scholarly journals Genetic variability and correlation studies of mulberry (Morus alba L.) genotypes in Bangladesh

2020 ◽  
Vol 49 (3) ◽  
pp. 685-691
Author(s):  
Md Serajur Rahman ◽  
SM Shahinul Islam

Morphological, phenotypical and yield attributing characteristics of 20 mulberry genotypes were evaluated. Genotypic and phenotypic variations, heritability, genetic advance and correlation co-efficient were also estimated. It was found that the phenotypic co-efficient of variation (PCV) was higher (97.68%) than genotypic co-efficient of variation (GCV, 96.99%). The broad sense heritability for these traits ranged from 98.60 (AL) to 4.69 (LLS). High heritability coupled with high genetic advance was recorded for the characters apex length (AL), leaf length (LL), leaf width (LW), leaf petiole ratio (LPR) and petiole length (PL) suggesting the higher genetic control over these traits. Significant positive correlations to leaf yield/plant were observed for the characters, namely total shoot weight (0.817), longest shoot length (0.600), total branch height (0.596) and leaves fresh weight/10 leaves (0.425). Leaf yield showed significantly positive phenotypic and genotypic correlations with all other growth traits (viz., total shoot weight 0.817, length of longest shoot 0.600, total branch height 0.596 and leaves fresh weight/10 leaves 0.425) except total branch number, nodes per meter, leaf width and petiole length. High genetic advance as percentage of mean coupled with heritability was observed on AL, LL, LW, LPR, PL and 10 fresh leaves weight suggesting the prevalence of additive gene action with low environmental influence for the determination of these characters and could be effective in phenotypic selection. Analysis of variances (ANOVA) for characters such as AL, LL, LW, LPR and PL showed significant variations among the genotypes. Since mulberry is mainly cultivated for leaf yield, genotypes having higher AL, LL, LW and LPR and PL must be given importance during parent selection to evolve high yielding varieties across different seasons in mulberry.

2017 ◽  
Vol 40 (3) ◽  
pp. 223-227
Author(s):  
I.K. Thakur ◽  

Firstly thirty two genotypes of the species, collected from different areas, were evaluated for growth traits, mineral nutrients and proximate principles after four years in a previously raised progeny trial. In this way top eighteen genotypes were selected and grafted separately on seedling stock of the same species and a clonal seed orchard was established which consisted of eighteen clones (grafted) raised in RBD with three replications. After five years the observations were recorded on individual ramet viz; plant height, basal diameter, leaf width, leaf length, number of branches, petiole length and green leaf yield. Significant differences among clones were observed for different morphometric traits. Various genetic parameters and correlation coefficients for different growth characters were determined. The highest percent GCV (33.20) and PCV(36.02) as also heritability (84.95) were exhibited by green leaf yield while maximum GA (3.23) was noticed in leaf width. The highest percent GG (61.86) was recorded for green leaf yield. Significantly positive correlations were observed between plant height and basal diameter (0.6086), plant height and green leaf yield (0.8461), basal diameter and green leaf yield (0.6924), leaf width and leaf length (0.6490), leaf width and green leaf yield (0.5688) and leaf length and green leaf yield (0.4225).


HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 899D-899
Author(s):  
Moo R. Huh ◽  
Beyoung H. Kwack ◽  
Leonard P. Perry

Shoot length, leaf length and width, root length, and crown diameter were affected by 0.0-, 0.5-, 1.0-, and 5.0-mg·liter–1 uniconazole drench and 25- or 50-mg·liter–1 GA3 spray but not significantly by 0.0%, 2.5%, and 5.0% NaCl. Leaf width of H. syriacus Sieb. & Zucc. was not affected and that of H. syriacus L. significantly decreased, as NaCl concentration increased. Effect of NaCl on H. syriacus leaf width was offset by treatment with uniconazole but not by GA3 treatment. With 2.5% NaCl, dry weight of H. hamabo treated with uniconazole or GA3 increased and that of treated H. syriacus decreased. With 5.0% NaCl, dry weight of both species decreased with uniconazole or GA3. Calcium at 13.35 or 133.5 mM decreased the reduction of dry weight by NaCl treatment. The dry: fresh weight ratio of H. hamabo and H. syriacus treated with NaCl plus uniconazole was higher than that only treated with NaCl. GA3 treatment with NaCl did not affect the dry: fresh weight ratio for either species


Genetika ◽  
2016 ◽  
Vol 48 (2) ◽  
pp. 675-690
Author(s):  
Naser Sabaghnia ◽  
Mehdi Mohebodini ◽  
Mohsen Janmohammadi

