scholarly journals EFFECTS OF CULTIVATION SYSTEMS AND CULTIVARS ON GROWTH AND YIELD PERFORMANCE OF JAPANESE EGGPLANT IN THAILAND

2021 ◽  
Vol 9 (1) ◽  
pp. 36-43
Author(s):  
Karistsapol Nooprom ◽  
◽  
Niranee Bueraheng ◽  

In the current study impacts of different cultivation systems and Japanese eggplant cultivars on their growth and yield were determined. Four Japanese eggplant cultivars viz., ‘Fullness’, ‘Black Beauty’, ‘Wasedaimaru’ and ‘Israel’ were grown under two systems of organic and conventional cultivations from 2 April to 16 July 2018 at the Faculty of Agricultural Technology, Songkhla Rajabhat University, Muang, Songkhla. The experimental arrangement used in this study was split-plots design (SPD) within a randomized complete block design (RCBD) with four replications. Results of the study indicated that ‘Wasedaimaru’ and ‘Fullness’ were suitable for growing under the organically managed production. ‘Wasedaimaru’ grown under an organic cultivation system had a lower yield per plant at 4,444.00g than grown under conventional chemical cultivation at 6,848.40g. The organic yield was not significantly different (p≤0.05) from ‘Fullness’ grown under organic cultivation at 3,947.40g. ‘Wasedaimaru’ and ‘Fullness’ were identified as suitable cultivars for production under organic cultivation in Thailand with high yield.

2017 ◽  
Vol 14 (2) ◽  
pp. 95-112
Author(s):  
M J Hussain ◽  
A J M S Karim ◽  
A R M Solaiman ◽  
M S Islam ◽  
M Rahman

A field experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during 2010-2011 to determine the effects and economic performance of urea super granule (USG) and prilled urea (PU) in terms of growth and yield of broccoli and to find out the optimum and economic doses of USG and PU for broccoli in Shallow Red-Brown Terrace Soil under Madhupur Tract. The experiment was laid out in a randomized complete block design with three replications having 17 treatment combinations constituted with different levels of urea super granule (USG) and prilled urea (PU). Result showed that yield of broccoli increased significantly with increasing rate of USG and PU. The treatments containing 160 kg N from USG and 180 kg N from PU exhibited the best performance on yield and yield contributing characters of broccoli having the head yield of 12.9 and 10.6 ton ha-1, respectively. All the yield contributing characters and the economic profitability were favorably correlated with these high yield performing treatments. The performance of USG in terms of growth, yield and yield attributes, head quality (compactness coefficient) and economic profitability was found significantly higher as compared to that of PU. Therefore, USG @ 160 kg N ha-1 and PU @ 180 kg N ha-1 alongwith other recommended fertilizerscould be suggested for broccoli production in terms of yield and economics. From quadratic equation USG @ 163 and 160 kg N ha-1 and PU @ 169 and 160 kg N ha-1 alongwith other recommended fertilizerscould be suggested as optimum and economic doses for broccoli production in Silty Clay Loam Soil of Madhupur Tract.The Agriculturists 2016; 14(2) 95-112


2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Atman ◽  
Irfan Suliansyah ◽  
Aswaldi Anwar ◽  
Syafrimen Yasin

Cultivation of true shallot seeds has the potential to be developed in Indonesia because apart from being able to reduce the cost of providing seeds, it also has higher productivity than shallot from tubers. This study aims to determine the appearance of true shallot seed varieties that have high yield potential in the highlands of West Sumatra. The study used a randomized complete block design (RCBD) with 4 treatments of true shallot seed varieties, namely, Trisula, Bima, Lokananta, and Sanren, with 6 replications. The results showed that except for the age of harvest and the number of tubers per hill, the treatment of various varieties of true shallot seeds showed a significant effect on all observed variables. Lokananta variety has better growth component, yield component, and yields compared to other varieties (Trisula, Bima, and Sanren). Cultivation of true shallot seeds in the highlands gives lower yields than in the adapted area (lowland), except for the Trisula variety. Lokananta variety is recommended for use in the highlands of West Sumatra.


2019 ◽  
Vol 11 (8) ◽  
pp. 138
Author(s):  
Reginaldo A. Medeiros ◽  
Carlos A. R. Domiciano ◽  
Vitor Leseux ◽  
Alvaro A. V. Soares ◽  
Antonio A. Tsukamoto Filho ◽  
...  

