scholarly journals Effects of Drought on Morphological Traits in Some Cowpea Genotypes by Evaluating Their Combining Abilities

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Amos Afolarin Olajide ◽  
Christopher Olumuyiwa Ilori

An evaluation was conducted to understand the genetic effects of combining ability for four different morphological traits, on 42 hybrids in randomized complete block design with three replications in water-stressed and well-watered environments. The significance of the additive variance (D) and dominance variance (H1) indicated the presence of both additive and nonadditive gene actions in both environments. Among the parents, there was asymmetrical distribution of positive and negative dominant genes and the preponderance of overdominance gene action for all the traits in both environments. This study also indicated a minimum of ten genes for plant height in water-stressed environment and minimum of three and eight genes for terminal leaflet area and number of leaves per plant in both environments, respectively. Estimates of narrow-sense heritability ranged from 13.0% for number of branches per plant in water-stressed to 95.0% in well-watered environment for terminal leaflet area. The study revealed that Danilla, IT93K-432-1, and IT97K-499-35 were the best general combiners for all traits, Danilla × IT97K-499-35, and Danilla × IT93K-432-1 were found to be the best specific combiners for all traits in water-stressed environment. Genetic interactions, additive × additive and additive × dominance, were more pronounced in the inheritance of the traits. This indicated that the selection for these traits should be delayed till advanced generations.

2021 ◽  
Vol 13 (2) ◽  
pp. 10795
Author(s):  
Mohammed BABAGANA ◽  
Olamide A. FALUSI ◽  
Aliyu N. ABDULKADIR ◽  
Alhassan MOHAMMED ◽  
Hauwa SHEHU ◽  
...  

Vegetative parameters of eight M3 (third mutant generation) lines of sesame were evaluated under rain fed condition. The seeds of the lines were sown alongside their respective controls using a randomized complete block design. The eight lines were generated from three parental stocks: NCRIBEN-04E (V1), NCRIBEN-01M (V2) and NCRIBEN-03L (V3). The three parental stocks were exposed to different doses of gamma irradiation from cobalt-60 source. 04E-550-G2-3 had the highest plant height (57.40) at the 6th week which was significantly different (P<0.05) from the three checks. 03L-450-G2-2 had the highest petiole length (12.45cm) which was significantly different (P<0.05) from the checks except check three (12.25cm) which was not significantly different (P>0.05). 03L-450-G1-2 had the highest number of leaves (91) and consequently highest number of branches (5.60). Although the number of leaves were significantly different (P<0.05) from Check three (54.60), there was no significant difference (P>0.05) between the number of branches and check three (5.40). The results obtained for vegetative parameters of M3 lines of sesame suggests that some of the genotypes could be used as potential parents for future breeding programmes aimed at improving sesame lines.


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):  
Hussein Hameed Abood Al-Umrany ◽  
Ridha Muastafa Abd-alhussein Al-ubaidy

The present experiment was carried out at one field of the research station (B) belongs to Horticulture Department/College of Agriculture/ Baghdad University during the summer season of 2017 in order to study the effect of the inoculation with the mycorrhizae and spray with FeSO4 and Anti-Transpirant (Armurox) on some growth characters and yield of okra Abelmoschus esculentus L. Moench. The experiment was lay out as a factorial experiment (2x3x2) in randomized complete block design (RCBD) with three replications. The total number of treatments was twelve. The three factors of the experiment included; the inoculation with mycorrhizae (M) (0 and 10 g. plant-1), spray with FeSO4 (F) (0, 0.5, and 1g.L-1), and the Anti-Transpirant ‘Armurox’ (A) (0 and 5 ml.L-1). The results showed that the three factors and their interactions had significant effects on most of the growth characters measured. The inoculation with the mycorrhizae was superior in giving higher values of plant height, number of branches and total number of leaves per plant; 139.97 cm, 15.00 branch. plant-1 and 165.85 leaf. plant-1, respectively. The M1F0A0 combination treatment recorded the highest number of branches per plant (16.50) while the M1F2A1 treatment recorded the highest values of plant height (145.66 cm), total leaves number (170.33 leaf. plant-1), leaf area (731.36 dcm-2. plant-1), number of pods (19.20 pod. plant-1), and plant yield (809.40 g. plant-1).


