Potato Journal 

About: Potato Journal is an academic journal. The journal publishes majorly in the area(s): Population & Blight. It has an ISSN identifier of 0970-8235. Over the lifetime, 444 publications have been published receiving 2344 citations.

TargeTing The poor and hungry wiTh poTaTo science

Abstract: An updated targeting analysis for potato based on its local importance and a composite indicator of livelihood has been presented. in some areas, the potato crop is essential to the livelihood of a large number of people, elsewhere it is less essential, but still very important for subsistence and income generation. potato production grew faster than expected over the past fifteen years in all regions of developing countries except Latin america and east asia outside china. potato contributes in two different ways to the livelihoods of the poor. in some areas potato is a staple grown and eaten by the poor where it contributes directly to hunger reduction. elsewhere potato is a high value crop which contributes principally to poverty reduction by increasing income or creating employment. The evidence from income elasticities and higher than expected growth rates suggests that potato already is a pathway out of poverty for many farmers as a high value crop. The best way to reach the poor is to ensure that new varieties are intrinsically pro-poor. Much existing international agriculture research already includes pro-poor traits, such as yield stability, late blight and virus resistances. attention should be given to micro-nutrient availability and resistance to heat and drought as pro-poor traits.

The rise of asia as the centre of global potato production and some implications for industry

Abstract: Potato production in the developing countries in Asia now accounts for a greater share of global output than all the industrialized countries combined This paper examines the divergent peaks, valleys, and spikes in output that characterized the 120 million t expansion in potato production in Asia during the last half century New technology, improvements in production and postharvest infrastructure, and government policy along with the inherent traits of the crop itself all contributed to these trends A shift toward more diverse diets and the cash income derived from potato production played an equally, if not more important role After assessing alternative scenarios for future development of the potato sector in the region, the paper concludes by highlighting opportunities for industry before identifying some key topics for future research

Late blight disease of potato and its management

Abstract: Late blight caused by Phytophthora infestans is one of the most dreaded diseases of potato worldwide and cause significant loss in production. The pathogen is highly variable and adapt to the newly bred varieties and fungicides. Population of P. infestans in most of the countries has changed dramatically and original A1 has almost been displaced by more virulent A 2 strain. In India, A 2 mating type was recorded in 1990s and now it has displaced the A1 in temperate highlands while in sub-tropical plains still A 1 is dominating. Virulence to all major resistance genes has been recorded and in India the racial complexity has reached to its zenith resulting in breakdown of many disease resistant varieties. Indiscriminate use of metalaxyl based fungicides has led to the development of metalaxyl resistance world over including India, which has necessitated the use of additional systemic molecules for the management of this disease. The population of P. infestans characterized using molecular markers has led to better understanding of pathogen at molecular level. Mitochondrial DNA haplotyping of P. infestans has revealed that mt Ia is displacing the other haplotypes globally at a faster rate including India. Relationship between P. infestans and the weather is well understood and has been utilized for developing disease forecasting models and decision support systems across the globe including India. An increasing severity of late blight in many potato growing areas, a shift in pathogen population toward increased specific virulence and an increasing tolerance to the most effective late blight specific fungicides suggests a need to develop an appropriate disease management strategy based on information technology.

Growth rates for potato in india and their implications for industry

Abstract: As potato output increased from 1.3 million t to over 34 million t over the last six decades, India became the planet´s second largest potato producer. Nonetheless, this spectacular increase masks a series of less readily apparent tendencies in the growth rates for potato production, area, and yields. while area harvested expanded, the growth for area harvested experienced a series of peaks and valleys; as yields per hectare continuously rose, the growth rate for productivity gradually ground to a halt. This paper analyses the evolution of these and other growth rates for potato in an effort to provide sharper insights into the driving factors behind the increases in production, area harvested, and yields; the most likely future scenario for the potato sector; and, the implications for industry intended to sustain output and utilization in the years ahead. Sub-sector specific recommendations include greater eco-efficiency in cold storage, efforts to explore niches for small-scale processing of French fries to complement industrial scale operations, and renewed promotion of the potato´s nutritional attributes.

Effect of potassium nutrition on potato yield, quality and nutrient use efficiency under varied levels of nitrogen application

Abstract: A field trail was conducted during winter season of 2009-10 and 2010-11 at Central Potato Research station, Patna on sandy loam soil under irrigated condition to find suitable dose of potassium for potato cultivar Kufri Pukhraj for optimum yield, quality and nutrient use efficiency under different nitrogen levels. There was significant positive interaction between N and K. At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest. Potassium and N application improved tuber size by increasing the large and medium grade yield and decreasing the small and very small sized tuber. Maximum yield of 39.83 t /ha was obtained when N and K was applied @ 225 kg/ ha and 150 kg K 2 O/ ha against a tuber yield of only 14.36 t/ ha without N and K application. The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha. There was less weight loss and rottage of tubers with potassium application whereas with increase in nitrogen levels there was increase in weight loss due to tuber rottage.