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Home > Genetic Basis of Drought Tolerance and Some Polygenic Taits in Bread Wheat Triticum Aestivum L. Crosses

Genetic Basis of Drought Tolerance and Some Polygenic Taits in Bread Wheat Triticum Aestivum L. Crosses

Thesis Info

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External Link

Author

Salman, Said

Program

PhD

Institute

Gomal University

City

Dera Ismail Khan

Province

KPK

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Plant Breeding & Genetics

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/13174/1/said_salman.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726279423

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Comparison for some quantitatively controlled traits viz. number of tillers per plant, flag leaf area (cm2), plant height (cm), spike length (cm), days taken to ear emergence, days taken to maturity, number of spikelets spike-1, 1000-grain wt (g), number of grains spike-1, grain yield plant-1 (g) and drought tolerance using polyethylene glycol (PEG) method; was accomplished for 65 wheat genotypes using cluster analysis for determining phenotypic differences among the genotypes. Based on euclidian distance as a measure of dissimilarity for contrast in the traits and difference in the genetic back ground, eight genetically different genotypes i.e. May-1942, Pari-73, SVP-74, SVP-83, Dera -98, Zam-04, Gomal -08, and Hashim-08 were selected to attempt four cross combination i.e. May-1942 × Dera-98 (cross-1), SVP-74 × Zam-04 (cross-2), Pari-73 × Hashim-08 (cross-3) and SVP-83 × Gomal-08 (cross-4). After developing six basic populations for Joint segregation analysis SA i.e. P1, F1, P2, BC1, BC2 and F2, on the pattern of joint segregation analysis (JSA) the material was planted in three replications into two separate experimental sets i.e. one for determining gene action on quantitatively controlled traits under normal field conditions and the other under artificially created drought conditions in the field. Under normal conditions, genetic effects for the above mentioned morphological traits were determined using JSA of mixed inheritance model consisting of 24 genetic models as statistical approach. The analysis revealed that genetic model D-2 representing mixed one additive major gene and additive dominance polygene was best fitting for some crosses with respect to plant height, spike length, number of spikelets spike-1, number of grains per spike and 1000-grain wt (g). Model D, representing mixed one major-gene and additive-dominance-epistasis polygene was best fitting for flag leaf area and 1000-grain wt in some crosses. Whereas model D-1, representing mixed one major-gene and additive dominance polygene was the only best fitting for plant height in case of cross –2 (SVP-74 × Zam-04). Similarly, model D-4 representing mixed one negative dominance major gene and additive-dominant polygene was the only best fitting model for spike length (cm) in case of cross 2 (SVP-74 × Zam-04. Model E-1 representing mixed two major additive dominance epistatic genes plus additive dominant polygene was best fitting for plant height (cm), number of grains spike-1, days taken to maturity, flag leaf area (cm2), number of tillers per plant, days taken to flowering, grain yield (g) per plant and 1000-grain wt (g) in most of the crosses. Genetic model E, representing mixed two major additive dominance epistatic genes plus additive dominant epistasis of polygene was best fit for days taken to flowering, number of tillers per plant and number of grains spike-1 in few crosses. Whereas, genetic models E-3 representing mixed two major additive genes plus additive-dominant polygene was fitting for number of spikelets spike-1 and number of tillers per plant only in case of cross-2 (SVP-74 x Zam-04).
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51. Adh-Dhariyat/The Scatterers

51. Adh-Dhariyat/The Scatterers

I/We begin by the Blessed Name of Allah

The Immensely Merciful to all, The Infinitely Compassionate to everyone.

51:01
a. And the scatterers, scattering everywhere,

51:02
a. and the bearers with their burden,

51:03
a. and the runners with their gentle ease,

51:04
a. and the distributors by command!

51:05
a. Surely what you are promised is true indeed!

51:06
a. Surely the Time of Final Judgment is sure to come.

51:07
a. And the celestial realm with all its countless tracks!

51:08
a. Surely you are of differing opinions.

51:09
a. Whoever is deluded about it is really deluded.

51:10
a. So doomed be those who just speculate,

51:11
a. those who are oblivious of the realm of the Hereafter.

51:12
a. They mockingly ask:
b. ‘When will be the Time of Final Judgment?’

51:13
a. Tell them:
b. It will definitely come and be ‘The Time when they are going to be tried by the Fire.’

51:14
a. And they will be told:
b. ‘Taste your trial/punishment!
c. This is what you had been seeking to hurry.’

51:15
a. Surely the virtuous will be in the Paradise and flowing springs;

51:16
a. receiving what their Rabb - The Lord will have given them of the reward,
b. for they were definitely seekers of excellence in piety even before the coming of this Time.

51:17
a. For they will sleep only a little of the night...

Language Localization of Foreign Dramas in Pakistan: Transmogrifying Cognizance Against Zealotry and Bigotry

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Modeling Effects of Different Irrigation and Fertigation Strategies on Maize Zea Mays Response and Salinity Buildup in Root Zone under Drip Irrigation

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