The objective of the research was to assess the growth and structural changes of clonal and seed-origin teak trees in monoculture and agroforestry systems. The experiment was established in a randomized complete block design with six replicates. Eight treatments were etablished consisting of combinations of two propagation types (clonal and seed-origin), two types of cultivation systems until the age of 24 months (monoculture and taungya system with maize) and two types of cultivation system after 24 months of age (monoculture and silvopastoral systems). The data were analyzed by modeling the growth and yield, diameter distribution and diameter class ingrowth. The technical age of thinning was then determined by the percent entries method. Independent of the cultivation system, clonal trees presented greater tree height and diameter than seed-origin trees. Regarding the cultivation systems, systems ending in a monoculture phase presented greater tree height and diameter than systems ending in a silvopastoral phase. In terms of structure, represented by the evolution of diameter distribution, seed-origin trees and systems ending in a silvopastural phase resulted in flatter and broader distributions than clonal trees and final monoculture phase. Overall, the technical age of the first thinning varied from 6 to 9 years, being earlier for clonal trees in monoculture and later for seed-origin trees in systems ending in a silvopastoral phase. The slower growth and greater variability in silvopastoral systems with seed-origin teak tree can be attributed to the genetic variability of the trees associated competition with the brachiaria grass, which also made the plants more susceptible to the attack of pests.


2019 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Siti Mudmainah ◽  
Dwi Ari Cahyani ◽  
Purwanto Purwanto

<span style="font-size: 10.0pt; line-height: 107%; font-family: 'Arial',sans-serif; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">The development of cheap and easily applied organic fertilizer technology through extraction of fertilizers into liquid organic fertilizer has become one of the simple and inexpensive technological alternatives. The variety of raw materials for making liquid compost will certainly affect nutrient content and useful microbial content. This study was aimed to examine the effect of compost tea from various compost sources enriched with biological agents to improve the growth and yield of rice plants that are cultivated organically. This study used Randomized Complete Block Design with 10 treatments and repeated three times. The treatments tried included p<sub>0</sub>: control; p<sub>1</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost; p<sub>2</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from chicken coop compost; p<sub>3</sub>: liquid compost from mushroom waste; p<sub>4</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>5</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from compost chicken coop + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>6</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from waste mushroom + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>7</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>; p<sub>8</sub>: compost tea from chicken coop compost + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>; p<sub>9</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from waste of mushroom + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>. The variables observed included plant height, number of tillers, leaf greenness, leaf area, LAI, number of productive tillers, panicle length, number of seeds per panicle, percentage of filled grain, and grain yield. The results showed that the application of <span style="mso-spacerun: yes;"> </span>liquid compost enriched with useful microorganisms had not shown its effect in increasing the growth and yield of Sintanur variety in organic cultivation. The highest yield were achieved in the treatment of liquid compost from baglog mushroom enriched with <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em> at 3.06 tons ha<sup>-1</sup>.</span>


Author(s):  
Truong Thi Hong Hai ◽  
Phan Thu Thao ◽  
Nguyen Thi Hoai Tram

Groundnut is an important oilseed crop of Vietnam and numerous countries around the world. The objective of this study is the selection of good quality groundnut varieties that have a high yield, resistance to insects and diseases, and good adaptation to Thua Thien Hue’s climate. Eleven imported groundnut varieties (nine varieties from India and two from the Research Institute For Oil And Oil Plants are examined and compared with a control. The experiments are conducted in a randomized complete block design with three replicates from December 2016 to May 2017 in Huong Long Cooperative, Hue City. The data show that all introduced groundnut varieties have a short growth period ranging from 88 to 94 days. Four imported varieties have a high pod yield. Two of them have a higher pod yield than control and are resistant to the bacterial causing wilting and black mold.


2017 ◽  
pp. 137-143
Author(s):  
Nelda Gonzaga ◽  
Sarah Lyn Pepito ◽  
Renan Octavio ◽  
Apolinario Gonzaga ◽  
Gordon Rogers

Protected cultivation is not widely used in the Philippines, despite its known benefits, because of lack of uptake by farmers who have not seen the benefits demonstrated in their region. Furthermore, lettuce can be a difficult crop to grow in the Philippines, where heavy rains can damage the delicate leafy crop. This study aimed to evaluate the performance of different lettuce varieties when grown under protected structures that prevent rain entry. The study was laid out in split-plot arranged in Randomized Complete Block Design (RCBD) with cultivation system (protected cropping & open field) as the main plot while the lettuce variety (leafy-type & head-type) as the sub-plot, replicated three times. The protective structure enhanced crown size, increased yield and produced healthier plants with reduced incidence of disease. Leafy-type obtained the largest crown size and head-type was less affected by disease in the first cropping. The study suggested that protective structures can be an asset in the enhancement and sustainability of lettuce production in preventing further damage on crops due to excessive rainfall and wind but would not be profitable when use during warmer months.


