News Update on Potato Production Research: May – 2019

In vitro mass tuberization and virus-free seed-potato production in Taiwan

This is the primary report ofin vitro tuberization turning into possible for agriculture in seed-potato production. The optimum condition forin vitro mass tuberization of virus-free potatoes were: ten mg/1 BA, 8% sucrose. 20°C incubating temperature, and eight hours of one hundred lx incubation photoperiod. associate calculable thirty six,000 dormant, miniature tubers were harvested from the antiseptic containers incubated on a 10m2 bench space in an exceedingly fourmonth amount. when 3 sequent plantings in soil, 1,800 kgs of virusfree seed-potatoes were obtained. [1]

Energy use and economical analysis of potato production in Iran a case study: Ardabil province

The purpose of this study is to work out energy consumption of input and output utilized in potato production, and creating a cheap analysis in Ardabil, Iran. For this purpose, the information were collected from a hundred potato farms in Ardabil, Iran. Inquiries were conducted in a very face-to-face interviewing November–December 2006 amount. Farms were hand-picked supported sampling technique. The results indicated that total energy inputs were 81624.96 MJ ha−1. regarding four-hundredth of this was generated by chemical fertilizers, 2 hundredth from fuel and machinery. regarding eighty two of the full energy inputs utilized in potato production was indirect (seeds, fertilizers, manure, chemicals, machinery) and eighteen was direct (human labor, diesel). Mean potato yield was regarding 28453.61 kg ha−1, it obtained beneath traditional conditions on irrigated farming, and taking under consideration the energy worth of the seed, information superhighway energy and energy productivity worth was calculable to be 20808.03 MJ ha−1 and zero.35, severally, and also the quantitative relation of energy outputs to energy inputs was found to be one.25. This indicated AN intensive use of inputs in potato production not in the midst of increase within the final product. analysis disclosed that total value of production for one area unit of potato production was 3267.17 $. Benefit–cost quantitative relation was calculated as one.88. [2]

Dickeya species: an emerging problem for potato production in Europe

Dickeya species (formerly enteric bacteria chrysanthemi) cause diseases on various crop and decorative plants world‐wide. Dickeya spp. (probably D. dianthicola) were initial reported  on potato within the The Netherlands within the Seventies and have since been detected in several different European countries. However, since 2004–5 a replacement infective agent, with the planned name ‘D. solani’, has been spreading across Europe via trade seed tubers and is inflicting increasing economic losses. though illness symptoms ar typically indistinguishable from those of the competent blackleg infective agent Pectobacterium spp., Dickeya spp. will initiate illness from lower inoculant levels, have a larger ability to unfold through the plant’s plant tissue, ar significantly a lot of aggressive, and have higher best temperatures for illness development (the latter probably resulting in multiplied illness issues as Europe’s climate warms). However, they additionally seem to be less hardy than Pectobacterium spp. in soil and different environments outside the plant. European nation is presently the sole country in Europe to enforce intolerance for Dickeya spp. in its potato crop in an effort to stay its seed tuber trade free from illness. However, there ar variety of different ways that to manage the illness, as well as seed tuber certification, on‐farm strategies and also the use of medical specialty. For medical specialty, new genomics‐based approaches ar currently being utilized to develop D. dianthicola‐ and ‘D. solani’‐specific PCR‐based tests for speedy detection and identification. it’s hoped that these medical specialty, at the side of different aspects of current analysis, can offer valuable tools and knowledge for dominant this serious threat to potato production. [3]

Increased frequency of self-fertile isolates in Phytophthora infestans may attribute to their higher fitness relative to the A1 isolates

Knowledge of population dynamics of union sorts is very important for higher understanding pathogen’s organic process potential and property management of natural and chemical resources like host resistances and fungicides. during this study, 2250 fungus isolates sampled from sixty one fields across China were assayed for spatiotemporal dynamics of union kind frequency. Self-fertile isolates dominated in ~50% of populations and every one however one cropping region with a mean frequency of zero.64 whereas no A2 isolates were detected. Analyses of a hundred and forty genotypes consisting of eighty two self-fertile and fifty eight A1 isolates indicated that on the average self-fertile isolates grew quicker, incontestible higher aggressiveness and were additional tolerant to fungicides than A1 isolates; moreover, pattern of association between virulence quality (defined because the range of completely differential cultivars on that Associate in Nursing isolate will induce disease) and frequency was different within the 2 union sorts. In A1 isolates, virulence quality was negatively related to (r = −0.515, p = 0.043) with frequency however this correlation was positive (r = 0.532, p = 0.037) in self-fertile isolates. Our results indicate a fast increase of self-fertile isolates presumably due to their higher fitness relative to A1 union kind counterpart within the field populations of P. infestans in China. [4]

Sustainable Water Management for Potato Production in Drought Prone Areas in Bangladesh

Water management practices ar a necessary element of contemporary intensive potato (Solanum tuberosum) production. A farmer’s field based mostly experiment was conducted in Multi Location Testing (MLT) website, Khalashpir, rangpur lime underneath On-Farm analysis Division, rangpur lime throughout 2 years of 2014-2015 and 2015-2016 to seek out out the result of irrigation programing with crop growth stages over typical apply in potato. Four irrigation treatments were studied underneath the trial and therefore the treatments were, I1= Farmers apply, I2= Irrigation at stolonization and tuberization stages, I3= Irrigation at stolonization and bulking stages and I4= Irrigation at stolonization, tuberization and bulking stages. the very best yield was recorded in I3 (23.11 tha-1 and twenty.27 tha-1) whereas lowest was in I1 (19.11 tha-1 and seventeen.13 tha-1). the very best ratio was recorded in I3 (BDT.74610 ha-1 and BDT. 68210 ha-1) and lowest was in I1 (BDT. 36660 ha-1 and BDT. 28060 ha-1). Water savings may also be earned by permitting higher soil water depletion toward the ripening amount so all offered keep water within the root zone is employed by the crop. This apply may additionally hasten maturity. Correct temporal arrangement of irrigation could save one to three irrigation applications yet as additionally save the assembly value of the farmers. [5]

Reference

[1] Wang, P.J. and Hu, C.Y., 1982. In vitro mass tuberization and virus-free seed-potato production in Taiwan. American Potato Journal, 59(1), pp.33-37. (Web Link)

[2] Mohammadi, A., Tabatabaeefar, A., Shahin, S., Rafiee, S. and Keyhani, A., 2008. Energy use and economical analysis of potato production in Iran a case study: Ardabil province. Energy conversion and management, 49(12), pp.3566-3570. (Web Link)

[3] Toth, I.K., Van Der Wolf, J.M., Saddler, G., LOjkowska, E., Hélias, V., Pirhonen, M., Tsror, L. and Elphinstone, J.G., 2011. Dickeya species: an emerging problem for potato production in Europe. Plant pathology, 60(3), pp.385-399. (Web Link)

[4] Increased frequency of self-fertile isolates in Phytophthora infestans may attribute to their higher fitness relative to the A1 isolates

Wen Zhu, Lin-Lin Shen, Zhi-Guo Fang, Li-Na Yang, Jia-Feng Zhang, Dan-Li Sun & Jiasui Zhan

Scientific Reports volume 6, Article number: 29428 (2016) (Web Link)

[5] Akhter-Ul-Alam, M., Ferdous, Z., Islam, K., Khatun, M. U., Akter, M. B., Laily, U., Anwar, M. and Sarker, K. (2017) “Sustainable Water Management for Potato Production in Drought Prone Areas in Bangladesh”, Annual Research & Review in Biology, 21(3), pp. 1-9. doi: 10.9734/ARRB/2017/37622. (Web Link)

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