Effect of fumigation of potato seed tubers with 2-aminobutane on plant growth and yield

1976 ◽  
Vol 19 (2) ◽  
pp. 147-155 ◽  
Author(s):  
C. E. Quinn ◽  
P. C. Harper ◽  
D. C. Graham
Keyword(s):  
Plant Growth ◽  
Growth And Yield ◽  
Potato Seed ◽  
Seed Tubers

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

The effects of consolidating the soil beneath potato seed tubers and of inter-row grubbing on the growth and yield of the crop

1964 ◽  
Vol 62 (1) ◽  
pp. 55-57 ◽  
Author(s):  
J. L. Beveridge ◽  
F. Hanley ◽  
R. H. Jarvis
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Moisture Content ◽  
Total Weight ◽  
Growth And Yield ◽  
Potato Seed ◽  
Planting Time ◽  
Seed Tubers

1. Three experiments designed to investigate the effects of consolidation and aeration of soil beneath potato seed tubers before planting, and inter-row grubbing after planting, on the growth and yield of potatoes are described and the results discussed.2. Consolidation of furrows beneath seed tubers by tractor wheels at planting had no effect on total weight of ware-size tubers produced but increased the weight of mis-shapen waresize tubers. It is argued that this effect was related to soil moisture content and tilth at planting time.

scholarly journals Effect of PLRV infected seed tuber on disease incidence, plant growth and yield parameters of potato

1970 ◽  
Vol 35 (3) ◽  
pp. 359-366 ◽  
Author(s):  
MS Rahman ◽  
AM Akanda
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
Tuber Yield ◽  
Disease Incidence ◽  
Growth And Yield ◽  
Tuber Number ◽  
Insect Vector ◽  
Stem Number ◽  
Infected Seed ◽  
Seed Tubers

An investigation was conducted to find out the effect of PLRV infected seed tubers on disease incidence, plant growth, and tuber yield of potato. The levels of PLRV infected seed tubers were 0, 10, 20, 33, and 100%. Presence of PLRV infected tubers at 20% and higher rate caused significant increase in disease incidence and reduction in plant height, stem number, tuber number, and tuber yield as compared to that in control. Incidence of PLRV in the experimental fields, reduction in plant height, stem number, tuber number, and tuber weight per hill was positively and linearly correlated with levels of their inoculum. Spraying of Nimbicidine against insect vector did not show significant influence on plant growth and tuber yield.Keywords: Inoculum levels; disease incidence; PLRV; insecticide; growth and yield performance; potato.DOI: 10.3329/bjar.v35i3.6441Bangladesh J. Agril. Res.35(3) : 359-366

Involvement of auxin in the loss of apical dominance and plant growth potential accompanying aging of potato seed tubers

1993 ◽  
Vol 71 (4) ◽  
pp. 541-550 ◽  
Author(s):  
G. N. M. Kumar ◽  
N. Richard Knowles
Keyword(s):  
Plant Growth ◽  
Apical Dominance ◽  
Specific Activity ◽  
Tissue Concentration ◽  
Growth Potential ◽  
Potato Seed ◽  
Naphthaleneacetic Acid ◽  
Seed Tubers ◽  
Correlative Inhibition ◽  
Aged Seed

Studies were conducted to further characterize a role for auxin in the loss of apical dominance and plant growth potential that occurs during long-term storage of potato (Solanum tuberosum L.) seed tubers. Treatment of single-eye seed cores from 18-month-old seed tubers with 1-naphthaleneacetic acid (NAA) restored apical dominance and increased dry matter partitioning to roots, stems, and leaves, thus partially mitigating the deleterious effects of advanced seed-tuber age on growth potential. Conversely, NAA treatment of seed cores from 6-month-old tubers substantially inhibited plant growth. In contrast to NAA, IAA was totally ineffective at counteracting the deleterious effects of advanced tuber age on plant growth, whereas the effect of IAA on overall growth of plants from 6-month-old seed cores remained slightly inhibitory. The difference in efficacy of these two auxins appears to be related to age-induced differences in ability of tissues to transport and catabolize IAA. The specific activity of IAA oxidase (IAAox) was 4 times higher in tissue from 20-month-old seed tubers at planting and increased at a faster rate during sprouting compared with that from 8-month-old tubers. Hence, the higher potential for oxidation of IAA in tissue from older seed cores is well correlated with the inability of this auxin to alter growth. In translocation studies, etiolated sprouts from aged seed tubers showed a reduced ability to translocate [1-14C]IAA basipetally compared with those from younger tubers. Moreover, intact etiolated sprouts growing from older seed cores decarboxylated the radiolabeled IAA at a much faster rate on a dry weight basis than those from younger seed cores. The specific activities of IAAox and peroxidase in the sprout apex, sprout base, and tuber tissue from 18-month-old seed cores were substantially higher than in similar tissues from 6-month-old seed cores, and tissue concentration of the radiolabel was negatively correlated with IAAox activity. Hence, aging of potato seed tubers not only reduces the ability of sprouts to transport auxin basipetally, but it also increases the capacity for auxin catabolism during sprouting. The physiological consequence of this may be the release of lateral meristems from correlative inhibition, and in effect, reduced apical dominance and shoot growth potential during plant establishment from aged seed tubers. Key words: potato, age-reduced vigor, sprouting, apical dominance, auxin.

