scholarly journals Performance of potato (Solanum tuberosum L.) varieties with and without straw-mulch at Shankharapur, Kathmandu, Nepal

2020 ◽  
Vol 3 (2) ◽  
pp. 193-204
Author(s):  
Kalyani Shrestha ◽  
Shrawan Kumar Sah ◽  
Reeti Singh ◽  
Yam Narayan Devkota

The suitability of crop varieties in a particular location determines the productivity of crops. A field experiment was conducted from February to May 2020 at Shankharapur, Kathmandu, Nepal to evaluate the growth and productivity of potato varieties with and without mulch. Five potato varieties (Cardinal, Janakdev, Khumal Bikas, MS- 42.3, Panauti Local) were evaluated under straw-mulch and no-mulch conditions. The treatments were arranged in two factorial Randomized Complete Block Design (RCBD) with 3 replications. The results revealed that the highest tuber yield was produced by Janakdev (34.29 t ha-1) followed by Panauti Local (29.52 t ha-1). Similarly, straw-mulch gave higher yield (25.9 t ha-1) as compared with no mulch condition (21.73 t ha-1). The higher tuber yield in the Janakdev and Panauti Local was because of higher tuber weight per hill, higher number and weight of medium size (50 -100 g) and oversize (> 100 g) tuber per hill. Similarly, higher yield in straw mulch was due to higher number and weight of tuber per hill. Higher gross return, net return was observed and the benefit cost ratioin varieties Janakdev (4.08) and Panauti Local (3.53) and rice straw mulch (2.88). Therefore, potato varieties Janakdev and Panauti Local with straw mulch are most suitable for Kathmandu like climate for improving productivity and profitability.

2015 ◽  
Vol 39 (4) ◽  
pp. 641-659
Author(s):  
MAHS Jahan ◽  
MAR Sarkar ◽  
NCD Barma ◽  
MNA Mondal ◽  
MNS Ferdousi

A field experiment was conducted at Regional Wheat Research Centre of the Bangladesh Agricultural Research Institute, Joydebpur, Gazipur for 2 consecutive years during 2006-07 and 2007-08. The objectives were to find out the optimum nutrient management practice on tuber yield, nutrient balance and economics of potato cultivation. Twelve nutrient management treatments were tested in a randomized complete block design with 3 replications. Treatments were T1=HYG (0-198-44-194-24-6-1.2), T2=MYG (0-140-34-138-18-4.5-0.9), T3=IPNS (10000-168-38-170-18-6-1.2), T4=STB (0-171-40-164-22-5-1), T5=FP (0-97-16-91-0-0-0), T6=CON (0-0-0-0-0-0-0), T7=HYG+CRI, T8=MYG+CRI, T9=IPNS+CRI, T10=STB+CRI, T11=FP+CRI, T12=CON+CRI kg ha-1 CDNPKSZnB for potato. The highest tuber yield of potato was obtained from STB+CRI (27.64 t ha-1) followed by IPNS+CRI (27.35 t ha-1), STB (27.10 t ha-1), IPNS (26.83 t ha-1), HYG+CRI (26.52 t ha-1) and HYG (26.10 t ha-1) in 2006- 07. Similar trend was found in 2007-08. The highest tuber yield and yield contributing parameters were noticed in CRI plots than without CRI. Except N, remaining nutrient balance like P K S Zn and B were found positive in case of HYG, MYG, IPNS and STB along with or without CRI nutrient managements. The balance was found almost negative in case of FP and CON. The highest BCR was observed in STB+CRI (3.96) followed by STB (3.93), IPNS+CRI (3.76), and IPNS (3.74). The higher gross return (Tk. 283331 ha-1) and also gross margin (Tk. 211761 ha-1) was observed from the same treatment. DOI: http://dx.doi.org/10.3329/bjar.v39i4.22544 Bangladesh J. Agril. Res. 39(4): 641-659, December 2014


2021 ◽  
Vol 66 (2) ◽  
pp. 121-137
Author(s):  
Fitsum Gebregwergis ◽  
Mehari Gebremicheal ◽  
Hailay Gebremedhin ◽  
Abraha Asefa

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.


