scholarly journals MULTIVARIATE ANALYSIS OF MORPHOLOGICAL TRAITS IN YAM BEAN Pachyrhizus erosus

Zuriat ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Agung Karuniawan

The objective of this study was to estimate the genetic diversity among yam bean landraces collected from different islands of Indonesia based on morphological traits. Thirty-six selected yam beans accessions from diverse ecological regions of Indonesia and six accessions from South and Central America were examined. Field trials were performed at two locations in Bogor, Indonesia, in a randomized block design with two replications. Genetic diversity between accessions based on morphological traits was determined by multivariate analysis. Time to flowering, first pod development, leaf length, leaf width, and internodes length played essential role in classification of the yam beans. A clear separation among the yam bean accessions collected from Indonesia, i.e., Sumatra landraces and the landraces collected from eastern Indonesia was detected. Furthermore, American accessions are not obviously separated from Indonesian yam bean materials.

Author(s):  
Desai Tarjani B. ◽  
Madhu Bala ◽  
R.K. Patel

Background: Sunnhemp is a very important green manuring crop. The crop is utilized for various purposes like reducing soil erosion, improving soil properties and recycling plant nutrients. The knowledge regarding the crop is still not exploited, due to lack of research in this crop. So, the present study was conducted to know the extent of genetic diversity present in the crop. From the divergence analysis, it may be concluded that the genotypes belonging to different clusters separated by high estimated statistical distance may be used in the hybridization programme for developing high green biomass yielding sunnhemp varieties. Methods: A field experiment was conducted at the research farm of Department of Genetics and Plant Breeding, Navsari Agricultural University, Navsari, Gujarat with thirty sunnhemp genotypes to know the extent of genetic diversity by D2 analysis in a randomized block design during late Kharif 2017.Result: The analysis was conducted for D2 analysis and was concluded from D2 analysis that, the characters viz., days to 50% flowering, fresh weight of root nodules per plant, fresh weight of plant, root nodules per plant, leaf length, root length, dry weight of root nodules per plant, C: N ratio, internodes per plant, plant height and stem diameter contributed towards the genetic divergence. Traits like primary branches per plant and leaf area didn’t contribute towards genetic divergence. The thirty genotypes were grouped into seven clusters following Tocher’s method (Rao, 1952). The cluster III was largest having eleven genotypes. Cluster IV and cluster II was second largest which contained seven and five genotypes respectively. Cluster I and cluster V contained three and two genotypes respectively Cluster VI and VII had only one genotype. The intra cluster distance was more in cluster III and the inter cluster distance was maximum between cluster V and cluster VII.


2020 ◽  
Author(s):  
Praveen Kumar ◽  
Prashant Kaushik

AbstractBackground and ObjectiveFaba bean is an important crop for achieving nutritional food security, but there is very limited diversity in the cultivated varieties of faba bean. Moreover, genetic diversity is vital for its use in faba bean genetic imporvement.Material and MethodsHere we determined the diversity in the sixty-four genotypes of faba bean of different agro-ecological origins. Plants were grown in randomized block design in three replications. Further, the genotypes were characterized based on the ten morphological traits.ResultsHighly significant differences were determined for all of the studied traits. Whereas, the number of cluster per plant was positively correlated with the pods per plants. Moreover, the trait number of cluster per plant determined the most substantial positive effect on seed yield.ConclusionsOverall, our results indicate a wide range of variability for further selection and improvement of faba bean ideotype.


2016 ◽  
Vol 14 (1) ◽  
pp. 19
Author(s):  
Sosiawan Nusifera ◽  
Agung Kurniawan

