21 century. Such an increase in the atmospheric CO may effect plant growth and productivity of crop plants. st 2 A field experiment was conducted with two potato cultivars namely Kufri Surya and Kufri Chipsona-3 grown inside Open Top Chambers (OTCs) at ambient (385±30 μmol mol ) and elevated CO (570±50 μmol mol ), 1 1 2 during rabi season of the year 2009-2010. The experiment was planned in a r...

(1) a. A potato contains vitamin C. ‘For all/typical x: if x is a potato, x contains vitamin C.’ b. A gentleman opens doors for ladies. ‘For all/typical x: If x is a gentleman, he opens doors for ladies.’ (2) a. The potato was first cultivated in South America. ‘The kind tuber tuberosum was first cultivated in South America.’ b. Shockley invented the transistor. ‘Shockley conceived of, and real...

Objective: An experiment was performed in Ardabil (2012) to investigate the effects of manure consumption in different amounts on reducing nitrogen fertilizer consumption in potato cv. Agria. Methods: This research was conducted in factorial design based on randomized completely blocks design in three replication  in which two manure factors in three levels (control, 30 and 60 tons/h) and nitro...

New railway legislation in Sweden has increased the need for transparent access charges on the Swedish railway network. We estimate cost functions for infrastructure operation, maintenance and renewal in the Swedish national railway network, using unobserved effects models and calculate marginal costs for railway infrastructure wear and tear. We find evidence of unobserved fixed effects at a tr...

Dormancy is one aspect of tuber physiological age that begins with potato tuber initiation. During dormancy, biochemical and physiological processes do occur but they do not trigger immediate morphological changes, yet these processes are relevant for the number of sprouts produced after breaking of the dormancy and for the growth vigour of the seed tuber. This review article reports that dorma...

Shallots (Allium ascalonicum L) is an important vegetable plant as a kitchen spice. and traditional medicine. The productivity of shallots in Riau still low, due to low soil fertility. For this reason, fertilization carried out by combining liquid organic fertilizer with water hyacinth potassium nitrate (KNO3).
 aim study was determine the main interaction influence POC Water Hyacinth KNO3...

The evaluation of potato germplasm for resistance to potato tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), is a valuable component of integrated pest management; however, few attempts have been made to identify natural genetic tuber resistance to tuberworm on potato germplasm. The objective of this study was to screen potato germplasm with potential tuberworm resistance...

BACKGROUND AND AIM In today era, broiler industry facing a problem of price hiking of feed of broiler, also in competitive era there should be lower feed cost, lower feed conversion ratio, low feed consumption yet good body weight at marketable age. MATERIALS AND METHODS Day-old commercial broiler chicks (n=200) were distributed randomly into 5 dietary treatment groups viz. control (T1), prob...

Accounting of greenhouse gas (GHG) emissions from waste landfilling is summarized with the focus on processes and technical data for a number of different landfilling technologies: open dump (which was included as the worst-case-scenario), conventional landfills with flares and with energy recovery, and landfills receiving low-organic-carbon waste. The results showed that direct emissions of GH...

Given the importance of potato in the economy and people’s nutrition, as well as planting of disease-free seeds, it seems necessary to produce healthy seeds through tissue culture. This study was conducted during 2012-2013 at the Research Center of Agricultural University of Tajikistan aiming to evaluate the effect of different sizes of mini-tuber on yield and yield components of potato crop. A...