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Impact of Growth Promoters on Te Storage Life of Moringa Leaf Extract As Biostimulant in Wheat

Thesis Info

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External Link

Author

Khan, Shahbaz

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Agricultural Technology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/9686/1/Shahbaz_Khan_Crop_Physiology_2016_HSR_UAF_23.02.2017.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726416222

Similar


Moringa leaf extract (MLE) is a natural crop growth enhancer being rich in minerals, antioxidants and phytohormones. However, type of moringa and effective storage life of extract was not known. The research was planned to compare the effectiveness of MLE from different landraces of Moringa oleifera present in Pakistan and to optimize its storage life. During first experiment, leaf extracts were taken from three landraces i.e. white seeded moringa (WSM), black seeded moringa (BSM) and PKM1 (Indian variety) and were applied as priming agents and foliar application alone or in combination with hydrogen peroxide, ascorbic acid and salicylic acid on wheat. All the priming strategies significantly invigorated the wheat. Priming was more effective by moringa alone than blending with other compounds. Among the type of moringa as a source of extract, WSM was more effective in reducing the time to start emergence, E50 and increasing the seedling vigor. On the basis of the results, WSM was selected for further experimentations. During second experiment, both priming and foliar application of leaf extract of white seeded moringa alone and in combination with growth promoting substances improved the yield parameters while maximum performance of wheat crop was observed where alone MLE was applied as a foliar spray as compare to control. During third experiment, MLE alone and in combination with growth promoting substance and preservative was stored at low and ambient temperature. Chemical analysis of stored MLE showed that total phenolics and ascorbic acid concentrations were decreased with increase in storage time. Fresh MLE performed better than stored MLE regarding germination and seedling fresh and dry weight as well root shoot length. During the last experiment, fresh and stored MLE was applied as foliar spray to observe the crop growth enhancing potential of stored MLE. All MLE treatments improved both biochemical and yield parameters of wheat as compare to control which received no exogenous application of MLE. The growth enhancing capabilities significantly decreased with storage time under both sowing conditions. Worth seeing observation was, increase in biological and economic yield in late sown crop plants due to foliar application of fresh MLE as compare to control in timely sown wheat. Maximum biostimulant potential of leaf extract of white seeded moringa, alone and in combination with growth promoting substances, was observed regarding seedling performance which were correlated with higher contents of ascorbic acid and phenolics.
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باب سوم: آبی وسائل کا مطالعہ

پانی کی اہمیت و افادیت

تعارف(Introduction)

عربی میں پانی "ماء"کہلاتاہے۔ پانی زندگی کے بنیادی مادہ کی حیثیت رکھتا ہےتما م مشروبات کا سردار ہے، کائنات کا اصلی اور حقیقی عنصر ہے۔ آسمان پانی کے بخارت سے بنائے گئے ہیں جبکہ زمین اس کی جھاگ سے پیدا گئی ہے۔ اللہ تعالیٰ ہر چیز کو پانی کے ذریعے زندہ رکھا ہے۔

کائنات چار ارکان کا مرکب ہے جن میں ایک پانی ہے۔ جیساکہ علامہ الجاحظ ؒ لکھتے ہیں:

"الأركان الأربعة، التي هي الماء والأرض والهواء والنار"[1]

امام ابن قیم ؒ رقمطراز ہیں:

"مَاءٌ: مَادَّةُ الْحَيَاةِ، وَسَيِّدُ الشَّرَابِ، وَأَحَدُ أَرْكَانِ الْعَالَمِ، بَلْ رُكْنُهُ الْأَصْلِيُّ، فَإِنَّ السَّمَاوَاتِ خُلِقَتْ مِنْ بُخَارِهِ، وَالْأَرْضَ مِنْ زَبَدِهِ، وَقَدْ جَعَلَ اللَّهُ مِنْهُ كُلَّ شَيْءٍ حَيٍّ"[2]

مذکورہ عبارت سے صراحت ہوتی ہے، پانی مادہ حیات ہے جو آسمان، زمین اور ہر زندہ چیز کی تخلیق میں بنیادی حیثیت کا حامل قدرتی وسیلہ ہے۔

انسائیکلوپیڈیا آف بریٹانیکا میں ہے:

“Water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. Water is one of the most plentiful and essential of compounds .”[3]

انسائیکلوپیڈیا آف ریلیجن کا مقا لہ نگار لکھتا ہے:

“Water is essential for man’s life ;it ensures his nourishment by fertilizing the land. It is more than nourishment ,since it is the source of nourishment.”[4]

آکسفورڈ انگلش ڈکشنری کے مطابق پانی (water) :         

“The liquid of which seas, lakes, and rivers are composed ,and which as rains and issues from springs. When pure , it is transparent...

