Dr Ambreen Nabi - Academia.edu (original) (raw)

Papers by Dr Ambreen Nabi

International Journal of Current Microbiology and Applied Sciences, Feb 10, 2018

Extracts from the seeds of okra is an alternative source for edible oils. The greenish yellow edi... more Extracts from the seeds of okra is an alternative source for edible oils. The greenish yellow edible oil has a pleasant taste and odour and is high in unsaturated fats like oleic acid and linolic acid. The oil content of the seeds is quite high at about 40%.

Annals of Biology, 2009

Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonem... more Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonemorpha fragrans was studied using solid and liquid Murashige and Skoog medium amended with cytokinins or their combinations with naphthalene acetic acid at 0.5 mg L-1. Results: The tested plant growth regulators combination and concentrations did not stimulate organogenesis after three subcultivations of the callus cultures on the same PGRs-amended solid medium, and when cultivated in the liquid but, formation of morphogenic callus was observed. Evaluation of biomass and camptothecin production showed that the PGRs influenced biomass and CPT yield of the callus cultures. The alkaloid yield of various explants of 3–4 weeks old axenic seedlings was higher in roots (0.019 % CPT) followed by mature seed embryos (0.0053 %), cotyledons (0.0039 %), hypocotyls (0.0024 %) and leaves (0.0017 %). There was no significant difference in the yield of CPT from callus induced from the various explants. Camptothecin yield of morphogenic callus cultures cultivated in liquid medium was lower than that of solid due to extracellular leaching effect of the alkaloid. Amount of synthesized CPT in the callus cultures also varied with the PGR type and concentration amended in the cultivation medium, and showed association with biomass production. Conclusion: Results of the present study suggest that callus cultures offer alternative tissue source for the in vitro CPT yield enhancement through biotechnological approaches, with application in the large-scale production of the alkaloid to conserve the ever decimated natural population of this medicinal woody climber for the alkaloid.

Indian journal of plant physiology, Sep 1, 2013

A field experiment was conducted at Research Farm, Division of Agronomy, SKUAST-Kashmir for two c... more A field experiment was conducted at Research Farm, Division of Agronomy, SKUAST-Kashmir for two consecutive years (2008–2009) to identify the suitable time of planting and nutrient management for optimal plant growth and yield of potato under temperate valley of Kashmir. The experiment was laid out in a split plot design with three planting dates viz, (i) 10th March, (ii) 25th March and (iii) 11th April in main plots and six combinations of inorganic and organic nutrients viz, (i) 100 % recommended dose of fertilizer (RDF), (ii) 75 % RDF + 20 t ha−1 FYM, (iii) 75 % RDF + 8 t ha−1 vermicompost, (iv) 75 % RDF + Azotobacter and PSB, (v) 75 % RDF + 20 t ha−1 FYM + Azotobacter and PSB and (vi) 75 % RDF + 8 t ha−1 vermicompost + Azotobacter and PSB in sub plots. The observations were recorded on field emergence, shoot growth, LAI, tuber growth, harvest index and yield. Among different dates of planting and nutrient management, planting on 25th March with nutrient combination of 75 % RDF + 8 t ha−1 vermicompost + Azotobacter and PSB showed better field emergence, shoot growth, tuber growth and tuber yield. It can be concluded from the study that for realizing higher tuber yields in potato under temperate conditions of Kashmir valley, the crop should be planted on 25th March and the INM must centred around 75 % RDF + 8 t ha−1 vermicompost + Azotobacter + PSB.

International Journal of Environment and Climate Change

Remote sensing technology has revolutionized agriculture management and monitoring by providing v... more Remote sensing technology has revolutionized agriculture management and monitoring by providing valuable information on crop health, soil conditions, weather patterns, and overall land management. The reflectance data are progressively being exploited in agriculture with the momenta gained in ground-based, airborne, and satellite remote sensing. The agriculture systems when managed conventionally don’t facilitate the proper utilization of resources and productivity potential of the soil. However, taking the aid of remote sensing techniques helps in boosting the productivity potential of the soil and optimizing the inputs. This paper aims to review the potential applications of remote sensing in agriculture and its role in improving productivity, resource efficiency, and sustainability. The paper discusses various remote sensing techniques, including satellite imagery, aerial photography, and sensor-based data collection, and their integration with advanced data analysis methods. Th...

