I= GENETIC DIVERSITY FOR MORPHO-GENETIC TRAITS AND HORDEIN SEED PROTEIN IN BARLEY GERMPLASM
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Title of Thesis
GENETIC DIVERSITY FOR MORPHO-GENETIC TRAITS AND HORDEIN SEED PROTEIN IN BARLEY GERMPLASM

Author(s)
Zaheer Ahmad.
Institute/University/Department Details
University Of Arid Agriculture / Department Of Plant Breeding And Genetics Faculty Of Crop And Food Sciences.
Session
2005
Subject
Morpho-Genetic.
Number of Pages
160
Keywords (Extracted from title, table of contents and abstract of thesis)
barley (hordum vulgare l.) germplasm, days to heading, days to maturity, grain filling period, number of productive tillers per plant, peduncle length, flag leaf area, plant height, spike length, number of spikelets per spike, number of grains per spike, biomass per plant, grain yield per plant, 1000 grain weight, harvest index (%) protein (%), hordein seed

Abstract
Barley (Hordum vulgare L.) germplasm comprising of 133 accessions collected from Pakistan was evaluated in field and Laboratory for two years. Fifteen quantitative traits viz, days to heading, days to maturity, grain filling period, number of productive tillers per plant, peduncle length, flag leaf area, plant height, spike length, number of spikelets per spike, number of grains per spike, biomass per plant, grain yield per plant, 1000 grain weight, harvest index (%) protein (%) and two qualitative traits viz growth habit and awn color were recorded. Significant amount of genetic variation was observed in most of the plant traits whereas spike length showed less variation. The magnitude of genetic variation for qualitative traits like growth habit, awn color was reasonable.

The analysis of correlation coefficient among the quantitative traits revealed that yield per plant showed significant and positive correlation with 1000 grain weight and harvest index Biomass per plant showed significant positive association with grain yield per plant 1000 grain weight. Number of spikelets per spike had positive relationship with number of grains per spike while it had significant negative correlation with 1000 grain weight. High magnitude of the quantitative traits revealed that there were less environmental effects on the traits over the years suggesting a need to evaluate the barley accessions in different agro-ecological regions rather than over the years.

The evaluation on the basis of regions showed that accessions from Northern Areas performed better for early heading days, more grain filling period, broader leaf area, short plant height, more number of grains per spike and high protein whereas long peduncle length was found in accessions from Baluchistan. NWFP material was good for harvest index, 1000 grain weight and tall stature.

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S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
124.96 KB
2 1 Introduction 1
56.64 KB
3 2 Review Of Literature 4
230.22 KB
  2.1 Plant Spacing 4
  2.2 Weed Densities In Relation To Plant Spacing 6
  2.3 Nitrogen Application 8
  2.4 Weed Control Methods 10
4 3 Materials And Methods 16
114.38 KB
  3.1 General 16
  3.2 Experiment I: Agro-Physioligical Respons Of Cotton To Plant Spacing And Trianthema Portulacastrum L. DENSITY 20
  3.3 Experiment II: Nitrogen USE Efficinecy Through Integrated Weed Management In Cotton Dry Weight Of Weed (S) At Harvest (G M-2) NPK Concentrations Of Weeds And Cotton Plants(%)NPK Uptake By Weeds And Cotton Crop 23
5 4 Results And Discussion 29
1069.09 KB
  4.1 Agro-Phsiological Response Of Cotton To Plant Spacing And Trianthema Portulacastrum L. Density. 29
  4.2 Nitrogen Use Efficiency Through Integrated Weed Management In Cotton 87
6 5 Summary 155
44.73 KB
  Conclusions 160
  Recommendations 161
  Suggestions For Future Research 161
7 6 Literature Cited 140
151.5 KB
8 7 Appendices 156
35.55 KB