought tolerance from landraces and wild sorghum relatives},
  author={Grace Ochieng and Kahiu Ngugi and Lydia N. Wamalwa and Eric Manyasa and Nicoleta Muchira and Desterio Nyamongo and D. Odeny},
  journal={Crop Science},
Funding information CGIARGrainLegumes andDrylandCereals;KenyaNationalResearchFund;CROP TRUST Abstract Sorghum (Sorghum bicolor [L.] Moench) is the fifth most important cereal crop worldwide and second aftermaize (ZeamaysL.) in Kenya. It is an important food security crop in arid and semi-arid lands, where its production potential is hampered by drought. Drought tolerance can bemeasured by a plant’s ability to resist premature senescence, often described as stay-green. This study was carried out… 

Tables from this paper

Genotypic Variation in Cultivated and Wild Sorghum Genotypes in Response to Striga hermonthica Infestation
This study evaluated 64 sorghum genotypes and identified more resistant and high-yielding genotypes than the conventional checks, especially among the F4 crosses, which should be promoted for adoption by farmers.
Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments
Drought-tolerant sorghum varieties possessing a high protein content and tolerance to grain mold with stable performance using additive main effects and multiplicative interaction (AMMI), genotype and genotype × environment interaction (GGE) biplot methods are developed.
Are Traditional Lima Bean (Phaseolus lunatus L.) Landraces Valuable to Cope with Climate Change? Effects of Drought on Growth and Biochemical Stress Markers
Agrobiodiversity and adaptability to environmental changes derived from global warming are challenges for the future of agriculture. In this sense, landraces often have high levels of genetic
High‐throughput phenotyping reveals differential transpiration behaviour within the banana wild relatives highlighting diversity in drought tolerance
Abstract Crop wild relatives, the closely related species of crops, may harbour potentially important sources of new allelic diversity for (a)biotic tolerance or resistance. However, to date, wild
Evaluation of productivi­ty of different varieties of soryz (Sorghum orysoidum)
Aim. To establish the features of productivity formation (yield, protein and gluten content and estimated yield of bioethanol) of different varieties of soryz. Methods. Experimental studies were
Adapting Agriculture to Climate Change: A Synopsis of Coordinated National Crop Wild Relative Seed Collecting Programs across Five Continents
The Adapting Agriculture to Climate Change Project set out to improve the diversity, quantity, and accessibility of germplasm collections of crop wild relatives (CWR). Between 2013 and 2018, partners
SorghumBase: a web-based portal for sorghum genetic information and community advancement
SorghumBase offers sorghum investigators improved data collation and access that will facilitate the growth of a robust research community to support genomics-assisted breeding.


Novel Sources of Witchweed (Striga) Resistance from Wild Sorghum Accessions
It is concluded that wild Sorghum accessions are an important reservoir for Striga resistance that could be used to expand the genetic basis of cultivated sorghum for resistance to the parasite.
Comparison of drought tolerance of maize, sweet sorghum and sorghum-Sudangrass hybrids
The biomass productivity of the three crops was compared by growing them side-by-side in a rain-out shelter under different levels of plant available soil water (PASW) during the growing periods of 2008 to 2010 at Braunschweig, Germany.
Response of three sorghum (Sorghum bicolor L. Moench) varieties to soil moisture stress at different developmental stages
Although varietal differences in yield were not significant, based on overall performance the older Segaolane appears superior to the more recently developed varieties Phofu and Mahube, in conditions of hydrological unpredictability and intermittent water stress.
Stay-Green in Rice (Oryza sativa L.) of Drought-Prone Areas in Desiccated Soils
The results suggest that the stay-green trait exists as the capacity for maintaining green leaves and benefits dry matter production in desiccated soils in rice cultivars in drought-prone areas.
Cereal flag leaf adaptations for grain yield under drought: knowledge status and gaps
The existing information on cereal flag leaf function under drought is reviewed and the need to better understand its characteristics/adaptations is highlighted, especially at the molecular level.
Does maintaining green leaf area in sorghum improve yield under drought? II. Dry matter production and yield.
The results indicate that sorghum hybrids possessing the stay-green trait have a significant yield advantage under postanthesis drought compared with hybrids not possessing this trait.
Stay-Green Trait: A Prospective Approach for Yield Potential, and Drought and Heat Stress Adaptation in Globally Important Cereals
This review discusses the recent advances in SG as a crucial trait for genetic improvement of the five major cereal crops, sorghum, wheat, rice, maize, and barley with particular emphasis on the physiological consequences of SG trait.