scholarly journals On Farm Testing of Rice Variety NDLR-7 as an Alternative to Traditionally Grown BPT-5204 in Kurnool District of Andhra Pradesh

2020 ◽  
Author(s):  
M. Jayalakshmi ◽  
G. Prasad Babu ◽  
B. H. Chaithanya
Keyword(s):  
Andhra Pradesh ◽  
Agricultural Research ◽  
Oryza Sativa L ◽  
Gall Midge ◽  
Rice Variety ◽  
Sheath Blight ◽  
Research Station ◽  
Rural And Urban ◽  
Back Ground ◽  
On Farm

Back Ground: Rice (Oryza Sativa L.) is major crop in Andhra Pradesh being cultivated in 22.11 lakh ha average productivity of 3350Kg/ha Local BPT-5204 (samba mashuri) is high susceptibility to blast, sheath blight and gall midge. Since this is consumers’ preference both in the rural and urban markets, farmers are cultivating BPT-5204 though this variety is susceptibility to blast and BPH leads to high cost of cultivation .As an alternative to this NDLR-7 variety developed by Regional Agricultural Research Station (RARS), Nandyal, ANGRAU NDLR-7 was tolerant to blast, BPH, sheath blight, leaf folders and gall midge. Methods: NDLR-7 was introduced by KVK, Banavasi through on farm trail during 2016-17 and this trial was continued for three years as an alternative to traditionally grown BPT-5204. Result: The data from the three years of on farm trail reveals that the cost of cultivation has drastically reduced from Rs. 66050/ha to 50,538/ha due to reduced use of pesticides. The yield in demonstration plot (NDLR-7) was 7437.5 Kg/ha compared to control (5812 Kg/ha).

scholarly journals Effects of the components of conservation agriculture on the profitability of rice (Oryza sativa L.) in the Eastern Gangetic Plain of Bangladesh

2021 ◽  
Vol 7 (1) ◽  
pp. 333-337
Author(s):  
Hossain M ◽  
◽  
Begum M ◽  
Rahman M ◽  
Hashem A ◽  
...  
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Rice Variety ◽  
Conservation Agriculture ◽  
Conventional Tillage ◽  
Cost Ratio ◽  
Gangetic Plain ◽  
Benefit Cost Ratio ◽  
On Farm ◽  
Residue Retention

A two year longer on-farm research on conservation agriculture was conducted at Bhangnamari area of Bangladesh during November-June in 2014-15 and 2015-16 to evaluate the performance of non-puddled rice cultivation under increased crop residue retention. The rice variety BRRI dhan28 was transplanted under puddled conventional tillage (CT) vs. non-puddled strip tillage (ST) with 50% standing residue (R50) vs. conventional no-residue (R0) practice. The treatments were arranged in a randomized complete block design with four replications. There were no significant yield differences between tillage practices and residue levels in 2014-15. But in the following year, ST yielded 9% more grain compared to CT leading to 22% higher BCR. Retention of 50% residue increased yield by 3% over no-residue, which contributed to 10% higher benefit-cost ratio (BCR). Results of this two year on-farm study confirmed that the ST combined with 50% residue retention yielded the highest grain yield (5.81 t ha-1) which contributed to produce the highest BCR (1.06).

scholarly journals Rajdeep (IET 17713): A New Rainfed Lowland High Yielding Rice Variety for Semideep Situation

2021 ◽  
Author(s):  
Indrani Dana ◽  
Sitesh Chatterjee
Keyword(s):  
West Bengal ◽  
Insect Pests ◽  
Oryza Sativa L ◽  
Rice Variety ◽  
National Level ◽  
Stem Borer ◽  
Research Station ◽  
Wet Season ◽  
Rice Varieties ◽  
Improvement Project

