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- Title
In - vitro Screening Method for Iron Use Efficient Groundnut (Arachis hypogaea L.) Genotypes for Calcareous Soils Based on Morpho- Physiological Responses.
- Authors
V. S., Reddy Kiran Kalyan; S., Meena; D., Jawahar
- Abstract
The most promising remedy for iron chlorosis in calcareous soils is genetic variability in the crop for iron absorption efficiency. A screening technique capable of simulating the realistic situation and promoting year-round screening for the selection of iron-efficient genotypes is strongly warranted from the point of time and manpower. The present work was aimed to screen groundnut genotypes for calcareous tolerance, based on morphophysiological parameters with 40 groundnut genotypes in solution culture. The genotypes were grown for 21 days in full strength nutrient solution with and without iron (Fe) and 15 mM KHCO3. Chlorophyll content, catalase, peroxidase, NRase activity, active and total Fe concentrations, shoot weight, root weight and root volume per plant were recorded for each genotype on 21st day. Cluster analysis of the collected data showed that TAG 24, CO 7, VRI 13113, VRI 16086, VRI 13149, JL 24 and TMV 1 were among the Fe efficient genotypes with Fe tolerance index value of 94.6, 94.0, 93.6, 93.0, 91.8, 91.4 and 90.5 respectively while TMV 13, AMABC 2017-8, VRI 16075 and VRI 16154 (81.3, 80.8, 80.7 and 79.3 respectively) were among the most Fe inefficient genotypes for calcareous soils.
- Publication
Madras Agricultural Journal, 2020, Vol 107, Issue 7-9, p276
- ISSN
0024-9602
- Publication type
Academic Journal
- DOI
10.29321/MAJ.2020.000385