Author(s):  
T. Raghunandan ◽  
J. P. Collis ◽  
S. Saravanan ◽  
K. S. Barman

The experiment was carried out at Experimental field, Department of Horticulture, Sam Higginbottom Institute of Agriculture Technology and Sciences [formerly known as Allahabad Agriculture Institute Deemed University, AAI-DU] during the Spring season 2014-2015. The experiment consists of Thirteen treatments viz., (T0) Control-RDF (100:120:100 N P K  kg ha-1,), (T1) 75% RDF + AZ@ 2.5 kg ha-1,, (T2) 75% RDF + FYM @ 10 ton ha-1, (T3) 75% RDF + VC@ 10 ton ha-1, (T4) 75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 ton ha-1+VC @ 10 ton ha-1, (T5) 50% RDF +AZ@ 2.5 kg ha-1, (T6) 50% RDF + FYM@ 10 ton ha-1, (T7) 50% RDF + VC@ 10 ton ha-1, (T8) 50% RDF +  AZ @ 2.5 kg ha-1+FYM @ 10 ton ha-1+VC @ 10 ton ha-1, (T9) 25% RDF + AZ@ 2.5 kg ha-1, (T10) 25% RDF + FYM@ 10 ton ha-1, (T11) 25% RDF + VC@ 10 ton ha-1+, (T12) 25% RDF +  AZ @ 2.5 kg ha-1+FYM @ 10 ton ha-1+VC @ 10 ton ha-1. The treatments were replicated thrice in a Randomized Complete Block Design. The results revealed that Plants treated with 75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 t/ha +VC @ 10 t/ha (T4) significantly recorded maximum vegetative and Tuber yield attributes like plant height (91.87 cm), plant spread (92.38 cm), Number of Branches per plant (7.27), number of leaves per plant (26.53), number of tubers per plant (4.80), maximum tuber weight (958.53) and Maximum tuber yield per plant was recorded in T4 (75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 t/ha +VC @ 10 t/ha) (43.33g) followed by T3 (75% RDF + VC @ 10 t/ha) (40.95g).


Author(s):  
Mohsen Janmohammadi ◽  
Naser Sabaghnia ◽  
Mojtaba Nouraein ◽  
Shahyar Dashti

<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>


2019 ◽  
Vol 37 (1) ◽  
pp. 95-100 ◽  
Author(s):  
Giovani Olegario da Silva ◽  
Arione da S Pereira ◽  
Agnaldo DF Carvalho ◽  
Fernanda Q Azevedo

ABSTRACT The objective of this research was to evaluate advanced potato clones for tuber yield, frying quality, plant vigor, and maturity, grown from minituber seeds, and to assess correlations between these traits. Eight advanced potato clones of Embrapa Potato Breeding Program (F11-09-03, F05-11-03, F54-11-06, F141-11-01, C2718-12-09, C2718-24-09, C2743-09-09, and CL308) and three commercial cultivars (Agata, Asterix and BRSIPR Bel) were evaluated. Experiments were carried out in autumn 2017, in Canoinhas-SC and Pelotas-RS. A randomized complete block design with four replicates was used. We used tuber seeds type IV (minibubers). We evaluated plant vigor, maturity, yield and number of marketable tubers, yield and number of total tubers, average tuber weight, specific gravity, and frying color. Individual and joint variance analyses revealed significant differences (p <0.05) among genotypes for all traits at both locations. The GxE (genotype x environment) interaction was significant for all traits. For the two locations together, clones F05-11-03, C2718-12-09, C2718-24-09 and the control cultivar BRSIPR Bel showed higher marketable tuber yields. The first two clones also showed tubers with high average tuber weight. Clone F54-11-06 showed the later maturity at both locations. Regarding the frying quality characteristics, only clone F141-11-01 showed a pattern comparable to that of the control cultivar Asterix. Also, clones with higher plant vigor had higher tuber yield, but late maturity. Frying quality traits were not correlated between them and among other traits.


2018 ◽  
Vol 36 (2) ◽  
pp. 265-270
Author(s):  
Giovani O Silva ◽  
Arione S Pereira ◽  
Fernanda Q Azevedo ◽  
Agnaldo DF Carvalho

ABSTRACT Potato genotypes were evaluated in their performance, according to the genotype values for tuber yield traits. The experiments were carried out in Canoinhas and Pelotas, Brazil, in spring 2014. Eleven advanced clones and two commercial cultivars (Agata and Asterix) (check cultivars) were evaluated. A randomized complete block design with four replicates was used. Plots were harvested 110 days after planting, and evaluated for tuber yield components. The data were submitted to joint deviance analyzes using the REML/BLUP method. Clones F102-22-07 and F32-02-06 stood out positively for tuber yield. F102-22-07 showed high marketable tuber yield and average tuber weight, while clone F32-02-06 exhibited high marketable and total tuber yield. The superiority of these advanced clones in relation to the check cultivars, suggests their potential to be evaluated in other environments, aiming their release as new cultivars.