Journal of Pharmacognosy and Phytochemistry, 2017

The term biodynamic is taken from Greek word bios meaning life and dynamics meaning energy. Hence... more The term biodynamic is taken from Greek word bios meaning life and dynamics meaning energy. Hence biodynamic farming refers "working with the energies which create and maintain life" (Rai and Yadav, 2005). There are two main characteristics of BD farming (Dengel, 2004). Firstly by the use of particular farming inputs made from various herbal, mineral and raw materials processed in complex ways and finally applied in small and minimal doses on soil and crops. And secondly by the observation of rhythms in nature which go beyond the most obvious influences of sun, weather and season, but which include lunar, planetary and stellar constellations. Biodynamic differs from organic farming in a way that biodynamic farms aims to become self-sufficient in compost, manure and animal feeds and moreover an astronomical calendar is used to determine auspicious planting, cultivating and harvesting times (Sharma, 2001). Biodynamic farming has increased the mean yield of potato by 10.4% and 10.9%, in carrot 17.2% and 24%, in cabbage 14.3% and 28.3% and in French bean 24.5 and 22.5% under irrigated and rainfed conditions respectively (Selvaraj and Anita, 2006). Biodynamic production of cauliflower gave a yield of 42.58t/ha as compared with 23t/ha in control where as in cabbage yield was recorded as 55.16 t/ha under biodynamic production as compared to 22.83 t/ha in organic farming Pathak and Ram, 2001). Sustainable management of natural resources, ecological farming and the production of non-toxic food of nutritional qualities will have to find their way into mainstream society and practices if these inhabitants are to survive.

Journal of Pharmacognosy and Phytochemistry, 2018

A study was carried out at Urban Technology Park, Division of Vegetable Science SKUAST-K to work ... more A study was carried out at Urban Technology Park, Division of Vegetable Science SKUAST-K to work out correlation coefficients of Vegetable Amaranthus genotypes under temperate conditions. The experiment was laid out during kharif 2016. The results depicted that the estimates of genotypic correlation coefficients were in general slightly higher than the corresponding phenotypic correlation coefficients showing that the influence of environment was less indicating the presence of inherent association between various characters. Correlation coefficients revealed that the economically important trait i.e. leaf yield plant-1 exhibited significant and positive association with plant height, stem thickness, number of branches plant-1 , number of leaves plant-1 , leaf length, leaf area, petiole length, inflorescence length, lateral spikelet length and 1000 seed weight both at genotypic and phenotypic levels. Leaf yield plant-1 exhibited negative and significant correlation with days to germination. Plant height, inflorescence length, 1000 seed weight, petiole length, ascorbic acid content, anthocyanin content, leaf area, total chlorophyll content and fiber content recorded highest direct effect on leaf yield plant-1 as depicted by path coefficient analysis.

Society for Community Mobilization for Sustainable Development, 2021

International Journal of Plant & Soil Science, 2021

Front Line Demonstration (FLD) Programme on Shalimar Rice-4 was carried out during the four succe... more Front Line Demonstration (FLD) Programme on Shalimar Rice-4 was carried out during the four successive years of 2018, 2019, 2020and 2021on the farmers field. The farmers were selected from different villages of the district Budgam. The variety SR-4 was used in the demonstrated plots atfarmers’ field where different field operations were carried out according to the package of practices of SKUAST-K. During the FLD programme the average seed yield of SR-4 during the four years was 85q/hain demonstrated fields as compared to50.5q/ha seed obtained from the local check (China-1039).The average technology gap over the four years was found to be 2.08q/ha and extension gap 34.56q/ha. The average technology index was 3.18 per cent. Higher gross returns (Rs. 1,30,013 ha-1), net returns (89,637.5 ha-1) with a benefit-cost ratio of 2.22 were found in demonstrated fields as compared to 1.38 in case of local check. The higher yield is attributed to the introduction of newly released SKUAST K high...

