Potential yields of industrial sweetpotatoes using cut seed pieces planted at various dates

2016 ◽  
pp. 79-88
Author(s):  
J.R. Schultheis ◽  
N.A. George ◽  
K.V. Pecota ◽  
W.B. Thompson ◽  
G.C. Yencho
Keyword(s):  
Cut Seed

EFFECTS OF TEMPERATURE AND SEED TUBER BUD POSITION ON SHOOT EMERGENCE OF THE POTATO CULTIVARS JEMSEG AND CONESTOGA

1987 ◽  
Vol 67 (2) ◽  
pp. 599-603 ◽  
Author(s):  
A. W. McKEOWN
Keyword(s):  
Seed Tuber ◽  
Potato Cultivars ◽  
Seed Tubers ◽  
Solatium Tuberosum ◽  
Delayed Emergence ◽  
Early Maturing ◽  
Basal Portion ◽  
Bud Position ◽  
Effects Of Temperature ◽  
Cut Seed

Shoots of the early-maturing potato (Solatium tuberosum L.) cultivar Jemseg often do not emerge uniformly when cut seed pieces are planted in cold soil. Under controlled temperatures of 10, 15 and 20 °C, shoots from whole tubers and basal portions of Jemseg tubers emerged later than those from apical portions of seed tubers. The delayed emergence of the basal portion was most pronounced at low temperatures and ranged from 5 to 17 d. Emergence from basal vs. apical portions of Conestoga was delayed by 10 d at 10 °C and by 4 d at 15 °C, only when seed tubers with a single dominant apical sprout were used. There was no delay at 20 °C. The variable time to emergence of shoots in the field can be explained by delayed emergence from basal buds on cut seed pieces.Key words: Potato, cultivars, emergence, bud position, temperature, seed tuber

Fungicide Seed Treatment Improves Performance of Single-Drop Whole and Cut Seed Potatoes

2021 ◽  
Vol 98 (4) ◽  
pp. 315-327
Author(s):  
Kasia M. Duellman ◽  
William J. Price ◽  
Melinda A. Lent ◽  
Christy L. Christian ◽  
Melissa C. Bertram ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Single Drop ◽  
Seed Potatoes ◽  
Cut Seed

scholarly journals Practical method for germination of Araucaria angustifolia (Bert.) O. Ktze. seeds

2003 ◽  
Vol 60 (2) ◽  
pp. 389-391 ◽  
Author(s):  
Milene Moreira-Souza ◽  
Elke Jurandy Bran Nogueira Cardoso
Keyword(s):  
Experimental Design ◽  
Seed Germination ◽  
Practical Method ◽  
Araucaria Angustifolia ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Whole Seed ◽  
Cut Seed ◽  
Fungal Contaminants

The germination of seeds of Araucaria angustifolia (Brazilian Pine) is generally a slow and fastidious process that causes loss of many seeds because of the incidence of pathogens. The objective of this study was to evaluate whether seeds with cut edges present greater germination percentages or precocity when compared to untreated, normal seeds. The experimental design was completely randomized design with 100 pre-cut and 100 non-treated seeds. The experiment was installed twice, in 1998 and 1999, from fresh seeds. Pre-cut seed germination was higher: 92 and 95% respectively, whereas whole seed germination was 60 and 64% in the two experiments. Seedlings originated from pre-cut seeds were uniform and showed less fungal contaminants.

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 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 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.

Storage of cut seed vs. whole seed

1929 ◽  
Vol 6 (2) ◽  
pp. 42-44
Author(s):  
John S. Gardner
Keyword(s):  
Whole Seed ◽  
Cut Seed

scholarly journals 388 EFFECTS OF DEHAULMING ON CANOPY GROWTH AND TUBER YIELD OF `YUKON GOLD'

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 486f-486
Author(s):  
James A. Okeyo ◽  
Ronald D. Morse
Keyword(s):  
Apical Dominance ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Ground Level ◽  
Potato Plants ◽  
Seed Tubers ◽  
Tuber Bulking ◽  
Field Emergence ◽  
Cut Seed ◽  
Bulking Rate

Seed tubers of `Yukon Gold' (Solanum tuberosum L.) exhibit strong apical dominance, resulting in relatively poor stem emergence. Cutting seed tubers to overcome apical dominance in `Yukon Gold' results in irregular, uneven stem emergence. In 1992 and 1993, experiments were conducted to evaluate the effects of dehaulming (excising stems to ground level after field emergence) whole, cross- and longitudinal-cut seed tubers of `Yukon Gold' on canopy growth and tuber yield. For all seed piece types, dehaulming during the first week of field emergence produced uniform plant stands and increased yields of U.S. no. 1 tubers by 16 and 42% and large tubers (> 6.4 cm dia.) by 340 and 64% in 1992 and 1993, respectively. Our data indicate that tuber bulking rate was increased by dehaulming. The possible causes and implications of increased tuber bulking rates in dehaulmed potato plants are discussed.

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