A. Vishnuvardhan Reddy's research while affiliated with Indian Institute of Management & Research and other places
What is this page?
This page lists the scientific contributions of an author, who either does not have a ResearchGate profile, or has not yet added these contributions to their profile.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
Publications (72)
Gray mold disease of castor caused by the fungus Botryotinia ricini is responsible for disease epidemics andheavy yield losses in castor growing regions of Telangana. An experiment was conducted in castor growing areas to understand the crop-weather-disease relations using wireless sensors, disease prediction models and Decision Support System (DSS...
An experiment was carried out to evaluate the efficacy of different bio-agents and chemicals against seed andsoil borne diseases of safflower. Significantly low per cent disease incidence was recorded in treatments withbio-agents, Trichoderma harzianum Th4d SC @ 2ml/kg seed (36.8% for Alternaria leaf spot, 26.4% for wilt and18.3% for blight) and Ps...
There is continuous leaf fall due to senescence from 35-60 days after sowing (DAS) till harvest depending oncrop duration in castor which is not quantified in general for computation of total dry matter (TDM) and harvestindex (HI). By calculating HI with the TDM at harvest of the plant which excludes senesced fallen leaf weight gives high HI values...
The role of Trichoderma fungi in imparting tolerance to various fungal diseases is well known. The idea of this study was to assess the potentiality of Trichoderma in imparting tolerance to abiotic stress, in particular to salinity.In a laboratory study at Indian Institute of Oilseeds Research, Hyderabad, 15 best strains were selected out of 30. Ou...
Commercial hybrid development is one of the most common goals in crop improvement because it allows farmers to harvest considerably higher seed yields from a uniform crop with improved characteristics and enhanced crop efficiency due to the effects of heterosis. Male sterility is a practical method of producing single-cross hybrids because it elimi...
Castor cultivated as a rainfed crop in southern India experiences terminal drought stress with cessation of monsoon. Stem reserves act as an important source of carbon for the seeds getting filled when photosynthesis is inhibited by drought and therefore, the ability to mobilize stemreserves towards economic yield is an important trait in selection...
The present work was conducted to study the inherent genetic variation existing among the twenty four released & pre release cultures and use of these varieties as parents in developing new rice varieties with increased yield potential suitable for irrigated ecosystem. Principal Component Analysis revealed that first three principal components expl...
The present investigation was carried out to study the genetic components of yield and its ancillary characters in a 8 x 8 full-diallel cross between elite sesame cultivars grown in different geographical regions of India. Hayman's analysis of variance indicated the presence of both additive and dominance genetic variance for all six characters stu...
The present research focuses on the identification of stable trait specific genetic resources across the five semi�arid environments located in the four states of India. The study illustrated the existence of a wide range of variations
for most of the characters among the sunflower genotypes, which provides opportunities for genetic gain through...
सूरजमुखी (हैलिएं थस एन्नस एल.) एक महत्वपूर्णतिलहनी फसल है जिसे इसके उच्च गुणवत्ता वाले खाद्य तेल के लिए व्यापक रूप से स्वीकार किया गया है। यद्यपि सूरजमुखी सत्तर के दशक में देश में पेश की गई की एक नई फसल है, लेकिन इसने एक मजबूत स्थान बना लिया है और इसकी दिन की लम्बाईं निरपेक्षता, व्यापक अनुकू लनशीलता और अतिरिक्त इनपुट के लिए प्रतिक्रियाशीलता के कारण...
The present investigation was carried out to study genetic parameters for eight different traits viz., days to 50 per cent flowering, days to maturity, plant height, head diameter, 100 seed weight, volume weight, seed yield/plot and oil content at ICAR-Indian Institute of Oilseeds Research during rabi 2019-2020. The study included a total of 67 gen...
विशिष्ट गुणो वाली नई ं किस्मों के ्मों विकास के लिए आनुवंशिक सं साधन बुनियादी आवश्यकता हैं। इस कार्यक्रम की सुविधा के लिए, 56 देशो से कु ल 6901 कु सुम ज ं र्मप्लाज्म प्रविष्टियो के सं रक्षण के ल ं िए भाकृ अनुप-भारतीय तिलहन अनुसं धान सं स्थान में जर्मप्लाज्म प्रबं धन यूनिट ने गम्भीर प्रयास किए हैं। सं पूर्ण जर्मप्लाज्म सेट को सस्य-आर्थिक गुणो के ंसा...