2021 ◽  
Vol 1 (2) ◽  
pp. 62-68
Author(s):  
Md Ehsanullah ◽  
Shofiul Azam Tarapder ◽  
Abu Rashed Md Maukeeb ◽  
Anayat Ullah Khan ◽  
Ahasan Ullah Khan

A field study conceded to assess the effect of pinching on growth and quality flowers yield of chrysanthemum at Horticulture Research Centre (HRC), Gazipur, Bangladesh. The research was laid out in Randomized Complete Block Design (RCBD) with six treatments and three replications. The treatment combinations were as T0- No pinching, T1- Once 40 days, T2- Once 50 days, T3- Once 60 days, T4- Twice 40 and 50 days and T5- Thrice 40, 50 and 60 days. It was observed that the highest plant height 60cm in no pinching (T0) and the lowest 45 cm was recorded by pinching the plants thrice (T5). Days of the first flowering (57 days) was observed where no pinching was followed and significantly delay in flowering (68 days) was recorded in in pinching the plants thrice (T5). The highest number of branches (12) was recorded in pinching the plants thrice (T5) and the lowest number of branches (05) in no pinching (T0). The maximum number of leaves (235) was recorded in pinching the plants thrice (T5) and minimum number of leaves (200) was observed in no pinching (T0). The treatment T5 (pinching the plants thrice) attained maximum plant spread (30 cm) and the treatment T0 (no pinching) attained minimum plant spread (17cm). The highest number of flower (45) was recorded in pinching the plants thrice (T5) treatment and the lowest flower (28) was observed in T0 treatment. Among the six treatment, T5 (pinching the plants thrice) showed the highest efficacy and it could be used as treatment in cultivation of Chrysanthemum indicum for growth and quality flower production.


2020 ◽  
Vol 18 (1) ◽  
pp. 161-172
Author(s):  
KN Islam ◽  
MMH Khan ◽  
MM Islam ◽  
MM Uddin ◽  
MA Latif

The study was conducted at farmers’ field of Itbaria, Patuakhali sadarupazila under Patuakhali district during January to April 2016under the agro ecological zone AEZ-13 (Ganges Tidal Flood plain). This site was located in between 22°14' and 22°29' North latitudes and in between 90°12' and 90°28' East longitudes of Bangladesh. Fifteenmungbean varieties viz., BARI Mung-1, BARI Mung-2, BARI Mung-3, BARI Mung-4, BARI Mung-5, BARI Mung-6, BINA Moog-4, BINA Moog-5, BINA Moog- 6, BINA Moog-7, BINA Moog-8, BU Mug-1, BU Mug-2, BU Mug-4 and Patuakhali local Mung were tested to select best suitable variety for costal region.The experiment was laid out in randomized complete block design (RCBD) with threereplications. Significant variation was observed among the different mungbeanvarities in respect of majority of the observed parameters.BU Mug-1 showed the tallest plant height while the tallest pod length was observed in BARI Mung-5. The highest number of branches per plant was found in BINA Moog-4 whereas the highest number of leaves per plant found for BARI Mung-6. The highest seed yield and yield attributes like number of pods per plant, number of seeds per pod and 1000 seed weight was recorded in BARI Mung-6 followed by BINA Moog-8 while Patuakhali local Mung produced the lowest yield and attributes. Most of the yield contributing factors of BARI Mung-6 wasfavorable for better yield in coastal region of Bangladesh. Hence the mungbean production can be increased by introducingBARI Mung-6 in costal region. SAARC J. Agri., 18(1): 161-172 (2020)


2021 ◽  
Vol 9 (1) ◽  
pp. 050-061
Author(s):  
Olayinka Olufemi Olaniyi ◽  
Olusola Babatunde Kehinde ◽  
Amos Adegbola Oloyede ◽  
Omotayo Olalekan Adenuga ◽  
Kayode Olufemi Ayegboyin ◽  
...  

