scholarly journals Effect of cut seed tubers and pre-germination on potato tuber yield

2020 ◽  
Vol 13 (7) ◽  
pp. 3144-3156
Author(s):  
Pape Diop ◽  
Elhadji Serigne Sylla ◽  
Mamadou Diatte ◽  
Babacar Labou ◽  
Karamoko Diarra
Keyword(s):  
Economic Benefits ◽  
Potato Seed ◽  
Potato Tubers ◽  
Plant Seed ◽  
Seed Tubers ◽  
Significant Difference ◽  
Whole Seed ◽  
Cut Seed ◽  
The Impact ◽  
Cut Seed Tubers

Potato (Solanum tuberosum L.) is one of the important vegetable crops in Senegal with the potential to improve the national food supply and economic benefits to smallholder producers. Experiment was conducted from November 2015 to March 2016 to assess the impact of cut seed tubers and pre-germination on seed tuber storage conditions on potato tubers yield. Four treatments were used for experiment. Pre-plant seed treatments were (T1) 136 whole seed tubers 45-55 g then pre-germinated; (T2) 68 cutted tubers 22-28 g then pre-germinated; (T3) 68 pre-germinated seed tubers then cut 22-28 g; (T) 136 whole seed tubers 45-55 g not pre-germinated (maintained 4 °C). Plants grown from whole and pre-germinated seed tubers had significantly higher yield and more number of secondary stems per plant, when compared to cut and or no pre-germinated seed (P < 0.001). Daughter tubers produced from cut seed resulted in higher small size potato tubers than those from whole seed (P < 0.001). However, no significant difference was found on potato seed emergence. Our results indicated a clear advantage to plant whole and pre-germinated seed potatoes with the aim of producing healthier daughter tubers and increasing yields.Keywords: Seed potato, whole seed, pre-germination, Niayes, Senegal.

scholarly journals Performance of Different Size True Potato Seed Seedling Tubers at Khumaltar

1970 ◽  
Vol 6 ◽  
pp. 35-38
Author(s):  
Ram C Adhikari
Keyword(s):  
Late Blight ◽  
Ground Cover ◽  
Tuber Size ◽  
Potato Seed ◽  
True Potato Seed ◽  
Seed Tubers ◽  
Research Journal ◽  
Size Tuber ◽  
Cut Seed ◽  
Cut Seed Tubers

A field study was carried out at Khumaltar-Lalitpur, during 2002-2004 to evaluate and comparethe performance of different sizes of seedling tubers (1-5 g, 5-10 g, 10-20 g and 20-40 g) of truepotato seed (TPS) with whole and half cut seed tubers of Desiree of 20-40 g size at 60- × 25-cmspacing. Percent emergence, plant height, ground cover by foliage, stems/plant, number of tubersper plant, marketable and total yields were significantly increased with the increase in seedlingtubers weight as compared to whole and half cut seed tubers of Desiree. Late blight(Phytophthora infestans L.) disease was quite low in the TPS crops than Desiree. Both wholeand half cut seed tubers of Desiree produced significantly higher average per tuber weight.Uniformity of the tubers harvested from different sizes of seedling tubers was statisticallysimilar and tubers from Desiree were statistically uniform as compared to seedling tubers. Thethree years result suggests that more than 1 g size seedling tubers can be successfully used forpotato production as from the seed tubers of any standard variety.Key words: Desiree; seedling tuber; tuber size; tuber yieldDOI: 10.3126/narj.v6i0.3341Nepal Agriculture Research Journal Vol.6 2005 pp.28-34

scholarly journals Preliminary Investigation of Whole Versus Sliced (Cut) Potato (Solanum tuberosum L.) Tubers Performance in Pankshin, North Central, Nigeria

2021 ◽  
pp. 100-104
Author(s):  
S. T. Dayok ◽  
A. T. Gani ◽  
F. I. Fodim
Keyword(s):  
Solanum Tuberosum L ◽  
Block Design ◽  
Preliminary Investigation ◽  
Potato Seed ◽  
Seed Tubers ◽  
Cropping Season ◽  
Significant Difference ◽  
Plateau State ◽  
Whole Seed ◽  
Storage Facilities

