Category: Issue 33

Principal Component Analysis Approach for Yield Attributing Traits in Chilli (Capsicum annum L.) Genotypes

Principal Component Analysis Approach for Yield Attributing Traits in

Chilli (Capsicum annum L.) Genotypes

Pragya Singh1*, P.K. Jain1 and Akanksha Tiwari2

1Department of Horticulture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur-482004, Madhya Pradesh, India

2Department of Plant Breeding and Genetics, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur-482004, Madhya Pradesh, India

Keywords: Chilli, Genotype, Principal Component Analysis, Variability

https://doi.org/10.37273/chesci.cs232050121 PDF


Abstract

The present investigation entitled was carried out at Horticulture Complex, Maharajpur, Jabalpur (M.P) during Rabi season of 2015-16 with eighteen genotypes in order to study the genetic diversity for different yield attributing characters of chilli by principal component analysis. In this study, out of ten principal components, only five components exhibited >0.5 eigenvalue and showed about 88.85% variability among the traits within the axes exhibited great influence on the phenotype of genotypes. The PC1 accounted for the highest variability (36.93%) to the total variability, followed by 22.87% (PC2), 15.62% (PC3), 7.46% (PC4) and 5.97% (PC5). Thus the results of the principal component analysis revealed, wide genetic variability exists in this chilli genotype accessions.


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Growth and Yield responses of Ginger (Zingiber officinale Rosc.) varieties to Elevated CO2

Growth and Yield responses of Ginger (Zingiber officinale Rosc.) varieties to

Elevated CO2

Manasa, R. V. Manju, Roy Stephen, M. M. Viji, R. Beena and G. S. Sreekala

Keywords: Elevated CO2, Ginger, varieties, growth, yield

https://doi.org/10.37273/chesci.cs242050124 • PDF


Abstract

The present study investigated the effects of CO2 enrichment on growth and yield of ginger (Zingiber officinale Rosc.). Three varieties of ginger Aswathy, Athira, and Maran were selected and grown in OTC (Open Top Chamber) enriched with 500 ppm of CO2 for a period of eight months. Intending to evaluate the impact of elevated CO2 on growth and yield. Elevated CO2 had a profound stimulatory effect on number of leaves (230.66), root fresh weight (48.87 g plant-1), shoot fresh weigh (188.83 g plant-1), tiller number (23) in Aswathy followed by Maran and Athira. Maximum fresh weight of rhizome was (228.75 g plant-1) evident in Aswathy. Although there was significant effect of e[CO2] on the three varieties, Aswathy was performing better when compared to Athira and Maran. Correlation studies revealed that plant height, number of leaves, root and shoot fresh weight, tiller number, were positively correlating to rhizome yield. These results indicate that the plant biomass and yield can be enhanced under controlled CO2 enrichment.


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Climate Change and Mango Production

Climate Change and Mango Production

Shuvadeep Halder and Md. Abu Hasan

Keywords: Climate change, extreme temperature, moisture, flowering

https://doi.org/10.37273/chesci.cs122050121  PDF


Abstract

The increasing concentration level of atmospheric CO2, which is a major factor of climate change, has to be considered for the consequences of climate change on agriculture because CO2 is involved in the key processes for plants, such as photosynthesis. Irregular cropping is the biggest problem in mango production. Inconsistent run of cool nights and relatively warm winter has adversely affected flowering in mango. Increases in extreme mean temperatures are already affecting mango production. So, rapid climate change should be a great concern irrespective of mango growers, scientists and buyers. The large diversity in genetic resources of mango is a boon for selection and breeding programs to face climatic changes. To fight against this climate change some strategies could be taken like substitution and complementation of low temperature by using growth retardant (PB Z) along with imposition of moisture stress (-75 kpa or even less) for about 4 months prior to flowering, post-harvest thinning of large branches of vigorous and late varieties grown in heavy soils to encourage soil moisture loss during winter months, digging trenches along the drip line for better drainage during monsoon and ensuring moisture stress condition during winter months, encouraging new mango plantation in light and sandy loam soils which has the capacity to loss moisture quickly, shoot pruning after harvest (impracticable for tall growing trees) to encourage more new shoots which become mature (8-9 months) at the time of flowering followed by nutrients and irrigation.


