Effect of gibberellic acid-3 and 6-benzylaminopurine on dormancy and sprouting of potato (Solanum tuberosum L.) tubers cv. Diacol Capiro

The duration of the dormancy period in tubers is a determining factor in the planning of potato planting and production. The effect of two plant growth regulators on the dormancy period and sprouting of cv. Diacol Capiro tubers was evaluated in this study. The experiment was carried out under storage conditions (15°C and 75% RH) using a completely randomized block design with 3×3×3 factorial arrangement. The factors were: gibberellic acid-3 (GA3) and 6-benzylaminopurine (6BAP) (0, 25, and 50 mg L-1) and the immersion time (iT) (10, 60, and 120 min). The application of GA3 and iT had an effect on dormancy breakage; the treatments with 25 mg L-1 GA3 and 60 min of immersion were enough to reduce dormancy by 18 d (35%) compared to untreated tubers. The factor GA3 increased tuber weight loss (10.2%), generated sprouts with higher weight (25.6-28.4%), higher length growth rate (42.3%), and lower dry matter content (21.8-28.4%), and it increased secondary sprouting (36.2-57.9%) in comparison with untreated tubers. This way, despite the treatments with 25 mg L-1 GA3 reduced the dormancy period, this dose generated sprouts more susceptible to mechanical damage. The treatments with 6BAP did not significantly affect the evaluated variables.

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Quality aspects of pepino dulce fruits in distinct ripening stages, packaging forms and storage conditions

BRAZILIAN JOURNAL OF FOOD TECHNOLOGY ◽

10.1590/1981-6723.30018 ◽

2020 ◽

Vol 23 ◽

Author(s):

Neide Botrel ◽

Raphael Augusto de Castro e Melo

Keyword(s):

Fruit Quality ◽

Block Design ◽

Titratable Acidity ◽

Storage Conditions ◽

Matter Content ◽

Soluble Solids ◽

Small Scale ◽

Dry Matter Content ◽

Ripening Stages ◽

Quality Aspects

Abstract Pepino dulce (Solanum muricatum Aiton) or Pepino has been growing to produce edible, juicy and attractive fruits. The imported fruits and national small scale of Pepino dulce production are currently stored and commercialized under the absence of postharvest handling recommendations. Therefore, this work aimed to evaluate the quality aspects of Pepino dulce fruits in distinct ripening stages, forms of packaging and conditions of storage. The trial was conducted in a 2x2x2 factorial scheme - 2 ripening stages (ripe and immature) x 2 forms of packaging (with and without wrapping in plastic film) x 2 conditions of storage (room: 25 °C ± 2 ºC and 57% ± 5% of relative humidity (RH); cold: under refrigeration 10 °C ± 2 °C and 85% ± 5% of RH) – in a complete randomized block design. Fruit quality attributes, such as vitamin C, chemical and phenolic content, fruit color (mesocarp), firmness, dry matter content, total titratable acidity (TA), total soluble solids and pH, were evaluated. Fruits showed a centesimal composition with low calories and a significant content of potassium (K), phosphorus (P) and magnesium (Mg), which can contribute to the daily supply of these elements. For commercialization purposes, the association of packaging (plastic wrapping film) and refrigerated storage (cold: 10 °C ± 2 °C and 85% ± 5% of RH) to maintain the characteristics of fruit quality after a 15 days period is more important than its individual use.

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Levels of nutrients and grain yield of maize intercropped with signalgrass (Brachiaria) in different arrangements of plants

Planta Daninha ◽

10.1590/s0100-83582015000100006 ◽

2015 ◽

Vol 33 (1) ◽

pp. 49-56 ◽

Cited By ~ 4

Author(s):

M.A.M. FREITAS ◽

D.V. VALADÃO SILVA ◽

M.F. SOUZA ◽

A.A. SILVA ◽

D.T. SARAIVA ◽

...