Potato is a highly perishable crop and storage facilities for the crop are also limited. Consequently, to keep planting materials (seed) from the end of one cropping season to the beginning of another pose a great challenge to growers. This study was conducted during the 2019 cropping season in Pankshin, Plateau state, Northern Guinea savanna zone, Nigeria to compare the performance of whole seed tubers (T1) and slice seed tubers (T2) of potato. The treatments were laid out in a randomized complete block design (RCBD), each replicated thrice. Individual plots have a dimension of 3 m x 5 m with distance of 1 m between blocks and 0.5m between plots. Parameters evaluated were rate of plant germination from cultivated tubers, plant height and fresh yield.  The data were analysed using T – test. Results showed that there was no significant difference between whole seed potato and sliced tuber seed for all the parameters tested.  This study suggests that in areas where seed tubers are scarce, growers should cut there potato seed tubers to enable them have more seeds for planting. Storage facilities should be provided to farmers by government and spirited individuals or groups in order to reduce the high costs of seeds for planting. 

scholarly journals First Report of Potato Tuber Sprout Rot Caused by Fusarium sambucinum in Michigan

Plant Disease ◽  
2006 ◽  
Vol 90 (11) ◽  
pp. 1460-1460 ◽  
Author(s):  
P. S. Wharton ◽  
P. Tumbalam ◽  
W. W. Kirk
Keyword(s):  
Fusarium Sambucinum ◽  
Potato Tubers ◽  
Tuber Tissue ◽  
Dry Rot ◽  
First Report ◽  
Seed Tubers ◽  
Fusarium Dry Rot ◽  
Whole Seed ◽  
Cut Seed ◽  
Cut Surface

Fusarium dry rot is one of the most important diseases of potato (Solanum tuberosum L.), affecting tubers in storage and whole seed or seed pieces after planting (2). Fusarium sambucinum Fuckel (teleomorph Giberella pulicaris) is the most common pathogen causing dry rot of stored tubers in North America. (4). Cut seed potato tubers of cvs. FL1879 and Pike with severe sprout rot were collected in Michigan during May 2006. As well as having rotted sprouts, all diseased tubers had dry rot. When diseased sprouts were cut in half, brown, necrotic lesions could be seen spreading down the center of the sprout in vascular tissue and at the base of the sprout in tuber tissue. Pathogen isolations were made from both infected tuber tissue and diseased sprouts on potato dextrose agar (PDA). In both cases, only F. sambucinum was isolated from diseased sprout and tuber tissue. Identification of the pathogen was based on colony and conidial morphology. This included white, fluffy mycelium on the surface and crimson coloration of the colonies viewed from the underside of PDA plates and large distinctive macroconidia (3). Identification was confirmed by comparison of ITS (internal transcribed spacer) sequence data with reference isolates. The ITS region of rDNA was amplified by polymerase chain reaction (PCR) with primers ITS1/ITS4 and sequenced. BLASTn analysis (1) of the sequence obtained showed a 100% homology with F. sambucinum Fuckel. For inoculum production, isolates were grown on PDA at 8°C for 14 days prior to inoculation. Pathogenicity was tested in potato tubers of cv. FL1879 with a single isolate collected from diseased sprouts. Whole seed tubers with 4 mm long sprouts were cut in half longitudinally with a sterile knife to ensure that seed pieces had viable sprouts. The cut surfaces of seed pieces were spray inoculated with 200 ml of conidial suspension (1 × 104 conidia ml-1) over the entire cut surface to give a final dosage of approximately 1 ml per seed piece. Care was taken to limit inoculum spray to the cut surface so that sprouts were not inoculated. Seed pieces (40 per replicate × 4 replicates) were then placed in plastic boxes (30 × 15 × 10 cm) and incubated in the dark at 18°C and 95% relative humidity for 30 days in a controlled environment chamber. As a control, cut seed pieces were spayed with sterile distilled water and incubated as above. All tubers inoculated with the pathogen developed typical Fusarium dry rot symptoms consisting of a brown, dry decay of tuber tissue with mycelial lined cavities. Sprouts on inoculated tubers developed symptoms that were observed in the initially collected seed pieces, and F. sambucinum was reisolated from all infected sprouts. The noninoculated control tubers did not develop any symptoms of dry rot. The results of the pathogenicity tests indicate that F. sambucinum caused sprout rot on potato seed pieces. Since only the cut surfaces of tubers were inoculated, it is assumed that infection of sprouts is systemic through the tuber. To our knowledge, this is the first report of F. sambucinum causing a sprout rot of developing sprouts on seed tubers in the United States. References: (1) S. F. Altschul et al. Nucleic Acids Res. 25:3389, 1997. (2) L. E. Hanson et al. Phytopathology 86:378, 1996. (3) P. E. Nelson et al. Pages 118–119 in: Fusarium Species: An Illustrated Manual for Identification. The Pennsylvania State University, University Park and London, 1983. (4) G. A. Secor and B. Salas. Fusarium dry rot and Fusarium wilt. Pages 23–25 in: Compendium of Potato Diseases. 2nd ed. W. R. Stevenson et al., eds. The American Phytopathological Society, St. Paul, MN, 2001.