2019 ◽  
Vol 39 (4) ◽  
pp. 343
Author(s):  
Setareh Foroghian ◽  
Mohammad Reza Asgharipour ◽  
Mehdi Ghiafeh Davoodi

In order to study the yield and yield components of two potato cultivars, an experiment was conducted as a split plot based on a randomized complete block design with three replicates. The experiment was performed in two locations, Jolgeh-Rokh district, and Fariman city, in professional farmers’ fields in Khoarasan Razavi province. The main plots consisted of two potato cultivars, Agria and Fontane cultivars (medium maturing), which were identified as the main cultivars used in chips production factories in the Province. Our results showed higher potential of Agria cultivar for production of stems per plant compared to Fontana cultivar. Both stem number and tuber number per plant along with tuber weight and tuber yield were higher in Fariman location than in Jolgeh-Rokh.


2021 ◽  
Author(s):  
Alexandre Congera ◽  
ANJANAPPA M. ◽  
INDIRESH K.M. ◽  
BASAVARAJA P.K. ◽  
MUNIRAJAPPA R.

Abstract Studies on effect of organic, inorganic and bio-fertilizers on yield and quality attributes of potato (Solanum tuberosum L.) variety Kufri Jyoti, comprising of 10 different treatments using randomized complete block design with three replications were conducted at Post Graduate Centre, University of Horticultural Sciences, Campus, Gandhi Krishi Vignana Kendra, Bangalore during Rabi 2011. Application of 50% RDF + 50% FYM + Azotobacter + Phosphobacteria (T7) showed significantly maximum number of tubers per plant (7.87), tuber yield per plant (363.33 g plant− 1) and tuber yield per hectare (34.13 t ha− 1). This treatment also produced maximum tuber dry matter (21.67%), starch content (78.20%) non-reducing sugars (0.84%) and total sugars (1.74%) which were on par with T3, T4 and T6 during rabi 2011.


2020 ◽  
Vol 7 (03) ◽  
pp. 113-121
Author(s):  
M. T. Islam ◽  
M. M. Hossain ◽  
M.A.R. Rana ◽  
M.M. Rahman

Potato stolon and tuber number are the most important determinants of yield and these traits are associated with planting time and genotype. This study was conducted to evaluate plant growth, tuber yield contributing traits and tuber yield of potato genotypes in two planting dates. The experiment was done in randomized complete block design with three replications. Results showed that plant growth and traits that contribute to tuber yield of potato were significantly influenced by planting dates and genotypes. Stolon and tuber number as well as tuber weight were periodically investigated. It was observed that the performance of those traits were always higher in 23rd November planting. Different genotypes performed differently on all the studied parameters. Among the genotypes tested, G1 (AC 10069) produced the highest number of stolons, tubers, tuber weight, length and yield of tuber as compared to the check variety. It was observed that 23rd November planted G1 (AC 10069) gave the highest tuber yield (17.79 t.ha-1) which was statistically similar with G3 (AC 10110) (17.00 t.ha-1) when compared to the check variety. It can be concluded that planting time as well as genotype are the critical factors that determine potato yield.


2020 ◽  
Vol 5 (1) ◽  
pp. 63-74
Author(s):  
Lemma Tessema ◽  
Wassu Mohammed ◽  
Tesfaye Abebe

AbstractA field experiment was conducted in the central highlands of Ethiopia to evaluate the performance of potato varieties for tuber yield and to identify a superior variety in tuber yield and yield components. The experiment was laid out in a randomized complete block design with three replications at two locations in the central highlands of Ethiopia during the 2017 main cropping season. The results of analysis of variance (ANOVA) showed the presence of highly significant (P<0.01) differences among varieties over all traits studied. The mean squares for location were also significant in indicating the influence of environments on the traits of the studied varieties. However, the interaction between variety and environment had no significant effect on the performances of the potato varieties to attain 50% flowering, specific gravity and dry matter content indicating a similar performance of these traits across all locations. The variety Belete produced the maximum total tuber yield of 32.8 t ha -1 and marketable tuber yield of 29.1 t ha-1. Conversely, farmers` variety Nech Abeba produced the minimum total tuber yield of 13.8 t ha-1 and marketable tuber yield of 8.4 t ha-1. For most tuber quality traits, viz., tuber specific gravity, dry matter content, starch percentage and total starch yield, varieties Belete and Menagesha were the maximum and minimum producers, respectively. Thus, it could be concluded that varietal and environmental variations as well as their interaction had considerable influence on tuber yield and the potato’s attributes.


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