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Genetic diversity for grain Zn concentration in finger millet genotypes:Potential for improving human Zn nutrition

The Crop Journal 2016年第3期4卷 229-234页

作者： ramegowda Yamunarani Geetha Govind venkategowda ramegowda Harshavardhan Vokkaliga Thammegowda Shankar Ambarahalli Guligowda Department of Crop Physiology University of Agricultural SciencesGandhi Krishi Vignana Kendra Department of Plant Pathology University of Arkansas Department of Crop Soil and Environmental SciencesUniversity of Arkansas

Nearly half of the world population suffers from micronutrient malnutrition,particularly Zn *** is important to understand genetic variation for uptake and translocation behaviors of Zn in relevant crop species to increase Zn concentration in edible *** the present study,genetic variation in grain Zn concentration of 319 finger millet genotypes was *** genetic variation was found among the genotypes,with concentrations ranging from 10 to 86 μg g^(-1)*** and translocation studies with Zn/^(65) Zn application in 12 selected low-Zn genotypes showed wide variation in root uptake and shoot translocation,with genotypes GEC331 and GEC164 showing greater uptake and *** GEC164 and GEC543 showed increased grain Zn *** GEC331 and GEC164 also showed improved yield under Zn *** variation in grain Zn concentration among finger millet genotypes found in this study offers opportunities to improve Zn nutrition through breeding.

关键词： Finger millet Genetic variation Human nutrition Micronutrient Zinc

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Combined Drought and Heat Stress in Rice: Responses, Phenotyping and Strategies to Improve Tolerance

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Rice science 2021年第3期28卷 233-242页

作者： Maria Vera Jesus DA COSTA Yamunarani ramegowda venkategowda ramegowda Nataraja N.KARABA Sheshshayee M.SREEMAN Makarla UDAYAKUMAR Department of Crop Physiology University of Agricultural SciencesGandhi Krishi Vigyana KendraBangalore 560065India

Simultaneous occurrence of drought and heat stress will have significant negative impact on rice yield,especially under upland *** projected increase in global temperatures and reduced precipitation will increase the frequency of occurrence and intensity of these stresses,threatening rice *** recognizing the importance of combined stress in rice,the knowledge generated in this area is very *** complex,understanding combined stress tolerance of rice under water saving cultivation is more critical towards development of climate resilient rice ***,we summarized the effects of combined stress on rice physiology with more emphasis on reproductive *** responses,phenotyping and physiology challenges and potential strategies for improving combined stress tolerance in rice are also discussed.

关键词： rice drought stress heat stress combined stress flowering grain filling omics response phenotyping genetic enhancement

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