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Research Article Open access CC BY 4.0

Genetic Variability Studies Involving Drought Tolerance Related Traits in Maize Genotypes

I. A. Dar, Z. A. Dar, Kamaluddin ., A Lone, P. A. Sofi, S. Hussan, M. S. Dar, W. Alie

Journal of Agriculture and Ecology Research International · pp. 1–13 · Published 3 Apr 2018

10.9734/JAERI/2018/40241

Abstract

The field experiment was carried out at Dryland Agriculture Research Station (DARS) Budgam, under natural rainfed conditions during Kharif 2017 season. Thirteen varieties of maize were evaluated and the experiment was laid out in a randomized block design with three replications. Highest genotypic and phenotypic coefficient of variation was found in anthesis, silking interval and lowest in no of cobs/plant. High heritability coupled with a high genetic advance was observed for shoot weight, grains/cob and plant height. The genotypes KG-1 (122.00 days), KG-2 (124.00 days) and GM-6 (130.00 days) mature earlier indicating some escape mechanism in these genotypes under water stress. The ASI was lowest in KDM-72 (2.00 days) and KG-2 (2.00 days) and was highest in C-8 (5.00 days). Among the yield parameters plant height was significantly higher in C-15 (269.00) similarly, shoot weight was significantly higher in C-15 (917.50), cob height was significantly higher in C-8 (141.60), cob length was significantly higher in C-15 (22.33), no of cobs plant-1 was significantly higher in PM-5 (1.94), kernel rows cob-1 was significantly higher in C-4 (16.00), kernel rows-1 was significantly higher in C-6 (40.66), grains cob-1 was significantly higher in C-6 (596.46), 100-seed weight was significantly higher in C-15 (34.40) and grain yield plant-1 was significantly higher in C-6 (116.75). Among resource remobilization traits that are indicative of source sink efficiency cob partitioning index was significantly higher in PM-3 (87.70), cob harvesting index was significantly higher in PM-4 (62.64) and harvest index was significantly higher in PM-3 (33.57).

Rainfed; Kharif variability anthesis silking interval resource remobilisation

References (27)

  1. 1 THE INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE [DOI]
  2. 2 Estimates of Genetic and Environmental Variability in Soybeans 1 [DOI]
  3. 3 Historical Warnings of Future Food Insecurity with Unprecedented Seasonal Heat [DOI]
  4. 4 Crops that feed the world 6. Past successes and future challenges to the role played by maize in global food security [DOI]
  5. 5 Global Synthesis of Drought Effects on Maize and Wheat Production [DOI]
  6. 6 Can Changes in Canopy and/or Root System Architecture Explain Historical Maize Yield Trends in the U.S. Corn Belt? [DOI]
  7. 7 Molecular and biochemical impacts of environmental factors on wheat grain development and protein synthesis [DOI]
  8. 8 Deficit Irrigation. I: Analytical Framework [DOI]
  9. 9 Transport of dry matter into developing wheat kernels and its contribution to grain yield under post-anthesis water deficit and elevated temperature [DOI]
  10. 10 Root cortical aerenchyma improves the drought tolerance of maize ( Zea mays L.) [DOI]
  11. 11 Improving wheat grain filling under stress by stem reserve mobilisation [DOI]
  12. 12 Effect of irrigation amounts applied with subsurface drip irrigation on corn evapotranspiration, yield, water use efficiency, and dry matter production in a semiarid climate [DOI]
  13. 13 Temperature, Water and Fertilizer Influence the Timing of Key Events During Grain Development in a US Spring Wheat [DOI]
  14. 14 Evaluation of crop water stress index for LEPA irrigated corn [DOI]
  15. 15 Pre-Anthesis Reserve Utilization for Protein and Carbohydrate Synthesis in Grains of Wheat [DOI]
  16. 16 A comparison of furrow, surface drip, and subsurface drip irrigation on lettuce yield and applied water [DOI]
  17. 17 Genetic variances, heritability, correlation and path coefficient analysis in yellow maize crosses (Zea mays L.).
  18. 18 Genetic Parameters and Path Analysis of Yield and its Components in Corn Inbred Lines (Zea mays L.) at Different Sowing Dates [DOI]
  19. 19 Evaluation of maize 3-way crosses through genetic variability, broad sense heritability, characters association and path analysis
  20. 20 Genetic Studies on Agro-Morphological Traits in Rice (Oryza sativa L.) under Water Stress Conditions
  21. 21 Assessment Of Drought Tolerance Maize Hybrids At Grain Growth Stage In Mediterranean Area [DOI]
  22. 22 Yield and Quality Traits of Some Flax Cultivars as Influenced by Different Irrigation Intervals [DOI]
  23. 23 Combining ability in rice.
  24. 24 Improving yield and water productivity of maize grown under deficit-irrigated in dry area conditions
  25. 25 Morphological traits determining drought tolerance in maize (Zea mays L.)
  26. 26 Physio-biochemical and molecular characterization for drought tolerance in rice genotypes at early seedling stage [DOI]
  27. 27 Variability studies in some exotic maize genotypes.

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