Effective Manipulation of Potato Storage Timing Enable Seed Production as Summer and Winter Crop Consequently in Year (original) (raw)
Related papers
Advances in innovative seed potato production systems in India
Frontiers in Agronomy
India is the second largest producer of potatoes in the world. Seed is the single most important input in potato cultivation. High seed rate (2.5–3.0 tons/ha), low rate of multiplication, progressive viral degeneration, storage, and transportation are major issues of potato seed production in the country. Potato seed alone accounts for 40%-50% of the total potato production cost, and huge quantities of potentially edible food is put back into the soil as potato seed. The delayed penetration of new improved potato/seed varieties into farmers’ fields due to the slow multiplication rate and frequent seed replacement because of degeneration are associated issues. To circumvent these issues, continuous efforts are being made by potato researchers to develop innovative technologies for quick multiplication of initial healthy breeder’s seed of the released varieties in sufficient quantities to meet the demand in our country. A paradigm shift in potato seed production methods has taken plac...
Possibilities of Enhancing Potato Production in Non-Traditional Areas
Potato cultivation is limited to relatively cooler areas and seasons throughout the world due to photo and thermo-sensitivity of the crop. Attempts to take potato to warmer areas have resulted in drastic reduction in tuber yield or even failure of tuberization. The mean night temperature in large parts of peninsular India are between 18 – 20 O C and climate change is likely to lead to an overall temperature increase of 1-1.5 O C, therefore, heat tolerant varieties which can tuberize and bulk well up to 20 O C night temperature are needed for these areas. CPRI has developed a heat tolerant variety Kufri Surya. In the present study, potential areas for the deployment of this variety were identified by weather simulation studies. Sixteen locations in non-traditional potato growing areas of peninsular India were selected and an estimate of the available number of days in a year suitable for potato crop at different night temperature scenarios, viz. 18, 20 and 22 O C were simulated. The ...
Growth and Yield Performance of Potato Clones under Different Planting Dates
Journal of Tikapur Multiple Campus, 2022
Potato (Solanum tuberosum L.) is the fourth most important crop of Nepal. However, variety and planting methods have been catered for its low productivity in the country. A field trial was conducted at Institute of Agriculture and Animal Science, Lamjung Campus, Nepal from October 2016 to February 2017 to identify the suitable planting time and the best genotype. The trial was laid out in two factorial RCBD with three replications. Planting factors included four planting dates (5 th October, 20 th October, 4 th November and 19 th November), while genotypes were two potato clones (Khumal Seto and Kufri Jyoti). The result revealed that the mean effect of planting date and clones both significantly affected percentage emergence, plant height, number of leaves/plant, number and weight of tuber/plant. The maximum yield was obtained from 5 th October planting (31.55 t/ha) which was statistically similar to 20 th October planting (30.94 t/ha), but the lowest yield was found on 19 th November (22.27 t/ha) and was at par with 4 th November (22.77 t/ha). The yield of clone Khumal Seto (27.68 t/ha) was at par with Kufri Jyoti (26.09 t/ha). However, interaction effect of two factors significantly influenced percentage emergence, plant height and number of small size (<25 g), medium size (25-50 g) and large size tubers (>50 g), but had no significant difference on overall yield. Delayed planting (19 th Nov) of both clones produced the highest percentage of small size unmarketable tuber number. Thus, planting of both clones either on 5 th October or 20 th October helps to maximize the productivity.
Performance evaluation of potato clones for the central Terai Region of Nepal
2021
A series of experiments were carried out to evaluate the performance of exotic potato clones including PRP lines at research field of Regional Agricultural Research Station (RARS), Parwanipur, Bara, Nepal during the winter seasons of 2017 and 2018. Thirty-nine potato clones were evaluated in initial evaluation trial and eleven clones were evaluated in coordinated varietal trial with check varieties Khumal Ujjwal and Kufri Jyoti. From the initial varietal trial in 2017, the highest tuber yield (21.54 mt/ha) was found in CIP389660.9 followed by CIP391046.14 (21.38 mt/ha). In 2018, the highest tuber yield (29.72 mt/ha) was produced in CIP392759.1 followed by CIP393085.5 (26.92 mt/ha) and CIP391046.14 (26.64 mt/ha). In 2018, the tuber yield was the highest (26.12 mt/ha) in PRP 266265.15 followed by CIP 393371.159 (24.79 mt/ha). In coordinated varietal trial carried out in 2017/18, the highest tuber yield was noted in CIP394600.52 (42.65 mt/ha) followed by CIP395443.103 (30.83 mt/ha) and...
