Papers by Meenakshi Kumari
The Indian Journal of Agricultural Sciences
The demand of tomato (Solanum lycopersicum L.) and its products continue to rise due to its excel... more The demand of tomato (Solanum lycopersicum L.) and its products continue to rise due to its excellent source of antioxidants including lycopene, total carotenoids, ascorbic acid and total soluble solids. The present experiment was carried out during the autumn-winter season of 2014–2016. The seven parents were crossed in half diallel fashion and the resultant 21 F1 hybrids along with their parents and one hybrid check (BSS - 488) were evaluated in randomized complete block design with three replications for eight morpho-chemical quality component traits in tomato. The highest standard heterosis were observed in the cross Selection-12 × Pusa-120 (12.16%) for pericarp thickness, Pusa Rohini × Selection-12 (25.95%) for total soluble solids, H-86 × Pusa Rohini (23.53) for ascorbic acid, Selection-12 × CLNB (38.79) for total phenolics, Arka Alok × CLNB (46.49) for total antioxidant capacity, Pusa Rohini × Arka Alok (25.95) for lycopene and total carotenoids (29.53). Among the cro...
The Indian Journal of Agricultural Sciences
A field experiment was conducted on vegetable pea (Pisum sativum L. var. hortense) at Vegetable R... more A field experiment was conducted on vegetable pea (Pisum sativum L. var. hortense) at Vegetable Research Station, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur during 2014–17 to develop efficient integrated weed management practices. Seven different treatments, viz. pendimethalin @0.75 kg a.i./ha (pre-emergence), pendimethalin @0.75 kg a.i./ha (pre-emergence) + one hand weeding at 40 DAS, glyphosate @1.0 kg a.i./ha 15 days before sowing, glyphosate @1.0 kg a.i. /ha + one hand weeding at 40 DAS, mulching with black polythene, straw/grass mulch, hand weeding thrice at 20, 40 and 60 DAS were tested against two checks, i.e. weed free and weedy check (no weeding) in randomized block design with three replications. Vegetable pea variety ‘Azad Pea-3’ was used in the experiment. Crop was raised with recommended package of practices except treatments. Based on pooled data, among different treatments excluding weed free check, pendimethalin @0.75 kg a.i./ha (pree...
The Indian Journal of Agricultural Sciences
The phytochemical content of okra (Abelmoschus esculentus L. Moench) genotypes varied in accordan... more The phytochemical content of okra (Abelmoschus esculentus L. Moench) genotypes varied in accordance of type of compound and genotype. Out of 20 genotypes, only three genotypes (Kashi Lalima, Kashi Kranti and VROB-178) showed significantly higher amount of phytochemicals (ascorbic acid, total chlorophyll, anthocyanin, total carotenoids, total phenolics and total antioxidants activity). Among these genotypes Kashi Lalima showed highest ascorbic acid (19.63 mg/100 g) and anthocyanin content (0.14 mg/100 g) while highest chlorophyll content (5.75 mg/100 g) and total carotenoids content (1.71 mg/100 g) were recorded in Kashi Kranti. The amount of total anthocyanin and phenol compound varied from 0.08 to 0.14 mg/100 g of fresh weight (FW) and 38.88 to 62.82 (mg catechol equivalent/100 g fresh weight), respectively. The total moisture content and total crude fiber content also showed a significant difference within the range of 80.14 to 93.16% and 1.30 to 4.40 % of fresh weight, respective...
Advances in Research on Vegetable Production Under a Changing Climate Vol. 1, 2021
Journal of Agricultural Science and Technology, 2018
In this study, fifteen commercial varieties, nine exotic genotypes, and three wild species of tom... more In this study, fifteen commercial varieties, nine exotic genotypes, and three wild species of tomato grown in Eastern India were analyzed for variations in different phytochemicals viz. ascorbic acid, lycopene, total carotenoids, total phenolics content and total antioxidant capacity. Selected genotypes showed significant differences with respect to phytochemical composition. Among antioxidant property parameter, ascorbic acid content ranged between 12.62 to 76.15 mg 100 g of Fresh Weight (FW), whereas, the total phenolic content and total antioxidant capacity varied from 41.10 to 139.59 mg GAE 100 g of FW and 1.16 to 4.52 μmol Trolex Equivalent (TE) g of FW, respectively. Among carotenoid parameters, lycopene and total carotenoids content in whole tomato fruit ranged between 0.47 to 5.48 and 1.14 to 5.79 mg 100 g of FW, respectively. Interestingly, it was found that, among the evaluated genotypes, Exotic Collection (EC lines) showed significant enriched amount of these phytochemica...
