scholarly journals Expressiness of the Main Characters of a New Genotype of White Kidney Bean

2020 ◽  
Vol 77 (2) ◽  
pp. 129
Author(s):  
Ion GHERASE ◽  
Elena BARCANU ◽  
Costel VÎNĂTORU ◽  
Ovidia AGAPIE-DOBRE ◽  
Bianca TĂNASE ◽  
...  
Keyword(s):  
Plant Height ◽  
Quantitative Characteristic ◽  
Strong Relationship ◽  
Leaf Length ◽  
Breeding Program ◽  
Kidney Bean ◽  
Yield Potential ◽  
High Yield ◽  
Yield And Quality ◽  
New Genotype

Currently, in Romania there are just a few autochthonous white kidney bean varieties and this is the main reason why Vegetable Research Development Station (VRDS) Buzau has chosen a breeding program for this species. The aim of this study was to assess the main quantitative characteristic of a new cultivar of kidney beans, ‘Doina’. The correlation matrix showed a strong relationship between plant height and bush diameter and also with leaf length and a negative correlation between plant height and pods mass per plant. The cultivar has a yield potential of over 3000 kg/ha and a compact maturation of the pods, being suitable for mechanized harvesting. An important feature is plant hardiness, due to local genetic resources used in the breeding program. During the research it was found that the variety has a distinct phenotypic expressiveness with a high yield and quality potential.

scholarly journals Enhanced Expression of QTL qLL9/DEP1 Facilitates the Improvement of Leaf Morphology and Grain Yield in Rice

2019 ◽  
Vol 20 (4) ◽  
pp. 866 ◽  
Author(s):  
Xue Fu ◽  
Jing Xu ◽  
Mengyu Zhou ◽  
Minmin Chen ◽  
Lan Shen ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Molecular Design ◽  
Flag Leaf ◽  
Leaf Shape ◽  
Leaf Length ◽  
Yield Potential ◽  
High Yield ◽  
Global Food Security ◽  
Germplasm Collections ◽  
Introgressed Segment

In molecular breeding of super rice, it is essential to isolate the best quantitative trait loci (QTLs) and genes of leaf shape and explore yield potential using large germplasm collections and genetic populations. In this study, a recombinant inbred line (RIL) population was used, which was derived from a cross between the following parental lines: hybrid rice Chunyou84, that is, japonica maintainer line Chunjiang16B (CJ16); and indica restorer line Chunhui 84 (C84) with remarkable leaf morphological differences. QTLs mapping of leaf shape traits was analyzed at the heading stage under different environmental conditions in Hainan (HN) and Hangzhou (HZ). A major QTL qLL9 for leaf length was detected and its function was studied using a population derived from a single residual heterozygote (RH), which was identified in the original population. qLL9 was delimitated to a 16.17 kb region flanked by molecular markers C-1640 and C-1642, which contained three open reading frames (ORFs). We found that the candidate gene for qLL9 is allelic to DEP1 using quantitative real-time polymerase chain reaction (qRT-PCR), sequence comparison, and the clustered regularly interspaced short palindromic repeat-associated Cas9 nuclease (CRISPR/Cas9) genome editing techniques. To identify the effect of qLL9 on yield, leaf shape and grain traits were measured in near isogenic lines (NILs) NIL-qLL9CJ16 and NIL-qLL9C84, as well as a chromosome segment substitution line (CSSL) CSSL-qLL9KASA with a Kasalath introgressed segment covering qLL9 in the Wuyunjing (WYJ) 7 backgrounds. Our results showed that the flag leaf lengths of NIL-qLL9C84 and CSSL-qLL9KASA were significantly different from those of NIL-qLL9CJ16 and WYJ 7, respectively. Compared with NIL-qLL9CJ16, the spike length, grain size, and thousand-grain weight of NIL-qLL9C84 were significantly higher, resulting in a significant increase in yield of 15.08%. Exploring and pyramiding beneficial genes resembling qLL9C84 for super rice breeding could increase both the source (e.g., leaf length and leaf area) and the sink (e.g., yield traits). This study provides a foundation for future investigation of the molecular mechanisms underlying the source–sink balance and high-yield potential of rice, benefiting high-yield molecular design breeding for global food security.