African Journal of Agricultural Research, Dec 5, 2012

Germplasm evaluation for yield and fruit quality traits in

Annals of Biology, 2009

Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonem... more Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonemorpha fragrans was studied using solid and liquid Murashige and Skoog medium amended with cytokinins or their combinations with naphthalene acetic acid at 0.5 mg L-1. Results: The tested plant growth regulators combination and concentrations did not stimulate organogenesis after three subcultivations of the callus cultures on the same PGRs-amended solid medium, and when cultivated in the liquid but, formation of morphogenic callus was observed. Evaluation of biomass and camptothecin production showed that the PGRs influenced biomass and CPT yield of the callus cultures. The alkaloid yield of various explants of 3–4 weeks old axenic seedlings was higher in roots (0.019 % CPT) followed by mature seed embryos (0.0053 %), cotyledons (0.0039 %), hypocotyls (0.0024 %) and leaves (0.0017 %). There was no significant difference in the yield of CPT from callus induced from the various explants. Camptothecin yield of morphogenic callus cultures cultivated in liquid medium was lower than that of solid due to extracellular leaching effect of the alkaloid. Amount of synthesized CPT in the callus cultures also varied with the PGR type and concentration amended in the cultivation medium, and showed association with biomass production. Conclusion: Results of the present study suggest that callus cultures offer alternative tissue source for the in vitro CPT yield enhancement through biotechnological approaches, with application in the large-scale production of the alkaloid to conserve the ever decimated natural population of this medicinal woody climber for the alkaloid.

Journal of Experimental Agriculture International, 2021

Twenty-nine genotypes of cherry tomato (Solanum lycopersicum L. var. cerasiforme) were evaluated ... more Twenty-nine genotypes of cherry tomato (Solanum lycopersicum L. var. cerasiforme) were evaluated for their genetic variability and heritability. A wide range of genetic variability was observed for twenty traits of cherry tomato genotypes. The analysis of variance was significant for all the characters indicating genetic variability in the genotypes under the study except number of locules per fruit. The highest phenotypic and genotypic coefficient of variation were observed for lycopene (43.12, 42.94), total carotenoids (42.82, 42.51), average fruit weight (42.52, 42.50), fruit yield per hectare (42.29, 42.24). In general Phenotypic Coefficient of Variation (PCV) was marginally higher than the corresponding Genotypic Coefficient of Variation (GCV) indicating the less influence of environment in the expression of traits under study. High heritability coupled with high genetic advance as percentage of mean was observed for almost all characters indicating that most of the traits stud...

Annals of Agri Bio Research, 2010

Progressive horticulture, 2013

The experimental materials for the present investigation consisted of ten diverse lines of sweet ... more The experimental materials for the present investigation consisted of ten diverse lines of sweet pepper. Analysis of variance revealed significant differences among the parents and crosses indicating that the materials selected for present investigation were diverse. The magnitudes of phenotypic and genotypic coefficients of variation were moderate to high depicting the ample scope for improvement through selection. The heritability (broad sense) was high (more than 87%) for all the traits except number of locules. Fruit yield per plant exhibited significant positive correlation with days to first flowering, days to first fruit set, number of branches per plant, fruit length, fruit diameter, flesh thickness, average fruit weight, number of fruits per plant and average seed weight per fruit both at genotypic and phenotypic levels.

Annals of Agri Bio Research, 2017

Journal of Pharmacognosy and Phytochemistry, 2018

The present investigation entitled “Variability analysis in Okra (Abelmoschus esculentus (L.) Moe... more The present investigation entitled “Variability analysis in Okra (Abelmoschus esculentus (L.) Moench)” was carried out at three different locations viz., Vegetable Experimental Farm, Division of Vegetable Science, SKUAST-K, Shalimar (E1), Regional Research Station and Faculty of Agriculture, Wadura (E2) and Mountain Research Centre for Field Crops, Khudwani (E3) to study the extent of genetic variability present in the materials. The observations were recorded on days to first flowering, days to first fruit picking, plant height (cm), number of nodes plant, internodal length(cm), pod length(cm), pod girth(cm), pod weight(g), number of pods plant, pod yield plant(g), number of seeds pod, 100 seed weight(g), seed yield plant and pod yield(t/ha). Analysis of variance revealed highly significant differences among parents and crosses for all traits in all environments as well as in pooled analysis indicating that the materials used for the present study were diverse. For all the traits, ...

