Translational Genomics for Crop Breeding: Abiotic Stress Tolerance, Yield, and Quality, an Introduction

Varshney, Rajeev K.; Tuberosa, Roberto

doi:10.1002/9781118728482.ch1

Cited by 2 publications

(2 citation statements)

References 32 publications

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“…Similar results were observed in studies where they reported that qDTY3.1 is linked with earliness and also found in further analysis that this region is co-localized near Hd-6, a major heading date locus [22]. qDTY3.1 was also reported to promote early flowering to overcome drought stress [23].…”

Section: Performance Of Iwp Bils Under Drought Conditionssupporting

confidence: 89%

Development of Drought Tolerant Rice Breeding Lines of an Elite Indian Rice (Oryza sativa L.) Variety Improved White Ponni through Molecular Breeding

Seeli

Manonmani

Raveendran

et al. 2021

IJPSS

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Changes in climatic conditions especially unpredictable drought occurrences are challenging for food security. The present investigation was carried out to improve the grain yield in Improved White Ponni (IWP) rice under reproductive stage drought stress. This variety is well known for its grain quality. Physiological changes, grain yield and related traits under drought were evaluated in the advanced breeding lines of Improved White Ponni X Apo containing qDTY 3.1. The experiment was conducted at the Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural university, Coimbatore during 2020. Two superior backcross inbred lines of IWP X Apo, donor parent and recipient parent were raised under water stress in rain out shelter as well as in well irrigated conditions in replications. Soil moisture content was reduced to 12.7% in drought field showing the stress severity. Physiological parameters such as photosynthetic rate, transpiration rate, stomatal conductance, chlorophyll content and relative water content, Yield and related traits such as days to fifty percent flowering, productive tillers, spikelet fertility, grain yield and grain weight were recorded in the BILs and parents during flowering stages. Reduction was observed in all these traits under water stress. However, in comparison with IWP (94.6%) which lacks qDTY 3.1, BILs with qDTY 3.1 showed less reduction in grain yield (63%) and other traits. Earliness was also observed in qDTY 3.1 containing BILs under drought stress (BILs - 106 days, IWP-117 days) and controlled conditions (BILs- 83 days, IWP-107 days) when compared to IWP. Grain quality estimates in the BILs showed similarity to IWP. These BILs need to be evaluated further for confirmation of drought tolerance and they are effective resources for utilisation in drought breeding programmes.

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Section: Performance Of Iwp Bils Under Drought Conditionssupporting

confidence: 89%

Development of Drought Tolerant Rice Breeding Lines of an Elite Indian Rice (Oryza sativa L.) Variety Improved White Ponni through Molecular Breeding

Seeli

Manonmani

Raveendran

et al. 2021

IJPSS

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“…These constraints limit plant growth and productivity. It reduces average yields for most crop plants by more than 50 % (Varshney and Tuberosa, 2013). Several methods are experimented and applied to increase the productivity and stress tolerance of crop plants.…”

Section: Introductionmentioning

confidence: 99%

Significance of Seed Priming in Agriculture and for Sustainable Farming

Thapa¹,

Adhikari²,

Limbu³

et al. 2020

Trop.cal.Agr

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This paper focuses on the significance and method of priming which is of present and essential need. The need for following seed priming is due to their multiple benefits in agriculture and crop production like rapid germination, good seed vigor, drought, and heat tolerant, abiotic and biotic stress tolerance behavior are seen in primed crops. However, the method of priming for optimum yield differs from crops to crops which are discussed in detail in findings. For sustainable and eco-friendly farming seed priming is also one of the determinants and influencing factors.

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Translational Genomics for Crop Breeding: Abiotic Stress Tolerance, Yield, and Quality, an Introduction

Cited by 2 publications

References 32 publications

Development of Drought Tolerant Rice Breeding Lines of an Elite Indian Rice (Oryza sativa L.) Variety Improved White Ponni through Molecular Breeding

Development of Drought Tolerant Rice Breeding Lines of an Elite Indian Rice (Oryza sativa L.) Variety Improved White Ponni through Molecular Breeding

Significance of Seed Priming in Agriculture and for Sustainable Farming

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