In eastern India, more than 13.0 million ha of rice lands are affected by excess water and periodically suffer from flash floods and complete submergence. Most of the traditional and adapted rice varieties of this situation are low yielders. To overcome these problems the high yielding rice variety (HYV), Rajdeep (IET 17713) has been developed by Rice Research Station, Government of West Bengal, Chinsurah, Hooghly as high yielding rice variety for semideep water situation. Field experiment was conducted to evaluate the performance of promising semideep water rice (Oryza sativa L.) genotypes under lowland situation during wet season of 2002-2013. Performance of Rajdeep, semideep water rice was better and therefore it was released. It is tolerant to sheath blight, sheath rot diseases and stem borer, leaf folder insect-pests. The high yielding semideep rice variety, Rajdeep exhibited superiority over national check (Sabita), regional check (Purnendu) and local check tested in different locations under All India Coordinated Rice Improvement Project (AICRIP) trials during kharif, 2002-2003 conducted by ICAR-Indian Institute of Rice Research, Hyderabed, India. This variety was also tested in multi-locational yield trials (2003-2013) along with check variety Swarna-Sub 1/ Bhudeb at different locations of West Bengal. After testing at national level as well as at state level, based on yield performance of the variety, the HYV semideep rice variety Rajdeep was released and notified by Government of India in the Gazette of India vide Notification No. S.O. 1007(E) on 30th March, 2017.

scholarly journals Identification of promising high yielding blast resistant rice genotype for hilly conditions of Karnataka

2019 ◽  
Vol 56 (4) ◽  
pp. 375-379
Author(s):  
GN Hosagoudar ◽  
Sheshaiah
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Blast Resistance ◽  
Block Design ◽  
Research Station ◽  
Pooled Data ◽  
Resistance Trait ◽  
Resistance Reaction ◽  
Check Variety ◽  
On Farm

Rice (Oryza sativa L.) is one of the most important food crops from which nearly one third of world's population derives its principal source of calories. The experiment was conducted to discover the impending genotypes suitable for hilly situation of Karnataka. The experimental materials were chosen or selected based on significant superiority or on par yield over the local check variety, i.e., Tunga in the AICRIP investigational trials of paddy. The chosen entries were evaluated for the three years in the station trial at the Agricultural and Horticultural Research Station, Ponnampet in randomized complete block design with two replications during 2016, 2017 and 2018 kharif seasons. Third year Multi Location Trial (MLT) was also conducted at AHRS, Ponnampet and ZAHRS, Mudigere. The pooled data across the years in the station trial revealed that the entry IET-24451 recorded the utmost grain yield (6196 kg/ha) among the entries and gave up 36 per cent increased grain yield over the Tunga and 17 per cent increased grain yield over the KPR-1. The pooled data of MLT across the locations revealed that the entry IET-25281 recorded the utmost grain yield of 6076 kg/ha with 11 per cent increased grain yield over the Tunga and 13 per cent increased grain yield over the KPR-1. The combined pooled data of station trial across the years and MLT trial across locations revealed that the entry, IET-24451 of 6135 kg/ha recorded the maximum grain yield followed by IET-25281 (5970 kg/ha) among the entries. The entry IET-24451 recorded 22 per cent increased grain yield over the Tunga and 15 per cent increased grain yield over the KPR-1, whereas the entry IET-25281 recorded 19 per cent increased grain yield over the Tunga and 12 per cent increased grain yield over the KPR-1 and both the entries IET-24451 and IET-25281 recorded the leaf and neck blast resistance reaction in the Uniform Blast Nursery Screening Pattern. Hence, the entry IET-24451 was recommended for on-farm trial due to its blast resistance trait and yield superiority across the years and the locations.

scholarly journals Evaluation of Chickpea (Cicer arietinum L.) Genotypes for Yield and Drought Tolerance under Rain Fed and Irrigated Conditions

2020 ◽  
pp. 33-42
Author(s):  
R. Divya Madhuri ◽  
V. Jayalakshmi ◽  
M. Shanthi Priya
Keyword(s):  
Andhra Pradesh ◽  
Yield Loss ◽  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Research Station ◽  
Drought Tolerant ◽  
Major Constraint ◽  
Randomized Complete Block Design ◽  
The Mean