Thirty four tea clones were sourced from Cocoa Research Institute of Nigeria tea germplasm and raised through stem cuttings for 10 months in the nursery. The experiment was laid out in a randomized complete block design (RCBD) with 3 replications in 2016. Agronomic and yield data were collected and subjected to analysis of variance. Single linkage cluster analysis (SLCA), principal component analysis (PCA) and FATCLUS analysis were employed to analyse the data. ANOVA showed considerable significant variation p<0.05 among the 34 tea genotypes. The PCA showed that Plant Height (PH) 0.39, Number of Leaves (NL) 0.38, Number of Branches (NB) 0.37, Harvestable Points (HP) 0.31, Stem Diameter 0.39 and Leaf Breadth 0.30 accounted for most of the variations observed. Axes 1, 2 and 3 of the PCA accounted for 37.23%, 15.48% and 10.75% variability respectively with cumulative value of 63.47%. The genotypes were clustered into 7 groups by FASTCLUS Analysis. The dendrogram showed that the first cluster was observed between NGC29 and NGC 47 at 0.08 level of similarity. At 0.50 level of similarity the dendrogram revealed 5 distinct groups. Therefore, variation exists among the tea germplasm in Nigeria thereby suggests further presenting opportunities for further varietal development.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Aaron Tettey Asare ◽  
Francis Mensah ◽  
Samuel Acheampong ◽  
Elvis Asare-Bediako ◽  
Jonathan Armah

Cultivation of okra in Ghana is challenged by low yield due to lack of improved varieties. Gamma irradiated okra seeds can generate genetic variability to improve the crop. Samples of 150 seeds, each of okra genotype, UCCC6, were irradiated with 400 Gy to 1000 Gy using cobalt 60 source at a dose rate exposure of 121.58 Gy/hr. There were 40 stands comprising single plant per stand in three replications per treatment in a randomized complete block design outlay. Seedling survival, plant height, number of leaves, stem diameter, number of branches, leaf length and width, days to 50% flowering, number of fruits, length and weight of fruit, number of seeds, and 100-seed weight decreased significantly (P≤0.05) with increasing doses of gamma rays. Seedling survival was highest (88%) at 400 Gy, followed by control (81%). However, 600 Gy, 800 Gy, and 1000 Gy had 61%, 41%, and 17% seedling survival, respectively, with LD50 at 720 Gy. Significant (P≤0.05) correlations existed between growth and yield components. Optimum growth and yield in okra were induced by 400 Gy but the higher doses had growth retardation effects and the induced variability can be assessed at M2 generation.


Author(s):  
Abdul Rasul Hamid Hussein Al - Obeidi - Othman Khalid Alwan

A field experiment was carried out at the research department of the Department of Horticulture and Garden Engineering of the Faculty of Agriculture- Diyala University during the agricultural season 2017 to study the effect of varieties and nutrients on the growth characteristics of three eggplant varieties. On 27-2-2017 seeds were planted The experiment included two factors: the first factor was varieties of the class Black Beauty and Vzlh V1 and the local variety (Abu torso) and called V2 Syrian class Vzlh V3, The second factor was boron (F1) and p2100 (F2) feeder concentrations, with a concentration of 100 ppm for each element and the treatment of F4, which was sprayed with distilled water. The experiment included twelve global treatments, Randomized Complete Block Design (RCBD) and showed the following results: • The local variety (V2) was superior to the rest of the varieties of plant height, leg thickness, number of branches and the average area of the paper, which reached 111.833 cm and 6.46 branches, plants 1, 2.516 cm and 144.0 sheets. 1 and 147.470 cm 2, respectively, while the proportion of chlorophyll V3 significantly above the rest of the varieties at a rate of 38.167 SPAD. • Spraying with boron and zinc (F3) with a concentration of 100ppm per component resulted in a significant increase in plant height, leg thickness, number of branches and chlorophyll ratio, with a ratio of 109.878 cm and 7.05 branches, plants 1, 2.555 cm and 148.775 leaves. Respectively. As for the ratio of the area of one leaf, the treatment of boron F1 failed 100ppm at a level of 131.676 cm2 • The treatment of V2F3 was significantly higher than the rest of the treatments for plant height, number of branches and number of leaves, with 122.3 cm, 7.40 branches, plants 1 and 165.60 leaves, respectively, while V3F3 significantly exceeded the rest of the treatments And chlorophyll ratio of 2.73 cm and 44.16 respectively.