Journal of Pharmacognosy and Phytochemistry, 2018
The present study was undertaken on thirty two okra genotypes along with two checks for screening... more The present study was undertaken on thirty two okra genotypes along with two checks for screening against okra yellow vein mosaic virus (OYVMV) in open field condition in rainy season. Viruses play major constraints to okra production as it is susceptible to at least 19 plant viruses, among these viruses, yellow vein mosaic virus (YVMV) causes significant losses in the okra production causing yellow vein mosaic disease. The disease pressure of OYVMV was high in rainy season crop because of high humidity and rainfall along with more multiplication of whiteflies. Infection of 100% plants in a field is very usual and yield losses range from 50 to 94%, depending on stage of crop growth at which infection occurs and its vector whitefly (Bemisia tabaci Gen.). These genotypes were screened and evaluated in open field conditions in rainy season of 2017. Of the 32 genotypes none of the test genotypes showed immunity against OYVMV disease incidence and white fly population. Response of these ...
Journal of Pharmacognosy and Phytochemistry, 2018
Tomato (Solanum lycopersicum L.) is one of the most important fruit vegetable crop in most region... more Tomato (Solanum lycopersicum L.) is one of the most important fruit vegetable crop in most regions of the world. Though, tomato is basically warm season crop, it often experiences high temperature stress during fruit-set when grown beyond its optimal temperature range of 21-24°C. Moderately elevated temperature stress (28-29°C) may not disrupt biochemical reactions fundamental for normal cell functioning since the temperature are still in the range that a tomato plant would grow normally. Lack of tolerance to high temperature in most tomato cultivars presents a major limitation for tomato growers. Increase in optimal temperature up to 2 to 4°C adversely affects gamete development and inhibits ability of pollinated flowers to develop into seeded fruits, resulting in reduced yield. High temperature stress adversely affects the vegetative as well as reproductive stages of tomato and ultimately reduces yield and quality of the fruits. In this respect a total of 200 cultivated and wild t...
Biotic Stress Management in Tomato, 2021
Potato - From Incas to All Over the World, 2018
Potato is the most important non-cereal food crop in the world, that in general represent a non-f... more Potato is the most important non-cereal food crop in the world, that in general represent a non-fattening, nutritious and wholesome food, which supply important nutrients to the human diet. The potato tubers contain considerable amounts of carbohydrates, vitamin C, essential amino acids and minerals. The potato quality includes biological traits (e.g. proteins, carbohydrates and minerals); sensorial traits (e.g. flavor, texture); and industrial traits (e.g. tuber shape, cold sweetening and starch quality). These traits are deemed very important for fresh consumption, where they are most likely to influence consumer's choice worldwide. Since most quality traits are genetically controlled, breeding work can successfully meet the quality of potato tubers and fulfills the needs of a changing and demanding world. Breeding potato for quality traits requires a continuous flow of new genes and allelic diversity into the Solanum tuberosum gene pool. However, recent advances in conventional and non-conventional breeding methods have significantly improved the possibilities of producing novel genetic variability for selection of new genotypes, especially when biotechnologists and plant breeders pool the existing resources. The genetics, biochemical and physiology of several quality traits is to be given equal importance that ultimately makes breeding efforts less empirical and more predictable.
Current Journal of Applied Science and Technology, 2019
Twenty diverse okra genotypes were evaluated to assess the genetic diversity based on quantitativ... more Twenty diverse okra genotypes were evaluated to assess the genetic diversity based on quantitative morphological and qualitative biochemical traits in a randomized block design during 2015-16. On the basis of D2 analysis, the 20 genotypes were clustered into five groups. Cluster I constituted the largest group (10 genotypes) followed by cluster II (7 genotypes). The cluster III, IV and V contains only 1 genotype in each cluster. Among phytochemical characters, carotenoids alone contribute highest percentage (39%) toward divergence, followed by chlorophyll a (31%) and anthocyanin (17%). The five principal components have accounted 81.19% of total variation and percent variation expected were 36.27% (PC1), 18.21% (PC2), 16.42% (PC3), 5.91% (PC4) and 4.38% (PC5), respectively. The PC1 has positive association with days to first flowering, followed by yield/plant, primary branches/plant, carotenoid and phenol contents. However, PC1 has negative association for fruits length, fruit diame...
Advances in Research on Vegetable Production Under a Changing Climate Vol. 1, 2021
Journal of Pharmacognosy and Phytochemistry, 2018
Vegetables contain high amount of moisture and the rate of respiration is also high therefore veg... more Vegetables contain high amount of moisture and the rate of respiration is also high therefore vegetables are highly perishable in nature, so after harvest they require proper handling and storage to preserve their quality and get full advantage of their health benefits. In India, due to improper and poor postharvest practices nearly 30-35% of its total production is lost. The major factors of postharvest losses are physiological and biochemical processes, microbial decay, high perishability and sub-standard postharvest handling infrastructures. So, it is very important to reduce the postharvest losses of vegetable by applying modern technologies. Some of the major steps for checking postharvest losses are proper handling of the produce, pre-cooling, washing and disinfection before storage. Hot water treatment, irradiation and use of edible coating are also an effective way for reduction in quality loss and suppressed pathogen infection. Apart from these, various plant growth regulat...
