Age of potato seed tubers affects growth and yield

1963 ◽  
Vol 40 (1) ◽  
pp. 25-29 ◽  
Author(s):  
Kojiro Kawakami
1964 ◽  
Vol 62 (1) ◽  
pp. 55-57 ◽  
Author(s):  
J. L. Beveridge ◽  
F. Hanley ◽  
R. H. Jarvis

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.


1976 ◽  
Vol 19 (2) ◽  
pp. 147-155 ◽  
Author(s):  
C. E. Quinn ◽  
P. C. Harper ◽  
D. C. Graham

2018 ◽  
Vol 33 (1) ◽  
pp. 9-16
Author(s):  
Nelson D. Geary ◽  
Harlene Hatterman-Valenti ◽  
Gary A. Secor ◽  
Richard K. Zollinger ◽  
Andrew P. Robinson

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.


1966 ◽  
Vol 66 (2) ◽  
pp. 271-276 ◽  
Author(s):  
J. L. Beveridge

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.


1978 ◽  
Vol 26 (4) ◽  
pp. 354-365 ◽  
Author(s):  
J. Marinus ◽  
K.B.A. Bodlaender

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)


1970 ◽  
Vol 35 (1) ◽  
pp. 37-50 ◽  
Author(s):  
MS Rahman ◽  
AM Akanda ◽  
IH Mian ◽  
MKA Bhuian ◽  
MR Karim

Performance of potato seed tubers of first, second, third, fourth, and fifth generations were evaluated against PVY and PLRV. Potato plants grown from first generation seed tubers were free from PVY infection. Incidence of the virus was the minimal at second generation, which increased afterwards steadily by third, fourth, and fifth generations. Incidence of PLRV was minimal at first generation. It increased gradually with the advancement of generation seed tubers showing the highest incidence at fifth generation. The highest plant growth and tuber yield were recorded at second generation, which was followed by third, fourth, and fifth generations. The highest reduction in plant height, tuber number, and tuber yield were recorded in 5th generation due to infection of PVY and PLRV. Keywords: Generation evaluation; PVY; PLRV; growth; yield; potato DOI: 10.3329/bjar.v35i1.5865Bangladesh J. Agril. Res. 35(1) : 37-50, March 2010


1993 ◽  
Vol 89 (2) ◽  
pp. 262-270 ◽  
Author(s):  
G. N. Mohan Kumar ◽  
N. Richard Knowles

1992 ◽  
Vol 119 (1) ◽  
pp. 35-44 ◽  
Author(s):  
D. C. E. Wurr ◽  
J. R. Fellows ◽  
E. J. Allen

SummaryThirty-two experiments examining the effects of the weight and within-row spacing of potato seed tubers on graded tuber yields of five varieties were conducted on eight sites from 1980 to 1985. A complex analysis technique was used to combine these data and estimate the optimum tuber planting densities for different ratios of seed cost to small (40–60 mm) and large (60–80 mm) ware value. The same technique could be applied to any other combination of seed cost, ware size and ware value.The optimum tuber planting density decreased with increasing seed-tuber weight. Differences in optimum planting density between varieties were much greater with small (35 g) than with large (105 g) seed tubers and decreased as the cost of seed increased relative to the value of ware. As large ware became worth more than small ware the influence of increasing seed cost on the optimum density was reduced. As the value of large ware increased, net returns increased and the effect of seed cost on net returns was reduced. Mean tuber size decreased with increasing stem density at harvest and at the same stem density was lower in varieties producing more daughter tubers/stem. Changes of mean tuber size (μ) and the spread of yield across size grades (σ) with time were well described by parallel curves in different varieties. It is suggested that in future it may not be necessary to determine optimum tuber planting densities by complex experiments involving several seed-tuber weights and spacings. Instead μ and σ could be estimated from simple experiments and tuber spacings determined by comparison with control varieties.


2006 ◽  
Vol 6 (4) ◽  
pp. 723-733 ◽  
Author(s):  
Solomon I. Shibairo . ◽  
Paul Demo . ◽  
Jackson N. Kabira . ◽  
Peter Gildemacher . ◽  
Esther Gachango . ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document