Keyword(s):

Grain Yield ◽

Field Experiments ◽

Block Design ◽

Matter Content ◽

Seeding Density ◽

Dry Matter Content ◽

Randomized Block Design ◽

Maize Plants ◽

Urochloa Brizantha ◽

Positive Effect

Competition between maize and signalgrass can economically cripple the intercropping by the reduced yield of maize and dry matter content of the forage. In seeking to define plant arrangements which make this system more efficient, this research was held with the objective of assessing the effects of interference of densities of signalgrass (Urochloa Brizantha) on nutrition and on maize grain yield. Two field experiments were conducted in a randomized block design with four replications. Treatments were arranged similarly in both experiments, in a 2 x 4 factorial design, the first factor being the dose of Nicosulfuron herbicide applied (0 and 8 g ha-1) and the second factor being the forage seeding rates (0, 2, 4 and 6 kg of seeds per hectare). The interference of signalgrass reduced foliar nitrogen, potassium and phosphorus content in maize plants intercropped with the forage. Higher values of grain yield were observed with the reduction of the spacing and the application of the recommended herbicide underdose (8 g ha-1). It was concluded that, regardless of the seeding density of U. Brizantha, reducing the maize seeding inter-rows spacing, combined with the application of an underdose of Nicosulfuron, caused a positive effect by reducing the initial forage growth, resulting in less interference of Urochloa brizantha on nutrient uptake by the maize plants and grain yield of the crop.

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The effects of flower removal and earthing up on tuber yield and quality of potato (Solanum tuberosum L.)

Journal of Agricultural Sciences Belgrade ◽

10.2298/jas2102121f ◽

2021 ◽

Vol 66 (2) ◽

pp. 121-137

Author(s):

Fitsum Gebregwergis ◽

Mehari Gebremicheal ◽

Hailay Gebremedhin ◽

Abraha Asefa

Keyword(s):

Solanum Tuberosum ◽

Tuber Yield ◽

Solanum Tuberosum L ◽

Block Design ◽

Matter Content ◽

Tuber Number ◽

Dry Matter Content ◽

Tuber Weight ◽

Yield And Quality

A field experiment was conducted in Eastern Tigray, Ethiopia, during the summer season to determine the effects of flower removal and earthing up time on the tuber yield and quality of potato (Solanum tuberosum L.). The experiment comprised three flower removal stages and five earthing up time treatments, which were laid out in a randomized complete block design (RCBD) of a 5x3 factorial arrangement with three replications. Data collected on tuber yield and quality parameters were analyzed using SAS version 9.2. The interaction of flower removal stages and earthing up time treatments affected marketable and unmarketable tuber number and yield, total tuber number and yield, large-sized tuber weight, and number of large-sized tubers. The medium and small-sized tubers were also affected by main treatments but not by their interaction treatments. Similarly, dry matter content was significantly (p<0.05) affected by flower removal alone, but not by earthing up time and its interaction with flower removal. Generally, the highest marketable tuber yield (30.25 t ha-1), large-sized tuber weight (424.9 g), the number of large-sized tubers (5), and total tuber yield (30.96 t ha-1) were recorded in the treatment of potato flower removed at the bud stage and earthed up at 15 days after complete emergence. Therefore, the removal of potato flowers at the bud stage and earthing up at 15 days after complete emergence and common cultivation can be practiced for better tuber yield and quality of potato.

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Responses of potato (Solanum tuberosum L.) var. Agria to application of bio, bulk and nano-fertilizers

Annales Universitatis Mariae Curie-Sklodowska sectio C – Biologia ◽

10.17951/c.2015.70.2.57 ◽

2016 ◽

Vol 70 (2) ◽

pp. 57

Author(s):

Mohsen Janmohammadi ◽

Naser Sabaghnia ◽

Mojtaba Nouraein ◽

Shahyar Dashti

Keyword(s):

