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.

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 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)

Transmission of Helminthosporium solani from potato seed tubers and effects of soil conditions, seed inoculum and seed physiology on silver scurf disease

1995 ◽  
Vol 124 (2) ◽  
pp. 219-234 ◽  
Author(s):  
D. M. Firman ◽  
E. J. Allen
Keyword(s):  
Weight Loss ◽  
Field Experiments ◽  
Soil Conditions ◽  
Potato Seed ◽  
Silver Scurf ◽  
Moisture Regime ◽  
Helminthosporium Solani ◽  
Seed Tubers ◽  
Soil Moisture Regime ◽  
One Year

SUMMARYThe transmission of silver scurf (Helminthosporium solani) disease of potatoes was examined in field experiments at Cambridge University Farm in 1988–90. Treatment factors examined were seed size, seed age, seed incubation, soil moisture regime and planting date. A laboratory experiment investigated the viability of conidia of Helminthosporium in soil stored under different conditions.Incubation of seed at high humidity before planting increased sporulation of Helminthosporium on seed tubers after planting and fewer conidia were produced from small seed than from larger seed. Delay in planting caused more rapid growth of Helminthosporium on seed tubers after planting.Early planting and late harvesting increased the severity of silver scurf on progeny tubers. Severity of silver scurf was also increased by ageing seed and by incubating seed. Weight loss of potato tubers during storage tended to be greater from treatments with most severe silver scurf in all years but a significant linear regression of weight loss on silver scurf severity was found in only one year out of three from a late harvest. The viability of conidia added to soil was found to decrease rapidly so that by 10 weeks after addition, < 1% of conidia were apparently viable.

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

scholarly journals EFFECT OF SOLAR RADIATION INTENSITY ON THE VEGETATIVE GROWTH AND YIELD OF COFFEE

1969 ◽  
Vol 26 (4) ◽  
pp. 73-90
Author(s):  
J. Guiscafré Arrillaga ◽  
Luis A. Gómez
Keyword(s):  
Soil Moisture ◽  
Relative Humidity ◽  
Solar Radiation ◽  
Ecological Factors ◽  
The Other ◽  
Growth And Yield ◽  
Full Sunlight ◽  
Solar Radiation Intensity ◽  
Yearly Average ◽  
One Year

Tn this study, four ecological factors were observed: solar radiation, air temperature, relative humidity and soil moisture. Of the four, solar radiation fluctuates more than any other and undoubtedly the other threefactors are influenced by solar radiation to a great extent. 1—Solar radiation varies widely with season and year. 2—The greatest intensity takes place during the months of June to September and the lowest from November to February. 3—The greatest intensity recorded under full sunlight was 1.91 gr. cal./ min./ cm.2 and the lowest was 1.35 gr. cal./ min./ cm.2. 4—The yearly average solar radiation under full sunlight was 144,754. 40 gr. cal./ cm.2. 5—The cumulative radiation for the 3 years that lasted the experiment was 434,263.20 gr. cal./ cm.2, under full sunlight. 6—Shade regulates solar radiation making it more uniform from one year to the other. 7-As solar radiation increases, growth and yield of coffee decrease. 8—Yield, and growth of coffee were definitely higher under 1/2 and 1/3 than under 2/3 and full sunlight. 9—Statistically significant differences in yield, were not found between plots with 1/2 and 1/3 sunlight. Growth was significantly higher under 1/3 exposure. 10—Radiation, produces distinctive formative effects on coffee. Plants under full sunlight were very weak, chlorotie and poorly developed. 11—Four ecological factors were measured: solar radiation, temperature, relative humidity and soil moisture. All are affected by radiation to a great extent, but other factors as vegetation have also some effect. 12—Solar radiation is negatively correlated with yields and growth. 13—Growth and yields are positively correlated. As expected low temperature and yield are associated and soil moisture acts independently in relation to growth. 14—Plants under full sunlight accumulated greater amounts of nitrogen and potash and to a less extent of phosphorous than under any other exposure. 15—An average of 53,143.20 gram calories per square centimeter per year is the optimum cumulative solar radiation for yield and growth of coffee. This amount is obtainable under natural shade of Guaba trees (Inga Inga) planted at not less than 16 x 16 feet.

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.

Effects of date of planting on growth and yield of contrasting potato varieties in Pembrokeshire

1977 ◽  
Vol 89 (3) ◽  
pp. 711-735 ◽  
Author(s):  
E. J. Allen
Keyword(s):  
Seed Tuber ◽  
Leaf Growth ◽  
The Other ◽  
Growth And Yield ◽  
Physiological Age ◽  
Early Variety ◽  
Potato Varieties ◽  
One Year ◽  
Classification Of Varieties ◽  
Young Seed

SummaryFour experiments over 2 years which examined the effects of date of planting (from mid-March to early May) on the growth and yield of early, second early and maincrop potato varieties are described. In two experiments the seed used was physiologically old (heavily sprouted) and in the other two experiments relatively young seed (limited sprout development) was used. In the early variety, Home Guard, tuber yield at maturity was unaffected by delay in planting when physiologically old seed was used but increased leaf area and higher tuber yields resulted from later planting of younger seed. With both types of seed the maincrop varieties, Desirée and Maria Piper, produced larger leaf areas from later planting in one year but smaller leaf areas in the other year. In both years with both types of seed, tuber yields at the end of August were higher from the earlier plantings of these varieties. The physiologically young seed of Red Craig's Royal behaved in a similar manner to the maincrop varieties and the physiologically old seed behaved in a similar way to Home Guard.Any yield advantages of early varieties over maincrop varieties from any date of planting were small and short-lived and the physiological reasons for differences between varieties are discussed in the light of these results. It is suggested that the current classification of varieties is unjustified and that variety testing should take more account of the effects of physiological age.Tuber yields from the maincrop varieties were very high (60·80 t/ha) and this is attributed to the synchrony of leaf growth and increasing light receipts which may be readily achieved in the mild springs of W. Wales.

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

scholarly journals Growth and yield performance of different generations of seed potato as affected by PVY and PLRV

1970 ◽  
Vol 35 (1) ◽  
pp. 37-50 ◽  
Author(s):  
MS Rahman ◽  
AM Akanda ◽  
IH Mian ◽  
MKA Bhuian ◽  
MR Karim
Keyword(s):  
First Generation ◽  
Second Generation ◽  
Tuber Yield ◽  
Growth Yield ◽  
Growth And Yield ◽  
Potato Seed ◽  
Yield Performance ◽  
Potato Plants ◽  
Seed Tubers ◽  
Fifth Generation

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

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