THREE GENERATIONS OF INBREEDING AND S2 FACTORIAL TEST CROSSES IN RED RASPBERRY CULTIVARS

1974 ◽  
Vol 16 (2) ◽  
pp. 419-432 ◽  
Author(s):  
S. O. Fejer ◽  
L. P. S. Spangelo
Keyword(s):  
Plant Height ◽  
Inbreeding Depression ◽  
Breeding Program ◽  
High Yield ◽  
Realized Heritability ◽  
Red Raspberry ◽  
Diallel Crosses ◽  
Berry Quality ◽  
Selection For ◽  
Early Vigor

In selfed (S1 to 33) progenies of red raspberry cultivars, inbreeding depression progressively reduced plant height in spite of selection for vigor. Parent-offspring correlations indicated high realized heritability of this character. High yield was correlated in this material with many laterals, early flowering, tall new canes, and good berry quality but not with winter resistance. Heritability in the broad sense was high for early vigor, plant height and winter resistance, lower for berry weight and flowering day, and very low for yield and its morphological components, but selection for vigor may have influenced these estimates.In a second experiment five S2 progenies and their parent cultivars Muskoka, Trent and Tweed were crossed with three tester plants, Ottawa Latham, Viking and 45-01-56. Some of the S2 × tester progenies were superior in a number of yield characters to those produced when their parent cultivar was crossed to the same testers. The results were similar to those with strawberry (Spangelo et al., 1971), suggesting that inbreeding may sometimes be a useful step in a raspberry breeding program for higher yield. However, inbred × inbred crosses were generally poor. General and specific combining abilities were mostly similar in three different samples of factorial ("¼ diallel") crosses, but there were many exceptions possibly due to genotype-environment interactions. Most of the correlations were significant in this trial and the highest ones were in agreement with the correlations in the inbreeding trial.

scholarly journals PEA (Pisum sativum L.) BREEDING: ADVANCES OF THE BREEDING PROGRAM AT UNIVERSIDAD NACIONAL DE ROSARIO

2021 ◽  
Vol 32 (Issue 2) ◽  
pp. 14-22
Author(s):  
I. Gatti ◽  
F. Cazzola ◽  
C.J. Bermejo ◽  
M.F. Guindón ◽  
M.A. Espósito ◽  
...  
Keyword(s):  
Local Development ◽  
Doubled Haploids ◽  
Breeding Program ◽  
Yield Potential ◽  
High Yield ◽  
Breeding Programs ◽  
Commercial Line ◽  
National University ◽  
Reducing Costs

A pea breeding program to increase production in quantity and quality was started in 2005 in the College of Agrarian Sciences (FCA), National University of Rosario (UNR). The first steps were to gather an active collection of germplasm from around the world and to analyze genetic variability through morpho-agronomic and molecular traits in order to set objectives. In 2014, the National Institute of Agropecuarian Technology (INTA) and the FCA-UNR, joined forces to unite inter-institutional efforts for promoting the local development of pea genotypes adapted to the region. This program, using conventional methodologies, has so far obtained a new commercial line (Primogénita FCA-INTA) of green cotyledons, semi-leafless, with high adaptation to local agro ecological conditions and high yield potential. Breeding, nevertheless, is a slow process. Developing new pea varieties usually takes a decade or more when using traditional methodologies; thus, different alternatives were proposed for the reduction of this period. Doubled haploids and in vitro culture have been some of the methodologies developed; in pulses, however, they have not been efficiently implemented in breeding programs. In this context, Speed Breeding emerges as a technology that allows increasing the efficiency of the programs, while reducing costs and the required labor. Key words: peas, conventional methodologies, Speed Breeding, doubled haploids.

scholarly journals Karakteristik dan Potensi Produksi Pati Varietas Sagu Bestari [Characteristics and Starch Production Potential of Sago Bestari Variety]

Buletin Palma ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 29
Author(s):  
Hengky Novarianto ◽  
Ismail Maskromo ◽  
Meity A Tulalo ◽  
Elsje T Tenda ◽  
Jeanette Kumaunang ◽  
...  
Keyword(s):  
Vitamin C ◽  
Morphological Characteristics ◽  
Proximate Analysis ◽  
Leaf Length ◽  
Yield Potential ◽  
High Yield ◽  
Observation Data ◽  
Sago Starch ◽  
Production Potential ◽  
Starch Production