Solanum Tuberosum ◽

Tuber Yield ◽

Solanum Tuberosum L ◽

Starch Content ◽

Block Design ◽

Matter Content ◽

Fertilizer Treatment ◽

Dry Matter Content ◽

Tuber Weight ◽

Food And Nutritional Security

<p>Potato (<em>Solanum tuberosum </em>L.), is one of the important crops grown in the world which is important as food and nutritional security option at the global level. The experiment was laid out as randomized complete block design in three replications with six nutrition treatments consisted of control, NPK, Mog bio-fertilizer, Nano-Ca, Nano-Zn+B and Nano-Com. The treatment-by-trait (TT) biplot analysis was applied to data to examine its usefulness in visualizing relationships among trait as well as treatments and showed that the first two principal components accounted 80% of total variation. Tuber yield, mean tuber diameter, mean tuber weight, tuber weight per plant, starch content of initial fresh, number of tubers per plant, number of leaves and dry matter content were in the same sector, with Nano-Com fertilizer treatment as the best treatment. Based on ideal entry biplot, the Nano-Com treatment is closest to the position of an ideal treatment and it is ranked the highest in term of morphological performance. Also, the best fertilizer treatment for obtaining of high tuber yield could be found as Nano-Com treatment following Nano-Zn+B treatment. The studied nanofertilizers showed a good potential compared to the commercial bulk and bio fertilizers.</p>

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Evaluation of Quality Parameters of Seven Processing Type Potato (Solanum tuberosum L.) Cultivars in the Eastern Sub-Himalayan Plains

Foods ◽

10.3390/foods10051138 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1138

Author(s):

Santanu Das ◽

Biplab Mitra ◽

Asok Saha ◽

Somnath Mandal ◽

Prodyut Kumar Paul ◽

...

Keyword(s):

Specific Gravity ◽

Dry Matter ◽

West Bengal ◽

Solanum Tuberosum L ◽

Starch Content ◽

Block Design ◽

Potato Cultivar ◽

Quality Parameters ◽

Matter Content ◽

Dry Matter Content

The eastern sub-Himalayan plain of India is a popular potato growing belt in which vast scope exists to introduce processing grade cultivars. The selection and introduction of a better quality processing grade cultivar in this region may pave the way for the processing industries. Keeping these in the backdrop, this study was conducted at Instructional Farm of Uttar Banga Krishi Viswavidyalaya (UBKV), Pundibari, Cooch Behar, West Bengal, India under eastern sub-Himalayan plains during winter seasons of 2016–17 and 2017–18 in which seven processing type potato cultivars (Kufri Chipsona-1, Kufri Chipsona-3, Kufri Chipsona-4, Kufri Frysona, Kufri Himsona, Kufri Surya and Kufri Chandramukhi) were evaluated in terms of different quality parameters pre-requisite for chips processing viz., dry matter content, specific gravity, starch content, chips colour score, crispiness and hardness of chips through randomised complete block design (RCBD). The study revealed wide variation in all quality parameters amongst the cultivars. Cultivar ‘Kufri Frysona’ showed the highest specific gravity (1.121) as well as dry matter content (23.35%) followed by ‘Kufri Chipsona-3’. The cultivar ‘Kufri Frysona’ showed the highest starch content (28.52%) too. Chips prepared from ‘Kufri Chipsona-1’ were recorded to be crispier with a relatively lower value of deformation before the first break and less hardness value. All processing type potato cultivar reflected the chips colour score <3 (evaluated, based on 1–10 scale, 10 being the darkest and least desirable) though ‘Kufri Frysona’ had the lowest chips colour score (1.50) signifying its superiority for the region. ‘Kufri Frysona’ cultivation could be recommended in this agro-climatic region particularly for chips manufacturing potato industries.

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Nopalea cactus pear fertilized with nitrogen: morphometric, productive and nutritional characteristics

Acta Scientiarum Animal Sciences ◽

10.4025/actascianimsci.v40i1.38325 ◽

2018 ◽

Vol 40 (1) ◽

pp. 38325

Author(s):

João Ricardo Avelar Leite ◽

Eleuza Clarete Junqueira de Sales ◽

Flávio Pinto Monção ◽

Adriano De Souza Guimarães ◽

João Paulo Sampaio Rigueira ◽

...

Keyword(s):

Dry Matter ◽

Block Design ◽

Matter Content ◽

Dry Matter Content ◽

Morphometric Characteristics ◽

Cactus Pear ◽

Randomized Block Design ◽

Green Matter ◽

Nutritional Characteristics ◽

Dry Conditions

This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p > 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The application of nitrogen fertilizer, in the dry conditions and doses evaluated, did not affect the production of green matter (PGM, p = 0.56), dry matter (PDM, p = 0.74) and dry matter content (DM, p = 0.72), with averages of 276 t ha-1, 43.2 t ha-1 and 15.7%, respectively. The increase of the nitrogen doses does not improve the majority of the morphometric characteristics or the dry matter yield of the cactus pear cv. Miúda at 730 days after planting.