Response of ‘Russet Burbank’ Seed Tubers Containing Dicamba and Glyphosate

2018 ◽  
Vol 33 (1) ◽  
pp. 9-16
Author(s):  
Nelson D. Geary ◽  
Harlene Hatterman-Valenti ◽  
Gary A. Secor ◽  
Richard K. Zollinger ◽  
Andrew P. Robinson
Keyword(s):  
Tuber Yield ◽  
Total Yield ◽  
Russet Burbank ◽  
Growth And Yield ◽  
Tuber Initiation ◽  
Yield Potential ◽  
Potato Seed ◽  
Marketable Yield ◽  
Seed Tubers ◽  
Mother Plants

AbstractIncreased use of dicamba and/or glyphosate in dicamba/glyphosate-tolerant soybean might affect many sensitive crops, including potato. The objective of this study was to determine the growth and yield of ‘Russet Burbank’ potato grown from seed tubers (generation 2) from mother plants (generation 1) treated with dicamba (4, 20, and 99 g ae ha−1), glyphosate (8, 40, and 197 g ae ha−1), or a combination of dicamba and glyphosate during tuber initiation. Generation 2 tubers were planted near Oakes and Inkster, ND, in 2016 and 2017, at the same research farm where the generation 1 tubers were grown the previous year. Treatment with 99 g ha−1dicamba, 197 g ha−1glyphosate, or 99 g ha−1dicamba + 197 g ha−1glyphosate caused emergence of generation 2 plants to be reduced by up to 84%, 86%, and 87%, respectively, at 5 wk after planting. Total tuber yield of generation 2 was reduced up to 67%, 55%, and 68% when 99 g ha−1dicamba, 197 g ha−1glyphosate, or 99 g ha−1dicamba + 197 g ha−1glyphosate was applied to generation 1 plants, respectively. At each site year, 197 g ha−1glyphosate reduced total yield and marketable yield, while 99 g ha−1dicamba reduced total yield and marketable yield in some site-years. This study confirms that exposure to glyphosate and dicamba of potato grown for potato seed tubers can negatively affect the growth and yield potential of the subsequently grown daughter generation.

The effects of delayed planting and soil consolidation on potato yields

1966 ◽  
Vol 66 (2) ◽  
pp. 271-276 ◽  
Author(s):  
J. L. Beveridge
Keyword(s):  
Soil Moisture Content ◽  
Delay Period ◽  
The Other ◽  
Growth And Yield ◽  
Potato Seed ◽  
Soil Consolidation ◽  
Seed Tubers ◽  
Series Of Experiments ◽  
Potato Yields ◽  
One Year

1. Two series of experiments designed to investigate the effects of delaying planting potato seed tubers after drawing ridges in preparation for planting and of consolidation of soil beneath seed tubers on the growth and yield of potatoes are described and the results discussed.2. Delayed planting reduced the yield of saleable ware-size (> I¾ in.) tubers in one year by as much as 1.7 + 0.59 tons/acre, but had little effect in the other years, and it is argued that the effect was dependent on the tilth obtained in preparation for planting, the soil moisture content at the time the ridges were drawn, the amount of moisture lost during the delay period, and the rainfall after planting.

scholarly journals Growth and yield of seed potatoes after application of gibberellic acid to the tubers before planting.

1978 ◽  
Vol 26 (4) ◽  
pp. 354-365 ◽  
Author(s):  
J. Marinus ◽  
K.B.A. Bodlaender
Keyword(s):  
Heat Shock ◽  
Field Experiments ◽  
Seed Tuber ◽  
The Other ◽  
Growth And Yield ◽  
High Yield ◽  
Potato Seed ◽  
Seed Tubers ◽  
Number Of Stems ◽  
Growing Conditions

The influence of GA on growth and yield of potato seed tubers (size 28-45 mm) was studied in field experiments on sandy soil in the late cv. Alpha. Different GA conc. were applied to seed tubers with or without sprouts by both dipping and spraying. The main purpose was to find a more suitable method of preparing seed tubers than the laborious presprouting in light method. This other method would allow mechanical planting, should not be laborious and should give a high yield of seed tubers. The application of GA accelerated emergence. GA also significantly increased the yield of the seed tuber fraction, probably by increasing the number of stems and thus the number of tubers/plant. GA accelerated tuberization, decreased the total tuber yields in one experiment, whereas in the other experiment an increase occurred. The best results were obtained if sprouted tubers were treated and under favourable growing conditions. Spraying was equally effective as dipping also in the 'spraying just before planting' treatment after heat shock. This means that application during mechanical planting seems to be possible, on the understanding that the GA conc. is not too high to prevent the occurrence of phytotoxic effects (45 mg GA/l caused small leaflets with yellow discolouration). The application of GA to seed tubers seems to be attractive especially in slowly emerging cv. or in cv. with a high proportion of large tubers. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Age of potato seed tubers affects growth and yield

1963 ◽  
Vol 40 (1) ◽  
pp. 25-29 ◽  
Author(s):  
Kojiro Kawakami
Keyword(s):  
Growth And Yield ◽  
Potato Seed ◽  
Seed Tubers

Plant growth response from aged potato seed-tubers as affected by meristem selection and NAA

1985 ◽  
Vol 62 (6) ◽  
pp. 289-300 ◽  
Author(s):  
N. Richard Knowles ◽  
W. M. Iritani ◽  
L. D. Weller
Keyword(s):  
Plant Growth ◽  
Growth Response ◽  
Potato Seed ◽  
Seed Tubers ◽  
Plant Growth Response
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