<p>Research aimed at estimating yield stability of 27 yam bean (Pachyrhizus erosus L. Urban) genotypes in Jatinangor was conducted at dry and rain seasons at the experimental station of Faculty of Agriculture Unpad, Jatinangor. Field trials at dry season was started from February to August 2006 and at rain season started from November 2006 to May 2007. Field plot consisted of four sets arranged in Randomized Block Design with 27 genotypes collected from various Indonesia regions and its ancestor from Central and South America as treatment and replicated twice. The four field trial sets were differed based on season and reproductive pruning treatment and considered as four different environment. Character observed was tuber weight per plant (g). Data was analysed with AMMI (additive main effect and multiplicative interaction). Result indicated that B-23/EC040 was highest yielding genotype, but less stable. In contrast, B-33/J, B-26/NS, B-10/EC550, and B-94/ENT were moderate yielded but had higher level of stability. Environment IV (rain season; pruning) was good environment where genotypic variation seemed more consistent with B-23/EC040 as best genotype. Best genotype in discriminating environment (I) was B-55/CJ, and in environment II was B-80/ENT. Whereas in Less discriminating environment III, B-15/EC104 was the best genotype</p><p><strong>Abstrak</strong></p><p>Penelitian yang bertujuan untuk mengetahui stabilitas hasil dari 27 genotipe bengkuang (Pachyrhizus erosus L. Urban) telah dilakukan pada musim kemarau dan musim hujan di Kebun Percobaan Fakultas Pertanian Unpad, Jatinangor. Percobaan pada musim kemarau berlangsung sejak Februari-Agustus 2006 dan percobaan pada musim hujan berlangsung sejak November 2006-Mei 2007. Percobaan terdiri atas empat set, masing-masing disusun dalam rancangan acak kelompok dengan 27 genotipe bengkuang yang dikoleksi dari berbagai wilayah Indonesia dan genotipe leluhurnya dari Amerika Tengah dan Selatan sebagai perlakuan dan diulang dua kali. Empat set percobaan tersebut dibedakan berdasarkan kombinasi musim dan perlakuan pemangkasan sink reproduktif, atau representasi dari empat lingkungan yang berbeda. Karakter yang diamati adalah bobot ubi per tanaman. Data dianalisis dengan model AMMI (additive main effect and multiplicative interaction). Hasil penelitian menunjukkan B-23/EC040 adalah genotipe berdaya hasil tertinggi, namun kurang stabil. Sebaliknya, B-33/J, B-26/NS, B-10/EC550, dan B-94/ENT adalah genotipe dengan hasil di atas rata-rata namun memiliki stabilitas yang lebih tinggi. Lingkungan IV (musim hujan dengan pemangkasan) adalah lingkungan baik di mana variasi genotipe terlihat lebih konsisten dengan B-23/EC040 sebagai genotipe terbaik. Genotipe terbaik pada lingkungan I adalah B-55/CJ, pada lingkungan II B-80/ENT, dan pada lingkungan III B-15/EC104.</p>


2019 ◽  
Vol 8 (2) ◽  
pp. 81
Author(s):  
Evayusvita - Rustam ◽  
Dede J. Sudrajat

Jabon putih (Neolamarckia cadamba) is a widely distributed potential fast-growing species and is thought to be associated with extensive genetic diversity. The aim of the research was to assess the morphological and genetic variation of jabon putih seedling based on AFLP markers. Randomized block design with 4 replications was used to assess seedling morphological variation on 31 families from 4 populations (Kapuas, Kampar, Nusa Kambangan, Pomalaa) based on traits of seedling height, diameter, sturdiness quotient, number of leaves, leaf length, and leaf width at nursery. AFLP Analysis System I Kit by using dry leaf samples from each family was used. Characteristics of jabon putih seedlings had variation among populations and families within population. Genetic variation within population based on morphological traits had the similar trend with result of AFLP analysis. The highest genetic variation was detected in Kapuas population, followed by Pomalaa, Nusa Kambangan, and Kampar populations. Cluster analysis and UPGMA method had 2 cluster and put down most of families from Kapuas in one cluster separated from other families. Based on the genetic similarity analysis, 26 families could be considered as potential families for the establishment of breeding populations. The study has important practical implications for genetic resources management and for future breeding programs of jabon putih.


2017 ◽  
Vol 47 (3) ◽  
pp. 185-194 ◽  
Author(s):  
Adriano Stephan NASCENTE ◽  
Ruby KROMOCARDI

ABSTRACT The upland rice farmers in Suriname use local varieties and low level technologies in the field. As a result, the upland rice grain yield is low, at about 1 000 kg ha-1. Our objective was to evaluate the use of upland rice cultivars from Suriname and Brazil, and the effect of nitrogen, N, phosphorus, P, and potassium, K, fertilizers on cultivation variables. We undertook four field trials in the Victoria Area, in the Brokopondo District, using a randomized block design each with four replications. The most productive rice varieties were BRS Esmeralda (grain yield 2 903 kg ha-1) and BRS Sertaneja (2 802 kg ha-1). The highest grain yield of 2 620 kg ha-1 was achieved with a top dressing application of 76.41 kg N ha-1 20 days after sowing. For P, the highest grain yield of 3 085 kg ha-1 was achieved with application of 98.06 kg ha-1 P2O5 applied at sowing. An application rate of 31.45 kg ha-1 of K2O at sowing achieved the highest grain yield of 2 952 kg ha-1. Together, these application rates of N, P and K resulted in rice grain yield of about 3 000 kg ha-1, which is three times greater than the national average for upland rice. We demonstrate that the use of improved rice varieties matched to the local conditions, and application of appropriate fertilizers, are management practices that can result in significant increases in rice grain yield in Suriname.