<p>Sago development requires plant material as superior seedlings for rehabilitation and replanting. Until 2016 two superior sago varieties were released, namely Molat sago varieties from Maluku in 2011 and Selatpanjang Meranti sago varieties from the Meranti Islands Regency, Riau in 2013. Indragiri Hilir Regency, Riau Province is one of the areas of natural sago growth, and producing sago starch . This district has the opportunity to develop sago palms as a potential and regional producer. In connection with that, a research has been conducted which aims to find out and obtain superior sago species from Indragiri Hilir Regency, from 2015 to 2017. The research method was conducted by observing the sago population with high yield potential. For the observation, 10 sample trees every year were selected in each location/village in Gaung Anak Serka District, Indragiri Hilir Regency, Riau Province. Data observations were carried out on the morphological characteristics of sago and suckers, sago starch production potential, and proximate analysis. Observation data were analyzed for diversity, standard deviation and coefficient of variance. Morphological observations and production of Bestari sago starch obtained an average leaf length of 8.00 m, diameter of the diameter of bottom stem 47.37 cm, circumference of the bottom stem 148.52 cm, the number of leaf scars on the leaf-free stem 53.23 scars, the number leaves on the crown 16.98 strands, the distance of leaf scar 12.42 cm, the length of the petiole 231.00 cm, the width of the petiole 9.25 cm, the thickness of the petiole 3.93 cm, the length of the rachis 660.33 cm, the length of the leaflets 155.59 cm, leaflets width 9.39 cm, and dry starch yield 254.94 kg per palm. Proximate analysis results on Bestari sago starch obtained an average water content of 13.00%, ash content of 0.60%, fat content of 0.83%, protein content of 0.84%, crude fiber content of 0.29%, and carbohydrate content was 84.34%, with 350 calories, Vitamin C 0.96 mg/100 gr sago starch, and total sugar around 1.43%. Hoping that sago Bestari variety will become the suckers resources for sago development in Indragiri Hilir Region, Riau Province and other region of Indonesia.</p><p> </p><p><strong>ABSTRAK </strong></p><p>Pengembangan sagu membutuhkan bahan tanaman sebagai bibit unggul untuk rehabilitasi dan penanaman kembali. Sampai tahun 2016 telah dilepas dua varietas sagu unggul, yaitu varietas sagu Molat asal Maluku tahun 2011 dan varietas sagu Selatpanjang Meranti asal Kabupaten Kepulauan Meranti, Riau tahun 2013. Kabupaten Indragiri Hilir, Provinsi Riau adalah salah satu daerah pertumbuhan sagu alami dan penghasil pati sagu. Kabupaten ini memiliki peluang untuk dikembangkan tanaman sagu sebagai potensi dan penghasilan daerah. Sehubungan dengan itu, maka telah dilakukan penelitian yang bertujuan untuk mengetahui dan mendapatkan jenis sagu unggul asal Kabupaten Indragiri Hilir, sejak tahun 2015 sampai tahun 2017. Metode penelitian dilakukan dengan observasi terhadap populasi sagu potensi hasil tinggi. Untuk pengamatan telah dipilih sebanyak 10 pohon contoh setiap tahun di setiap lokasi/Desa di Kecamatan Gaung Anak Serka, Kabupaten Indragiri Hilir, Provinsi Riau. Pengamatan data dilakukan terhadap karakteristik morfologi tanaman sagu dan anakan, potensi produksi pati sagu, dan analisis proksimat. Data pengamatan dianalisis keragaman, simpangan baku dan koefisien keragamannya. Hasil pengamatan morfologi dan produksi pati sagu Bestari diperoleh rata-rata panjang bebas daun 8,00 m, diameter batang bawah 47,37 cm, lingkar batang bawah 148,52 cm, jumlah bekas pelepah daun pada batang bebas daun 53,23 buah, jumlah daun pada mahkota 16,98 helai, jarak antar pelepah 12,42 cm, panjang pelepah 231,00 cm,lebar pelepah 9,25 cm, tebal pelepah 3,93 cm, panjang daun 660,33 cm, panjang anak daun 155,59 cm, lebar anak daun 9,39 cm, dan produksi pati kering 254,94 kg per pohon. Hasil analisis proksimat pada pati sagu Bestari diperoleh rata-rata kadar air 13,00%, kadar abu 0,60%, kadar lemak 0,83%, kadar protein 0,84%, kandungan serat kasar 0,29%, dan kadar karbohidrat adalah 84,34%, dengan 350 kalori, Vitamin C 0,96 mg/100 gr pati sagu, dan total gula sekitar 1,43%. Diharapkan varietas sagu Bestari menjadi sumber benih untuk pengembangan sagu di Kabupaten Indragiri Hilir, Riau dan daerah Indonesia lainnya</p>

scholarly journals Yield components of the M7 Kipas Putih mutant soybean

2022 ◽  
Vol 951 (1) ◽  
pp. 012049
Author(s):  
Zuyasna ◽  
E Hayati ◽  
Y Ghufrani ◽  
A Marliah ◽  
B Basyah ◽  
...  
Keyword(s):  
Plant Height ◽  
Yield Components ◽  
Seed Weight ◽  
Yield Potential ◽  
High Yield ◽  
Plant Weight ◽  
Plant Seed ◽  
Quantitative Characters ◽  
Planting Distance ◽  
Mutant Lines