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Article CS142050122

Genetic Variability, Heritability, Correlation Coefficient and Path Analysis of Morphophysiological and Yield Related Traits of Rice under Drought Stress

Nithya, N., R. Beena, Roy Stephen, P.S. Abida, V.G. Jayalekshmi, M.M. Viji and R .V. Manju

Keywords: Drought, rice, GCV, PCV, heritability, path coefficient analysis

https://doi.org/10.37273/chesci.cs142050122  PDF


Abstract

An experiment was conducted to detect the variability, heritability and genetic advance for morphophysiologcal and yield related traits in rice under drought stress. For this study 81 genotypes were phenotyped for drought tolerance under field condition in 9×9 lattice square design with two replicates at Regional Agricultural Research Station, Pattambi during the month of Sept to Dec 2017. Drought stress was induced from panicle initiation stage for a period of 25 consecutive days by withdrawing irrigation. The result obtained from the current study showed that adequate variability was present among the genotypes for morphophysiological and yield parameters. For all ten traits tested, the phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV). High GCV and PCV were observed for yield plant-1(22.71, 23.05). Broad sense heritability varied from 57.23 for tiller number to 96.33 for grain yield. Path analysis revealed that the relative water content had maximum positive direct effect on yield. The present study revealed that for rice yield under drought stress a genotype should possess high relative water content, chlorophyll stability index and high spikelet fertility percentage.


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Diversity in Pomegranate (Punica granatum L.) Genotypes of India as Revealed by Principal Component Analysis and Cluster Analysis

Diversity in Pomegranate (Punica granatum L.) Genotypes of India as Revealed by Principal Component Analysis and Cluster Analysis

Nusrat Perveen, Sarvamangala S. Cholin, Kulapati Hipparagi and Dadapeer Peerjade

Keywords: Pomegranate, Diversity, Principal Component Analysis, Cluster Analysis

https://doi.org/10.37273/chesci.cs202050122 PDF


Abstract

Pomegranate (Punica granatum L.), belonging to the family Lythraceae, is one of the oldest and beloved fruit crops cultivated widely in several tropical and subtropical countries. In the recent past pomegranate cultivation is gaining immense popularity in India owing to its dietary and nutraceutical benefits. The present study was conducted with an objective of determining diversity present in the popular pomegranate genotypes of India for different morphological and biochemical traits and to detect the association between the genotypes using Principal Component Analysis (PCA) and Cluster Analysis (CA). Results suggest presence of considerable phenotypic and genetic diversity in the studied pomegranate genotypes. Fruit and aril traits like fruit weight, dry weight of 100 arils, fruit volume, fruit length, peel weight, aril weight and fruit diameter were found to be the most discriminating traits of the Indian pomegranate germplasm under study.


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  17. Adiletta, G., Petriccione, M., Liguori, L., Pizzolongo, F., Romano, R. and Di Matteo, M. Study of pomological traits and physico-chemical quality of pomegranate (Punica granatum L.) genotypes grown in Italy. Eur. Food Res. Tech. 2018, 244(8):1427-1438.
  18. Verma, M.K., Lal, S., Sharma, V.K., Choudhary, H. and Ahmed, N. PCA and genetic divergence analysis in pomegranate (Punica granatum L.) cultivars. Inter. J. Innovative Horti. 2019, 8(1):45-50.

