scholarly journals Effect of edaphic and foliar applications of different doses of zinc on the yield of the Criolla Colombia cultivar

2014 ◽  
Vol 32 (1) ◽  
pp. 70-77 ◽  
Author(s):  
Andrés López ◽  
Manuel Iván Gómez ◽  
Luis Ernesto Rodríguez

The present study was carried out in a Typic Hapludand soil in the municipality of 'El Rosal' (Colombia) and aimed to compare the yield performance of the cultivar Criolla Colombia under foliar applications of Zn chelate (0, 1, 2 and 3 kg ha-1) and edaphic applications of granulated Zn sulfated (0, 1, 2 and 3 kg ha-1). A split-plot, randomized complete block design, with four repetitions per treatment, was employed. In each category, the evaluated variables were: tuber weight and number of tubers. The results revealed that the 3.0 kg ha-1 edaphic application rendered a quadratic yield behavior with a relative increase of 7.9 t ha-1 (136%) for the first category tuber weight and 9.5 t ha-1 (68%) for total weight. In turn, the foliar application of the same dose resulted in a 5.8 t ha-1 (93%) relative increase and a first category tuber total weight increase of 3.8 t ha-1 (24%). Under the edaphic and foliar Zn applications, the number of tubers underwent 77 and 86% increases, respectively, with respect to the control. These results show the importance of Zn in photoassimilate accumulation efficiency, structure differentiation and tuber quality in this short-cycle crop.

2017 ◽  
Vol 20 (1) ◽  
pp. 25-29
Author(s):  
B Ahmed ◽  
M Sultana ◽  
MAH Chowdhury ◽  
S Akhter ◽  
MJ Alam

An experiment was conducted during 20 November 2015 through March 20I6 to assess the effect of planting dates on growth and yield performance of three potential varieties of potato at Plant Physiology research field, Bangladesh Agricultural Research Institute, Gazipur. Three planting dates (November 20, December 5 and December 29) and three varieties (var. BARI Alu-35, BARI Alu-40 and BARI Alu-41) were the treatment variables. The experiment was laid out in a randomized complete block design with three replications. Maximum plant height (42.3 cm) was observed in 5 December sowing in var. BARI Alu-40. Highest number of tuber/plant (13) was recorded from December 5 sowing in var. BARI Alu-41. The highest leaf area was found in December 5 sowing of BARI Alu-40 while the lowest leaf area in November 20 sowing in var. BARI Alu-35. The highest tuber weight/plant (97.25 g) was observed in var. BARI Alu-5 at December 5 sowing and the lowest tuber weight/plant (25.58 g) in var. BARI Alu-35 at November 20 sowing. The maximum potato yield (42.12 t/ha) was obtained at December 5 sowing of BARI Alu-35 followed by same date of var. BARIAlu- 41. From the experiment it was revealed that the first decade of December is the optimum date for planting of potato due to the physiological maturity and tuber yield.Bangladesh Agron. J. 2017, 20(1): 25-29


2020 ◽  
Vol 3 (2) ◽  
pp. 193-204
Author(s):  
Kalyani Shrestha ◽  
Shrawan Kumar Sah ◽  
Reeti Singh ◽  
Yam Narayan Devkota

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.


2016 ◽  
Vol 9 (1) ◽  
pp. 41-45 ◽  
Author(s):  
SA Chowdhury ◽  
SK Paul ◽  
MAR Sarkar

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during June to December 2014 with a view to finding out the effect of variety and level of nitrogen on the yield performance of fine aromatic rice. The experiment consisted of three varieties viz. Kalizira, Binadhan-13 and BRRI dhan34, and six levels of nitrogen viz. 0, 30, 60, 90 kg N ha-1, USG 1.8 g 4 hills-1 (55 kg N ha-1) and USG 2.7 g 4 hills-1 (80 kg N ha-1). The experiment was laid out in a randomized complete block design with three replications. Variety, level of nitrogen and their interaction significantly influenced the yield of aromatic rice. The highest grain yield (3.33 t ha-1) was obtained from Binadhan-13 followed by BRRI dhan34 (3.16 t ha-1) and the lowest grain yield was found in Kalizira (2.11 t ha-1). In case of N, the tallest plant (140.3 cm), highest number of effective tillers hill-1 (11.40), grains panicle-1 (152.8), and grain yield (3.32 t ha-1) were obtained when fertilized with USG 1.8 g 4 hills-1 and the lowest values were found in 0 kg N ha-1. Therefore, Binadhan-13 fertilized with USG 1.8 g 4 hills-1 (55 kg N ha-1) appeared as the promising practice for appreciable grain yield.J. Environ. Sci. & Natural Resources, 9(1): 41-45 2016


2019 ◽  
Vol 11 (6) ◽  
pp. 556
Author(s):  
Luara Cristina de Lima ◽  
Renato Aurélio Severino de Menezes Freitas ◽  
Leandro Martins Barbero ◽  
Regina Maria Quintão Lana ◽  
Fernanda Carvalho Basso ◽  
...  