In Southern India, drought stress is a major constraint to chickpea production and yield stability. Drought tolerant index (DTI) that provides a measure of drought based on yield loss under drought condition in comparison to normal condition was used for screening drought-tolerant genotypes. This study was conducted to determine drought tolerant genotypes with high yield in stress and non-stress conditions utilising physiological traits. Thirty chickpea genotypes were tested in a randomized complete block design with three replications under rain fed and irrigated conditions at Regional Agricultural Research Station, Nandyal, Andhra Pradesh, India during rabi, 2018-2019. The analysis of variance carried out for yield and drought tolerant traits revealed highly significant differences among the genotypes for all characters under rain fed as well as irrigated conditions. NBeG 776, NBeG 779, NBeG 868, ICCV 181606, MH 13 and MH 14 are drought tolerant. NBeG 776, NBeG 779 and NBeG 868 are suitable under both rain fed and irrigated conditions with significantly higher yields over their respective means. ICCV 181606, MH 13 and MH 14 are suitable exclusively for rain fed condition with significantly superior yields over the mean.

scholarly journals Effect of on-farm trials in popularization of rice variety NDLR-7 (Nandyal Sona) in Chittoor district of Andhra Pradesh

2020 ◽  
Vol 15 (4) ◽  
pp. 315-318
Author(s):  
P. Ganesh Kumar ◽  
R. Prasanna Lakshmi ◽  
D. Subramanyam
Keyword(s):  
Andhra Pradesh ◽  
Cooking Quality ◽  
Rice Variety ◽  
Market Price ◽  
High Yield ◽  
Net Returns ◽  
Fine Grain ◽  
First Choice ◽  
Horizontal Spread ◽  
On Farm

Rice crop is grown in 43934 ha in Chittoor district of Andhra Pradesh during Kharif and Rabi. The traditional medium slender grain cultivar BPT-5204 is most popularly grown variety during Kharif and occupies 30-40 per cent of area in the district, which is susceptible to BPH and blast resulting in low yields and low net returns. Hence, on farm trials were conducted during 2012-13, 2013- 14 and 2014-15 with objective to assess the performance of new rice variety NDLR-7 which is medium slender short duration (130-135d) variety with tolerance to BPH and blast. During all the three years maximum number of BPH/sample was very low in NDLR-7 than BPT 5204 and maximum collections were recorded in November followed by October month. During all the years the variety recorded 6.1t/ha with average net returns of Rs.76,808/- per ha whereas BPT-5204 recorded 5.83t/ha with average net returns of Rs.68,542/ha. Because of its high yield, pest tolerance and good cooking quality it is widely accepted by farmers through horizontal spread of technology. Due to extension activities of KVK, Kalikiri area under NDLR-7 has been increased from 80ha in 2013-14 to 2000 ha in 2016-17 owing to its tolerance to BPH, fine grain and high market price and first choice of farmers, millers and traders.

scholarly journals Varietal performance of rice under different source of nutrition in high altitude and tribal areas of Andhra Pradesh

2021 ◽  
Vol 16 (1) ◽  
pp. 46-51
Author(s):  
A. Upendra Rao ◽  
K. Tejeswara Rao ◽  
D. Sekhar ◽  
V. Visa Lakshmi ◽  
N. Hari Satyanarayana
Keyword(s):  
Grain Yield ◽  
High Altitude ◽  
Organic Farming ◽  
Andhra Pradesh ◽  
Agricultural Research ◽  
Growth Yield ◽  
Scientific Data ◽  
Research Station ◽  
Yield Attributes ◽  
Tribal Areas

A field experiment was conducted for two consecutive Kharif seasons of 2012-13 and 2013-14 in a Split Plot Design with three replications, at Agricultural Research Station, Seethampeta, Andhra Prtadesh, India to generate scientific data on organic farming, integrated nutrient and pest management practices, chemical farming with four prominent varieties of rice viz., MTU 1001, RGL 2538, BPT 5204 and MTU 7029 in high altitude and tribal areas of Andhra Pradesh. Results showed that, grain yield of rice was reduced in organic farming by 37 per cent and 30.23 per cent compared to chemical farming and INM practices. Growth, yield attributes of rice also reduced noticeably in organic farming. Whereas, organic farming recorded higher root biomass per hill at flowering, higher post nutrient status of available nitrogen, phosphorus and potassium and lesser incidence of diseases and pests over INM and chemical farming. Chemical farming recorded higher growth, yield attributes, yield and returns. Among the cultivars, MTU 1001 showed better performance and recorded the higher grain yield and straw yields and least affected by diseases and pests compared to other varieties.