Journal of Applied Biology & Biotechnology
Potato farmers in India and other developing countries lack timely availability of healthy and good quality potato seed tubers. This is mainly due to conventional seed multiplication techniques which, has suffered inherently from low multiplication rates. The soil medium is generally used for seed tuber production. In order to overcome bottlenecks, a study was conducted to evaluate mini-tuber production potential for selected baskets of potato varieties in different soil-less solid media types compared with soil as a control. Soil-less media technique would also assist in planning for economical and rapid seed multiplication program, along with pathogen-free seed tubers, which will increase production of good quality reliable seed material in the country. This will finally ensure increased productivity of potato crop. With these objectives, an experiment was conducted during the years, 2015-2016 and 2016-2017. Three different soil-less solid propagation media (kalpeat plus, soilrite mix and soilrite mix TC) were tested against control (soil:sand 3:1); for five different varieties (1001, 1002, 1003, 1004 and 1005). Plantlets grown on soilrite mix performed better with higher mini-tuber yield of 548.58 gm/ container (1/2 m²), while for other propagation media, 283.39 gm/container (1/2 m²), 96.08 gm/container (1/2 m²), and 52.61 gm/container (1/2 m²) respectively, were observed for kalpeat plus, soilrite mix TC and control (soil:sand 3:1). Among the varieties tested, viz., 1005 and 1004 produced maximum mini-tubers, between 9 tubers/plant and 5 tubers/plant respectively. Soilrite mix increased the number and size of mini-tubers. Thus, this study concluded that soil-less solid media induced seed potato multiplication is better than traditional soilbased techniques.
Enhancing potato seed production using rapid multiplication techniques
2013
Potato is regarded as a high-potential food security crop due to its ability to provide high yield and quality product per unit input with a short crop cycle (mostly <120 days). The national average yield at present is approximately 10.5 t/ha, which is lower than the world‘s average yield of 17 t/ha (Muthoni et al., 2011). The potential of potato crop has not been adequately exploited. The crop is mainly grown at high altitudes of 1,500–3,000 masl by small-scale farmers, who account for over 90% of the production. Most of the production is under rainfed conditions and carried out in scattered patches of intensive small-scale agriculture (McArthur, 1989).
Importance of Potato Micro Tuber Seed Material for Farmers of Uttarakhand Hills
2011
In India, still traditional methods are used for potato cultivation. In hills, farmers face many problems in the cultivation and storage of seed material, such as wastage of large food material, low multiplication rate and lake of commercialization. These problems affect the farmers socially as well as economically. Using In vitro techniques several problems related to production, cultivation and multiplication can be resolved. A disease free planting material with high yield can be produced, which can solve the problems of hills farmers. The farmers use pieces of potato or whole potato tuber, as a seed so using these conventional methods a large quantity of food material is used for cultivation. Potato is a tetraploid vegetatively propagated crop that poses several problems in seed production. Generally tuber of potato is used as a seed. Due to progressive accommodation of viral diseases in seed stock, availability of good quality seed is a major constraint in potato production, wh...
Producing potato crop from true potato seed (TPS): A comparative study
Australian Journal of Crop Science, 2014
In producing a commercial potato crop from true potato seeds (TPS), ware potato crop can be grown by: direct sowing of TPS in the field for production of seed or ware tubers; raising seedlings from TPS in a greenhouse or seedbed and transplanting them later into the field for production of seed or ware tubers in the same season and; direct sowing of TPS in seedbeds at close spacing for production of seedling tubers for producing a commercial crop in the next season. Each propagation method has its advantages and disadvantages. Based on this background, a study was conducted whose objective was to compare the effectiveness of seedling tubers and seedling transplants in production of a potato crop from true potato seeds. Four potato varieties commonly grown by farmers in Kenya were crossed with five advanced clones from the International Potato Center (CIP) in a North Carolina II mating design to generate twenty cross families. The berries were harvested and seedlings were raised on sand-beds in plastic trays. Later, they were propagated as seedling tubers and seedling transplants in the field at Kenya Agricultural Research Institute (KARI), National Potato Research Centre at Tigoni between March and July 2013. At harvest, data collected included tuber numbers/plant, total weight of tubers per plant (kg) and weight of ware tubers (45 mm< in diameter) per plant (kg). The general observation was that the seedling transplants gave significantly more tubers per plant (15.68) than the seedling tubers (13.08); the reverse was the case when it came to total tuber yield (ton/ha) and percent of ware sized tuber yield. Although seedling transplants took a shorter time to produce a potato crop of commercial value, the low tuber yields (ton/ha) and percentage ware tubers renders this propagation method unsuitable for ware potato production unless there is a market for baby tubers.