Rhizoctonia Disease of Potato: Effect on Yield and Control by Seed Tuber Treatment

Plant Disease ◽  
1982 ◽  
Vol 66 (1) ◽  
pp. 815 ◽  
Author(s):  
A. R. Weinhold
Keyword(s):  
Seed Tuber ◽  
Rhizoctonia Disease ◽  
Effect On Yield ◽  
And Control ◽  
Tuber Treatment

scholarly journals 537 PB 043 ROWCOVER AND BLACK PLASTIC MULCH EFFECTS ON TOMATO PRODUCTIONS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 508d-508
Author(s):  
Ibrahim G. Rubeiz ◽  
Marlene M. Freiwat
Keyword(s):  
Air Temperature ◽  
Total Yield ◽  
Fruit Size ◽  
Plastic Mulch ◽  
Fruit Setting ◽  
Negative Effect ◽  
Black Plastic ◽  
Effect On Yield ◽  
Yield Time ◽  
And Control

Tomato cv. Alwadi were grown under floating rowcover, black plastic mulch, mulch plus rowcover, or no protection i.e. control, for studying the effect on yield in terms of earliness, total yield and average fruit size. Early yield was significantly increased by the mulch treatment while the rowcover treatment yielded the least (P < 0.05). Total yield was increased by the mulch and mulch plus rowcover treatments, while the rowover and control treatments yielded the least (P < 0.05). Soil temperature at 10 cm depth varied between 1° to 2°C only under the different treatments. Air temperature under the rowcover exceeded 35 to 40°C on many days, hence causing fruit setting problems and resulting in reduced early yield under the rowcover. Our results show that earliness is enhanced by black plastic mulch, while the rowcover alone can have a negative effect on yield. Time of rowcover removal above the mulch warrants further research.

scholarly journals INFLUENCE OF GIBBERELLIC ACID AND FUNGICIDE EXPERIMENTS ON YIELD, QUALITY AND DISEASE CONTROL OF `CHENIN BLANC' GRAPES IN -SOUTHEAST TEXAS.

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 852f-852
Author(s):  
Iva Suzanne Wilson ◽  
George Ray McEachern ◽  
J Dan Hanna
Keyword(s):  
Gibberellic Acid ◽  
Disease Control ◽  
Southeast Texas ◽  
Yield Quality ◽  
Bunch Rot ◽  
Effect On Yield ◽  
And Control ◽  
Chenin Blanc

Gibberellic acid and fungicide experiments were conducted in 1988 and 1989 to examine their effect on yield, quality and disease control of 'Chenin Blanc' grapes in Southeast Texas. Gibberellic acid applied 7 and 14 days prior to bloom at 2.5 and 5.0 ppm reduced the number of berries per cluster in 1988 and 1989. The 2.5 ppm rate reduced berries and increased yield. The GA treatments also reduced bunch rot at harvest. Benomyl + Manzate fungicide treatments were superior to Nova and control in reducing bunch rot.

Effect of Seed Tuber Treatment in Controlling Late Blight of Potato

2003 ◽  
Vol 2 (3) ◽  
pp. 157-160
Author(s):  
M.M. Rahman ◽  
K.M. Khalequzzaman . ◽  
T.K. Day . ◽  
M.A. Rahman . ◽  
Md. Kalim Uddin .
Keyword(s):  
Late Blight ◽  
Seed Tuber ◽  
Tuber Treatment ◽  
Late Blight Of Potato

scholarly journals Influence of green manuring and organic sources of nutrient application on scented rice (Oryza sativa) - linseed (Linum usitatissimum) cropping system

2018 ◽  
Author(s):  
K. Thakuria ◽  
C. Thakuria
Keyword(s):  
Residual Effect ◽  
Cropping System ◽  
Residual Effects ◽  
Control Treatment ◽  
Yield Attributes ◽  
Nutrient Contents ◽  
Green Manuring ◽  
Effect On Yield ◽  
Major Nutrients ◽  
And Control

A field experiment was carried out during kharif, 2012 to summer, 2013 under rainfed condition in the organic block of Assam Agricultural University, Jorhat to find out the effect of different green manuring practices and other organic sources of nutrient on productivity of scented (joha) rice and their residual effect on linseed crop. Results revealed that though green manuring practice had no significant effect on yield and yield attributes of both scented (joha) rice and succeeding relayed linseed crop but higher values were recorded with the incorporation of dhaincha as in-situ green manuring in respect of all the yield attributes and yield of both the main and succeeding crops. Among various organic sources of nutrient, application of enriched compost produced the highest yield in both scented rice as well as linseed crop. The increase in grain yield of scented rice with enriched compost over the other sources of organic nutrient and control treatment ranged from 7.33 to 30.04 per cent. The corresponding increase in case of linseed crop ranged from 29.1 to 39.8 per cent which reflected better residual effects of both the sources of nutrient on linseed crop. The residual available nutrient contents in soil after harvest of linseed crop showed similar trends and increased all the major nutrients over their initial status.

