scholarly journals Sequential path analysis for determining interrelationships between yield and related traits in tobacco (Nicotiana tabacum L.) under normal and abiotic stress conditions

Genetika ◽  
2014 ◽  
Vol 46 (3) ◽  
pp. 815-829
Author(s):  
Mahdi Bayat ◽  
Reza Darvishzadeh ◽  
Farough Soleimani ◽  
Seyyed Alavi
Keyword(s):  
Abiotic Stress ◽  
Stress Condition ◽  
Block Design ◽  
Dry Weight ◽  
Stress Conditions ◽  
Fresh Weight ◽  
First Order ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
First Order Variables

In the present work the relationships between yield and its related traits were investigated in tobacco genotypes under normal and abiotic stress conditions (Orobanche aegyptiaca weed) at Urmia Tobacco Research Centre, Iran, during 2006-2009 cropping seasons. The experimental design was a randomized complete block design (RCBD) with three replications in each condition every year. Analysis of variance revealed extent genetic variability among the genotypes for most of the traits studied. In comparison with normal condition, the mean value of studied traits decreased in stress condition. LAI and FD showed the maximum and minimum diminution in the mean values under stress condition compared to normal one so known as more sensitive and more tolerant traits, respectively. Based on CV values, the traits FD and DLYP showed the minimum and maximum variation among traits in both normal and stress conditions. Correlation analysis revealed significant and positive correlations between DLYP with all studied traits in both normal and stress conditions. Path analysis detected the traits including biomass, APDW and DWR as the first-order variables at normal condition and biomass, APDW, DWR and harvest index as the first-order variables under abiotic stress condition. Based on results, the traits such as biomass, APDW, DWR detected as more important factors in both conditions can be used in tobacco breeding programs for increasing yield. Abbreviation: aerial part fresh weight without leaves weight (APFW), aerial part dry weight without leaves weight (APDW), biomass (BIO), coefficient of variation (CV), dry weight of root (DWR), flowering date (FD), fresh weight of leaf (FWL), fresh weight of root (FWR), harvest index (HI), leaf area index (LAI), dry leaf yield per plant (DLYP), number of leaf (NL), plant height (PH), randomized complete block design (RCBD), standard deviation (Std).

scholarly journals RESPONSE OF ABELMOSCHUS ESCULENTUS L. FORINOCULATION WITH MYCORRHIZAE AND FOLAIR APPLICATION WITH BIO-STIMULATORS AND EFFECT ON VEGETATIVE GROWTH CHARACTERS

2020 ◽  
Vol 51 (Special) ◽  
Author(s):  
AL-Samarai & et al.
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Fresh Weight ◽  
Agricultural Engineering ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
Growth Characters ◽  
Relative Chlorophyll Content

The current study  was carried out at the Fields belongs of Horticulture  Department, Collage of Agricultural Engineering Science, University of  Baghdad, Al-Jadiriyah for the spring season 2016 -2017 to study the effect for  inoculation mycorrhizae and  folair application  with bio stimulators and their interaction in the growth characters of  (local okra  ptera). A factorial experiment  (2  in randomized complete block design (RCBD), the experiment included (12) treatment  Distributed  in three  replicates. The three factors used in this experiment included . The inoculation with control (C) Mycorrhizae  ( M ) , Biozyme  (B ) ( B1 2cm3.L-1), ( B2 4cm1-.L-1) , Phosphalas (P) (P 2cm3.L-1),  ( M + B1), ( M + B2), (P + M ), ( P + B1), (P + B2), ( M + P + B1), ( M + P + B2). The data were analyzed according to the design followed and the mean was tested by the lowest significant difference at 0.05%. The results showed a significant increase in the studied traits .  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  , Biozyme  and  Phosphalas was superior in giving higher values of  plant height  (M1B2P1) 120.00 cm,  Main branches number  per plant 13.00,  number of  leaves 197.0  (Leaf .plant -1),  leaf area  394.0 (dcm2. Leaf ),  fresh weight  of vegetative 3200 (kg. plant-1)  Dry weight of vegetative 209.0 ( g . plant-1), number of  nodules on the stem 41.33  (nod. plant -1),  relative chlorophyll content  (SAPD) respectively. The M1B2P0 combination treatment recorded the highest values of  secondary branches number  per plant 10.33. The M1B1P0 treatment recorded the highest values of diameter of stem 4.03 (cm).   

scholarly journals EFFECTS OF MYCORRHIZAE, MEDIA AND CONTAINER TYPE ON THE GROWTH OF GREEN PEPPER AND LETTUCE TRANSPLANTS

