Production of Seedling Tubers Derived from True Potato Seed and Their Use as Seed Tubers in the Sudan

1996 ◽  
Vol 32 (4) ◽  
pp. 419-426
Author(s):  
S. M. El-Amin ◽  
B. Adam ◽  
E. Varis ◽  
E. Pehu
Keyword(s):  
Growing Season ◽  
Potato Seed ◽  
True Potato Seed ◽  
Soil Mixture ◽  
Seed Tubers ◽  
The Mean

SUMMARYSeedling tubers of three true potato seed (TPS) crosses raised in a seedbed soil mixture of clay, sand and dry leaves produced about 3.1 kg of seedling tubers m−2 in the growing season of 1988–89 and between 4.3 and 5.1 kg m−2 in 1989/90. The seedling tubers produced were stored and their use as seed tubers was subsequently compared with the locally popular variety Alpha. The mean tuber yields of the hybrids ranged between 9.4 and 11 t ha−1 in 1990/91 and between 21.9 and 22.9 t ha−1 in 1991/92. Mean tuber yields of cultivar Alpha were 14.3 t ha−1 in 1990/91 and 24.1 t ha−1 in 1991/92, showing that tuber yields comparable to those of imported seed tubers could be obtained from seedling tubers of TPS origin.

Production of Seedling Tubers Derived from True Potato Seed and Their Use as Seed Tubers in the Sudan

1996 ◽  
Vol 32 (4) ◽  
pp. 419-426
Author(s):  
S. M. El-Amin ◽  
B. Adam ◽  
E. Varis ◽  
E. Pehu
Keyword(s):  
Growing Season ◽  
Potato Seed ◽  
True Potato Seed ◽  
Soil Mixture ◽  
Seed Tubers ◽  
The Mean

SUMMARYSeedling tubers of three true potato seed (TPS) crosses raised in a seedbed soil mixture of clay, sand and dry leaves produced about 3.1 kg of seedling tubers m−2 in the growing season of 1988–89 and between 4.3 and 5.1 kg m−2 in 1989/90. The seedling tubers produced were stored and their use as seed tubers was subsequently compared with the locally popular variety Alpha. The mean tuber yields of the hybrids ranged between 9.4 and 11 t ha−1 in 1990/91 and between 21.9 and 22.9 t ha−1 in 1991/92. Mean tuber yields of cultivar Alpha were 14.3 t ha−1 in 1990/91 and 24.1 t ha−1 in 1991/92, showing that tuber yields comparable to those of imported seed tubers could be obtained from seedling tubers of TPS origin.

Effect of altering the physiological age of potato seed-tubers in the fall on subsequent production in a short-season environment

1992 ◽  
Vol 72 (1) ◽  
pp. 275-287 ◽  
Author(s):  
N. Richard Knowles ◽  
Gabor I. Botar
Keyword(s):  
Plant Growth ◽  
Harvest Index ◽  
Seed Tuber ◽  
Growing Season ◽  
Russet Burbank ◽  
Physiological Age ◽  
Quadratic Model ◽  
Tuber Quality ◽  
Potato Seed ◽  
Seed Tubers

The efficacy of utilizing "controlled seed-tuber aging" as a technique to enhance yield and improve tuber quality in areas with relatively short growing seasons was investigated in a 3-yr study. Prior to planting in the field, five physiological ages of Russet Burbank, Carlton, Norchip and Superior seed-tubers were produced by varying the heat-unit accumulation over a 200-d storage interval. Total yield increases of up to 90% and substantial improvements in tuber grade were achieved by planting aged (600–900 degree-day (dd)) seed-tubers. Plant growth from aged Russet Burbank seed-tubers was modelled to identify the mechanisms by which yield and quality were altered. Growth analysis demonstrated that the age-induced yield increases were due to faster emergence, faster leaf-area establishment, and tuberization earlier in the growing season compared with that from younger seed-tubers. The annual life cycle was thus accelerated, allowing plants from older seed-tubers to utilize the short (120-d) growing season more efficiently than those from younger seed-tubers. This was reflected in a higher harvest index: plants from 739 dd seed-tubers partitioned 63% of their total fresh weight into tubers compared with 48% for those from 66 dd seed-tubers (based on the quadratic model describing the relationship between seed-tuber age and and harvest index at 121 d after planting). The technique appears to be very promising for enhancing yield and/or promoting ’earliness’ of potatoes in regions with short growing seasons.Key words: Solanum tuberosum, seed-tuber age, plant growth, yield

scholarly journals Technological need of True Potato Seed (TPS) growers of Tripura

2019 ◽  
Vol 38 (4) ◽  
Author(s):  
Dipak Nath ◽  
Subhra Shil
Keyword(s):  
Plant Protection ◽  
Fertilizer Application ◽  
Potato Seed ◽  
True Potato Seed ◽  
Effective Management ◽  
Protection Measures ◽  
Suitable Alternative ◽  
Pests And Diseases ◽  
Seed Tubers ◽  
The Cost

The study was conducted in Khowai district of Tripura with randomly selected True Potato Seed (TPS) growers. TPS can serve as a great alternative to the seed tubers in the hilly state of Tripura as only 100 g TPS is needed for one ha. of land as compared to nearly 2 tones of seed tubers required to plant in the same area. TPS can be used as a suitable alternative technology of potato cultivation in the state to improve the productivity and reduce the cost of production. The technological need of the majority of the TPS growers, i.e., 87.50 per cent was plant protection measures with rank I. The other technological need observed were post harvest treatment (79.17 %) which includes application of boric acid, sorting and grading, packing, curing etc. and method of fertilizer application (76.67 %) with II and III rank respectively. So, it is utmost necessary that the agricultural extension workers through regular trainings on plant protection measures with the TPS growers should guide the farmers to get optimum yield per unit area by effective management of pests and diseases.

A method of producing seed tubers from true potato seed

1986 ◽  
Vol 29 (2) ◽  
pp. 225-237 ◽  
Author(s):  
S. G. Wiersema
Keyword(s):  
Potato Seed ◽  
True Potato Seed ◽  
Seed Tubers

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 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.

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