Effect of weather parameters on the population dynamics of White backed planthopper, Sogatella furcifera (Horvath) in rice

2021 ◽  
Vol 58 (1) ◽  
pp. 15-20
Author(s):  
ADVSLP Anand Kumar ◽  
N Mallikharjuna Rao ◽  
CV Rama Rao ◽  
S Krishnam Raju
Keyword(s):  
Population Dynamics ◽  
Andhra Pradesh ◽  
Agricultural Research ◽  
Abiotic Factors ◽  
Research Station ◽  
Sogatella Furcifera ◽  
Correlation Studies ◽  
Weather Parameters ◽  
Two Peaks ◽  
Second Peak

A field experiment on the population dynamics of White backed planthopper (WBPH), Sogatella furcifera (Horvath) carried out during kharif and rabi 2016-17 at Regional Agricultural Research Station, Maruteru, West Godavari District of Andhra Pradesh, India revealed that the incidence of WBPH was observed during 36th SMW (September 3-9). Its activity increased during successive weeks up to 44th SMW with two peaks, first peak at 38th SMW (September 17-23) with population of 46/10 hills and second peak at 42nd SMW (October 15-21) with population of 170/ 10 hills during kharif 2016, while WBPH was first noticed during 7th SMW (February 12-18) and population increased gradually during successive weeks and attained peak number during 13th SMW (March 26-April 1) in rabi 2016-17. Correlation studies revealed that WBPH had significant negative relation with morning relative humidity of current week during kharif 2016. None of the abiotic factors has showed significant relationship with the population of WBPH during rabi 2016-17.

Evaluation of groundnut genotypes for phosphorus efficiency through leaf acid phosphatase activity

2018 ◽  
Author(s):  
K.V. Naga Madhuri ◽  
P. Latha ◽  
R. P. Vasanthi ◽  
K. John ◽  
P.V.R.M. Reddy ◽  
...  
Keyword(s):  
Acid Phosphatase ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Andhra Pradesh ◽  
Agricultural Research ◽  
Phosphorus Efficiency ◽  
Research Station ◽  
Soil P ◽  
P Content ◽  
Leaf P

Phosphorus (P) sources are limited around the globe making it unsustainable with present farming practices. This necessitates the development of more phosphorus efficient crops while monitoring P status. Groundnut (Arachis hypogaea L.) is a major crop in Southern Andhra Pradesh, India where soils are light textured and less fertile. Twenty groundnut genotypes were evaluated under a pot culture experiment conducted at Regional Agricultural Research Station, Tirupati, Andhra Pradesh, India during kharif, 2016 grown using standard crop recommended practices in P-sufficient (control) and in P-deficient conditions. Leaf Acid phosphatase activity and leaf P content were monitored after 60 days of sowing while kernel P and pod yields were recorded at harvest and estimated using standard protocols. Results showed that under P deficient conditions, genotypes TCGS 1616, TCGS 1622, TCGS 1624, TCGS 1517 and Greeshma had higher leaf P accumulation (between 0.20 % to 0.24 %) in comparison to others. Genotypes TCGS 1616, TCGS 1624, and TCGS 1517 reported high kernel P when compared to others under P starved conditions. Likewise under deficient soil P conditions, TCGS 1528, TCGS 1624, TCGS 1517 and Greeshma (range 2.71-4.45 µmoles hr-1g-1) demonstrated having lower leaf acid phosphatase content in leaves when compared to other genotypes. Only TCGS 1624, TCGS 1616 and Greeshma had lower leaf acid phosphatase while at the same time having higher accumulation of leaf P and highest pod yield followed by TCGS 1517 suggesting that P starvation was better coped by these genotypes and hence can be recommended in soils deficient in P. Leaf acid phosphatase activity correlated negatively with P content in leaves (r = -0.73) similar to those reported for soybean cultivars in Brazil. There is potential for breeders in accelerating identification of markers to specific traits that would be suitable for monitoring P status and manage nutrient application.