This technical bulletin covered 19 sunflower varieties and 28 hybrids released through the public sector from 1980 onwards till 2018. We have mentioned all the qualitative and quantitative traits of sunflower varieties and hybrids based on DUS guidelines.
Sunflower is an important oilseed crop of India and the oil is salubrious.
Although there was phenomenal growth in sunflower area and production when
the crop was introduced in the country, later the area started declining due to
multiple reasons. As per the latest available records, the area hovered around
3.98 lakh ha during 2014-15 to 2018-1...
Intermittent drought is a recurrent phenomenon in several parts of the world which limits the productivity of sesame (Sesamum indicum L.) under rainfed conditions. As plant roots are the primary organs to sense soil moisture depletion, this study examined root morphological traits [(rooting depth (RL), root volume (RV), and root length density (RLD...
Six identified germplasmaccessions(RG 111, RG 298, RG 1437, RG 1494, RG 1826, RG 2797) with good root volume, dry weight and low drought susceptibility index (low DSI) along with two checks (48-1, DCH-519) were screened to understand their performance under rainfed conditions during kharif 2014 and 2015. Secondary spikes were produced only during 2...
Five sunflower hybrids and a variety were evaluated in four different centres of North Eastern Hill (NEH) regionsto study their suitability in terms of growth, yield and oil content to tap the potential rice fallow areas in NEHregions (Jharnapani, Medziphema, Tadong, and Lembucherra). Uniform layout was adopted at four locations to conduct field tr...
Leafhopper (Empoasca flavescens) is the most important sucking pest of castor during both kharif and rabiseasons causing severe hopper burn resulting in poor formation of capsules. Breeding for leafhopper resistance is a practical means of controlling this pest in castor. An accurate and simple evaluation method is crucial for identifying leafhoppe...
Since 1990s, development of wilt resistant and high yielding hybrids has played an important role in increasingthe productivity of castor from around 320 kg/ha to 1700 kg/ha. Eleven elite monoecious lines having wilt resistance were developed by hybridization using five germplasm and seven elite monoecious lines. The elite lines viz., ICS- 303, ICS...
As in any crop, in sunflower, to develop improved breeding lines having superior yield, oil content and resistantto biotic and abiotic stresses, it is essential to have genetically diverse parental lines. In this study, we used six trait specific inbred lines and allowed random mating in isolation. Through population improvement a total of 150 new...
The investigation was carried out at ICAR-Indian Institute of Oilseeds Research, Hyderabad. The material forpresent study consisted of 25 newly developed restorer lines including two checks. The data for agronomic and yield traits was recorded. Four genotypes namely CMS-1010B, RGP-58-P4-S2,RGP-26-P2 and RGP-26-P2-S2wereidentified as the most promis...
Intermittent drought, seasonal temperature variations affect yield of sesame (Sesamum indicum L.) under rainfed conditions. Sesame germplasm were assessed for intermittent drought tolerance across season under field conditions. Seed yield was significantly and positively associated with leaf traits, leaf tissue moisture and CT across seasons. The i...
The present investigation was carried out at ICAR-Indian Institute of Oilseeds Research, Hyderabad. The materialconsisted of 25 newly developed mono and multi headed restorer lines. The data for agronomic and yield traits was recorded. The genotypes, COSF-6B, COSF-7B, RGP-11-P1-S2, RGP-58-P4-S1-1 and RGP-46-P3 were identified as the most important...
Nine germplasm lines selected for root traits (volume, dry weight) along with checks were screened for droughttolerance in field by imposing drought stress from 30-90 DAS. Genotypes RG 373 and RG 1582 recorded >50g/pl.seed yield with <30% reduction in seed yield under drought stress along with low (<1.0) drought susceptibility index (DSI). These se...
The challenge of weather and soil variation in block method of planting male and female parents differ, oftenresulting in delay of flowering up to 3 to 5 days affecting pollination. Four pollen storage periods (3, 4, 5 and 6 days) was compared for seed setting and filling in female parent. The study revealed the potential of stored pollen at 4°C up...