2015 ◽  
Vol 4 (3) ◽  
pp. 150
Author(s):  
Slamet Susanto ◽  
Titistyas Gusti Aji ◽  
Arifah Rahayu

<p>ABSTRACT</p><p>The  experiment  was  aimed  at  studying  the  effect  of  number  of  branch on  vegetative  and generative growth of roselle. The experiment was conducted at Cikabayan Experimental Farm from February  to June  2009. The  experiment was  arranged  in  randomized  complete  block  design with single factor and consisted  of four levels of pruning: control (without  pruning), apex pruning with 5 branches,  apex  pruning  with  10  branches,  and  apex  pruning  with 15  branches,  each  with  three replications.  The  result  indicated  that pruning  with  different  number  of  branch  gave  effect  on decreasing  on some  variables  of  vegetative  and  generative  growth  of  roselle.  Plants experienced apex pruning with 15 branches did not show any differences on number of primary stems, number of secondary  stems,  number  of  leaves, number  of  flowers,  fresh  and  dry  weight  of  calyxes,  and anthocyanin content  in  calyxes.  Plants  experienced  pruning  with  different  number  of branches tended to have higher  anthocyanin content  than  those  on  control. Generally, plants with 15 primary branches gave the best effect on both vegetative and generative growth of roselle.</p><p>Keywords: Hibiscus sabdariffa L., pruning, branch, growth</p><p> </p><p>ABSTRAK</p><p>Penelitian  ini  bertujuan  untuk  mempelajari  pengaruh  jumlah  cabang  pada pertumbuhan vegetatif dan generatif rosela. Penelitian dilaksanakan di  Kebun Percobaan Cikabayan pada bulan Februari sampai Juni 2009. Percobaan disusun dalam rancangan acak lengkap dengan faktor tunggal dan  terdiri  dari  empat tingkat  pemangkasan:  kontrol  (tanpa  pemangkasan),  pemangkasan pucuk dengan  5  cabang,  pemangkasan  pucuk   dengan  10  cabang,  dan pemangkasan  pucuk   dengan  15 cabang,  masing-masing  dengan  tiga ulangan.  Hasil  penelitian  menunjukkan  bahwa  pemangkasan dengan  nomor yang  berbeda  dari  cabang  memberi  efek  pada  penurunan  pada  beberapa variabel pertumbuhan vegetatif dan generatif rosela. Tanaman dengan pemangkasan pucuk pada 15 cabang tidak  menunjukkan  perbedaan  pada jumlah  batang  utama,  jumlah  sekunder  batang,  jumlah  daun, jumlah bunga,  berat  segar  dan  kering  calyxes,  dan  konten  antosianin  di  calyxes. Tanaman mengalami  pemangkasan  dengan  nomor  yang  berbeda  dari cabang  cenderung  memiliki  konten antosianin  lebih  tinggi  dibandingkan pada  kontrol.  Umumnya,  tanaman  dengan  15  cabang  utama memberikan efek terbaik pada kedua pertumbuhan vegetatif dan generatif rosela.</p><p>Kata kunci: Hibiscus sabdariffa L., pemangkasan, cabang, pertumbuhan</p>


2017 ◽  
Vol 15 (2) ◽  
pp. e0702
Author(s):  
Ahmed M. M. Al Naggar ◽  
Reda Shabana ◽  
Mosaad M. Abd-El-Aleem ◽  
Zainab El-Rashidy

Because of essential economic and ecological concerns, there is increased interest worldwide in developing wheat cultivars that are more efficient in utilizing nitrogen (N) and better suited to N limitations. The objective of the present investigation was to get information on the type of gene action controlling the inheritance of wheat low-N tolerance traits in order to start a breeding program for improving such traits. Six parents of contrasting low-N tolerance were crossed in a diallel fashion. Evaluation of 6 parents, 15 F1crosses and 15 F2 crosses was done using a randomized complete block design with three replications under two levels of soil N, i.e. low-N (0 kg N/ha) and high-N (180 kg N/ha).The magnitude of dominance variance inF2's for all studied traits was much greater than that of additive variance under both high N and low N, suggesting that selection should be postponed to later segregating generations in order to eliminate masking effects of dominance variance and take advantage of the additive variance for the improvement of nitrogen use efficiency and grain yield traits. Narrow-sense heritability (h2n) in F2's was generally of higher magnitude under low-N than high-N, suggesting that it is better to practice selection for studied nitrogen efficiency and grain yield traits under low-N conditions to obtain higher values of selection gain.


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