Abstract This study aimed to obtain the homogeny of M8 soybean lines in an effort to release new high yielding varieties. The research was conducted in Lamsidaya village, and the observation of yield components was carried out at the Plant Breeding Laboratory, Faculty of Agriculture, Universitas Syiah Kuala. This study did not use an experimental design, so that the quantitative characters were observed individually from each plant, then analyzed by estimating the heritability broad sense value and the progress of selection. The material used were var. Kipas Putih and var. Dega1 as control, eight of 7th generation Kipas Putih mutant lines (B4, B7, B10, B12, B13, B15, B18 and B22). All genotypes were planted in rectangular plot 10 m x 1 m, drainage 50 cm, and planting distance 50 cm x 30 cm. Plants were maintained in accordance with the recommendation for soybean cultivation from Balitkabi, and fertilizer NPK (16:16:16) was given 200 g/plot (200 kgha-1). Parameters observed included plant height, flowering time, harvest time, number of productive branches, total number of pods per plant, number of filled pods per plant, percentage of filled pods per plant, seed weight per plant, weight of 100 seeds, seed weight per plot, and yield potential. All quantitative characters indicated increase on selection except for the character of plant height, percentage of filled pods and weight of 100 seeds because the heritability value was low. The B18 line has the potential to become a new high yielding variety because it has a high yield potential (3.02 tons ha-1) with a large seed size compared to the other seven mutant lines and is also higher than the parent Kipas Putih and var Dega 1 varieties.

scholarly journals Plant density and nitrogen topdressing of high-altitude main-season corn

2021 ◽  
Vol 42 (5) ◽  
pp. 2651-2668
Author(s):  
Denis Piazzoli ◽  
◽  
Moryb Jorge Lima da Costa Sapucay ◽  
André Mateus Prando ◽  
João Alberto de Oliveira Júnior ◽  
...  
Keyword(s):  
Grain Yield ◽  
High Altitude ◽  
Plant Height ◽  
Plant Density ◽  
N Fertilization ◽  
Stem Diameter ◽  
Yield Potential ◽  
High Yield ◽  
Corn Yield ◽  
Plant Densities

An appropriate combination of plant density with nitrogen (N) fertilization can optimize corn growth and increase grain yields. This study evaluated the effects of nitrogen topdressing rates and plant density levels on the agronomic performance of corn. The early hybrid DKB 240 YG, with high yield potential and stability, was evaluated in two summer crops in Mauá da Serra, Paraná (950 m asl), in a Cfb climate, on a Rhodic Eutrudox. The experiment was arranged in randomized complete blocks and subdivided plots with four replications. The plant densities (60,000; 75,000; 90,000 and 105,000 plants ha-1) were assessed in the plots and the nitrogen (ammonium nitrate 32% N) topdressing rates (0, 60, 120, 180 and 240 kg ha-1) in the subplots. The stem diameter, plant height, ear insertion height and grain yield were evaluated. The stem diameter, plant height, ear insertion height and grain yield were influenced by the interaction between plant density and nitrogen topdressing under the tested high-altitude edaphoclimatic conditions. The stem diameter of corn plants decreased due to the increase in plant density whereas nitrogen topdressing attenuated this reduction. Maximum plant height was observed at a density of 75,000 plants ha-1 associated with a topdressing of 169 kg ha-1 of N, and highest ear insertion at 60,000 plants ha-1 and 168 kg ha-1 of N. Corn yield was highest at a density of 105,000 plants ha-1 associated with a topdressing of 185 kg N ha-1 of N.

scholarly journals Evaluation of the Green bean variety candidate BU-16

2008 ◽  
pp. 75-81
Author(s):  
Gyuláné Györgyi
Keyword(s):  
Plant Height ◽  
Total Yield ◽  
Ground Level ◽  
The Other ◽  
Plant Distribution ◽  
Yield Potential ◽  
High Yield ◽  
Early Maturity ◽  
Bean Variety ◽  
Pod Length