scholarly journals The impact of the employer brand on the corporate reputation of hotel companies

Marketing ◽  
2020 ◽  
Vol 51 (4) ◽  
pp. 259-270
Author(s):  
Jasmina Ognjanović
Keyword(s):  
Corporate Reputation ◽  
Economic Value ◽  
Economic Benefits ◽  
Social Value ◽  
Three Dimensions ◽  
Significant Difference ◽  
Employer Brand ◽  
The Republic ◽  
The Impact ◽  
Non Parametric

Employees are one of the key resources involved in building of corporate reputation. The efficiency of employees is reflected in the corporate reputation and depends on the development of the employer brand. The concept of the employer brand is aimed at building the image of attractive employer in the labor market and implies providing functional, psychological and economic benefits for potential and current employees. The aim of this paper is to examine the interdependence of the employer brand dimensions and the corporate reputation of the observed hotels in the Republic of Serbia. The research involved the application of correlation analysis, regression analysis and non-parametric tests to check the differences between groups. In the paper are observed three dimensions of the employer brand: functional-economic value, social value and interest value. It is proved and the presence of a positive and statistically significant correlation between the dimensions of the employer brand and the corporate reputation of the observed hotels. Based on the processed data, the influence of the dimensions of the employer brand on the corporate reputation of the hotel has been proven, with the strongest influence on the social value and functional-economic value. Non-parametric tests did not reveal a statistically significant difference in the level of development of the employer's brand dimensions between different categories of hotels.

scholarly journals Evaluation of different fungicides applied as seed tuber treatments for the control of potato silver scurf

2005 ◽  
Vol 82 (2) ◽  
pp. 41-48 ◽  
Author(s):  
V. Hervieux ◽  
R. Chabot ◽  
J. Arul ◽  
R.J. Tweddell
Keyword(s):  
Solanum Tuberosum ◽  
Seed Tuber ◽  
Field Trials ◽  
Potato Seed ◽  
Silver Scurf ◽  
Helminthosporium Solani ◽  
Potato Tubers ◽  
Experimental Conditions ◽  
Soil Inoculum ◽  
Seed Tubers

Silver scurf of potatoes (Solanum tuberosum), caused by the fungus Helminthosporium solani, is an important surface-blemishing disease of potato tubers. The objective of the study was to evaluate the efficacy of different fungicides applied to potato seed tubers for control of silver scurf. Field trials were conducted in Québec province in 1998 and 1999. Potato seed tubers infected with H. solani were treated with either talc, fludioxonil, mancozeb, iprodione, thiabendazole, imazalil or azoxystrobin, and planted at three locations in 1998 and two locations in 1999. The results showed that, under our experimental conditions, the fungicides tested, applied as seed treatments, did not significantly influence total and marketable yields as well as silver scurf severity on daughter tubers at harvest and after different storage periods. In addition, this study showed the influence of the experimental locations on silver scurf development and suggests that soil inoculum plays a role in the epidemiology of the disease.