International Journal of Current Microbiology and Applied Sciences, Feb 10, 2018

Extracts from the seeds of okra is an alternative source for edible oils. The greenish yellow edi... more Extracts from the seeds of okra is an alternative source for edible oils. The greenish yellow edible oil has a pleasant taste and odour and is high in unsaturated fats like oleic acid and linolic acid. The oil content of the seeds is quite high at about 40%.

Annals of Biology, 2009

Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonem... more Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonemorpha fragrans was studied using solid and liquid Murashige and Skoog medium amended with cytokinins or their combinations with naphthalene acetic acid at 0.5 mg L-1. Results: The tested plant growth regulators combination and concentrations did not stimulate organogenesis after three subcultivations of the callus cultures on the same PGRs-amended solid medium, and when cultivated in the liquid but, formation of morphogenic callus was observed. Evaluation of biomass and camptothecin production showed that the PGRs influenced biomass and CPT yield of the callus cultures. The alkaloid yield of various explants of 3–4 weeks old axenic seedlings was higher in roots (0.019 % CPT) followed by mature seed embryos (0.0053 %), cotyledons (0.0039 %), hypocotyls (0.0024 %) and leaves (0.0017 %). There was no significant difference in the yield of CPT from callus induced from the various explants. Camptothecin yield of morphogenic callus cultures cultivated in liquid medium was lower than that of solid due to extracellular leaching effect of the alkaloid. Amount of synthesized CPT in the callus cultures also varied with the PGR type and concentration amended in the cultivation medium, and showed association with biomass production. Conclusion: Results of the present study suggest that callus cultures offer alternative tissue source for the in vitro CPT yield enhancement through biotechnological approaches, with application in the large-scale production of the alkaloid to conserve the ever decimated natural population of this medicinal woody climber for the alkaloid.

Indian journal of plant physiology, Sep 1, 2013

A field experiment was conducted at Research Farm, Division of Agronomy, SKUAST-Kashmir for two c... more A field experiment was conducted at Research Farm, Division of Agronomy, SKUAST-Kashmir for two consecutive years (2008–2009) to identify the suitable time of planting and nutrient management for optimal plant growth and yield of potato under temperate valley of Kashmir. The experiment was laid out in a split plot design with three planting dates viz, (i) 10th March, (ii) 25th March and (iii) 11th April in main plots and six combinations of inorganic and organic nutrients viz, (i) 100 % recommended dose of fertilizer (RDF), (ii) 75 % RDF + 20 t ha−1 FYM, (iii) 75 % RDF + 8 t ha−1 vermicompost, (iv) 75 % RDF + Azotobacter and PSB, (v) 75 % RDF + 20 t ha−1 FYM + Azotobacter and PSB and (vi) 75 % RDF + 8 t ha−1 vermicompost + Azotobacter and PSB in sub plots. The observations were recorded on field emergence, shoot growth, LAI, tuber growth, harvest index and yield. Among different dates of planting and nutrient management, planting on 25th March with nutrient combination of 75 % RDF + 8 t ha−1 vermicompost + Azotobacter and PSB showed better field emergence, shoot growth, tuber growth and tuber yield. It can be concluded from the study that for realizing higher tuber yields in potato under temperate conditions of Kashmir valley, the crop should be planted on 25th March and the INM must centred around 75 % RDF + 8 t ha−1 vermicompost + Azotobacter + PSB.

International Journal of Environment and Climate Change

Remote sensing technology has revolutionized agriculture management and monitoring by providing v... more Remote sensing technology has revolutionized agriculture management and monitoring by providing valuable information on crop health, soil conditions, weather patterns, and overall land management. The reflectance data are progressively being exploited in agriculture with the momenta gained in ground-based, airborne, and satellite remote sensing. The agriculture systems when managed conventionally don’t facilitate the proper utilization of resources and productivity potential of the soil. However, taking the aid of remote sensing techniques helps in boosting the productivity potential of the soil and optimizing the inputs. This paper aims to review the potential applications of remote sensing in agriculture and its role in improving productivity, resource efficiency, and sustainability. The paper discusses various remote sensing techniques, including satellite imagery, aerial photography, and sensor-based data collection, and their integration with advanced data analysis methods. Th...