This study presents the results of the variety comparison trials conducted with the French bean variety candidate BU-16 on sandy soil, during two years at the Research Center of the University of Debrecen.The outstanding characteristics of this variety candidate are the early maturity, the showy pods (yellow, straight, cylindrical cross-section „pencil bean”) and the high yield potential.The experiments were conducted with a randomized design, with five varieties and four replications. The varieties (of which two are foreign and three are domestic) were as follows: BU-16 fj, Maxidor, Paridor, Hungold and Budai piaci. The individual plots were 2 m wide and 4 m long. The seeds were sown at a density of 30 germs per m2, with a row spacing of 50 cm.The following parameters were taken: time of flowering, time of green maturity, plant height, height of the lowest pod above ground level, number of pods per plant, distribution of the pods by the state of development (20 plants), usable pod length (1 kg of standard crop-yield), yield per hectare based on the number of plants per plot. The experiments were evaluated statistically with Excel and SPSS softwares.Results obtained with the variety candidate BU-16:– The time from the emergence to green maturity is 45 to 46 days, which is short as compared with the other cultivars studied.– Plant height is 38cm (two years average), which is among the highest ones, together with Paridor.– The pods are set high above the ground level similarly to Paridor, the height of the lowest pod is 19 cm.– The average number of pods per plant is 13 (two years average) similarly to Paridor and to Maxidor.– The distribution of pod size in 2007 is as follows: 68% of the pods of BU-16 is of the standars size, which is a good rate. The value of this trait for the other varieties is 60 to 63%, except for Paridor, the value of which is similar to that of BU-16.– The usable pod length (10 to 14 cm) is 63% in 2007 and 84% in 2006. Similar pod length rates were obtained for Maxidor, while the rate for Paridor is as high as 91%.– The total yield and the standard yield of BU-16 is among the highest ones.According to the results obtained and presented above, the variety candidate BU-16 is the earliest maturing among the varieties tested with high yield potential which, however, is not significantly different from that of the others. Significant differences can only be detected in plant height and the number of pods per plant. Considering the results, BU-16 is to be further tested.

scholarly journals Evaluation of Different Germplasms of Turmeric (Curcuma longa L.) for Growth, Yield and Quality Attributes in New Alluvial Zone of West Bengal

2020 ◽  
pp. 35-40
Author(s):  
S. Das ◽  
F. H. Rahman ◽  
S. Mukherjee ◽  
K. Nag
Keyword(s):  
Plant Height ◽  
West Bengal ◽  
Curcuma Longa ◽  
Block Design ◽  
Maximum Yield ◽  
Growth Yield ◽  
Local Maximum ◽  
Leaf Length ◽  
Qualitative Character ◽  
Yield And Quality

A field experiment on Turmeric (Curcuma longa L.) was conducted to study and evaluate different germplasms for growth, yield and quality characters under New Alluvial Zone of West Bengal at Instructional Farm, Jaguli, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal during 2013-14 and 2014-15. The design adopted was Randomised Block Design (RBD) having three replications with seven germplasms namely Rajendra Sonia, Alleppy Supreme, Roma, Pratibha, Kedaram, Rashmi and Midnapur local as check. Among seven germplasms evaluated, the genotype Pratibha was found superior in terms of maximum plant height (100.93 cm), highest number of primary fingers (24.0), highest value for the trait weight of primary fingers (204.10 g) as well as secondary fingers (60.23 g), maximum yield/ plant (369.9 g) and maximum yield (25 ton/ha). Minimum plant height (82.60 cm) and lowest number of primary fingers (9.3) were recorded in case of Midnapur local. Maximum leaf length was recorded in Roma (52.29 cm). In respect of number of mother rhizome/plant, Rajendra Sonia recorded the highest quantity (1.98 nos.) whereas Kedaram recorded the lowest (1.42 nos.). Kedaram also produced minimum trait weight of secondary fingers (33.89 g). In qualitative character, the curcumin percentage was recorded highest with germplasm Alleppy Supreme (5.2%) followed by Rajendra Sonia (4.1%) and it was minimum in Kedaram (3.4%). The germplasms Pratibha and Alleppy supreme recorded with highest oleoresin (11.9%) and  essential oil (7.0%) content, respectively.

