Identification of drought tolerant wheat genotypes based on seedling traits.
作者： Mushtaq Ahmad , N. M. Minhas , Ghulam Shabbir , M. K. N. Shah
DOI:
关键词:
摘要: Drought significantly reduces yield of many crop plants including wheat in the world. Identification genotypes that can thrive on limited water is vital to boost production rainfed areas. Forty were screened for drought tolerance using 0, 7.5, 15 and 22.5% Polyethylene Ethylene Glycol 6000 solutions at PMAS Arid Agriculture University, Rawalpindi, Pakistan during 2009-10. Data recorded various seedling parameters like germination percentage, rate index, root length, shoot coleoptile length vigor. The traits showed a decreasing trend response increased concentrations PEG 6000. Wheat genotype Lyalpur-73 was found best percentage (87.5). C-591 had maximum index (2.4). Pasban 90 WC-18 possessed (9.9) vigor (7.4) respectively. Auqab-2000 (8.3). Pak-81 along with CB 335 (1.9). Germination positive correlation all other traits. Root association length. While vigour.
cabdirect.org
aup.edu.pk 参考文章(17)
G. P. Singh, H. B. Chaudhary, Rajbir Yadav, S. Tripathi, Genetic analysis of moisture-stress tolerance in segregating populations of bread wheat (Triticum aestivum) Indian Journal of Agricultural Sciences. ,vol. 78, pp. 848- 852 ,(2008)
Ijaz Rasool Noorka, Ihsan Khaliq, AN EFFICIENT TECHNIQUE FOR SCREENING WHEAT (TRITICUM AESTIVUM L.) GERMPLASM FOR DROUGHT TOLERANCE ,(2007)
M.M. Ludlow, R.C. Muchow, A critical evaluation of traits for improving crop yields in water-limited environments. Advances in Agronomy. ,vol. 43, pp. 107- 153 ,(1990) , 10.1016/S0065-2113(08)60477-0
KHM Siddique, D Tennant, MW Perry, RK Belford, Water Use and Water Use Efficiency of Old and Modern Wheat Cultivars in a Mediterranean-type Environment Crop & Pasture Science. ,vol. 41, pp. 431- 447 ,(1990) , 10.1071/AR9900431
N. CARPITA, D. SABULARSE, D. MONTEZINOS, D. P. DELMER, Determination of the pore size of cell walls of living plant cells Science. ,vol. 205, pp. 1144- 1147 ,(1979) , 10.1126/SCIENCE.205.4411.1144
T. M. Crosbie, J. J. Mock, O. S. Smith, Comparison of Gains Predicted by Several Selection Methods for Cold Tolerance Traits of Two Maize Populations 1 Crop Science. ,vol. 20, pp. 649- 655 ,(1980) , 10.2135/CROPSCI1980.0011183X002000050027X
T. L. Botwright, A. G. Condon, G. J. Rebetzke, R. A. Richards, Field evaluation of early vigour for genetic improvement of grain yield in wheat Crop & Pasture Science. ,vol. 53, pp. 1137- 1145 ,(2002) , 10.1071/AR02007
J. V. Lagerwerff, G. Ogata, H. E. Eagle, Control of Osmotic Pressure of Culture Solutions with Polyethylene Glycol Science. ,vol. 133, pp. 1486- 1487 ,(1961) , 10.1126/SCIENCE.133.3463.1486
Sophie de Dorlodot, Brian Forster, Loïc Pagès, Adam Price, Roberto Tuberosa, Xavier Draye, Root system architecture: opportunities and constraints for genetic improvement of crops. Trends in Plant Science. ,vol. 12, pp. 474- 481 ,(2007) , 10.1016/J.TPLANTS.2007.08.012
R. A. Richards, G. J. Rebetzke, A. G. Condon, A. F. Herwaarden, Breeding Opportunities for Increasing the Efficiency of Water Use and Crop Yield in Temperate Cereals. Crop Science. ,vol. 42, pp. 111- 121 ,(2002) , 10.2135/CROPSCI2002.1110