MORPHO-PHYSIOLOGICAL CHARACTERIZATION OF INBRED LINES IN MAIZE.
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Date
2021-09-10
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Abstract
The present investigation entitled “Morpho-physiological characterization of inbred lines in maize” was carried out during rabi 2019-20, at research field of Agriculture Research Station, Buldana. Experiment was laid out in RBD design with three replications and eleven inbred lines. viz., BMI-6-2-2, BMI-28-1, BMI-34-3, BMI-23-1, BVM-21-1, MGT-53-2-1, MGT-53-36, MGT-53-23, MGT-53-24-4, V1543-6-12, V1551-15. Sowing was done by dibbling method on 21st December 2019 with the spacing of 60 x 20 cm. After there all the intercultural operations were performed as and when required. The recommended dose of 120:60:40 NPK kg/ha was applied.
Morpho-physiological parameters were recorded at 30,60 DAS and at harvest, days to 50% tasseling and silking was recorded at the proper stage. Growth parameters were recorded at 30-60 and 60-harvest. biochemical parameter was recorded at 30 and 60 DAS. Yield and yield attributes were recorded at harvest.
Result revealed that, Significantly maximum values of morphological parameters like plant height (267.37cm at Harvest), leaf area (4052.67cm2 at 60 DAS), leaf area index(3.38) were recorded in Inbred line V1551-15; For Physiological parameters like dry matter production (321.10 g at Harvest), relative water content (72.01% 60DAS) and growth parameters like crop growth rate (3.90 g/day at 30-60), relative growth rate (0.09123 g/g/day at 30-60 DAS), net assimilation rate (0.03043 g/dm2/day at 30-60 DAS); biochemical parameter like chlorophyll content index (53.03 at 60 DAS SPAD values); yield and yield attributing parameters like grain yield (102.46 g/plant) and harvest index (42.99%) were recorded in inbred line MGT-53-2-1.
Form the above gained results it can be concluded that the Inbred line V1551-15 was found statistically superior for morphological parameters, Whereas Inbred line MGT-53-2-1 and MGT-53-24-4 was found superior for physiological, biochemical parameters, yield and yield attributes in maize respectively. Hence, they can be further utilized for improving morphological, physiological, growth parameters, yield and yield attributes for further breeding programme in zea mays L.
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DHONGADE, PRATIKSHA PANDURANG. (2021). Morpho-physiological characterization of inbred lines in maize. Department of Agricultural Botany (Plant Physiology), Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2021. Print Xii, 63 p. (unpublished).