2022 ◽  
Vol 52 (5) ◽  
Author(s):  
Aniela Pilar Campos de Melo ◽  
Paulo Marçal Fernandes ◽  
Carlos de Melo e Silva-Neto ◽  
Eli Regina Barboza de Souza ◽  
Ariane Carla Campos de Melo ◽  
...  

ABSTRACT: The objective was to estimate the physiological and productive performance of potato genotypes in two organic cultivation systems. Two trials were conducted, being one in a protected and on in an open-field environment. A randomized complete block design with four replicates and five treatments (genotypes ‘Agata’, ‘Atlantic’, ‘BRS Ana’, ‘BRSIPR Bel’ and ‘BRS Clara’) was used. Physiological, productive characteristics and defects associated with tubers were obtained. The protected environment is the most appropriate to produce organic potatoes under the evaluated conditions. Genotypes ‘BRSIPR Bel’ and ‘BRS Ana’ exhibit a high productive potential in organic conditions.


2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.


2016 ◽  
Vol 96 (1) ◽  
pp. 151-159 ◽  
Author(s):  
Gan Yantai ◽  
K. Neil Harker ◽  
H. Randy Kutcher ◽  
Robert H. Gulden ◽  
Byron Irvine ◽  
...  

Optimal plant density is required to improve plant phenological traits and maximize seed yield in field crops. In this study, we determined the effect of plant density on duration of flowering, post-flowering phase, and seed yield of canola in diverse environments. The field study was conducted at 16 site-years across the major canola growing area of western Canada from 2010 to 2012. The cultivar InVigor® 5440, a glufosinate-resistant hybrid, was grown at five plant densities (20, 40, 60, 80, and 100 plants m−2) in a randomized complete block design with four replicates. Canola seed yield had a linear relationship with plant density at 8 of the 16 site-years, a quadratic relationship at 4 site-years, and there was no correlation between the two variables in the remaining 4 site-years. At site-years with low to medium productivity, canola seed yield increased by 10.2 to 14.7 kg ha−1 for every additional plant per square metre. Averaged across the 16 diverse environments, canola plants spent an average of 22% of their life cycle flowering and another 27% of the time filling seed post-flowering. Canola seed yield had a negative association with duration of flowering and a positive association with the days post-flowering but was not associated with number of days to maturity. The post-flowering period was 12.7, 14.7, and 12.6 d (or 55, 68, and 58%) longer in high-yield experiments than in low-yield experiments in 2010, 2011, and 2012, respectively. We conclude that optimization of plant density for canola seed yield varies with environment and that a longer post-flowering period is critical for increasing canola yield in western Canada.


2021 ◽  
Vol 11 (01) ◽  
pp. 736-748
Author(s):  
M. M. Hossain ◽  
◽  
S. Yesmin ◽  
M. Z. Islam ◽  
M. A. Hossain ◽  
...  

An experiment was conducted at the Sher-e-Bangla Agricultural University farm from April to June 2017 in Kharif season to evaluate the performance of two mungbean varieties under different NPK fertilizers doses in field conditions. The experiment was laid out in Randomized Complete Block Design (RCBD), comprising six treatments with three replications. In the experiment, varieties used were BARI mung-6 and BARI mung-5 and the combination of the treatment were T0 = (control), T1 (10-40-25 NPK kg ha-1), T2 (10-60-45 NPK kg ha-1), T3 (20-50-35 NPK kg ha-1), T4 (30-40-25 NPK kg ha-1) and T5 (30-40-45 NPK kg ha-1), respectively. Mungbean cultivars responded noticeably to the supplementary NPK fertilizers as the crop characters were significantly influenced by different levels of NPK fertilizers. Data were recorded on plant height, leaves plant-1, branches plant-1, pods plant-1, seeds pod-1, 1000-seed weight, seed, and straw yield at different days after sowing. Of the two varieties, BARI mung-6 gave the highest seed yield (1.72 t ha-1) next to the higher plant growth and straw yield On the contrary, BARI mung-5 cultivar produced the lowest seed yield (1.57t ha-1), plant growth, and straw yield. The results showed that T3 (20-50-35 NPK kg ha-1) treatment was the best treatment as regards plant growth and yield parameters. The highest seed yield was produced by treated plot T3 (20-50-35 NPK kg ha-1) over the untreated control plot, T1, T2, T4, and T5, respectively. As for the combined effect, V1T3 (BARI mung-6 and T3 = 20kg N + 50kg P + 35kg K ha-1) performed the best results in all growth and development characters. Therefore, the combined application of 20-50-35 kg NPK ha-1 might be considered to be found optimal to get a considerable seed yield of mungbean variety BARI mung-6.


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