scholarly journals Estimation of Heterosis Among Potato (Solanum tuberosum L.) Crosses in Ethiopia

2021 ◽  
Vol 8 (02) ◽  
pp. 110-123
Author(s):  
Manamno Workayehu ◽  
Wassu Mohammed ◽  
Tesfaye Abebe
Keyword(s):  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Hybrid Vigor ◽  
Lattice Design ◽  
Breeding Schemes ◽  
Superior Genotypes ◽  
Standard Heterosis ◽  
High Yielding Varieties ◽  
Growth Characters

Determination of heterosis in tetraploid potato crosses is necessary for identification of superior genotypes for variety development or breeding program. However, producing heterotic potato genotypes through local crossing is not a common practice in Ethiopia. Hence, this study was conducted to estimate the magnitude of better, and standard check heteroses in potato clones that are produced from local crossing. This will help identify potential of hybrid for future breeding schemes. Heterosis of 75 clones were evaluated using a 9 x 9 Simple Lattice design. Results of the analysis of variance showed significant differences for all the growth characters, except medium-sized tubers and specific gravity of tuber. These results indicate the presence of genetic variability among the samples. The clones exhibited as high as 55.62 and 58.31 t.ha-1 marketable and total tuber yield, respectively. These clones also displayed mid, better parent and standard heterosis of 118.8%, 90.5% and 239.1%, respectively, for marketable tuber yield. This result indicates the presence of high magnitude heterosis which could be used to exploit the hybrid vigor. In addition, mid, better parent, and standard check heterosis were estimated at 79.36%, 61.04% and 209.17% for total tuber yield, respectively. Our results show the highest chance of getting heterotic offspring than parental and standard check varieties to developing new potato varieties.  The information generated from this study would be valuable for researchers who intend to develop high-yielding varieties of potato

scholarly journals Tuber yield and nutrient balance of potato (Solanum tuberosum L.) Cultivation as influenced by different nutrients management under AEZ-28

2015 ◽  
Vol 39 (4) ◽  
pp. 641-659
Author(s):  
MAHS Jahan ◽  
MAR Sarkar ◽  
NCD Barma ◽  
MNA Mondal ◽  
MNS Ferdousi
Keyword(s):  
Nutrient Management ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Management Practice ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Nutrient Balance ◽  
Research Centre ◽  
Gross Margin ◽  
Randomized Complete Block Design

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

scholarly journals Non-Parametric Stability Analysis of Tuber Yield in Potato (Solanum tuberosum L.) Genotypes

2018 ◽  
Vol 10 (28) ◽  
pp. 50-63
Author(s):  
mina moghaddaszadeh ◽  
Rasool Asghari Zakaria ◽  
Davoud Hassanpanah ◽  
naser zare ◽  
◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Stability Analysis ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Parametric Stability ◽  
Non Parametric

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
Keyword(s):  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Medium Size ◽  
Tuber Weight ◽  
Potato Varieties ◽  
Straw Mulch ◽  
Crop Varieties ◽  
Randomized Complete Block Design ◽  
Benefit Cost

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.

scholarly journals Effects of Time of Earthing Up on Yield and Yield Parameters of Irish Potato (Solanum Tuberosum L.) in Zaka District, Zimbabwe

2020 ◽  
Vol 1 (1) ◽  
pp. p39
Author(s):  
Nyasha Sakadzo ◽  
Fortune Tafirenyika ◽  
Kasirayi Makaza
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Smallholder Farmers ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Tuber Quality ◽  
Marketable Tuber ◽  
Yield Parameters ◽  
Plant Emergence ◽  
Four Levels

Potato (Solanum tuberosum L) is a strategic national food security crop in that can be used as a supplement for carbohydrates. It is the fastest growing staple food crop and source of income for poor smallholder farmers. There is limited documentation on effects of earthing up irish potatoes on yield and yield components in Zimbabwe. A field experiment was conducted in Zaka district of Masvingo province in Zimbabwe during the 2018/19 cropping season. The aim of the study was to investigate the effect of time of earthing up on yield and yield parameters of BP1 potato variety. The treatments consisted of four levels of time of earthing up (no earthing up (control), three, four and five weeks after plant emergence), replicated three times on a Randomized Complete Block Design (RCBD). Results on earthing-up at three weeks recorded significantly (P<0.013) the highest total tuber yield (21.97 t ha-1) which is 10% higher compared to no earthing up which recorded 14.43 t ha-1. Moreover, earthing up at two weeks had the least number of greening tuber yield (3%), 11% pest damaged tuber yield, 6% unmarketable tuber yield and 45% marketable tuber yield. This is in contrast with no earthing up which recorded 91% greening tuber yield, 25.3% on pest damaged tubers, 59% on unmarketable tubers and 10% marketable tuber yield. Based on the results, first earthing up should be done at three weeks after complete plant emergence at the study area under rain fed conditions for the production of potatoes with improved yield and better tuber quality.

scholarly journals Effects of nitrogen on yield and chlorophyll of potato (Solanum tuberosum L.) cultivars

1970 ◽  
Vol 38 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Semiha Güler
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Total Yield ◽  
Correlation Coefficients ◽  
Tuber Number ◽  
Tuber Weight ◽  
Nitrogen Rate ◽  
Leaf Chlorophyll ◽  
Nitrogen Rates

Effects of nitrogen on the leaf chlorophyll (chl), yield and yield attributing characters of potato as tuber number and mean tuber weight were studied. Correlation coefficients between the investigated characters were determined. Five nitrogen rates (0, 150, 200, 250 and 300 kg/ha) and four potato cultivars (Burren, Slaney, Anna and Emma) were used in the study. First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chl were significantly influenced by both nitrogen rate and cultivar, whereas mean tuber weight was affected only by cultivar. Maximum total yield was obtained at 200 kg N/ha. There was significant linear relationship between leaf chl and N applied (R2=0.91). There were significant correlations between chl and yield and yield related characters. Total yield significantly correlated with leaf chl. Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant.   Key words: Potato; Solanum tuberosum L.; Leaf chlorophyll; Nitrogen; Yield DOI: 10.3329/bjb.v38i2.5141 Bangladesh J. Bot. 38(2): 163-169, 2009 (December)  

scholarly journals Total phenol content of different varieties of brinjal (Solanum melongena L.) and potato (Solanum tuberosum L.) growing in Bangladesh

2013 ◽  
Vol 42 (1) ◽  
pp. 175-177
Author(s):  
Nazma Shaheen ◽  
Ali Abbas Mohammad Kurshed ◽  
Kazi Muhammad Rezaul Karim ◽  
Md Mohiduzzaman ◽  
Cadi Parvin Banu ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Solanum Melongena ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Fresh Weight ◽  
Dietary Antioxidant ◽  
Significant Difference ◽  
High Yielding Varieties

The total phenol content (TPC) of different varieties of Solanum melongena L. varied from 3.16 ± 0.04 - 7.86 ± 0.33 mg GAE/g of fresh weight (FW). It also revealed that all varieties of Solanum tuberosum L. with peel contained higher TPC than without peel. Comparison between mean TPC of different varieties Solanum tuberosum L. with and without peel on FW basis by independent sample the t-test showed a significant difference (p = 0.003) in TPC. Findings of present study indicate that BARI Begun-8, high yielding varieties of Solanum melongena and Solanum tuberosum with peel are good sources of polyphenols and therefore may contribute as a source of dietary antioxidant. DOI: http://dx.doi.org/10.3329/bjb.v42i1.15909 Bangladesh J. Bot. 42(1): 175-177, 2013 (June)

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