Genetic progress in upland rice breeding program for grain yield and plant height

2021 ◽  
Vol 45 ◽  
Author(s):  
Amanda Mendes de Moura ◽  
Flávia Barbosa Silva Botelho ◽  
Laís Moretti Tomé ◽  
Cinthia Souza Rodrigues ◽  
Camila Soares Cardoso da Silva ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Mixed Model ◽  
Upland Rice ◽  
Breeding Program ◽  
High Yield ◽  
Joint Analysis ◽  
Rice Breeding ◽  
Genetic Progress ◽  
Mixed Model Approach

ABSTRACT In the context of plant breeding programs, it is necessary to evaluate the efficiency of genotype selection over successive years. However, evaluating the genotype selection efficiency is not an easy task, since there is not just a single way to precede it. Besides that, the programs need to be dynamic; that is, they should be able to track the introduction and discard of genotypes each year. As a result, the available data is quite unbalanced, leading to difficulties in certain analyses. Thus, the present study aims to propose some approaches to verify the genetic progress in the preliminary trial of the Federal University of Lavras (UFLA) upland rice breeding program. We utilized mixed models for grain yield and plant height. Trials were performed with a total of 120 genotypes in seven environments, defined by the interaction between locations and years. Due to the imbalance in the available data, the mixed model approach, i.e., Restricted Maximum Likelihood/Best Linear Unbiased Prediction (REML/BLUP), was adopted for the joint analysis. Besides the genetic and phenotypic parameters, the expected gains were also obtained with the selection, genetic progress, renewal rate (RR%), and dynamism of preliminary trials. The efficiency of the selection of superior genotypes per year was verified, with genetic progress favorable for reducing the medium-sized plants associated with high yield.

scholarly journals Multivariate Analysis Of Potato Genotypes For Genetic Diversity

2020 ◽  
Author(s):  
Arifa Khan ◽  
Shazia Erum ◽  
Naveeda Riaz ◽  
Muhammad Ibrar Shinwari ◽  
Maryum Ibrar Shinwari
Keyword(s):  
Genetic Diversity ◽  
Leaf Area ◽  
Plant Height ◽  
Quantitative Traits ◽  
Principal Component ◽  
Germination Percentage ◽  
Yield Potential ◽  
High Yield ◽  
Positive Correlation ◽  
Qualitative And Quantitative

Sustainable production of food crops relies on germplasm improvement and genetic diversity that helps to identify appropriate parents, which is very important step in breeding of genotypes having high yield potential for future use. This study was conducted to investigate the extent of genetic diversity using multivariate technique on the basis of qualitative and quantitative traits. An experiment was comprised of 74 exotic genotypes and started at National Agriculture Research Center Islamabad, Pakistan during autumn 2017-2018 and 2018-2019. Data was recorded on qualitative and quantitative traits by following standard procedures and Biplot analysis was used to calculate the significance among the studied quantitative traits to exhibit the strength of relationship between traits. Results showed significant diversity in qualitative traits and quantitative traits. Red, yellowish, brown, light yellow, light brown color tubers were produced. Alike, genotypes produced yellow, cream and white flesh color tubers. Genotypes had oval, round, oblong, elliptic and reform with medium, small and large size tubers. Alike, brown, light brown, dark red and yellow eyes color was noted. In case of quantitative traits, genotypes had high variance regarding plant height, leaf area and number of tubers per lane. Genotypes had very high genetic variance for weight of tuber per plant and weight of tuber per lane while low variance was recorded for germination, number of stem per plant and number of eyes per tuber. Significant positive correlation was observed between number of tubers per plant (TPP) with number of eyes on tubers (r = 0.241) and number of tubers per lane (TPL) (r = 0.349). But negative correlation was noted between number of tubers per plant (TPP) with plant height (r = -246), leaf area (-0.529) and germination (r = -0.283). Plant height was found significantly positive correlated with leaf area (r= 0.456), germination percentage (r = 0.255) and weight of tubers per plant (r = 0.307). Leaf area (LA) showed positive significant correlation with number of tubers per plant (r = 0.466) and weight of tubers per plant (r = 0.263)., yield and harvest index (r = 0.798, 0.755, 0.255). Weight of tubers per lane (WTL) showed positive correlation with weight of tubers per plant (r = 0.387). Regarding the interrelation between the traits and genotypes, the first two principal component axes (PC1, 24.83% and PC2, 23.46%) accounted for about 48.29% of the total variability reflecting the complexity of the variation between the plotted traits of genotypes.

Sign in / Sign up

Export Citation Format

Share Document