Genetika ◽  
2004 ◽  
Vol 36 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Jelena Damnjanovic ◽  
Maja Vracarevic ◽  
Gordana Surlan-Momirovic ◽  
Slaven Prodanovic

The aim of this study was to identify an eggplant donor line which possess the largest frequency of favourable alleles that control fruit yield. Such donor line should be used to improve the elite eggplant hybride K35 x K12. The fruit yield of the elite hybrid, its parents and their hybrids with three potential donor lines (K36/1, K11 and K22/2) was examined in a diallel set by means of field trials. The trials were set in a randomized block design in three replications. After the fruit yield had been measured, the modified method of evaluation of relative loci value according to Dudley (1987) was applied. Ali inbred lines expressed positive values of the ?G' parameter. The K11 inbred had the largest ?G' value (2.38) and, also, the lowest frequency of unfavourable alleles on the loci class D (1.33). It was established that the K11 inbred line was more related to the K35 parental inbred line (7.81). Consequently, on the basis of the ?D' values, improvement should be obtained by backcrossing the elite hybrid K35 x K11 to the donor inbred K11.


2018 ◽  
Vol 8 (2) ◽  
pp. 50-55
Author(s):  
Lukman Arif

This study aims to determine to determine the effect of land spinach plant growth due to the provision of liquid organic fertilizer palm sugar and to determine the right concentration of palm sugar palm POC to the growth of land spinach plants. This experiment used a single factor randomized block design consisting of 4 replications of 4 treatments. The best experimental results on plant height and number of leaves, leaf length and leaf width aged 14 and 24 HST were influenced by the use of palm juice 40 ml / L water with a height of 19.59 cm and 32.13 cm number of leaves 6.34 and 12.25 strands, leaf length 13.71 and 15.75 while leaf widths are 1.74 and 3.48 cm.


Author(s):  
Rakesh Kumar ◽  
Deepak Kumar Rathore ◽  
Magan Singh ◽  
Parveen Kumar ◽  
Anil Khippal

An experiment consisting of four phosphorus levels (0, 40, 60 and 80 kg/ha P2O5) and five zinc levels (0, 10, 20, 30 and 40 kg/ha ZnSO4) was laid out in randomized block design in factorial mode to find out the effect on yield and quality of fodder cowpea [Vigna Unguiculata (L.)Walp.]. Growth parameters viz. plant height, number of leaves, number of branches, leaf length, leaf width and leaf stem ratio were improved with the application of 60 kg/ha P2O5 and 20 kg/ha ZnSO4. Application of 60 kg/ha phosphorus recorded 27.64 t/ha yield, which was 7.50 and 55.6 % higher than 40 kg/ha and no phosphorus application, respectively. Application of zinc in the form of ZnSO4 @ 20 kg/ha increased significantly the green fodder yield (25.89 t/ha). Interaction effect of phosphorus and zinc application was found significant with respect to green fodder, dry matter yield and nutrient uptake. Yield, phosphorus and zinc uptake in cowpea fodder were showing declining trend at combination of application rate more than 60 kg/ha P2O5 and 20 kg/ha ZnSO4.


1981 ◽  
Vol 57 (5) ◽  
pp. 208-211 ◽  
Author(s):  
I. K. Morrison ◽  
N. W. Foster ◽  
H. S. D. Swan

Results are reported from the third in a series of three industry-sponsored forest fertilization field trials established in an approximately 55-year-old jack pine (Pinus banksiana Lamb.) stand in the Dryden-Sioux Lookout area of northwestern Ontario. The experiment was of randomized block design and tested various combinations of N plus P and N plus K. The experiment was unique in that fertilizers were applied in the fall on approximately 5 cm of early snow. Significant increases over control for several parameters after both five and ten years were noted for several treatments. Best response in relation to total volume increment over ten years was to N at 112 kg/ha plus K at 93 kg/ha where 21.72 m3/ha of extra wood was produced.


2021 ◽  
Vol 73 (3) ◽  
pp. 658-664
Author(s):  
A.B.G. Costa ◽  
G.S. Difante ◽  
B.A.M. Campelo ◽  
A.L.C. Gurgel ◽  
C.M. Costa ◽  
...  

ABSTRACT Most sandy soils have low natural fertility and low levels of organic matter, making nitrogen (N) fertilization essential. Thus, five doses of N were applied (0, 75, 125, 175 and 225mg dm-³) in a randomized block design to evaluate the effects of nitrogen fertilization on the morphogenetic, structural and production characteristics of Brachiaria brizantha cv. Marandu in a Quartzarenic neosoil. The doses of N did not affect the height of the canopy. The leaf elongation rate, final leaf length and number of live leaves increased linearly at the doses of N. Leaf appearance rate, stem elongation rate, leaf lifespan, phyllochron, leaf senescence rate and tiller density showed a quadratic response to the rates There was also an effect of N rates in herbage mass, leaf mass, stem mass, which increased linearly. Brachiaria brizantha cv. Marandu cultivated in Quartzarenic neosoil requires higher doses of N, 175 and 225mg dm-³. Under these conditions, increases in its morphogenetic, structural and productive characteristics are observed. These findings may not be repeated in the most fertile soils with the greatest capacity to supply N.


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