Interest in growing winter spinach (Spinacia oleracea L.) in Iran is increasing due to its good nutritional potential returns relative to other vegetable crops. The objectives of this research were to investigate the interrelationships among different traits of spinach and to evaluate different Iranian spinach landraces with application of the genotype ? trait (GT) biplot methodology in visualizing research data. 81 spinach landraces were grown during 2-years according to randomized complete block design with four replications. Ranking of the genotypes based on the ideal entry revealed that genotypes G1, G20, G7, G8, G9, G27, G49 G70 and G79 were higher in the measured traits and could be good candidates for improving most of the measured traits. Ranking of traits for the leaf yield showed that petiole diameter, petiole length, leaf numbers at flowering, 1000-seed weight and root dry weight were the most discriminating traits which influence spinach leaf yield at both years. There were 9 winning genotypes and 4 which-won-where patterns at the first year while there were 8 winning genotypes and 4 which-won-where patterns at the second year. As a result, the findings from our study are as follows: (i) traits leaf numbers at flowering, leaf length, leaf width, leaf area, petiole diameter and petiole length could be as selection indices for spinach leaf yield improvement, (ii) genotypes G1, G20, G7, G8, G9, G27, G49 G70, and G79 were the most favorable and is thus recommended for commercial release or incorporating in breeding programs; (iii) the GT biplot method can be used to identify superior genotypes in other crops and in other parts of the world.


Author(s):  
M.I. Adebola, A.E. Esson

In this study, two accessions of Bambara groundnut were exposed to fast neutrons Americium-Beryllium (AmBe) source with flux of 1.5 ×104 ncm-2 s-1for different hours, and planted in a completely randomized block design (RCBD) with three replications to raise M1 generation. The data recorded were percentage germination, plant height, number of leaves, leaf length, leaf width, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight. There was variation in plant height, number of leaves, leaf length, leaf width, Days to 50% flowering, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight for Black accession. In the Cream accession, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight were significantly different. Treatment at 16 hours performed best for plant height, leaf length, number of leaves, weight of seed per plant and 100 seed weight in Black accession while Cream performed best at 8 hours exposure time. Fast neutron was observed to improve the performance of Bambara groundnut, thus can be used in breeding programme for Bambara groundnut.


Author(s):  
Alice Tirkey ◽  
Vibha Ramtake ◽  
S. S. Porte ◽  
P. K. Joshi ◽  
N. Khare ◽  
...  

Betelvine (Piper betle L.) is commonly consumed as betel quid or paan with areca nut and/or tobacco; and also utilized in Indian medicine systems and in religious ceremonies. The betel production is highly erratic and so is the income of farmers due to natural climatic factors and spoilage during transport. It is therefore important to improve its productivity per vine and per unit area to meet the demand. Correlation, path coefficient and stability analysis was carried out in fifteen genotypes of betelvine including 3 checks under three protected structures, namely, Bareja (E1), Poly tunnel (E2) and Net tunnel (E3). Among the three structures, Net tunnel was found suitable for the cultivation of betelvine in Chhattisgarh. With respect to quality parameters, Meetha paan (2.65 g/100g) followed by Billori (2.23 g/100g) found to have high protein content. Meetha paan (5.89g/100g) followed by Meetha-cum-bangla (5.36g/100g) was also found to possess high starch content. However, low fiber content was recorded in Meetha pan (1.83g/100g), whereas high potassium content was found in Ramtake meetha (933mg/100g) followed by Bidhan pan (991mg/100g). The genotype, Karapaku possessed high potassium content (2.67mg/g). Hedonic five point scale for organolaptic test showed Meetha paan (2.3/5) followed by Bali paan (2.4/5) were less pungent among genotype studied. Highest shelf life was found in genotype Karapaku and Bhaichigudi (18days). The results indicated that number of leaves per vein were positively correlated with leaf width (0.802 and 0.819) followed by leaf area (0.790 and 0.808), leaf area index (0.782 and 0.800), leaf length (0.745 and 0.759), specific leaf weight (0.681 and 0.709), petiole length (0.658 and 0.705), diameter of internodes (0.484 and 0.559) and R-value (0.112 and 0.110) at both phenotypic and genotypic level, respectively. Path analysis identified leaf width (0.8772) and leaf length (0.4712) had direct effects on leaf yield at phenotypic level. Highest positive direct effect on leaf yield was exerted by leaf area (1.3544) followed by leaf width (0.8986) at genotypic level. These characters can be used as selection criterion in a breeding programme to develop varieties of betelvine with high leaf yield. The stability analysis under three different protected structures viz; E1, E2, E3 indicated that the genotypes, Karapaku, Bhaichigudi and Maghai pan are stable across the environment for leaf yield.