The Indian Journal of Agricultural Sciences
The field experiment was conducted during two consecutive years 2016-17 and 2017-18 to find out t... more The field experiment was conducted during two consecutive years 2016-17 and 2017-18 to find out the influence of weed management practices and dates of transplanting on weed, fruit yield and profitability of tomato (Solanum lycopersicum L.) at Vegetable Research Farm of Chandra Shekhar Azad University of Agricultural and Technology, Kanpur. The experiment was laid out in factorial randomized block design (FRBD) with four different dates of transplanting, viz. 15 October, 31 October, 15 November and 30 November and four type of mulches, viz. black polyethylene, white polyethylene, bio-mulch (paddy straw) and control (without mulch) replicated thrice. Tomato cultivar Azad T-6 was used in experiment. Results of the experiment revealed that the minimum weed population (4.43 and 4.26/m2) and weeds fresh weight (9.52 and 9.15 g/m2) and significantly highest marketable yield (30610 and 31418 kg/ha) and net returns (` 241460.50 and 249538.00/ha) were recorded in crop transplanted on 30 Octo...
The Indian Journal of Agricultural Sciences
Field experiment was conducted during rabi 2016-17 to 2018-19 to determine the effect of INM on o... more Field experiment was conducted during rabi 2016-17 to 2018-19 to determine the effect of INM on of yield and economic attributes of broccoli at Vegetable Farm, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. Nine different treatment combinations, viz. full recommended dose of NPK through chemical fertilizer, FYM@ 20 tonnes /ha, FYM @ 10 tonnes/ha+ half NPK through chemical fertilizer, neem cake @ 5 q/ha, neem cake @ 2.5q/ha + half NPK through chemical fertilizer, vermicompost @ 5 t/ha, vermicompost @ 2.5 t/ha + half NPK through chemical fertilizer, poultry manure @ 5 t/ha and poultry manure @ 2.5 t/ha + half NPK through chemical fertilizer were tested in randomized block design with four replications under AICRP on Vegetable Crops. Aishwarya varietyof broccoli was transplanted at a spacing of 45 cm × 45 cm. Results of the experiment revealed that the application ofvermicompost @ 2.5 t/ha + half NPK through chemical fertilizer recorded significantly highest he...
Okra is an important vegetable crop throughout the tropical and sub-tropical regions and speciall... more Okra is an important vegetable crop throughout the tropical and sub-tropical regions and specially valued for its tender and delicious fruit in different parts of the country and is generally marketed in the fresh state, but sometimes in canned or dehydrated form. India is the largest producer of okra in the world. Fruit quality plays an important role in okra productivity and marketability. Its fruit which are rich in vitamin-A, vitamin C, carotenoids, iodine, calcium, potassium and other minerals are cooked and consumed in a variety of ways. There is great extent of natural variation present in various characters among the varieties of okra leaving scope for improvement through selection. However, the storage life of okra pods is very short. Hence study of application of growth regulator to extend shelf life of okra is the need of the day. Keeping these information in mind, the present investigation was framed with the objectives: to assess the variability among okra genotypes in ...
Vegetables are highly perishable in nature due to higher moisture content and faster respiration ... more Vegetables are highly perishable in nature due to higher moisture content and faster respiration rate. In India, nearly 30-35% of its total production is deteriorate due to improper and poor postharvest handling. The physiological and biochemical processes, microbial decay, high perishability and sub-standard postharvest handling infrastructures are the major factors responsible for postharvest losses. For this reason, practices like proper handling, pre-cooling, washing and disinfection can be adopted before storage to check the postharvest losses. Few chemicals such as sodium hypochlorite, hydrogen peroxide, acetic acid are used for disinfection. However, hot water treatment can be an effective way of disinfection in organic vegetables for pathogen suppression. While, irradiation has been used as an effective means of maintaining colour, firmness, and other quality. Use of edible coating has been effective for maintaining quality and shelf life in pointed gourd. Other than these, ...
Sugar Tech, 2019
Stevia, a natural sweetener, comprises of 200 species of herbs and shrubs from the family Asterac... more Stevia, a natural sweetener, comprises of 200 species of herbs and shrubs from the family Asteraceae (Composite). The most common species of this genus and family with sweetening potential are Stevia dianthoidea, S.
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Papers by Meenakshi Kumari