HortScience ◽  
1991 ◽  
Vol 26 (6) ◽  
pp. 709B-709 ◽  
Author(s):  
Ray A. Watson ◽  
Katrine A. Stewart ◽  
Valentin Furlan
Keyword(s):  
Plant Growth ◽  
Leaf Area ◽  
Block Design ◽  
Dry Weight ◽  
The Other ◽  
Fresh Weight ◽  
Green Pepper ◽  
Shoot Dry Weight ◽  
Randomized Complete Block Design ◽  
Container Type

The effects of two mycorrhizal species (Glomus versiforme and Glomus intraradix) and a control on the growth of green pepper, Capsicum annuum, and lettuce, Lactuca sativa, seedlings have been evaluated using four types of growing media (Peatwool, Fafard bulk mix. Cornell mix and a compost based mix) and two types of containers, Cell Packs (125 cc volume) and Pro-Trays (65 cc volume) for green pepper and Cell Packs (125 cc volume) and Plug Flats (33 cc volume) for lettuce. The experiments were split plot randomized Complete block design with 6 blocks (lettuce) and 4 blocks (pepper). Seeds were sown directly into the containers of mycorrhizal inoculated media. All treatments received the same fertilizer regime. Cell volume had no significant effects on green pepper fresh weight, dry weight, stem diameter, leaf area or leaf number but the lettuce Cell Pack plants had significantly higher fresh and dry weights, more leaves and higher leaf area. The Fafard Bulk and the Compost mix gave significantly higher fresh and dry weights than did the other two media for both green pepper and lettuce. Mycorrhizal species did not influence plant growth with the exception of leaf area in green peppers and shoot dry weight in lettuce.

scholarly journals Effect of Natural and Synthetic Mulches on Yield and Yield Attributing Parameters of Chili (Capsicum annum L. Solanaceae)

2021 ◽  
pp. 29-37
Author(s):  
Rajesh Neupane ◽  
Subin Babu Neupane ◽  
Bhawana Acharya ◽  
Shikshya Parajuli ◽  
Nischal Oli ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Field Study ◽  
Block Design ◽  
Dry Weight ◽  
Fresh Weight ◽  
Transparent Plastic ◽  
Capsicum Annum ◽  
Randomized Complete Block Design ◽  
Post Hoc

Aims: Production of chili (Capsicum annuum Linnaeus; Solanaceae) in rain-fed regions of Nepal during the winter is constrained by the limited availability of soil moisture. Mulching has been a proven tool to conserve soil moisture and enhance yield. A field study was conducted in the winter of 2019 to identify the most suitable mulch that enhances the yield and yield attributing parameters of chili. Study Design: Seven treatments with three replications were evaluated under the randomized complete block design. Among the treatments, rice straw (5 kg/plot) and water reed (5 kg/plot) were used as natural mulches. While, plastic mulches: transparent (25 µ), silver (25 µ), black (25 µ), and black thick (50 µ) (double thickness) were used as synthetic mulches. Only soil with no mulch was the control. Place and Duration of Study: The study was conducted at Bangau, Dang, Nepal from November 2019 to May 2020. Methodology: We measured soil temperature at 10 cm depth using soil thermometer, and calculated soil moisture through oven dry method. Similarly, weight of ten fresh and ten dry fruits was recorded from each plot using an electronic scale. Number of fruits per plant was also counted. All the data were analyzed using ANOVA and means were separated following a post hoc test. Results: The highest soil moisture (18.38%), number of fruits per plant (24.91), fruit fresh weight per ten fruits (59.86 g), and fruit dry weight per ten fruits (14.65 g) were recorded in black thick plastic mulched plots. Furthermore, the lowest fresh weed weight (95.30 g) was also measured in black thick plastic mulched plots. Whereas, the highest soil temperature (18.92°C) was recorded in transparent plastic mulched plots. Conclusion: This study concludes black thick plastic as the most effective among the treatments tested in this study in enhancing yield and yield attributing parameters of chili.

scholarly journals Effect of Different Rates of N and Intrarow Spacing on Growth Performance of Lettuce (Lactuca sativa L.) in Gurage Zone, Wolkite University, Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Bewuket Gashaw ◽  
Shewaye Haile
Keyword(s):  
Block Design ◽  
Maximum Yield ◽  
Dry Weight ◽  
Optimum Level ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Randomized Complete Block Design ◽  
Main Effect ◽  
Demonstration Site ◽  
Four Levels