Improvement of oil content and oil quality are the major goals in sunflower research. In the present study, a setof 60 sunflower inbred lines were evaluated for oil content and fatty acid profile. Oil content in the inbreds, rangedfrom 28.13 (GPR-58) to 41.03% (RHA-6D-1 and AKSFI-42-1). Nine inbred lines showed more than 38 percent oilcontent and o...
Indian safflower varieties possess low oleic acid content (16-20%). Therefore, high oleic (>70%) safflower oil isimported from abroad to meet the domestic needs. ICAR-Indian Institute of Oilseeds Research developed India’s first high oleic safflower variety, ISF-1, which has been notified recently for all India cultivation. ISF-1 contains 76% oleic...
Rice fallow areas are the potential regions for extending the oilseed area horizontally to utilize the residualmoisture and nutrients. The temperature regimes in the region dictates sesame sowing. An analysis of the temperature profile in the chief sesame growing region viz., Mahisapet (Dhenkanal) has indicated that the minimum temperature prevaile...
The sunflower germplasm catalogue includes information on 3216 sunflower accessions maintained at ICARIIOR and NBPGR, New Delhi. The information is on 33 morphological DUS descriptors and 8 agronomic characters.The catalogue presents comprehensive and sound scientific content aiming to increase awareness about the material and their diversity.
Rice fallow sesame in the states of Tamil Nadu, Andhra Pradesh, Telangana, Odisha and to a limited extent in eastern Indian states, is an opportunity for horizontal expansion of sesame area and its production in the country.The productivity of sesame remains abysmally low as compared to the world average and research efforts needs to be focused to...
ICH-66, a new castor hybrid has been developed at ICAR-Indian Institute of Oilseeds Research (ICAR-IIOR), Hyderabad, India and identified by Combined Varietal Identification Committee of Oilseed Crops during 2018 for release under rainfed areas of Peninsular India in kharif season. The hybrid was developed using the parents SKP-84 and ICS-164 and t...
This paper highlights the observations made regarding the influence of environmental factors on genetic purity of hybrid seed produced during the participatory seed production of two castor hybrids viz., DCH 177 (DPC 9 x DCS 9) and DCH-519 (M 574 x DCS 78) in two villages of Mahabubnagar district, Telangana. Preliminary observations indicated that...
Sunflower (Helianthus annuus L.) is one of the important oilseed crops in India mainly valued for high quality edible oil with thalamus as protein rich feed. Due to its wide adaptability, and short duration it is cultivated in all major crop growing seasons, cropping systems and soil types. The productivity of sunflower is high in northern parts of...
The objective of the study is to characterize, evaluate and classify 2149 sunflower germplasm accessions during 2011–2012 and 2012–2013 for identification of trait-specific accessions. The analysis of variance revealed significant differences among the genotypes for almost all characters which favour the selection. High heritability associated with...
Twelve best inbreds for high seed yield and oil content were utilized in crossing with two CMS lines i.e. CMS234 A and ARM243A of Helianthus petiolaris Nutt. sp. petiolaris background. All the inbreds except DRSI-305 restored fertility in CMS 234A and all the inbreds except DRSI-100 and 305 restored fertility in ARM 243A. Partial restorer reaction...
ICH-66, a new castor hybrid has been developed at ICAR-Indian Institute of Oilseeds Research (ICAR-IIOR), Hyderabad, India and identified by Combined Varietal Identification Committee of Oilseed Crops during 2018 for release under rainfed areas of Peninsular India in kharif season. The hybrid was developed using the parents SKP-84 and ICS-164 and t...
Castor is an important industrial, non-edible oilseed crop in India. India accounts for 81 per cent of world castor production and 59 per cent of global castor area. The crop is being cultivated in different agro-ecological regions of the country under both irrigated and rainfed conditions. Despite the phenomenal increase witnessed in the productio...
Sunflower crop is introduced to India in the early 70’s and within four and half decades of its introduction it has emerged as one of the most important oilseed crops in Indian oilseed scenario. The crop by virtue of its wide adaptability has established itself as a major oilseed crop in southern part of the country and during the last decade has m...
The large number of Helianthus species that are adapted to a wide number of different pests and pathogens are an important resource for breeding efforts. The sunflower variety LSF-8 with tolerance to downy mildew, rust and Alternaria were derived from the cross involving H. tuberosus. The variety CO-5 (COSFV-5) with moderate resistance to Alternari...