scholarly journals Effect on Yield and Incidence of Blossom-end Rot of Foliar Application of Calcium Products on Tomato Cultivated in Saline Conditions

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 475E-475
Author(s):  
J.A. Franco ◽  
P.J. Pérez-Saura ◽  
A. Durán
Keyword(s):  
Foliar Application ◽  
Saline Water ◽  
Calcium Nitrate ◽  
Randomized Design ◽  
Significant Difference ◽  
Blossom End Rot ◽  
Total Free Amino Acids ◽  
The Difference ◽  
Effect On Yield ◽  
And Control

The appearance of blossom-end rot (BER) in tomato is related to a decrease in the absorption and translocation of Ca due to excessive salinity in the soil solution. An experiment was conducted to investigate the effects of calcium nitrate (NT), EDTA-Ca (ED) and Aminoquelant-Ca (AQ)—a product containing Ca, B and protein hydrolisate—on the yield and incidence of BER when applied to the leaves of tomato (Lycopersicon esculentum Mill. `Durinta') grown in the open with a drip irrigation using saline water from a well (mean ECw 5.2 dS·m–1). The three calcium treatments and control were replicated four times, with 12 plants per replication, in a completely randomized design. Although yield per plant was higher with AQ, the difference was not statistically significant. Fewer fruit were affected by BER after treatment with ED and AQ than with NT and in the control. Leaf Ca concentration did not differ significantly between treatments. However, leaf B concentration was higher after treatment with AQ. Fruit Ca and B concentrations did not differ significantly in any treatment. The total free amino acids content in leaves was higher after AQ treatment than in the other treatments and control, although no significant difference was observed between the treatments in the fruit.

scholarly journals ASSESSMENT OF THE IMPACT OF VERMICOMPOST AND PEAT EXTRACTS ON NUTRIENT ACCUMULATION IN TUBERS AND POTATO YIELD

2018 ◽  
Author(s):  
Lidija VOJEVODA ◽  
Anita OSVALDE ◽  
Gunta ČEKSTERE ◽  
Andis KARLSONS
Keyword(s):  
Field Experiments ◽  
Foliar Application ◽  
Seed Tuber ◽  
Solanum Tuberosum L ◽  
Foliar Spray ◽  
Mineral Nutrient ◽  
Research Centre ◽  
Potato Tubers ◽  
The Impact ◽  
Tuber Treatment

Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.

scholarly journals Growth and dry matter partitioning of potato influenced by paclobutrazol applied to seed tuber

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Fernanda Ferreira de Araújo ◽  
Mirelle Nayana De Sousa Santos ◽  
Nícolas Oliveira de Araújo ◽  
Tania Pires da Silva ◽  
Lucas Cavalcante Costa ◽  
...  
Keyword(s):  
Dry Matter ◽  
Management Practices ◽  
Seed Tuber ◽  
Starch Content ◽  
Dry Mass ◽  
Total Production ◽  
Dry Matter Partitioning ◽  
Potato Plants ◽  
Sprouted Seeds ◽  
And Control

Under cultivation conditions that favor the growth of plant shoot, the adoption of management practices that reduce the size of potato plants can be an alternative to increase the yield of tubers. The objective of this work was to evaluate the effect of paclobutrazol on vegetative growth and dry matter partitioning of the potato plant cv. Markies cultivated under summer conditions in the state of Minas Gerais. Treatments were 0.1, 1.0, 10 and 100 mg L-1 of paclobutrazol (PBZ) applied to the sprouted seeds before planting and control with water. PBZ was efficient in reducing plant height. PBZ treatments at doses 10 and 100 mg L-1 delayed the emergence of shoots and the beginning of plant tuberization. PBZ at 0.1 mg L-1 reduced the lengh of the stem by 18%, but did not differ from the control in relation to fresh and dry mass content, total production, specific gravity and starch content of tubers. Treatment of seed potatoes with PBZ a 0.1 mg L-1 resulted in smaller, more compact plants, which could be suitable for more densely planted in order to maximize plant population and increase economic return per unit of area.

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