A field experiment was conducted in Wolkite University, Horticulture department practical demonstration site, from February to June 2019 with the objective of determining the optimum level of N and intrarow spacing for better growth of lettuce. The experiment consisted of four levels of N (N0 (0 kg/ha), N1 (50 kg/ha), N2 (100 kg/ha), and N3 (150 kg/ha)) and three levels of intrarow spacing (S1 (15 × 30 cm), S2 (20 × 30 cm), and S3 (25 × 30 cm)). The interrow spacing was maintained as 30 cm. The experiment was laid out in 3 × 4 factorial arrangement in a randomized complete block design (RCBD) and replicated three times. The main effect of nitrogen resulted maximum yield (9.45 ton/ha), dry weight per plant (28.75 g), and fresh weight per plant (57.57 g) which were recorded by the application of 150 kg/ha nitrogen. Likewise, the main effect of intrarow spacing gave maximum yield (8.01 ton/ha), dry weight per plant (21.31 g), and fresh weight per plant (59.15 g) from 25 × 30 cm plant spacing. For interaction effect, the highest yield (10.38 ton/ha), dry weight per plant (50.96 g), and fresh weight per plant (77.88 g) was found from N3S3 (150 kg/ha N and 25 × 30 cm plant spacing). Therefore, in the study, area using 150 kg/ha urea with 25 × 30 cm plant spacing could be advisable for optimum lettuce production.

scholarly journals Effects of cowdung and potassium on growth and yield of Kohlrabi

2012 ◽  
Vol 10 (1) ◽  
pp. 27-32 ◽  
Author(s):  
J Sultana ◽  
M A Siddique ◽  
M H A Rashid
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Control Treatment ◽  
Fresh Weight ◽  
Treatment Combination ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Four Levels

An experiment was carried out at the Horticulture Farm of the Bangladesh Agricultural University, Mymensingh during  the period from November 2010 to January 2011 to study the effects of cowdung and potassium on growth and yield  of Kohlrabi. The experiment consisted of three levels of cowdung (0, 20 and 40 t/ha) and four levels of potassium (0,  20, 50, 80 kg /ha). The experiment was laid out in randomized complete block design with three replications. All the  parameters were significantly influenced by application of cowdung and potassium. The highest plant height (44.65  cm), number of leaves per plant (12.11), length of largest leaf (37.54 cm), and breadth of largest leaf (18.66 cm) were  obtained from the highest dose of cowdung and potassium applied (40 t cowdung + 80 kg K/ha) while the lowest  plant height (33.64 cm), number of leaves (9.01), length of largest leaf (27.94 cm), and breadth of largest leaf (11.00  cm) were obtained from control treatment combination. The highest fresh weight of leaves (49.33 g), fresh weight of  knob (328.66 g) and fresh weight of roots (66.55 g) per plant were also recorded under the treatment combination of  40 t cowdung + 80 kg K/ha, while the lowest fresh weight of leaves (22.11 g), fresh weight of knob (136.00 g) and  fresh weight of roots (23.33 g) were obtained from control treatment combination. Similarly, the dry weight of leaves  (19.34%), knob (15.19%) and roots (32.75%) were highest under the same treatment combination of 40 t cowdung +  80 kg K/ha and the lowest dry weight of leaves (11.71%), dry weight of knob (7.38%) and dry weight of roots  (15.29%) were obtained from control treatment combination C0K0. The marketable yields of knob per plot (7.86 kg)  and per hectare (39.58 tons) were also the highest under the treatment combination 40 t cowdung/ha and 80 kg  potassium per hectare.   DOI: http://dx.doi.org/10.3329/jbau.v10i1.12035   J. Bangladesh Agril. Univ. 10(1): 27–32, 2012  

Effect of different levels of sulphur and boron on growth and nodulation of garden pea (Pisum sativum L.)