Effect of whole seed tubers, cut seed and within row spacing on potato (cv. Sebago) tuber yield

1990 ◽  
Vol 30 (3) ◽  
pp. 427 ◽  
Author(s):  
PC Strange ◽  
KW Blackmore
Keyword(s):  
Seed Potato ◽  
Tuber Yield ◽  
Total Yield ◽  
Row Spacing ◽  
Multiplication Rate ◽  
Potato Tubers ◽  
The Mean ◽  
Whole Seed ◽  
Cut Seed ◽  
Effect On Yield

Whole seed potato tubers in the size ranges 35-100 g, 101-150 g and 35-150 g were compared with cut seed and a mixed run grade of both whole 35-100 g tubers and cut seed, at within row spacings of 25 and 33.3 cm in rows 81.3 cm wide, at Healesville, Ballarat and Warragul districts in 1986-87 and 1987-88. Whole 35-250 g tubers and 40 cm within row spacing were also included in experiments at Healesville during the 2 seasons. The mean total tuber yield from planting whole 35-150 g tubers (47.9 t/ha) was significantly higher than from planting Run grade seed [44.9 t/ha, 1.s.d. (P=0.05)=2.0]. Yields of 35-100 g and 101-150 g tubers were also significantly higher with plantings of whole seed compared with Cut or Run seed. The mean yield of tubers >250 g was significantly higher from planting Run grade seed (12.0 t/ha) than whole 35-150 g tubers [9.7 t/ha, 1.s.d. (P=0.05)=1.8]. Increasing the within row spacing from 25 to 33.3 or 40 cm significantly increased the yield of tubers >250 g and significantly reduced the yield of 101-150 g tubers. The effect on yield of 35-100 g, 151-250 g tubers and total tuber yield was variable. The mean multiplication rate (total yield/seed planting rate) from plantings of 101-150 g whole seed was significantly lower than from plantings of Cut and Run seed but was increased significantly with plantings of whole 35-100 g seed. Increasing the within row spacing significantly increased the multiplication rate and values from 1 environment were 17.2 at 25 cm, 22.2 at 33.3 cm and 24.6 at 40 cm [l.s.d. (P=0.05)=1.5]. The mean number of tubers per plant was significantly higher from plantings of whole seed (8.0-9.1) than from Cut or Run grade seed [6.8-7.1, 1.s.d. (P=0.05)=0.4] and was increased significantly by increasing the within row spacings from 25 to 33.3 or 40 cm.

scholarly journals DAMPAK APLIKASI MULSA DAN GENERASI UMBI BIBIT (G2, G3, LOKAL) PADA TANAMAN KENTANG (Solanum tuberosum LINN)

BUANA SAINS ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 153
Author(s):  
Ester Ruchama Jella ◽  
Agus Suryanto ◽  
Lilik Setyobudi
Keyword(s):  
Seed Tuber ◽  
Block Design ◽  
Growth And Yield ◽  
Potato Tubers ◽  
Plastic Mulch ◽  
Local Data ◽  
Seed Tubers ◽  
Randomized Block Design ◽  
Black Plastic ◽  
The Impact

Sub-optimal environment condition and the use of low-quality seed tubers is a constraint to increase the yield of potato tubers. The purpose of this study was to determine the impact of the various applications of mulch and seed tuber G2, G3, local on growth and yield of potato tubers, as well as to temperature and soil moisture. The research was conducted in June-December, 2013 in the highlands (2232.66 m asl) in Village Ranupani, District Senduro, Lumajang, East Java Province. A randomized block design was used with a combination of treatments: without mulch (tm), black plastic mulch silver (mphp), blue plastic mulch (mpb), Chromolaena odorata mulch (mCo) and the mother bulb G2, G3, local. There are 12 combinations of treatment was repeated 3 times. The combination of these treatments consist of: tm+G2, mphp+G2, mpb+G2, mCo+G2, tm+G3, mphp+G3, mpb+G3, mCo+G3, tm+local, mphp+local, mpb+local, mCo+local. Data were analyzed using the F test with a level of 5%. If a significantly different among treatment followed by LSD test 5%. The results showed the use mphp on local seed tubers are able to provide growth and potato tubers yield optimum is 641.76 g plant-1 ( 21.39 t ha-1) compared to other treatments, but the tuber yield did not differ significantly with the use mpb in seed tubers G2.

scholarly journals Selection and RAPD analysis of Pseudomonas ssp. isolates able to improve biological viability of potato seed tubers

Genetika ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. 237-249 ◽  
Author(s):  
Dobrivoj Postic ◽  
Mira Starovic ◽  
Tatjana Popovic ◽  
Predrag Bosnic ◽  
Aleksandra Stanojkovic-Sebic ◽  
...  
Keyword(s):  
Rapd Analysis ◽  
Red Clover ◽  
Potato Seed ◽  
Potato Tubers ◽  
Positive Effects ◽  
Seed Tubers ◽  
Sprouting Capacity ◽  
Important Variety ◽  
Molecular Comparison ◽  
The Mean