Journal of Pharmacognosy and Phytochemistry, 2017

The term biodynamic is taken from Greek word bios meaning life and dynamics meaning energy. Hence... more The term biodynamic is taken from Greek word bios meaning life and dynamics meaning energy. Hence biodynamic farming refers "working with the energies which create and maintain life" (Rai and Yadav, 2005). There are two main characteristics of BD farming (Dengel, 2004). Firstly by the use of particular farming inputs made from various herbal, mineral and raw materials processed in complex ways and finally applied in small and minimal doses on soil and crops. And secondly by the observation of rhythms in nature which go beyond the most obvious influences of sun, weather and season, but which include lunar, planetary and stellar constellations. Biodynamic differs from organic farming in a way that biodynamic farms aims to become self-sufficient in compost, manure and animal feeds and moreover an astronomical calendar is used to determine auspicious planting, cultivating and harvesting times (Sharma, 2001). Biodynamic farming has increased the mean yield of potato by 10.4% and 10.9%, in carrot 17.2% and 24%, in cabbage 14.3% and 28.3% and in French bean 24.5 and 22.5% under irrigated and rainfed conditions respectively (Selvaraj and Anita, 2006). Biodynamic production of cauliflower gave a yield of 42.58t/ha as compared with 23t/ha in control where as in cabbage yield was recorded as 55.16 t/ha under biodynamic production as compared to 22.83 t/ha in organic farming Pathak and Ram, 2001). Sustainable management of natural resources, ecological farming and the production of non-toxic food of nutritional qualities will have to find their way into mainstream society and practices if these inhabitants are to survive.

Journal of Pharmacognosy and Phytochemistry, 2018

A study was carried out at Urban Technology Park, Division of Vegetable Science SKUAST-K to work ... more A study was carried out at Urban Technology Park, Division of Vegetable Science SKUAST-K to work out correlation coefficients of Vegetable Amaranthus genotypes under temperate conditions. The experiment was laid out during kharif 2016. The results depicted that the estimates of genotypic correlation coefficients were in general slightly higher than the corresponding phenotypic correlation coefficients showing that the influence of environment was less indicating the presence of inherent association between various characters. Correlation coefficients revealed that the economically important trait i.e. leaf yield plant-1 exhibited significant and positive association with plant height, stem thickness, number of branches plant-1 , number of leaves plant-1 , leaf length, leaf area, petiole length, inflorescence length, lateral spikelet length and 1000 seed weight both at genotypic and phenotypic levels. Leaf yield plant-1 exhibited negative and significant correlation with days to germination. Plant height, inflorescence length, 1000 seed weight, petiole length, ascorbic acid content, anthocyanin content, leaf area, total chlorophyll content and fiber content recorded highest direct effect on leaf yield plant-1 as depicted by path coefficient analysis.

Society for Community Mobilization for Sustainable Development, 2021

International Journal of Plant & Soil Science, 2021

Front Line Demonstration (FLD) Programme on Shalimar Rice-4 was carried out during the four succe... more Front Line Demonstration (FLD) Programme on Shalimar Rice-4 was carried out during the four successive years of 2018, 2019, 2020and 2021on the farmers field. The farmers were selected from different villages of the district Budgam. The variety SR-4 was used in the demonstrated plots atfarmers’ field where different field operations were carried out according to the package of practices of SKUAST-K. During the FLD programme the average seed yield of SR-4 during the four years was 85q/hain demonstrated fields as compared to50.5q/ha seed obtained from the local check (China-1039).The average technology gap over the four years was found to be 2.08q/ha and extension gap 34.56q/ha. The average technology index was 3.18 per cent. Higher gross returns (Rs. 1,30,013 ha-1), net returns (89,637.5 ha-1) with a benefit-cost ratio of 2.22 were found in demonstrated fields as compared to 1.38 in case of local check. The higher yield is attributed to the introduction of newly released SKUAST K high...