2016 ◽  
Author(s):  
F. A. Parry ◽  
M. A. Chattoo ◽  
M. Magray ◽  
S. A. Ganie ◽  
Z. M. Dar ◽  
...  
Keyword(s):  
Marked Improvement ◽  
Block Design ◽  
Dry Weight ◽  
Fresh Weight ◽  
Garden Pea ◽  
Combined Application ◽  
Randomized Complete Block Design ◽  
Four Levels ◽  
Different Levels ◽  
Number Of Branches

A field experimental was conducted at Division of Vegetable Science, SKUAST-Kashmir, Shalimar during rabi 2009-2010 and 2010-2011 in randomized complete block design with sixteen treatment combinations consisting four levels of sulphur (0, 15, 30 and 45 kg S ha-1) and boron (0, 1, 2 and 3 kg B ha-1) replicated three times. Application of 30 kg S ha-1 showed marked improvement in growth and nodulation parameters in pea. Increasing dose of boron in the absence of sulphur up to 3kg ha-1 resulted marked improvement in growth and nodulation in garden pea. Higher values of plant height, number of branches plant-1, fresh weight plant-1 , dry weight plant-1, number of nodules plant-1, fresh weight of nodules plant-1ha- and dry weight of nodules plant -1 were noticed with combined application of 30 kg S + 2 kg B ha-1.

scholarly journals Yield of Potato Minitubers under Aeroponics, Optimized for Nozzle Type and Spray Direction

HortScience ◽  
2020 ◽  
Vol 55 (1) ◽  
pp. 14-22
Author(s):  
Jaime Barros da Silva Filho ◽  
Paulo Cezar Rezende Fontes ◽  
Paulo Roberto Cecon ◽  
Jorge F.S. Ferreira ◽  
Milton E. McGiffen ◽  
...  
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Dry Mass ◽  
Potato Seed ◽  
Total Biomass ◽  
Fresh Weight ◽  
Randomized Complete Block Design ◽  
Cost Efficient ◽  
Set Up ◽  
Nozzle Type

Potato seed production by conventional methods represents a sizeable investment that, when passed on to farmers, can decrease their profit margins. Potato minitubers produced by aeroponic systems are space- and cost-efficient, and they also provide healthy propagules to be used by farmers. We evaluated the effects of different misting nozzle types, with and without an antidrip feature, and spray direction on potato minituber yield using the Federal University of Viçosa (UFV) Aeroponic System. Potato plants (cv. Agata) propagated from sprouts were grown in a covered, high-density 100-L polyethylene bucket. The experiment was set up in a randomized complete block design with four replicates and eight treatments combining misting nozzle types (Fogger, MA-30, and CoolNet) with and without antidrip and comparing upward with downward spray directions. Plants were evaluated weekly from 33 to 68 days after transplant (DAT). The parameters used to evaluate treatments were number and mass of minitubers as a function of harvest times, dry mass of roots, stems, leaves, and total biomass. The number and fresh weight of minitubers, as well as root dry weight, stems, leaves, and total biomass were affected by misting nozzle types and spray direction. Treatments also affected biomass partitioning of roots, stem biomass, and the shoot:root ratio. There was also an effect of harvest time on the number and fresh weight of minitubers for various combinations of misting nozzle type and spray direction, except for minituber number with the CoolNet misting nozzle without antidrip and downward spray direction. On the basis of the assessed parameters, the best minituber production system was achieved with the Fogger spray combined with no antidrip, a rate of 12 L·h−1, and with the downward spray direction. The UFV Aeroponic System produced an average of 491 minitubers per plant. This system is simple to implement and may lead to a more affordable upscaling of potato seed minituber production.

scholarly journals GGE-Biplot Analysis for Soybean Varieties Suitability in an Agroforestry System based on Kayu Putih Stands

2019 ◽  
Vol 34 (2) ◽  
pp. 213
Author(s):  
Taufan Alam ◽  
Priyono Suryanto ◽  
Aprilia Ike Nurmalasari ◽  
Budiastuti Kurniasih
Keyword(s):  
Soil Type ◽  
Block Design ◽  
Dry Weight ◽  
Agroforestry System ◽  
High Yield ◽  
Gge Biplot ◽  
Biplot Analysis ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
Special Region

<p>The existence of genotype and environment (G x E) interaction causes difficulty in selecting suitable varieties of soybean in an agroforestry system based on <em>kayu putih</em> stands. This study aimed to determine the suitability of adaptive, stable and high yield soybean varieties in an agroforestry system based on <em>kayu putih</em> stands by using GGE-Biplot analysis. The experiment was conducted from May to August 2018 at Menggoran Forest Resort, Playen District, Gunung Kidul Regency, Special Region of Yogyakarta, Indonesia. The experiment was conducted using a randomized complete block design (RCBD) with five block as replications. The first factor was soil type in Menggoran Forest Resort, consisting of Lithic Haplusterts, Vertic Haplustalfs and Ustic Endoaquerts. The second factor was soybean varieties, consisting of Anjasmoro, Argomulyo, Burangrang, Dering I, Devon I, Gema and Grobogan. The observation was carried out on seed dry weight of soybean per hectare. The data were analyzed using Combined Analysis of Variance (ANOVA) with α = 5% and GGE-Biplot. Dering I was the most suitable varieties in an agroforestry system based on <em>kayu putih</em> stands and showed the mean of highest yield of 1.22 tons ha<sup>-1</sup>.</p>

scholarly journals Polythene Mulch and Irrigation for Mitigation of Salinity Effects on Maize (Zea mays L.)