scholarly journals Glycemic index studies in rice (Oryza sativa L.) varieties developed by ANGRAU

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 133-137
Author(s):  
S. Divya Prasanna Kumari ◽  
G. Nirmala Devi ◽  
N. Chamundeswari
Keyword(s):  
Glycemic Index ◽  
Significant Variation ◽  
Agricultural Research ◽  
Amylose Content ◽  
Oryza Sativa L ◽  
Research Station ◽  
Rice Varieties ◽  
Gel Consistency ◽  
The Mean ◽  
Chemical Traits

Twenty popular rice varieties developed by ANGRAU obtained from Regional Agricultural Research Station (RARS), Maruteru during Kharif – 2019, were screened for chemical quality traits viz., gel consistency, gelatinization temperature, amylose along with glycemic index.In our study, significant variation was observed among all the varieties for chemical traits but no significant variation was observed in case of glycemic index.The amylose content observed over the varieties ranged from 21.7 per cent to 24.73 per cent. All the varieties have intermediate amylose content. Gel consistency ranged from 37.67 (hard gel) to 75 (soft gel) with the mean of 52.57. The alkali spreading value was noticed to be low, intermediate and high among all rice varieties.Glycemic index rangedfrom 56.72 -66.43 with a general mean of 60.67. Furthermore, all the varieties were categorized as medium GI varieties (56-69). Among all the varieties, Pushyami has shown the least value (56.72) for glycemic index.From the present investigation, it is concluded that, Rice varieties such as Chandra, Indra, Sri Dhruthi, Swarna, Samba Mahsuri, Sujatha, Maruteru Samba, MaruteruMahsuri recorded intermediate amylose, alkali spreading value and medium GI, which are desirable for rice consumers while counting for better rice with the best quality and glycemic index.

scholarly journals Occurrence of a Subpopulation of Xanthomonas oryzae pv. oryzae with Virulence to Rice Cv. IRBB21 (Xa21) in Southern India

Plant Disease ◽  
1999 ◽  
Vol 83 (8) ◽  
pp. 781-781 ◽  
Author(s):  
V. Brindha Priyadarisini ◽  
S. S. Gnanamanickam
Keyword(s):  
Bacterial Blight ◽  
Agricultural Research ◽  
Oryza Sativa L ◽  
Xanthomonas Oryzae ◽  
Southern India ◽  
Lesion Length ◽  
Research Station ◽  
Cornell University ◽  
Bacterial Blight Pathogen ◽  
Kerala State

About 200 isolates of the bacterial blight pathogen Xanthomonas oryzae pv. oryzae were obtained from infected rice (Oryza sativa L.) leaf samples from the Palghat District of Kerala State in southern India during January and February, 1998, when there was a severe epidemic of bacterial blight in the farmers' fields. One hundred and forty of these isolates were assayed for pathogenicity on rice cv. IR24 (no R gene), IRBB21 (Xa21), and NH56 (Xa4+xa5+xa13+Xa21) at their maximum tillering stage by the standard clip-inoculation technique (1) at the Regional Agricultural Research Station (Kerala Agricultural University), Pattambi. In two separate experiments, all the isolates were found to be pathogenic to IR24, producing lesions greater than 10 cm in length. None of the isolates induced susceptible symptoms on cv. NH56 and the average lesion length was less than 2 cm. Twenty of the 140 isolates, however, showed virulence to IRBB21 (seeds supplied by S. R. McCouch, Cornell University, and by P. Ronald, University of California-Davis) and induced lesions of 10.0 to 18.0 cm. We report here the presence of Indian races of X. oryzae pv. oryzae that are virulent to IRBB21 (Xa21), contradicting an earlier report of avirulence (2). These results suggest that the deployment of Xa21 alone will not be a sound strategy for the management of bacterial blight in southern India. References: (1) S. S. Gnanamanickam et al. Plant Dis. 78:173, 1994. (2) G.-L.Wang et al. Mol. Plant-Microbe Interact. 9:850, 1996.

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