The objective of this work was to evaluate the performance of Urochloa hybrid Convert HD364 applied in different doses as a vegetable biostimulant under grazing simulation in intermittent stocking in the city of Uberlândia, Minas Gerais. The treatments consisted of a control (absence of biostimulant) and in 5 doses of biostimulant, 0.25; 0.5; 0.75; 1.0 and 1.25 L ha-1, in a randomized complete block design with 4 replicates. Productive and qualitative parameters were evaluated. The data were submitted to analysis of variance, using for the comparison of means, the Regression test at 5% of significance. The biostimulant promotes an increase in the accumulation of DM and in the rate of accumulation of forage, leaves and stems of Urochloa hybrid and reduction in the percentage of dead material and the L:S ratio of Urochloa hybrid.


Author(s):  
Abdur Rakib ◽  
M Moniruzzaman ◽  
M Hasan ◽  
MM Rahman

Note: The authorship was changed on 23.02.2016 FROM Abdur Rakib, M. Kamruzzaman1*, Soyema Khatun1 and M. Moniruzzaman2  TO Abdur Rakib1*, M. Moniruzzaman2, M. Hasan3 and M.M. Rahman3. The authorship is changed due to request of the principal author to add two co-authors of his major professor and advisory committee member of postgraduate study and two co-authors are excluded from the authorship and acknowledged them for their contribution in the manuscript.______________________________________________________________Abstract:An experiment on coriander (Coriandrum sativum L.) was conducted at the experimental field of Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during November 2012 to April 2013 to find out the suitable foliar doses and application frequency of urea and planofix (NAA). The experiment was laid out in factorial randomized complete block design with three replications. The treatment consisted of six foliar dozes viz. T1 (Tap water as control), T2 (0.10 % urea), T3 (0.25 % urea), T4 (0.40 % urea), T5 (5 ppm planofix) and T6 (10 ppm planofix) and three application frequencies viz. F1 [20 days after sowing (20 DAS)], F2 (30 DAS) and F3 (20 and 30 DAS). Maximum foliage yield (6.94 t/ha) was recorded in 10 ppm planofix coupled with it’s twice application at 20 and 30 DAS which was closely followed the foliage yield (6.33 t/ha) by 5 ppm planofix with the same application frequency. The foliage yield was increased with the increase in urea concentration. The highest foliage yield (5.37 t/ha) was also recorded from twice application of urea and planofix at 20 and 30 DAS, respectively. Planofix 10 ppm with its twice application at 20 and 30 DAS gave the highest benefit-cost of ration 2.51.Int. J. Agril. Res. Innov. & Tech. 5 (1): 40-44, June, 2015


Author(s):  
Agung Wahyu Susilo ◽  
Surip Mawardi ◽  
Sudarsianto Sudarsianto

Selection on cocoa resistance to vascular-streak dieback (VSD) has identified some resistant clones for breeding purposes. Of the resistant clones, it was selected Sca 6 and DRC 15 which performing good potential for yield. This paper reports results on testing yield potential of the clones in separate trials. Sca 6 was tested in Kottablater Estate (dry climate in the altitude of ± 25 m asl.) and DRC 15 was tested in Mumbulsari Estate (dry climate in the altitude of ± 45 m asl.) both are in Jember. Trials were arranged in the randomized complete block design with 4 blocks. Evaluation for yield performance was conducted during 6 years of harvest and stability performance was analyzed in regression term using year of harvest as the index. The results indicate the yield potential of the clones was quite similar in the level of 1.4 kg/plant and performing stability during evaluation and good adaptability in the location. The yield potential was lower than the high yielding clones but use of Sca 6 and DRC 15 in heavily infasted VSD area should be considered than using of the susceptible clones. Sca 6 performed low potential on a dry-weight bean in the range of 0.65—0.86 g (class C of quality standard) but better performance could be found in the wet area. DRC 15 performed good potential on a dryweight bean of 1.16 g (class AA of quality standard). Fat content analysis of Sca 6 indicate a better performance of beans which grown up in the wet area (58.2%) than in the dry area (49.6%). It was reported the fat content potential of DRC 15 in the level of 50.4%. Key words: Yield performance, vascular-streak dieback, resistant clone, Theobroma cacao L.


HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 760g-761
Author(s):  
Jonathan R. Schultheis ◽  
Dennis E. Adams

Boron has been used to overcome the disorder blister in varieties such as `Jewel'. `Hernandez' is an attractive, good-yielding variety with uniform shape that will consistently pack out at 80% to 90%. Over time in storage, however, roots develop blister-like symptoms, rendering roots unmarketable for fresh market. Our objective was to evaluate the effect of different B rates and application times on the yield and quality of `Hernandez' roots. Rates were varied up to 2.24 kg actual B/ha 6 days after planting, while various soil and foliar application times (6, 34, and 69 days after planting) were evaluated at 1.12 kg·ha–1. In 1994, three row plots were arranged in a randomized complete block design and replicated four times. Planting was on a deep sand to maximize the effect of the B carrier Solubor. Roots were harvested, graded, and weighed 120 days after planting and storage roots evaluated for blister-like symptoms in Mar. 1995. No significant differences in yield were attributed to B rate or application method. Blister-like symptoms were more severe when no B was applied; however, application of B did not eliminate symptoms, as most roots had the blister-like appearance. Boron application did not solve the problem, but symptoms were less apparent when some B was applied.


2016 ◽  
Vol 47 (2) ◽  
Author(s):  
N. H. Khalil

An experiment was conducted in unheated greenhouse units of the Department of Horticulture and Landscape -College of Agriculture- University of Baghdad on the first of October,   to observe the effects of amony interaction of crown diameter, chilling,  and foliar application of gibberellic acid on vegetative growth, and reproductive in cv. ‘Festival’ of strawberry (Fragaria x ananassa (Duch)). Using randomized Complete Block Design (RCBD), Plants were sorted into two groups according to crown diameter (11-15mm (Cd1)  and  6-10 mm (Cd2)), each of them sorted into two groups [Ch0 (without cold storage) and Ch1 (kept in a cold storage for  three weeks at 1-2°C), gibberellic acid was sprayed on plants, with concentration treatments included a control (G0) (distilled water), 150 mg. L–1 (G1) and 300 mg. L–1 (G2).The results showed the highest leaf number and Leaf area. Plant-1, (26.33), (29.70 dcm2) in (Cd1.Ch1.GA0) and (Cd1.Ch1. GA1) respectively, Number of stolon increased significantly by GAs application, the highest number were (8.3) in (Cd1.Ch1. GA2). The highest value of the TSS % was produced from the plants under the effect of  the treatment (Cd1.Ch1. GA0) (8.5%) and the highest pH were 3.70 from the treatment (Cd2.Ch0.GA2). The results indicated the superiority of treatment (Cd1.Ch0.GA0)     in fruit number (22.4), weight (17.77g) and a plant yield (398.2g).


2020 ◽  
Vol 5 (1) ◽  
pp. 21-26
Author(s):  
Kawsar Hossen ◽  
Sadia Sultana ◽  
Md Mahfuzar Rahman ◽  
Ruhul Amin Rana ◽  
Tahmina Ferdous ◽  
...  

Performance of salt-tolerant Boro rice was investigated under the interaction effect of variety and different doses of potassium fertilizer, which is a part of the research for developing agriculture in coastal areas of Bangladesh. A field experiment was conducted at the research field of Agriculture department, Noakhali Science and Technology University (NSTU), Noakhali-3814. The experiment was carried out in a Randomized Complete Block Design (RCBD) with three replications where two varieties viz. BINA dhan-8, BRRI dhan-28 and three doses of potassium viz. 120 kg/ha, 84 kg/ha and 36kg/ha were used as treatments. Plant height (cm), tillers/hill, grain/panicle, 1000 grain weight (g), grain yield (t/ha), straw yield (t/ha) and harvest index (%) were compared among varieties and treatments. Results revealed that only variety and only potassium fertilizer had non-significant influence but the interaction of variety and potassium fertilizer had a significant effect on the performance of salt-tolerant Boro rice. Therefore, the present study suggests that salt-tolerant BINA dhan-8 variety may be cultivated with 120 kg potassium/ha for obtaining higher yield in the southern coastal area of Bangladesh. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (1), 21-26


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.


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