41. Effects of plant height on population dynamics of Wheat crop (Triticum aestivum L.)

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Abdul Hameed Baloch, Muslim Qadir, Haneef-Ur-Rehman, Noor Muhammad and Shaik Abdullah

Abstract

The wheat (Triticum aestivum L.) is an important staples crop of Pakistan and the Central Asia. The present research is an effort to clarify the super wheat genotypes, which were carried out at the experimental field area of Lasbela University of Agriculture, Water and Marine Sciences (LUAWMS), Pakistan, in order to study the effect of intra-specific competition on individual plants of Wheat (variety Sahar 2006) during the 2013-2014 wheat growing season. The experiment was carried out in a randomized complete block design comprising of two rows spacing (15 and 30 cm) and broadcasting method of seeding with four replicates at a 30 days’ interval by destruction method. Final harvest was carried out at the end of growing season (150 days after seeding). The agronomic characteristics of wheat have shown non-significant response for effect of row spacing at final harvest. However, application of Gini Coefficient and Lorenz Curve clearly indicated the inequalities in plant height, number and length of spike and spikelet among the individual plants. The Gini values are more pronounced at mid-season harvest compared with final harvest. The results of present study explained the reasons of inequality in plant height and growth within the pure-line of wheat crop.


Keywords: Gini Coefficient; Lorenz Curve; Physiological traits; Row spacing; Wheat


http://dx.doi.org/10.19045/bspab.2020.90279


 

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