Indoleacetic acid (IAA) producing Pseudomonas isolates from the rhizosphere of maize (Q4 and Q20), alfalfa (Q1 and Q16) and wild red clover (B25) were selected for the investigation of their effect on the biological vitality of the potato seed tubers. The production of IAA ranged from 4.09 to 15.9 ? gmL- 1 after 24h of cultivation and 4.08 to 26.4 ? gmL-1 after 48h of cultivation. The molecular comparison by RAPD analysis also was done. RAPD patterns of selected Pseudomonas spp. isolates obtained by BC318, AF14, SPH 1 and AP 10 primers demonstrated the suitability of RAPD method in distinguishing a high variability among the four isolates (44 to 68%). The effect on the biological viability of potato (industrially important variety Pirol) was observed during the seven weeks of sprouting at the temperature of 18-20?C. Potato tubers treated by the selected isolates formed slightly lower number of sprouts, but statistically higher mean length - up to 129.9% higher than the control. The mean sprouting capacity was 64.5% higher than a control. Obtained results suggested positive effects of selected IAA producing Pseudomonas isolates on the length of potato tubers and sprouting capacity as the parameters which define biological viability.

Effect of mechanical and chemical seed treatments on the number and size of seed tubers and yield of potatoes

1984 ◽  
Vol 103 (3) ◽  
pp. 487-495 ◽  
Author(s):  
H. S. Sekhon ◽  
M. Singh
Keyword(s):  
Adverse Effect ◽  
Seed Size ◽  
Seed Yield ◽  
Field Experiments ◽  
Dormant Seed ◽  
Seed Rate ◽  
Seed Tubers ◽  
Thiourea Solution ◽  
Whole Seed ◽  
Cut Seed

SummaryField experiments to study the effect of pre-sprouting, cutting seed and seed soaking in plant regulators on the number and size of seed tubers and yield of potatoes were conducted during the autumn crop seasons of 1978–9 to 1980–1. At the same seed rate, cut seed produced significantly more sprouts and stems, seed-size tubers and seed yield than the whole seed without affecting the aggregate yield. Similar effects were recorded with soaking whole non-dormant tubers in 10 mg GA 3/1 solution for 15 min before planting. Soaking whole non-dormant seed in 0·5% thiourea solution for 1 h increased the number of sprouts and seed-size tubers, giving increases in seed yield of 2·26, 2·73 and 2·65 t/ha over soaking seed in water in the three consecutive years. The corresponding increases in aggregate yield were 1·79, 1·48 and 1·60 t/ha. Soaking cut seed in solutions of 10 mg GA 3/1 and 0·5% thiourea singly or in combination had an adverse effect on the yield of potatoes.

scholarly journals The Effect of Hotel Development on Sustainable Tourism Development

2017 ◽  
Vol 8 (4) ◽  
pp. 16
Author(s):  
Ra’ed Masa’deh ◽  
Mohammed Abdullah Nasseef ◽  
Mohammd Suliman ◽  
Monther Albawab
Keyword(s):  
Positive Impact ◽  
Economic Impacts ◽  
Sustainable Tourism ◽  
Tourism Development ◽  
Economic Benefits ◽  
Tax Revenue ◽  
Sustainable Tourism Development ◽  
Significant Difference ◽  
The Impact

This study aims to examine the impact of hotel development (using the variables of positive social and cultural impacts, negative cultural & economic impacts, negative social impacts, community centered economic benefits, positive environmental impacts, government’s environment management, positive economic impacts, long-term planning, community development & involvement, amenities development & quality tourism experiences, and local prices & tax revenue) on sustainable tourism development at Aqaba hotels located in Jordan. A total of 170 questionnaire containing 44 items was used to collect information from the respondents. Simple regression, T-test, and ANOVA analyses were conducted to test the research hypotheses. Results of the current study revealed that there is a significant positive impact of hotel development on sustainable tourism development. Also, the results revealed that there is no significant difference in the impact of hotel development on sustainable tourism development that can be attributed to gender. Also, results indicated that there are no significant differences in the impact hotel development on sustainable tourism development in favor of age, educational level, personal income, work position, and hotel classification.

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