Growth and Yield responses of Ginger (Zingiber officinale Rosc.) varieties to Elevated CO2

Growth and Yield responses of Ginger (Zingiber officinale Rosc.) varieties to

Elevated CO2

R. Manasa, R. V. Manju, Roy Stephen, M. M. Viji, R. Beena and G. S. Sreekala

Keywords: Elevated CO2, Ginger, varieties, growth, yield

https://doi.org/10.37273/chesci.cs242050124 PDF


Abstract

The present study investigated the effects of CO2 enrichment on growth and yield of ginger (Zingiber officinale Rosc.). Three varieties of ginger Aswathy, Athira, and Maran were selected and grown in OTC (Open Top Chamber) enriched with 500 ppm of CO2 for a period of eight months. Intending to evaluate the impact of elevated CO2 on growth and yield. Elevated CO2 had a profound stimulatory effect on number of leaves (230.66), root fresh weight (48.87 g plant-1), shoot fresh weigh (188.83 g plant-1), tiller number (23) in Aswathy followed by Maran and Athira. Maximum fresh weight of rhizome was (228.75 g plant-1) evident in Aswathy. Although there was significant effect of e[CO2] on the three varieties, Aswathy was performing better when compared to Athira and Maran. Correlation studies revealed that plant height, number of leaves, root and shoot fresh weight, tiller number, were positively correlating to rhizome yield. These results indicate that the plant biomass and yield can be enhanced under controlled CO2 enrichment.


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Biochemical Variability study in Genotype and Isolate of Alternaria Blight in Pigeonpea

Biochemical Variability study in Genotype and Isolate of Alternaria Blight in Pigeonpea

Laxman Prasad Balai, R B Singh, Asha Sinha and S M Yadav

Keywords: Alternaria blight, Pigeonpea, genotype, resistant, enzyme activity, protein, sugar and amino acids

https://doi.org/10.37273/chesci.cs252050123 PDF


Abstract

Biochemical constituent’s contents like, soluble proteins; enzyme activity, carbohydrate and amino acid are important in resistant to the crop plants and measured on four different days (70, 95, 120 &145 DAS) old plants. The contents are found of pigeonpea leaves of a set of twelve genotype, which were inoculated with representatives’ ten isolates. In the estimation of soluble protein, nitrate reductase, nitrite reductase activity, total soluble sugar, soluble reducing sugar, non reducing sugar and amino acids content have recorded in higher amounts in resistant genotype (IPA-7-2 & ICP-7220) followed by moderately resistant (DA-11 & ICP-13174) and moderately susceptible (ICP-4725 & ICP-11294), whereas lower amount susceptible (ICP-7182 & BSMR-736) genotype and highly susceptible genotype (MAL-24 & Bahar). The maximum soluble protein, enzyme activity, carbohydrate and amino acid content were found in resistant genotype at early stage of plants with minimum reduction whereas, lowest content was found in susceptible genotype old plants with highest reduction. It showed same trend in a-virulent isolate in which, lowest reduction soluble protein, enzyme activity, carbohydrate and amino acid content were found as compared to virulent (aggressive) isolate.


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Effect of time of Sowing and Chemical Treatments on Seedling Growth of Custard Apple (Annona squamosa L.) cv. Sindhan

Effect of time of Sowing and Chemical Treatments on Seedling Growth of Custard Apple (Annona squamosa L.) cv. Sindhan

B. Dadhaniya, D. R. Kanzaria, B. Sejal, T. Dhara and P. Varuti

Keywords: Custard apple, time of sowing, chemicals, seedling growth

https://doi.org/10.37273/chesci.cs072050091 PDF


Abstract

An experiment was conducted at Lalbaug, Fruit Research Station, Department of Horticulture, College of Agriculture, Junagadh Agriculture University, Junagadh during the year of 2018. The experiment laid out in Completely Randomized Design with three replications. The treatments comprised of three different levels of time of sowing (S) viz., S1 – 15th April, S2 – 15th May; S3 – 15th June and six different levels of chemicals (M) viz., M1 – Control, M2 – GA3 200 ppm soaking for 24 hours, M3 – Concentrated H2SO4 0.1% soaking for 2 minutes, M4 – Concentrated HCl 0.1% soaking for 2 minutes, M5 – Cow dung and Cow urine slurry (1:2 ratio) soaking for 24 hours and M6 – Hot water (50 to 60˚C) soaking for 24 hours. The maximum height of seedling, stem girth, number of leaves, shoot length, root length, number of roots and fresh weight of shoot individually in 15th April sowing as well as in GA3 200 ppm treatment. That among different time of sowing dates, 15th April sowing treated along with GA3 200 ppm seed soaking for 24 hours found to be the most effective for higher leaf area, dry weight of shoot, fresh and dry weight of root.