2017 ◽  
Vol 14 (2) ◽  
pp. 1-13 ◽  
Author(s):  
M U Sikder ◽  
M Asadul Haque ◽  
R Jodder ◽  
T Kumar ◽  
D Mondal
Keyword(s):  
Zea Mays ◽  
Block Design ◽  
Irrigation Treatment ◽  
Dry Weight ◽  
Rabi Season ◽  
Fresh Weight ◽  
Shoot Dry Weight ◽  
Randomized Complete Block Design ◽  
Initiation Stage ◽  
Hybrid Maize

A pot experiment was conducted at the net house of Patuakhali Science and Technology University during rabi season 2014-15 to estimate the contribution of polythene mulch and irrigation on reducing of salinity effect on maize (Zea  mays L.). The experiment was laid out in a three factors randomized complete block design with three replications. The factors were salinity (two levels: without and 5 dS/m salinity), mulch (two levels: without and with polythene mulch) and irrigation (three levels: 125, 250 and 500 ml water/irrigation). BARI hybrid maize-7 was the test crop. Every pot received the same amount of fertilizer nutrients. Crops were harvested at tassel initiation stage. Mulch increased soil temperature by 2 to 4.5°C (with average of 3.1°C) over without mulch. In without mulch condition, salinity reduced shoot fresh and dry, and root fresh and dry weight by 28.3, 10.3, 39.4 and 30.6%, respectively. In with mulch condition, however, these reductions were 1.0, 7.2, 12.3 and 12.1 %, respectively. Polythene mulch reduced salinity induced reduction of the above parameters by 96.5, 30.1, 68.8 and 60.5 %, respectively. Under 125, 250 and 500 ml water/irrigation treatment, salinity reduced shoot fresh weight by 14.2, 19.3 and 6.7 %, respectively; shoot dry weight by 15.4, 6.6 and 5.0 %, respectively; and root fresh weight by 27.5, 20 and 11.6 %, respectively. Thus, the effect of salinity in maize was gradually decreased with the increasing amounts of irrigation water. Soil salinity reduced phosphorus and increased sulphur content in maize plants.The Agriculturists 2016; 14(2) 01-13

scholarly journals Growth and Yield of Three Turmeric Varities (Curcuma longa L.) under Mango Based Agroforestry

2020 ◽  
pp. 29-36
Author(s):  
K. N. Kona ◽  
M. S. Rahman ◽  
S. Hossain ◽  
N. Akter ◽  
M. M. Ali
Keyword(s):  
Production Systems ◽  
Curcuma Longa ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Local Varieties ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Open Control

An experiment was conducted at the Department of Agroforestry and Environment, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during 24 March 2018 to 10 January 2019, to investigate the growth and yield of different turmeric varieties under mango trees and open control. The experiment consisted of two factors with three replications. Among the two factors, one factor was two production systems: T1 =Mango + Turmeric and T2=Open control + Turmeric; the second factor was three turmeric local varieties: V1=Thailand, V2= Malshira and V3= Debipat. Interaction treatments between factor A and factor B were T1V1, T1V2, T1V3, T2V1, T2V2 and T2V3 combinations. The experiment was laid out following a Randomized Complete Block Design with three replications. Findings of the study revealed that growth and yield of turmeric significantly varied in the main effect of different agroforestry production systems. The highest fresh weight of rhizome (11000 kg/ha) was obtained in T2 and lowest (7055 kg/ha) in T1. The highest dry weight of rhizome (2126 kg/ha) was found in T2 and lowest (1456 kg/ha) was in T1. On the other hand the highest fresh weight of rhizome was 9777 kg/ha found with (V2) and lowest 8055 kg/ha with (V3), the highest dry weight of rhizome was 2013kg/ha found in V1.In case of interaction, the highest fresh rhizome weight (13611 kg/ha) and dry rhizome weight (2631 kg/ha) were recorded in T2V2 and T2V2, respectively. However, the lowest were found in T1V2 (5944 kg/ha) and T1V2 (1208 kg/ha).

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