Zinc Uptake and Accumulation in Recombinant Inbreed Lines of Rice (Oryza Sativa L.) under Varied Zinc Levels
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 3
Abstract
In the present study, the effect of different levels of zinc on growth and zinc uptake was analysed in contrasting zinc accumulating recombinant inbreed lines (RILs) developed in our laboratory and other genotypes. Plants were grown in zinc deficient soil (<0.65 ppm zinc) and the soil was supplemented with zinc fertilizer @ 10 kg/ha, 20 kg/ha and 40kg/ha. Phenotypic pattern and micronutrient accumulation such as zinc in different RILs and genotypes were analyzed, which grew under zinc deficient and supplemented conditions. The results revealed that the RILs performed well compared to genotypes under zinc deficient condition. The characteristic symptom of the genotypes under Zn-deficient conditions was found to be severe yellowing/bronzing of leaves. Further, scoring of panicle emergence index showed well exerted panicle in high zinc RILs, and delayed panicle emergence was observed in zinc deficiency susceptible genotype under both Zn deficient and supplemented conditions. No significant reduction in plant height was observed among RILs and genotypes. Increased grain yield and grain Zn accumulation was observed in RILs under zinc supplementation at 20 kg/h. These results indicate that RILs developed for high zinc accumulation were able to efficiently accumulate Zn, which was also correlated with high grain yield under Zn supplemented conditions as compared to other genotypes.
Authors and Affiliations
Hemavathi . . , Brijesh A. S, Shashidhar H. E, Vijayakumar Swamy H. V
Keywords
Related Articles
- EP ID EP252020
- DOI -
- Views 115
- Downloads 0
Socio-Cultural Environment of Changpa Nomads of Changthang Region (Ladakh)
The present study was aimed at people of Changthang, known as Changpa or Drukpa, who are nomadic shepherds. Majority of the Changpa nomads lived in rebo (tents) made from yak wool and their lives were centered around the...
Farmers' Adoption of High Yielding Aromatic Rice Varieties Developed at RARS, Titabar and their Associated Practices by the Farmers in Jorhat District of Assam
The present investigation was carried out in Jorhat district of Assam, following Ex-Post-Facto research design with a view to examining the extent of adoption of high yielding aromatic rice varieties and their associated...
Performance Evaluation of Power Weeder in Sandy Soils and Development of Weed Rake
Weeding consists of uprooting and removal of unwanted plants which grow in a field with a cultivated crop competing with the crops for moisture and plant nutrients. Weeding is essential to improve productivity of field c...
EFFECT OF SUBSTRATE AND MOISTURE CONTENT ON MYCELIAL GROWTH OF GANODERMA LUCIDUM (LEYSS. EX. FR.) KARST
Different substrates and moisture regimes were evaluated for mycelial growth optimization of Ganoderma lucidum. The fungal mycelium was grown on three substrates, viz. wheat straw, saw dust and wheat straw + saw dust (1:...
Soil Mapping of Patiala-Ki-Rao Watershed in Shivalik Foot-Hills Using GIS
Soil is the upper layer of earth and shows adaptable physical, chemical and hydrological properties. The particle size of any soil is an important part of soil and sediment characterization of the waters...