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Thermodynamic study of Green Corrosion Inhibitor on Mild Steel with Aqueous Extract of Ziziphus Jujuba Stem and Fruits in 1M HCl Solution

Thermodynamic Study of Green Corrosion Inhibitor on Mild Steel with Aqueous Extract of Ziziphus Jujuba Stem and Fruits in 1M HCl Solution

Rakesh Kumar Dubey1, Nitin Gupta2*, S.M. Nafees2 and S. Kalpana2

1Goverment College, Gangapur City, SawaiMadhopur, Rajasthan-322201

2Goverment College, Kota, Rajasthan-324001

Keywords: Ziziphus Jujuba stem, Ziziphus Jujuba fruits, Corrosion, Langmuir adsorption isotherm, Mild steel, Weight loss method

https://doi.org/10.37273/chesci.cs022050101 PDF


Abstract

The Corrosion inhibition of mild steel (MS) in 1 M HCl solution with aqueous extract of Ziziphus Jujuba stem and Ziziphus Jujuba fruits is studied by weight loss method at 303-333K temperatures. It is found that inhibition efficiency rise with increase in concentration of extract and decreased with rise in temperature. Maximum 78.05% inhibition efficiency was observed at 303 K and 8% (v/v) concentration of Ziziphus Jujuba stem. While maximum 68.60% inhibition efficiency was observed at 303 K and 8% (v/v) concentration of Ziziphus Jujuba fruits. Value observed for Activation energy, Gibbs free energy and variation in I.E. with temp Suggest physisorption. Adsorption of extract at mild steel surface follows Langmuir adsorption isotherm. Negative values of Gibbs energy reveals the spontaneity of inhibition process in extracts at studied temperatures.


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Effectiveness of Cempedak Stem Bark as Electric Mosquito Repellent Towards Aedes Aegypti Mosquito

Effectiveness of Cempedak Stem Bark as Electric Mosquito Repellent Towards

Aedes Aegypti Mosquito

Nur Halimah, Siti Hajar, Ratih Pratiwi, and Nurfajriani

Keywords: Mat, extraction, flavonoid, cempedak stem bark, DBD

https://doi.org/10.37273/chesci.CS2820501002 PDF


Abstract

Dengue Hemorrhagic Fever (DHF) is a disease transmitted through Aedes aegypti mosquitoes and almost always occurs in several regions in Indonesia every year. One alternative to overcome this problem is to use an anti-mosquito mat which is generally made from synthetic chemicals. The more environmentally friendly method is to use cempedak stem bark as a mosquito repellent mat. This study aims to determine the effectiveness of electric mosquito repellent mat from cempedak stem bark with varying concentrations. This research was carried out at the Chemistry Laboratory of FMIPA Medan State University with extraction methods namely socletation. Cempedak stem bark extract was obtained from socletation with methanol which was evaporated to produce thick cempedak stem bark extract. Then, the extract is dissolved into concentrations of 15%, 20%, 25%, 30%, and 35%. The research data obtained was the death of Aedes aegypti which was then analyzed by Variant Analysis Statistics Test (ANOVA) and Post Hoc Test. The ANOVA test results obtained that between treatments have a significant value of 0.0002. This indicates that there are significant (real) differences from the five treatment groups. Post Hoc test to determine the most effective concentration. The results show that the most effective concentration as an electric mosquito repellent mat is 30%.


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