By N.K. Srinivasa Rao, K.S. Shivashankara, R.H. Laxman
This e-book brings jointly contemporary advances within the sector of abiotic tension tolerance in a variety of greens, fruit vegetation, plantation vegetation and tuber vegetation. the most demanding situations to enhancing the productiveness of horticultural plants are the different sorts of abiotic stresses normally brought on by weather switch on the nearby and international point. warmth, drought, chilly and salinity are the key abiotic stresses that adversely have an effect on progress and productiveness and will set off a sequence of morphological, physiological, biochemical and molecular adjustments in numerous horticultural vegetation. up to now, there aren't any books protecting horticultural crop-specific abiotic rigidity tolerance mechanisms and their administration. Addressing that hole, the ebook is split into 2 sections, the 1st of which highlights fresh advances within the normal elements of abiotic tension tolerance just like the function of hormones, reactive oxygen species, seed remedies, molecular mechanisms of warmth tolerance and heavy steel toxicity, whereas the second one specializes in the abiotic tension tolerance mechanisms of assorted greens, fruit plants, plantation plants and tuber vegetation. It comprises entire discussions of fruit plants like mango, grapes, banana, litchi and arid sector end result; greens plants like tomato, capsicum, onion and tuber plants; and plantation vegetation like coconut, areca nut, oil palm and black pepper. one of the suggestions for plant rigidity survival, examples of either avoidance and tolerance suitable to specific plants are tested intimately, supported by means of chosen accomplished case stories of development. As such, the e-book bargains a helpful source suited to scientists and graduate scholars operating within the fields of crop development, genetic engineering, and the abiotic tension tolerance of horticultural vegetation.
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Additional info for Abiotic Stress Physiology of Horticultural Crops
An understanding of processes linked to these mechanisms is vital in optimizing the crop growth and productivity under stress conditions. One of the important and widely discussed aspects in abiotic stress tolerance is the regulatory roles of plant growth regulators (PGR). PGR are chemical substances that profoundly influence the growth and differentiation of plant cells, tissues, and organs and also function as chemical messengers for intercellular communication. Their biosynthesis within plant tissues is not always localized.
2011) in radish reported that the higher stress sensitivity of radish is associated with higher decline in bioactive cytokinin levels, as a consequence of stimulation in cytokinin regulatory enzymes, cytokinin oxidase. The ipt is an important cytokinin biosynthesis enzyme, and overexpression of it increases cytokinin levels, leading improvements in stress tolerance. Rivero et al. (2007) and Peleg et al. (2011) found overexpression of ipt gene under the control of senescence-associated receptor kinase (SARK; a maturation- and stress-induced promoter) improves the drought tolerance in different plants.
Upreti and M. Sharma several of these have been depicted to have wide applications in improving plant growth and yield and quality of produce. Good progress is also achieved in demonstrating the potential of such PGR in the amelioration of abiotic stress responses in a number of crop plants. In the present chapter, an insight into various physiological and biochemical aspects of PGR in relation to their involvement in abiotic stress is provided. 2 Abscisic Acid (ABA) The ABA is an important chemical signal of plant responses to a range of abiotic stresses, including drought and salinity (Keskin et al.
Abiotic Stress Physiology of Horticultural Crops by N.K. Srinivasa Rao, K.S. Shivashankara, R.H. Laxman