Castor being a perennial, cross-pollinated, sexually polymorphic crop with high environmental sensitivity, initial plant breeding efforts were restricted to plant height and duration. Domestication of a wild, perennial crop to an annual crop of medium plant height and duration is the first success. Further, development of a two-line breeding system...
Rice crop is frequently prone to flooding in coastal areas due to recent trend of climate change. Three different types of floods viz., submergence during germination (anaerobic germination), flash floods (complete submergence up to 2 weeks) and stagnant flooding (30-50cm water depth) are mostly prevailing types of floods in coastal Andhra Pradesh....
Castor has been a traditional oilseed crop grown under rainfed conditions in an area of 0.35 m ha in Andhra Pradesh. However, these days, most of the dry land farmers in Andhra Pradesh are shifting from castor to Bt cotton and maize during kharif season because of less yield and remunerative returns from castor. It was mainly due to drought, botryt...
A field experiment was conducted during rabi seasons of 2007-2010 at Regional Agricultural Research Station, Palem, Andhra Pradesh in order to study the performance of rabi castor (Ricinus communis L.) in relation to four dates of sowing (October 1, October 15, November 1 and November 15) and scheduling of irrigation at three CPE levels (50, 75 and...
A field investigation was carried out during post rainy season of 2008–09 and 2009–10 to study the impact of date of sowing and irrigation regimes on castor seed yield, oil quality characteristics and fatty acid composition. Results inferred that sowing on 1st October (2.34 t ha−1) has significantly out yielded other three dates of sowing. With del...
Maintenance of genetic purity of a hybrid is essential to exploit its full potential. Genetic purity is generally assessed by conducting grow out test (GOT) where morphological and floral characters are analyzed, however results may be influenced by the environment. Further, it is expensive and time consuming. DNA based markers are rapid, reliable...
A field experiment was carried out for three years during winter seasons of 2007-08, 2008-09 and 2009-10 in the research farm of Regional Agricultural Research Station (ANGRAU), Palem, Mahabubnagar district, Andhra Pradesh in order to study the performance of rabi castor in relation to date of sowing and scheduling of irrigation with respect to gro...
A field experiment was conducted for three years during rabi seasons of 2007-08,2008-09 and 2009-10 at Regional Agricultural Research Station (ANGRAU), Palem, Mahabubnagar district, Andhra Pradesh in order to study the performance of rabi castor in relation to date of sowings and irrigation levels. No. of effective spikes/plant, number of spikes/pl...
Study of genetic diversity of parents is important as the crossing of diverse parents likely to produce more heterotic hybrids and desirable combinations in segregating generations. In the present study genetically distinct 14 genotypes of castor (drought tolerant and susceptible) were screened using 10 EST SSR markers. Twenty-three alleles were de...
Inheritance studies to understand the genetics of stem colour, internode nature, leaf shape, bloom, spiny nature of the capsule and resistance to fusarium wilt was conducted in castor in the present study utilizing two crosses viz., VP-1 x PCS-142 (VP-1 -green stem, condensed internode, cup shaped leaf, triple bloom, spiny capsule and susceptible t...
For employing diverse CMS lines belonging to different cytosterile sources in breeding programmes, knowledge on genetics of fertility restoration is pre requisite. With this objective an investigation was carried out to study the genetics on fertility restoration Fourteen crosses were made for studying the genetics of fertility restoration, five po...
