Not Available

Not AvailableBalanced treatment incomplete block (BTIB) designs are quite popular for comparing test versus a single control treatment. In this article, we extend the class of BTIB designs by introducing nearly BTIB designs. Nearly BTIB designs can act as a useful alternative to BTIB designs when the latter is not available for a given parametric combination. An algorithm is proposed to construct nearly BTIB designs and a list of such designs is also provided in a practically useful parametric range.Not Availabl

Effect of planting time and density on plant growth, seed yield and quality attributes in onion (Allium cepa) cv. Pusa Riddhi

The present experiment was conducted to investigate the effect of planting time and density on plant growth, seed yield and quality attributes in onion (Allium cepa L.) cv. Pusa Riddhi at SPU, IARI, New Delhi during rabi 2013-14 and 2014-15. The experiment consists of three different planting dates, i.e. 15 October (T1), 25 October (T2) and 5 November (T3) with three spacings, viz. 60×10 cm (S1) 60×20 cm (S2) 60×30 cm (S3). The experimental results revealed that the date of planting and plant spacing had significant influence on growth attributes, flowering, yield and quality characters. The planting on 15 October (T1) showed significant higher, seed scape height (101.4 cm), umbel diameter (6.54 cm), productive umbellates/umbel (414.73), seed setting (83.69%), seed yield/plant (8.71 g) and yield/ ha (6.86 q), germination (%) (88.43), seedling length (9.48 cm), seedling dry weight (1.9 mg) and vigour index-I and II (8.33.32 and 167.08) than 25 October and 5 November planting. The plant spacing 60×30cm (S3) showed higher number of leaves/plant (40.89) seed scape height (102.26 cm), scape diameter (1.88 cm), total scapes/plant (11.72), umbel diameter (6.58 cm), productive scapes/plant (8.35), umbellates/umbel (503.52), productive umbellates/umbel (419.4), yield/umbel (3.48 g), seed yield/plant (12.43 g), seed yield/ha (6.22 q), 1000 seed weight (3.01 g), germination (%) (89.76) and seed vigour-I and II (918.56 and 172.96) than closer spacing. The incidence of disease, disease severity index and scape lodging (%) were significantly lower in 15 October (T1) and 60×30 (S3)

Phenotyping for Nitrogen Use Efficiency: Rice Genotypes Differ in N-Responsive Germination, Oxygen Consumption, Seed Urease Activities, Root Growth, Crop Duration, and Yield at Low N

The biological improvement of fertilizer nitrogen use efficiency (NUE) is hampered by the poor characterization of the phenotype and genotype for crop N response and NUE. In an attempt to identify phenotypic traits for N-response and NUE in the earliest stages of plant growth, we analyzed the N-responsive germination, respiration, urease activities, and root/shoot growth of 21 Indica genotypes of rice (Oryza sativa var. indica). We found that N delays germination from 0 to 12 h in a genotype-dependent and source-dependent manner, especially with urea and nitrate. We identified contrasting groups of fast germinating genotypes such as Aditya, Nidhi, and Swarnadhan, which were also least delayed by N and slow germinating genotypes such as Panvel 1, Triguna, and Vikramarya, which were also most delayed by N. Oxygen uptake measurements in the seeds of contrasting genotypes revealed that they were affected by N source in accordance with germination rates, especially with urea. Germinating seeds were found to have endogenous urease activity, indicating the need to explore genotypic differences in the effective urea uptake and metabolism, which remain unexplored so far. Urea was found to significantly inhibit early root growth in all genotypes but not shoot growth. Field evaluation of 15 of the above genotypes clearly showed that germination rates, crop duration, and yield are linked to NUE. Slow germinating genotypes had longer crop duration and higher yield even at lower N, indicating their higher NUE, relative to fast germinating or short duration genotypes. Moreover, longer duration genotypes suffered lesser yield losses at reduced N levels as compared to short duration genotypes, which is also a measure of their NUE. Together, these results indicate the potential of germination rates, crop duration, urea utilization and its effect on root growth in the development of novel phenotypic traits for screening genotypes and crop improvement for NUE, at least in rice

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: April 26, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: April 12, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: May 04, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: April 11, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: May 02, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: April 29, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl

Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022

Not AvailableThis bulletin provides information on real-time Monitoring Wheat Residue Burning in India using Satellite Remote Sensing during 2022: May 09, 2022. Tables and maps are included to show precise location of each residue burning event detected. The maps of residue burning are also uploaded on ICAR KRISHI Geoportal website. The monitoring has been undertaken as per the "Standard Protocol for Estimation of Crop Residue Burning Fire Events using Satellite Data" developed on the directions of "Commission for Air Quality Management in National Capital Region and Adjoining Areas'' (http://geoportal.icar.gov.in:8080/geoexplorer/composer/, a part of KRISHI Portal: https://krishi.icar.gov.in initiative).Not Availabl