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Site Specific Nutrient Management in Potato Through Nutrient Omission Plot Technique

Journal of AgriSearch ◽

10.21921/jas.v6i02.18098 ◽

2020 ◽

Vol 6 (02) ◽

Author(s):

S. K. YADAV ◽

R. K. SINGH ◽

S. K. SINGH ◽

SARALA YADAV ◽

RAHUL R. BAKADE

Keyword(s):

Nutrient Management ◽

Block Design ◽

Maximum Yield ◽

Dry Weight ◽

Matter Content ◽

Recommended Dose ◽

Yield Reduction ◽

Dry Matter Content ◽

Randomized Block Design ◽

Phosphorus And Potassium

A field experiment was conducted during four consecutive winter seasons from 2013-14 to 2016-17 at Patna, Bihar under sandy clay loam soil. The trial on potato was laid out in randomized block design with four replications with objective to develop nutrient omission plot technique in potato. The highest plant height and number of shoot per plant were recorded under 150% recommended dose of fertilizer of NPK. The range of dry matter content in potato tuber varied from 16.1 to 17.7% on dry weight basis. The maximum yield of smallest tuber (0-25g) was recorded under 150% recommended dose of fertilizer of NPK, which was at par to all the nutritional treatments and significantly superior over absolute control plot. The maximum yield of medium, large and very large size tuber was recorded under 150% recommended dose of fertilizer of NPK. However, 150% recommended dose of fertilizers of NPK recorded about 13% higher net return over 100% recommended dose of fertilizers of NPK. The maximum yield reduction was observed in the omitted plot without nitrogen among other nutrients like phosphorus and potassium. Hence, nitrogen was one of the most limiting nutrients for tuber yield of potato.

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The yield potential and chemical analysis of some introduction sweet cultivars in the Papua highlands

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/911/1/012038 ◽

2021 ◽

Vol 911 (1) ◽

pp. 012038

Author(s):

Syafruddin Kadir ◽

Herniwati

Keyword(s):

Chemical Analysis ◽

Sweet Potato ◽

Dry Matter ◽

Block Design ◽

Matter Content ◽

Yield Potential ◽

Dry Matter Content ◽

Consumer Responses ◽

Randomized Block Design ◽

Β Carotene

Abstract The research aims to identify the adaptability some Cilembu sweet potato clones in the highland region of Papua and to determine consumer responses to sweet potato clones Cilembu. The activities carried out in Jayawijaya and Yahukimo. The experiment were 10 cultivars / clones of yams consisting of 6 (six) clones Cilembu and four (4) local sweet potato clones of each: UP-UM 1 (V1), UP-UM 4 (V2), UP-UM 5 (V3), UP-UM 6 (V4), UP-UM 9 (V5), Rancung (V6), Papua Salosa (V7), Helaleke (V8), Cangkuang (V9), and Weayuken (V10). The experiment were conducted on two districts with a height above sea level (asl) different namely Jayawijaya (1550 m asl) and Yakuhimo (2000 m). Assessment was laid out using a randomized block design (RBD) with three replications. The assessment results in districts Jayawijaya shows that, clones Cilembu UP-UM1, UP-UM 5, UP-UM 6, UP-UM 9, and Rancung, as well as varieties lonkal Papua Salosa compounds containing β-carotene / Antocianin shown from yellow / orange / purple. In the district of Jayawijaya, average tuber longest and largest bulb diameter produced by local variety Cangkuang. But the number of tubers were generated by clones Cilembu UP-UM 5. Productivity and highs of 10 varieties / clones were studied both in Jayawiya and Yakohimo is Cangkuang (23.59 t / ha), while the highest dry matter content produced by clone up- UM 4. Production of dry matter produced by the highest Weayuken varieties. The results of the chemical analysis of the highest protein content produced by clone UP-6 and UP-UM UM 9; The highest content of starch and amylose varieties produced by Cangkuang; The highest content of reducing sugar produced by clone UP-6 and UP-UM UM 9; The highest content of β-carotene produced by UP-UM 5; and the highest content of vitamin C is produced by UP-UM 6.