African Journal of Agricultural Research, Dec 5, 2012

Germplasm evaluation for yield and fruit quality traits in

Annals of Biology, 2009

Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonem... more Background: In vitro morphogenic response of mature seed embryo-induced callus cultures of Chonemorpha fragrans was studied using solid and liquid Murashige and Skoog medium amended with cytokinins or their combinations with naphthalene acetic acid at 0.5 mg L-1. Results: The tested plant growth regulators combination and concentrations did not stimulate organogenesis after three subcultivations of the callus cultures on the same PGRs-amended solid medium, and when cultivated in the liquid but, formation of morphogenic callus was observed. Evaluation of biomass and camptothecin production showed that the PGRs influenced biomass and CPT yield of the callus cultures. The alkaloid yield of various explants of 3–4 weeks old axenic seedlings was higher in roots (0.019 % CPT) followed by mature seed embryos (0.0053 %), cotyledons (0.0039 %), hypocotyls (0.0024 %) and leaves (0.0017 %). There was no significant difference in the yield of CPT from callus induced from the various explants. Camptothecin yield of morphogenic callus cultures cultivated in liquid medium was lower than that of solid due to extracellular leaching effect of the alkaloid. Amount of synthesized CPT in the callus cultures also varied with the PGR type and concentration amended in the cultivation medium, and showed association with biomass production. Conclusion: Results of the present study suggest that callus cultures offer alternative tissue source for the in vitro CPT yield enhancement through biotechnological approaches, with application in the large-scale production of the alkaloid to conserve the ever decimated natural population of this medicinal woody climber for the alkaloid.

Journal of Experimental Agriculture International, 2021

Twenty-nine genotypes of cherry tomato (Solanum lycopersicum L. var. cerasiforme) were evaluated ... more Twenty-nine genotypes of cherry tomato (Solanum lycopersicum L. var. cerasiforme) were evaluated for their genetic variability and heritability. A wide range of genetic variability was observed for twenty traits of cherry tomato genotypes. The analysis of variance was significant for all the characters indicating genetic variability in the genotypes under the study except number of locules per fruit. The highest phenotypic and genotypic coefficient of variation were observed for lycopene (43.12, 42.94), total carotenoids (42.82, 42.51), average fruit weight (42.52, 42.50), fruit yield per hectare (42.29, 42.24). In general Phenotypic Coefficient of Variation (PCV) was marginally higher than the corresponding Genotypic Coefficient of Variation (GCV) indicating the less influence of environment in the expression of traits under study. High heritability coupled with high genetic advance as percentage of mean was observed for almost all characters indicating that most of the traits stud...

Annals of Agri Bio Research, 2010

Progressive horticulture, 2013

The experimental materials for the present investigation consisted of ten diverse lines of sweet ... more The experimental materials for the present investigation consisted of ten diverse lines of sweet pepper. Analysis of variance revealed significant differences among the parents and crosses indicating that the materials selected for present investigation were diverse. The magnitudes of phenotypic and genotypic coefficients of variation were moderate to high depicting the ample scope for improvement through selection. The heritability (broad sense) was high (more than 87%) for all the traits except number of locules. Fruit yield per plant exhibited significant positive correlation with days to first flowering, days to first fruit set, number of branches per plant, fruit length, fruit diameter, flesh thickness, average fruit weight, number of fruits per plant and average seed weight per fruit both at genotypic and phenotypic levels.

Annals of Agri Bio Research, 2017

Journal of Pharmacognosy and Phytochemistry, 2018

The present investigation entitled “Variability analysis in Okra (Abelmoschus esculentus (L.) Moe... more The present investigation entitled “Variability analysis in Okra (Abelmoschus esculentus (L.) Moench)” was carried out at three different locations viz., Vegetable Experimental Farm, Division of Vegetable Science, SKUAST-K, Shalimar (E1), Regional Research Station and Faculty of Agriculture, Wadura (E2) and Mountain Research Centre for Field Crops, Khudwani (E3) to study the extent of genetic variability present in the materials. The observations were recorded on days to first flowering, days to first fruit picking, plant height (cm), number of nodes plant, internodal length(cm), pod length(cm), pod girth(cm), pod weight(g), number of pods plant, pod yield plant(g), number of seeds pod, 100 seed weight(g), seed yield plant and pod yield(t/ha). Analysis of variance revealed highly significant differences among parents and crosses for all traits in all environments as well as in pooled analysis indicating that the materials used for the present study were diverse. For all the traits, ...