Factors That Affect The Productivity Of Agricultural Crops

V. DISCUSSION Abiotic stresses affect the productivity of agricultural crops in different ways and increased incidence of abiotic stresses has become major cause for reduction in crop productivity. Heat stress is often defined as the rise in temperature beyond a threshold level for a period of time sufficient to cause irreversible damage to plant growth and development. Heat stress due to high ambient temperatures is a serious threat to crop production worldwide (Hall, 2001). Transitory or constantly high temperatures cause an array of morpho-anatomical, physiological and biochemical changes in plants, which affect plant growth and development and may lead to a drastic reduction in yield (Wahid et al., 2007). High temperature stress causes extensive denaturation and aggregation of cellular proteins, which, if unchecked, lead to cell death. Heat response is characterized by inhibition of normal transcription and translation, higher expression of heat shock proteins (HSP’s) and induction of t hermo tolerance (Krishna 2003). Evolving efï ¬ cient, low cost, easily adaptable methods for the abiotic stress management is a major challenge. Worldwide, extensive research is being carried out, to develop strategies to cope with abiotic stresses, through development of heat and drought tolerant varieties by genetic engineering and breeding (Venkateswarlu and Shanker 2009). While most of these technologies are cost-intensive, recent studies indicated the microorganisms could play anShow MoreRelatedEffects Of Climate On Small Scale Farmers1748 Words   |  7 Pagesglobal temperatures. These changes are spread across the globe and impact on agricultural production and plant productivity. Persistent changes in the heat waves, precipitation intensity and other serious events are likely to create effect in the agricultural production. Moreover, factors that complicate climate are likely to decrease productivity in plants thus leading to price hike for various crucial agricultural cr ops Climate Change Projections for Jamaica Countries can predict the local changeRead MoreClimate Change And Agriculture On Indi Impacts And Adaptation For Sustainable Future1646 Words   |  7 Pagesfor their livelihood, water storage in the Himalayan glaciers which are the source of major rivers and groundwater recharge. Possible changes in temperature, precipitation and CO2 concentration are expected to significantly impact crop growth and agricultural productivity. 2. Objectives and Methodology This paper provides a synthesis of available information, consider major knowledge gaps and find research that useful for farmers, communities, indigenous peoples and academics. Secondly, promotes awarenessRead MoreReview Of Kenya s Agricultural And Food Policy Essay1586 Words   |  7 PagesReview Kenya’s agricultural and Food policy Food is one of the three basic human wants, and arguably the most significant of the three. Mudavadi has captured this in his work, by advancing that â€Å"Food is a basic need and a human right. For effective development of human resources, the basic health, food and nutrition requirements of the people must be met. Investing in people means investing in their health and the removal of their food insecurity.† This is important for any government since hungryRead MoreMozambique Is A Poor Country Essay1599 Words   |  7 Pagessafe and nutritious food, that meets dietary requirements for a healthy lifestyle. Mozambique has a ‘high level of food insecurity, like many other countries in Africa, putting individuals, families and communities at risk. Some major factors in Mozambique that affect its food security are poor agriculture, the occurrence of natural disasters, and the presence of diseases particularly HIV and AIDS. Along with many other minor contributors such as food prices, urban migration, and pollution of surfaceRead MoreThe world’s population is increasing at a rapid rate. According to Worldometers, by 2050 there will1400 Words   |  6 Pagesexperienced and influenced by different factors such as dramatic economic growth in developing nations and urbanization resulting in more ‘consumers’ rather than ‘producers’. In addition, farm produced commodities are increasingly used as feed-stocks for bio-fuels in response to decreasing supply and increasing price of fossil fuels. Agriculture biotechnology organizations are committed to solve crop production problems and enhance agriculture productivity to sustainable levels to keep pace withRead MoreSwot Analysis Of Agricultural Industry : Food Regulation, Distribution, And Consumption Of Foods935 Words   |  4 PagesPESTEL Analysis of Agricultural Industry Political factors impact the agricultural sector in factors relating to regulation, distribution, and consumption of foods in a given country. Government policies and imposed regulations have a direct effect on nutritional choices that a consumer makes, and this, in turn, affects the agriculture market (KPMG, 2012). For example, policies governing food prices or the amount of information that a consumer will receive affects the choice of the consumer. FoodRead More3 Elements Of Smallholder Agriculture770 Words   |  4 PagesThe family relies on its agricultural activities for most of the food consumed – be it through self-provision, non-monetary exchanges or market exchanges. The family members also engage in various activities other than farming. The farm relies on family labour with limited reliance on temporary hired labour, but may be engaged in labour exchanges within the neighbourhood or a wider kinship framework. Reciprocal relationships are important here for product or productive factor exchanges. NeverthelessRead MoreThe Importance Of Diversity Within Crops And Their Microbial Symbionts1260 Words   |  6 Pagessustainability of modern agricultural systems. The prevalence of chemical fertilizers, pesticides and monocultures reflect food production systems that not only require constant human intervention, but also lack internal regulation. To address these economic and environmental issues, one key strategy would be to enhance the biodiversity in agroecosystems in order to model the homeostasis present in natural ecosystems. By understanding the importance of diversity within crops and their microbial symbiontsRead MoreIs Food Production A Growing Concern?1473 Words   |  6 PagesThe world’s population is predicted to reach 9 billion by 2050. Will we be able to feed everyone, what are the problems likely to be and what do we need to overcome these problems?† Undoubtedly food production is becoming a growing concern as factors such as the rapidly growing global population and changing diets within developing countries stretch current production techniques to the limit. The total global human population is expected to increase by 34% by 2050 with this growth occurring predominatelyRead MoreGlobal Warming Is The Trend Of Continuing Increases1618 Words   |  7 Pagesuncertainty on productivity in the primary sectors. Global warming has been a major topic of environmental concern over the past several decades. The International Panel on Climate Change (IPCC) has recently predicted a 1-3.5 degree Celsius increase in average atmospheric temperature above 1990 levels by the year 2100. Although this temperature increase may seem small, even an increase or decrease of a few degrees in atmospheric temperature is capable of causing drastic alterations in the agricultural process