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Effect of Harvesting Time, Curing and Storage Methods on Storability of Garlic Bulbs

The Open Biotechnology Journal ◽

10.2174/1874070702115010036 ◽

2021 ◽

Vol 15 (1) ◽

pp. 36-45

Author(s):

Bizuayehu Desta ◽

Kebede Woldetsadik ◽

Wassu M. Ali

Keyword(s):

Block Design ◽

Storage Conditions ◽

Matter Content ◽

Postharvest Quality ◽

Dry Matter Content ◽

Ambient Storage ◽

Excess Production ◽

Storage Methods ◽

And Storage ◽

Bulb Yield

Background: Farmers are forced to store garlic bulbs for a long period due to occasional excess production or to save bulb seeds for next season planting, but the bulbs often lose their viability and vigour due to sprouting ahead of planting time. Objective: The research was conducted to evaluate the effects of three harvest stages (60, 80, and 100% top fall), two curing levels (non-cured and cured bulbs), and three storage methods (floor, shelf, and net bag) on storability of garlic variety ‘Tseday’ at Haramaya University, and Tony farm (Dire Dawa) during 2014-15. Methods: The experiment was laid out in a Randomized Complete Block Design with three replications at both sites. Results: Significant variations in the storability of bulbs were evident due to harvest stages, curing, and storage methods. Harvesting of garlic bulbs at 100% top fall considerably increased bulb yield by about 16.74% and 8.75% compared to 60 and 80% top fall, respectively. Cured bulbs showed lower fresh bulb yield as compared to non-cured bulbs. Harvesting at 80% top fall, curing and storing bulbs on a shelf or in a net bag showed reduced weight and diameter loss of bulbs as compared to the other treatments. Bulbs harvested at 80% top fall and cured had significantly higher dry matter content than the rest. The highest sprouting percentage was recorded for 60% top fall harvested and non-cured bulbs, while the least was observed in 80% top fall harvested and cured bulbs. Conclusion: The result of this study has shown that harvesting at 80% top fall, curing, and storing bulbs on a shelf or in a net bag leads to a good yield and postharvest quality and effective storability of garlic bulbs under ambient storage conditions.

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Genetic parameters for drought-tolerance in cassava

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2015000300007 ◽

2015 ◽

Vol 50 (3) ◽

pp. 233-241 ◽

Cited By ~ 12

Author(s):

Eder Jorge de Oliveira ◽

Saulo de Tarso Aidar ◽

Carolina Viana Morgante ◽

Agnaldo Rodrigues de Melo Chaves ◽

Jailson Lopez Cruz ◽

...

Keyword(s):

Genetic Parameters ◽

Environmental Influence ◽

Block Design ◽

Matter Content ◽

Dry Matter Content ◽

Storage Roots ◽

Genetic Gains ◽

Selection Strategies ◽

Randomized Block Design ◽

Root Dry Matter Content

The objective of this work was to evaluate the effect of drought on genetic parameters and breeding values of cassava. The experiments were carried out in a completely randomized block design with three replicates, under field conditions with (WD) or without (FI) water deficit. Yield of storage roots (RoY), shoot (ShY), and starch (StY), as well as the number of roots (NR), and root dry matter content (DMC) were evaluated in 47 cassava accessions. Significant differences were observed among accessions; according to heritability, these differences had mostly a genetic nature. Heritability estimates for genotypic effects () ranged from 0.25±0.12 (NR) to 0.60±0.18 (DMC), and from 0.51±0.17 (NR) to 0.80±0.21 (RoY and StY) for WD and FI, respectively, as a consequence of greater environmental influence on WD. Selective accuracy was lower in WD, and ranged from 0.71 (NR) to 0.89 (RoY, DMC, and StY). However, genetic gains were quite high and ranged from 24.43% (DMC) to 113.41% (StY), in WD, and from 8.5% (DMC) to 75.70% (StY) in FI. These genetic parameters may be useful for defining which selection strategies, breeding methods, and experimental designs are more suitable to obtain cassava genetic gains for tolerance to drought.

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