Retranslocation of Zn from leaves as important factor for zinc efficiency of rice genotypes

2001 ◽  
pp. 226-227 ◽  
Author(s):  
R. Hajiboland ◽  
B. Singh ◽  
V. Römheld
Keyword(s):  
Zinc Efficiency ◽  
Rice Genotypes

Response of rice genotypes under different zinc fertilization strategy

2019 ◽  
Vol 56 (3) ◽  
pp. 318-324
Author(s):  
VP Ramani ◽  
Dileep Kumar ◽  
AK Shukla ◽  
RA Patel
Keyword(s):  
Crop Production ◽  
Efficiency Index ◽  
Mean Value ◽  
Growth And Yield ◽  
Zn Deficiency ◽  
Zinc Efficiency ◽  
External Application ◽  
Zn Efficiency ◽  
Zinc Fertilization ◽  
Rice Genotypes

Soil zinc (Zn) deficiency limits crop growth and yield besides its low concentration in grain and straw. Growing of Zn efficient cultivars with high crop yield at low Zn supply would represent a sustainable approach to crop production. Therefore, to evaluate Zn efficiency of rice genotypes, twenty eight different rice genotypes were evaluated under various treatments like three levels of Zn viz. low (without Zn), medium (10 kg Zn ha-1 soil) and high (20 kg Zn ha-1 soil + three foliar sprays of 0.5% Zn). Zinc efficiency index of all genotypes ranged from 65.5 to 102.6 % and Zn uptake efficiency ranged from 53.8 to 107 % with a mean value of 87.1 and 76.5 %. Cultivar GR-101 was having the highest Zn efficiency index as well as Zn efficiency compared to other genotype. Based on grain yield and Zn efficiency, the genotypes Ashoka-20, Narmad, GR-12, GR-3, GR-1 and GR-2 were classified as efficient and responsive, genotypes GR- 11, SLR -51214. GAUR-10 and GR-13 as efficient and non responsive, whereas, genotypes GR-101, GR-104, GR-102 and Lalkad as inefficient and responsive. The Gurjari, AAUDR-1, K-Kamod, GR-9, GR-5, P-2003 SK-20 and GR-7 genotype were classified as inefficient and non responsive. The efficient and responsive genotypes are most desirable as they would produce higher yield under low Zn concentration in soil and responded well under external application of Zn sources.

scholarly journals SCREENING OF SHORT DURATION RICE GENOTYPES FOR ZINC EFFICIENCY

2019 ◽  
Vol 7 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Jegadeeswari D ◽  
◽  
Chitdeshwari T ◽  
Boominathan P ◽  
◽  
...  
Keyword(s):  
Short Duration ◽  
Zinc Efficiency ◽  
Rice Genotypes

Ascorbate metabolism in rice genotypes differing in zinc efficiency

Planta ◽  
2013 ◽  
Vol 239 (2) ◽  
pp. 367-379 ◽  
Author(s):  
Stefanie Höller ◽  
Mohammad-Reza Hajirezaei ◽  
Nicolaus von Wirén ◽  
Michael Frei
Keyword(s):  
Zinc Efficiency ◽  
Rice Genotypes ◽  
Ascorbate Metabolism

Phosphorus fertilization in inbred and hybrid rice

1970 ◽  
Vol 19 (2) ◽  
pp. 181-187
Author(s):  
MR Islam ◽  
PK Saha ◽  
SK Zaman ◽  
MJ Uddin
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Hybrid Rice ◽  
Phosphorus Fertilization ◽  
Phosphorus Fertilizer ◽  
Yield Difference ◽  
P Balance ◽  
Rice Genotypes ◽  
Boro Rice

Five phosphorus rates (0, 5, 10, 20 and 30 kg P/ha) were tested with four rice genotypes in Boro (BRRI dhan36, BRRI dhan45, EH1 and EH2) and T. Aman (BRRI dhan30, BRRI dhan49, EH1 and EH2) season. Phosphorus rates did not influence grain yield irrespective of varieties in T. Aman season while in Boro season P response was observed among the P rates. Application of P @ 10 kg/ha significantly increased the grain yield. But when P was applied @ 20 and 30 kg P/ha, the grain yield difference was not significant. The optimum and economic rate of P for T. Aman was 20 kg P/ha but in Boro rice the optimum and economic doses of P were 22 and 30 kg/ha, respectively. Hybrid entries (EH1 and EH2) used P more efficiently than inbred varieties. A negative P balance was observed up to 10 kg P/ha. Key words: Response; Phosphorus fertilizer; Inbred; Hybrid rice DOI: http://dx.doi.org/10.3329/dujbs.v19i2.8962 DUJBS 2010; 19(2): 181-187