Citations
... ICS-164, a monoecious inbred was developed through the pedigree method of selection involving a 48-1 × RG-1582 cross. This ICH-66 (SKP-84 × PMC-14) hybrid was released for cultivation in Andhra Pradesh, Telangana, Tamil Nadu, Karnataka, and Odisha states of India under rainfed conditions (Prabakaran et al. 2018). This hybrid is a high-yielding hybrid with a potential of 1574 kg/ha and 3375 kg/ ha under rainfed and irrigated conditions, respectively and is resistant to wilt and leaf hopper (2015-2016 to 2017-2018). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/937351098404873-1600493325738_Q64/Ch-Lavanya.jpg)
... 2019) [6] . The best option to meet the rising per capita food demand is through vertical development combined with an integrated farming system (Ramesh et al., 2019) [13] . Utilizing the rice area by integrating with location specific component through proper understanding of the system ecology will increase the system's profitability and productivity (Harisudan and Nish Sapre, 2019) [6] . ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/865211951091712-1583294012801_Q64/Kulasekaran-Ramesh.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/11431281223897342-1707987128743_Q64/Ratnakumar-Pasala.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/939649694457857-1601041353533_Q64/Harisudan-Chandrasekaran.jpg)
... Considering the high demand for oleic safflower oil, the Indian Council of Agriculture Research-Indian Institute of Oilseeds Research (ICAR-IIOR), Hyderabad, India has developed the first high oleic Indian safflower variety, ISF-1 possessing 76% oleic acid and 30% oil content (Anjani and Praduman, 2017), giving 4.41 q/ha of oleic acid as against 1.0 q/ha realized from the available safflower varieties and 16.26 q/ha of seed yield. It was released in 2018 and notified for cultivation in India in 2019 by Central Sub-Committee on Crop Standards, Notification and Release of Varieties for Agricultural Crops (Anjani et al., 2020). Though an oleic safflower variety is now available in India, the improvement of oil content in the high oleic background is still a requirement to meet the high oleic oil demand. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/276846718537732-1443016809529_Q64/Praduman-Yadav.jpg)
... Hybrids are preferred due to their strong self-fertility, uniform maturation, great yield potential and stability. SCA helps to identify which specific crosses lead to superior hybrids (Ali et al., 2017;Meena et al., 2022). Line × tester analysis provides valuable information on the genetic potential of different lines and testers (Ahmad et al., 2012;Ali et al., 2015;Bhoite et al., 2018;Memon et al., 2015). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/568873749577733-1512641479964_Q64/Hari-Prakash-Meena.jpg)
... Flash flood generally occurs because of more-than-average rainfall within a short span of time and water recedes from these fields generally within a fortnight (Reddy et al. 2015). Therefore, screening of genotypes can be done in a cemented tank with rice seedling transplanted into it. ...
... Cluster analysis and principal component analysis (PCA) are both multivariate methods used to investigate variation (Maji & Shaibu, 2012;Tiwari et al., 2020). Several researchers used multivariate analysis to efficiently exploit agro-morphological traits to define and measure variation in a variety of rice (Nachimuthu et al., 2014;Ravikumar et al., 2015). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/959392157556736-1605748323472_Q64/Venkata-Puram.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/1176972923273247-1657623620728_Q64/Boggavarapu-Kumar.jpg)
... To reduce the genetic vulnerability of commercial sunflower hybrids caused by the current usage of a single source of cytoplasm and a few fertility restoration genes, alternative sources of cytoplasmic male sterility and fertility restorers are required (Ardilla et al., 2010;Meena and Sujatha, 2013;Meena and Prabakaran 2016). Increasing the diversity of hybrid parents, especially in restorer lines, is always the main breeding goal to solve this problem (Dudhe et al., 2021). The purpose of the present study was to explore the possibility of identifying high fertility restorers based on sterility and fertility reactions in two diverse CMS sources. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272450504097832-1441968670663_Q64/Mangesh-Dudhe.jpg)
... Data of the genetic parameters was provided in the [3] . Reena et al. (2019) [5] and Sandhya sree et al. (2022) [6] . ...
... In India, the first sunflower hybrid BSH-1 (CMS-234A x RHA-274) was released for commercial cultivation in India by University of Agricultural Sciences, Bangalore (Seetharam et al., 1980). Since then many 29 hybrids have been released by public sec-tors which are in commercial cultivation (Sujatha et al., 2019). Availability of CMS and fertility restoring sources and highly cross pollinated nature of sunflower crop has made the exploitation of heterosis possible on commercial scale. ...
... A recent (Song et al. 2021) comparative transcriptome analysis of two contrasting sesame genotypes uncovered 770 and 243 uniquely upregulated genes, mostly WRKY and NAC transcription factors (TFs), in the roots of drought-tolerant sesame varieties. The influence of drought on root structural (root volume, depth, and length) and functional (total transpiration and transpiration efficiency) traits of sesame genotypes was explored by Pasala et al. (2021). They found that water treatment and soil environment impacted rooting length, but morphological traits for water extraction under intermittent drought (WS) conditions had little value. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/1156980349640705-1652857019712_Q64/Pandey-Bb-2.jpg)