2014 ◽  
Vol 1 (1) ◽  
pp. 46 ◽  
Author(s):  
Rina Ekawati ◽  
Anas D. Susila ◽  
Juang G. Kartika

<p>ABSTRACT</p><p><br />The objectives of this research was to study the effect of shade on growth and productivity of several indigenous vegetables. The research was conducted at Vegetable Garden, University Farm IPB, Darmaga from February until June 2009. This research was arranged in a Randomized Completely Block Design, 1 factor with 2 treatments, shading (N1) and no shading (N0). Result of the research showed that shading increased plant height, length of branch, leaf length and width of Daun Ginseng (Talinum triangulare); leaf diameter, leaf length and width, petiole length of Sambung Nyawa (Gynura procumbens); leaf length and width of Katuk ( Sauropus androgynus); leaf number of Kenikir (Cosmos caudatus), stem diameter of Kemangi (Ocimum americanum); plant height, length of branch, number of branch, leaf length and width of Pohpohan (Pilea trinervia). Shading also increased total fresh and dry weight/plant of Daun Ginseng; and total fresh/plant of Sambung Nyawa and Pohpohan plants. Productivity of Daun Ginseng and Pohpohan at shade field was better than at open field. Daun Ginseng, Sambung Nyawa, Kenikir, Kemangi and Pohpohan plants prefered growing at low light intensity (shade <br />plants).</p><p><br />Key words: indigenous vegetable, shading, growth, productivity</p>


2018 ◽  
Vol 11 (2) ◽  
pp. 2
Author(s):  
Nur Istikomah ◽  
Agustina Widyasworo Kunharjanti

The research was conducted in Sumber Sumber Village of Sanankulon District of Blitar, during April 22 to June 16, 2017.The trial used 10 Mott grass poles on each plot with different spacing ie, P0 = 50 x 100 cm, P1 = 75 x 100 cm, P2 = 100 x 100 cm and P3 = 125 x 100 cm. Parameters measured were number of tillers, plant height, leaf length, leaf width, fresh weight and leaf green index. The design used was a complete randomized design (Gazpers, 1991) consisting of 4 treatments of 6 replications.The result of variance showed that the difference of plant spacing had no significant effect (p > 0,05) on productivity including number of tiller, plant height, leaf width, leaf length, fresh weight of green leaf index. Based on the results of research on differences in spacing to the productivity of first defoliation Mott grass then Need further research on the effect of cropping methods on grass growth and productivity.Keywords: plant spacing, Mott grass, productivity.


2018 ◽  
Vol 44 (4) ◽  
pp. 613-619 ◽  
Author(s):  
Inayat Ur Rahman ◽  
Aftab Afzal ◽  
Farhana Ijaz ◽  
Shajaul M Khan ◽  
Sabaz A Khan ◽  
...  

Commercially available foliar spray labeled as ‘Planto-fuel’ increased significantly (p ≤ 0.05) most of the growth traits viz., leaf length, bulb diameter (7.6 cm), bulb length (5.9 cm), leaves fresh weight/plant, neck fresh weight/plant, bulb fresh weight/plant (166.6 g) and plant fresh weight. It also produced the maximum yield (14.2 tons/ha) while the basal application of DAP significantly increased the number of leaves/plant and 2nd best results in yield whereas the lowest yield was observed through water spray. It is observed that the foliar application of micronutrients mixture in combination with nitrogen is the most suitable method to increase the onion production.


2015 ◽  
Vol 3 (1) ◽  
pp. 38-41
Author(s):  
Y. Ramesh ◽  
V. Ramassamy

The present study brings out the effects of Pseudomonas fluorescens in secondary hardening of tissue cultured banana var.Poovan. Two concentrations (1% & 2%) of liquid medium grown Pseudomonas fluorescens (3×109 cells/ml) were used in borewell water and the growth performance of the banana plantlets was assessed. Seven different growth parameters were studiedviz. shoot weight, height and girth, leaf length, leaf width, no. of leaves and chlorophyll content. Best results were obtained in1%Pseudomonas fluorescens (T2) treatment with average of 10.79gm for weight, 10.25cm for height, 5.3 for no. of leaves, 1.3mmfor girth, 14.96cm for leaf length and 36.6 spad units of chlorophyll content per plantlet compared to treatment (T3) with 2%liquid Pseudomonas fluorescens.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.11878   Int J Appl Sci Biotechnol, Vol. 3(1): 38-41      


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