Molecular Characterization and Genetic Diversity Study in F3 Population of Rice

2013 ◽  
Vol 20 (1-2) ◽  
pp. 1-8
Author(s):  
MM Rahman ◽  
L Rahman ◽  
SN Begum ◽  
F Nur
Keyword(s):  
Genetic Distance ◽  
Gene Diversity ◽  
Random Amplified Polymorphic Dna ◽  
Molecular Genetic ◽  
Molecular Genetic Analysis ◽  
Polymorphic Loci ◽  
Rice Genotypes ◽  
High Level ◽  
Genetic Diversity Study ◽  
Diversity Study

Random Amplified Polymorphic DNA (RAPD) assay was initiated for molecular genetic analysis among 13 F3 rice lines and their parents. Four out of 15 decamer random primers were used to amplify genomic DNA and the primers yielded a total of 41 RAPD markers of which 37 were considered as polymorphic with a mean of 9.25 bands per primer. The percentage of polymorphic loci was 90.24. The highest percentage of polymorphic loci (14.63) and gene diversity (0.0714) was observed in 05-6 F3 line and the lowest polymorphic loci (0.00) and gene diversity (0.00) was found in 05-12 and 05-15 F3 lines. So, relatively high level of genetic variation was found in 05-6 F3 line and it was genetically more diverse compared to others. The average co-efficient of gene differentiation (GST) and gene flow (Nm) values across all the loci were 0.8689 and 0.0755, respectively. The UPGMA dendrogram based on the Nei’s genetic distance differentiated the rice genotypes into two main clusters: PNR-519, 05-19, 05-14, 05-12 and 05-17 grouped in cluster 1. On the other hand, Baradhan, 05-9, 05-13, 05-11, 05-5, 05-6, 05-1, 05-4, 05-15 and 05-25 were grouped in cluster 2. The highest genetic distance (0.586) was found between 05-4 and 05-17 F3 lines and they remain in different cluster.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16839 Progress. Agric. 20(1 & 2): 1 – 8, 2009

Screening of rice genotypes for resistance to the brown planthopper, Nilaparvata lugens Stål

2012 ◽  
Vol 40 (4) ◽  
pp. 502-508 ◽  
Author(s):  
M. P. Ali ◽  
Salem S. Alghamdi ◽  
M. A. Begum ◽  
A. B. M. Anwar Uddin ◽  
M. Z. Alam ◽  
...  
Keyword(s):  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Rice Genotypes

Effects of PEG induced water stress on growth and physiological responses of rice genotypes at seedling stage

2019 ◽  
Vol 51 (6) ◽  
Author(s):  
A. Shereen ◽  
M.A. Khanzada ◽  
M.A. Wahid Baloch ◽  
Asma Asma ◽  
M.U. Shirazi ◽  
...  
Keyword(s):  
Water Stress ◽  
Physiological Responses ◽  
Seedling Stage ◽  
Rice Genotypes

Physiological Response to 1,2,4-Trichlorobenzene Stress of Different Rice Genotypes in Seedlings

2009 ◽  
Vol 35 (4) ◽  
pp. 733-740 ◽  
Author(s):  
Guo-Liang ZHANG ◽  
Wen-Jun CHEN ◽  
Li-Min QIU ◽  
Guo-Rong SUN ◽  
Qi-Gen DAI ◽  
...  
Keyword(s):  
Physiological Response ◽  
Rice Genotypes

Effects of Growth-period Type and Nitrogen Application Level on the RVA Profile Characteristics for Japonica Rice Genotypes

2013 ◽  
Vol 38 (2) ◽  
pp. 293-300 ◽  
Author(s):  
Min LI ◽  
Hong-Cheng ZHANG ◽  
Guo-Ye LI ◽  
Qun MA ◽  
Xiong YANG ◽  
...  
Keyword(s):  
Growth Period ◽  
Nitrogen Application ◽  
Rice Genotypes ◽  
Profile Characteristics

EVALUATION OF SOME DEVELOPED HIGH YIELDING RICE GENOTYPES RESISTANT TO BLAST, BAKANAE AND WHITE TIP NEMATODE

2016 ◽  
Vol 7 (3) ◽  
pp. 317-329 ◽  
Author(s):  
R. EL-Shafey ◽  
G. Anis ◽  
A. Elmoghazy
Keyword(s):  
Rice Genotypes
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