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Home > Pathogenecity and Control of Nematodes Associated With Walnut in Hazara Division

Pathogenecity and Control of Nematodes Associated With Walnut in Hazara Division

Thesis Info

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Author

Saeed, Nadia

Program

PhD

Institute

Hazara University

City

Mansehra

Province

KPK

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Zoology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/12331/1/Nadia%20Saeed%20zoology%202019%20hazara%20uni%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726843255

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This research was done to recognize plant parasitic nematode related to walnut (Juglans regia L.) in Hazara Division, KP, Pakistan. Phytonematodes are of great concern as they are potential pest of plants including crops and trees. Their infestation resulted in yield loss and poor plant growth. Symptoms included stunted growth, yellowing of foliage, early flowering, excessive branching, root lesions and root galls, root tip death and root knots which resulted in adverse effects on the plant. The identified nematode species included Helicotylenchus dihystera, Helicotylenchus digonicus, Helicotylenchus pseudorobustus, Helicotylenchus vulgaris, Helicotylenchus canadensis, Helicotylenchus larvae, Aphelenchus avenae, Tylenchus sp., Tylenchus filiformis, Tylenchus ritae, Pratylenchus vulnus, Pratylenchus neglectus, Pratylenchus penetrans, Trichodorus sp., Meloidogyne larvae, Basiria bajorensis, Basiria kashmirensis and Basiria graminophila from Mansehra and Helicotylenchus vulgaris, Helicotylenchus dihystera, Tylenchus sp., Psilenchus hilarulus and Meloidogyne incognita from Abbottabad. Among identified nematodes Meloidogyne larvae (root-knot nematode), Pratylenchus vulnus, P. neglectus, P. penetrans (root-lesion nematodes) and Trichodorus sp. (Stubby root nematode) were of major concern. Management of phytonematodes is of great importance. In this study inorganic (Carbofuran) and organic (poultry manure, cow dung, horse manure, pigeon manure, castor oil cakes, duck manure, Saw dust) were used for the management and it was found that all amendments were effective against parasitic phytonematodes associated with walnut trees. Organic amendments were effective in the sequence like castor oil > poultry manure > cow dung > pigeon manure > horse manure > duck manure > saw dust. As organic amendments are eco-friendly and easily available therefore, their use is more recommendable as compared to chemical nematicides. Histopathology of the infected walnut roots by Meloidogyne sp. showed that roots were damaged due to nematode activity to a greater extend. Cortex and vascular tissues were completely destroyed. It was observed that feeding sites were induced along with giant cells with egg masses by the second stage juveniles. Cells with multinuclei and densed cytoplasm were observed. Necrosis of the root along with hypertrophy was also seen.
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58. Al-Mujadilah/The Pleading Woman

58. Al-Mujadilah/The Pleading Woman

I/We begin by the Blessed Name of Allah

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

58:01
a. Allah has heard the woman who was pleading with you, concerning the issue of her husband, and was complaining to Allah.
b. And Allah was hearing the conversation between you.
c. For Allah is All-Listening, All-Watching.

58:02
a. Those among you who estrange their women/wives by declaring them to be as their mothers;
b. should know that they can never be made as their mothers, for their mothers are only those who gave birth to them.
c. Indeed, they utter what is highly contemptuous, baseless and false.
d. Yet, assuredly, Allah will be Pardoning, Forgiving to the one who repudiates by zihaar through an atonement.

58:03
a. Those of the husbands who thus estrange their women/wives, then they wish to retract what they had uttered, let them free a captive before any skin-to-skin cohabitation between them.
b. Thus you are being warned so that you will never utter such contemptuous words again.
c. And Allah is Well-Aware of what you do.

58:04
a. And whoever cannot find any captive to set free or does not have the means of doing so, then let him keep Fast for two consecutive months, without any interruption, before any skin-to-skin cohabitation between them.
b. And whoever is unable for reasons of ill health or old age, then let him feed sixty poor people.
c. All this is decreed so that you may believe in Allah, HIS Injunctions and HIS Messenger.
d. And these are the limits set by Allah.
e. And the disbelievers/disobedient - those who will not comply...

تعلیم نسواں: اسلامی روایت اور عصری تحدیات

Religion Islam has given equal rights to men and women in the field of education. For men education was compulsory and women were encouraged to seek education. Both males and females have been referred to using polygamous section for education while women are often encouraged and especially emphasized. The Prophet(SAW)arranged special seats for the gender critical in order to highlight the importance of women education. That was way the passion for special education in women grew so much that women discussed global issues with men and solved to reject men’s judgement. It was the influence of this academic moment that many Muslim women not only made a name for themselves, but also wrote books on various research topic in the field of Hadith, Commentary, Iftaa and many other Sciences. Thanks for this global revolution Muslim rulers not only provided a learning environment for their children but also established large educational institutions for ordinary women. The astonishing thing is that despite this wonderful past today Muslims are unable to provide a safe and secure opportunity for education to women.

Solitary and Shock Wave Structures in the Interstellar Medium.

In this thesis we have discussed linear and nonlinear characteristics of drift waves, drift shock waves and coupled kinetic-acoustic Alfven waves in electron-ion plasma. Density of trapped electrons is calculated by using product bi (r,q) distribution. By using two potential theory for low ? assumption linear dispersion relation of coupled kinetic-acoustic Alfven wave is derived. The plot of linear dispersion relation of coupled kinetic-acoustic Alfven wave is compared for different distribution function. By employing Sagdeev potential approach solitary structures are observed only for sub Alfvenic mode. Considering inhomogeneity in electron-ion plasma linear dispersion relation drift wave is derived. The electrons follow product bi (r,q) distribution function. A comparison of the linear dispersion relation of ion drift wave is carried out for different electron distribution functions. It is observed that drift wave frequency is smaller for spiky distribution (? < 0), whereas its value is larger for flat topped distribution(? > 0). In the nonlinear regime solitary drift waves have also been investigated for different values of spectral indices ? ??? ?. For ? = 0 rarefactive solitary structures are are observed whose amplitude varies directly with the increase of high energy particles (increasing the value of ?). For flat topped distribution ? > 0 there exists only compressive solitons. For spiky distribution ? < 0 both compressive and rarefactive solitary strucures are observed. This is the unique characteristics of spiky distribution that is not observed with Maxwellian and Kappa distribution. Linear and nonlinear analysis of drift shock wave have also been done by considering dissipative effects. During linear analysis, it is observed that frequency of drift wave is significantly modified with the inclusion of disspative effects. Effect of variation high energy particle on the drift wave frequency is also observed. In the nonlinear regime, variation in the strength and steepness of positive and negative polarity drift shock waves are investigated for different values of ?, ?, temperature, magnetic field strength and collision frequency. The negative polarity drift shocks have been observed for only specific range of ? i.e. 0.5 > ? > −0.25 . For rest values of ? under condition ?(? + 1) > 3 positive polarity shocks have been observed. The strength and steepness of these positive polarity drift shocks have been found for different values of ?, different temperature and for different values of magnetic field strength. The results obtained in this thesis are general and can be applied to any region of space and interstellar medium.