Chickpea (Cicer arietinum L.) is an important food legume and heat stress affects chickpea ontogeny over a range of environments. Generally, chickpea adapts to high temperatures through an escape mechanism. However, heat stress during reproductive development can cause significant yield loss. The most important effects on the reproductive phase that affect pod set, seed set and yield are: (1) flowering time, (2) asynchrony of male and female floral organ development, and (3) impairment of male and female floral organs. While this review emphasises the importance of high temperatures >30°C, the temperature range of 32–35°C during flowering also produces distinct effects on grain yield. Recent field screening at ICRISAT have identified several heat-tolerant germplasm, which can be used in breeding programs for improving heat tolerance in chickpea. Research on the impact of heat stress in chickpea is not extensive. This review describes the status of chickpea production, the effects of high temperature on chickpea, and the opportunities for genetic improvement of chickpea tolerance to high temperatures.

/pdf/high-temperature-tolerance-in-chickpea-and-its-implications-2vmo3osgad.pdf

High temperature tolerance in chickpea and its implications for plant improvement

Conventional breeding in conjunction with molecular techniques and transgenic approaches have a great promise
to reduce pest associated crop losses, and accelerate the progress in developing cultivars with resistance to
insects. Although, considerable progress has been made over the past two decades in manipulating genes from
diverse sources to develop plants with resistance to insect pests, deployment of molecular techniques for insect
resistance, understand nature of gene action and metabolic pathways, but rapid and cost effective development
and adoption of biotechnology-derived products will depend on developing a full understanding on the interaction
of genes within their genomic environment, and with the environment in which their conferred phenotype interact.
A good beginning has been made in developing genetic linkage maps of many crops, but the accuracy and precision
of phenotyping for resistance to insect pests remains a critical constraint in many crops. Improved phenotyping
systems will have substantial impact on both conventional and biotechnological approaches to breed for resistance
to insect pests, in addition to the more strategic research that feeds into these endeavors.

/pdf/paradigm-shifts-in-research-on-host-plant-resistance-to-3ognfryhnd.pdf

Paradigm Shifts in Research on Host Plant Resistance to Insect Pests

II TABLE OF CONTENT V LIST OF TABLES VIII LIST OF FIGURES XI ABBREVIATION XIV ACKNOWLEDGEMENTS XV CHAPTER 1: INTRODUCTION 1 CHAPTER 2: REVIEW OF LITERATURE 4 2.

The basis of chickpea heat tolerance under semi-arid environments

English and Hindi) Bibliography I – XXVI

Variability, stability and selection response analysis for yield and yield attributing traits in chickpea

Grain legumes are the major food crops grown and consumed mostly by the poor farmers as an important source of protein in the drylands of the world The ensuing climate change has posed serious potential threats to the cultivation of these crops that are important for the sustainable livelihoods of the poorest of the poor in these regions There is evidence to suggest that the ecological dynamics and equilibriums are likely to be affected as a result of changing climate, either by making these crops susceptible to new diseases or by increasing the intensities of diseases, pests, and parasites Despite many uncertainties, there is a growing consensus that these adversities could lead to an overall increase in the disease and pest pressure besides harsher abiotic stresses Since most of the grain legumes have a narrow genetic base and levels of resistance to some biotic and abiotic constraints are low, making crop improvement an overarching research-for-development challenge for maximizing the benefits that grain legumes offer to smallholder farmers Running against the headwinds, grain legume research has been immensely benefited by applications of modern biotechnological tools and approaches that have the potential to develop solutions for destructive diseases, besides making headway against the complex problems of drought Similarly, identifying novel genes/traits and assessing their suitability as candidate genes for genetic engineering options will be important for future breeding programs in order to achieve remarkable impacts in these grain legume crops globally This chapter mainly provides a comprehensive picture of the different biotechnological interventions adopted for addressing various constraints in gain legume productivity and improvement, highlighting the pitfalls and possible solutions that can be taken through an integrated approach to combat the altered environmental conditions

/pdf/grain-legumes-biotechnological-interventions-in-crop-2kbklelo6f.pdf

Grain Legumes: Biotechnological Interventions in Crop Improvement for Adverse Environments

Genetic enhancement of stress tolerance in chickpea: present status and future prospects

Towards molecular breeding of Heliothis/Helicoverpa resistance in grain legumes.

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Genetic enhancement of stress tolerance in chickpea: present status and future prospects

Towards molecular breeding of Heliothis/Helicoverpa resistance in grain legumes.