قرون وسطی میں مصر سے ملتان تک قرامطہ کے سیاسی و مذہبی اثرات

With the decline of strong Muslim Khilafate various sectarian based movements proved a serious danger for the Muslim world. Qramtah movement was most famous among them. During the latter period of Abbassid Khila-fate, Qaramtah appeared very strongly. They had a strong hold in different part of Islamic state. Bahrin was their strong head quarter and then they spread all around in state especially in rural areas. They defeated a large and powerful army of Khalifa with a small army severl time. Qramtah killed a millions of innocent Muslims. They captured Makkah and disgrced “Bait Ullah” and banned Hajj for almost 20 years. They propagated their philosophy and beliefs in all over the Muslim world by force. Qramtah also established a strong government in Multan after the departure of Muhammad bin Qasim. Jalam bin Shaban was a famous Qramtian ruler of Multan In 1004 A.D. When Mehmood Ghaznavi came in Multan at that time Abul Fatih Dawud Qramti was the ruler of Multan Mehmood arrested him and destroyed the power of Qramtah in Multan. Qramtah continued serious unrest in Islamic world for four centuries. This movement effected badly the Muslim world and they have become politically weak against their political rival Christianity.    

Synthesis and Characterization of Mg and Ge Doped Cu0. 5Tl0. 5 Ba2can-1Cuno2n+4-Δ N = 3, 4, 5 Superconductors

Different series of polycrystalline superconductor, Cu0.5Tl0.5Ba2Ca4-xMgxCu5O14-δ (x = 0, 1, 2 and 3), (Cu0.5Tl0.5)Ba2Ca2Cu3-yGeyO10-d (y = 0, 0.5, 0.75 and 1.0) and (Cu0.5Tl0.5)Ba2Ca3(Cu4-yGey)O12-d (y = 0, 0.3, 0.6 and 0.9) have been synthesized by solid-state reaction method. The structure and physical properties were investigated by powder X-ray diffraction (XRD), resistivity, ac-susceptibility and Fourier transform infrared absorption spectroscopy (FTIR). X-ray diffraction scans of polycrystalline samples of Cu0.5Tl0.5Ba2Ca4-xMgxCu5O14-δ (x = 0, 1, 2 and 3) samples show tetragonal structure following P4/mmm space group. The dominant phase in x = 0 sample is CuTl- 1234 while the remaining all Mg doped samples show the projected CuTl-1245 phase with a small inclusion of impurity phases. It suggests that the presence of Mg plays a very vital role in synthesis of five planar CuTl-1245 compounds. With the partial substitution of Ca with Mg in the samples, the CuO2 planes become uniformly doped due to improved inter-planer coupling which results in the enhancement of Tc (R = 0) as well as the magnitude of diamagnetism. Further superconducting properties of the samples have been enhanced by carrying out annealing experiments in nitrogen air and oxygen atmospheres. The enhanced superconductivity in different annealing environments have been attributed to the optimization of carrier density in the OPs and the IPs. Oxygen annealed samples show the best superconductivity among all, which have been attributed to the optimization of carrier concentration in the CuO2 planes and improved weak link behavior due to the intercalation of the oxygen in the unit cell and at the intra-grain and inter-grain sites. Superconductivity in the Cu0.5Tl0.5Ba2Ca2Mg2Cu5O14-d superconductor has been optimized by varying both time and temperature during the air annealing experiments by attaining Tc ~ 132 K. In (Cu0.5Tl0.5)Ba2Ca2Cu3-yGeyO10-d (y = 0, 0.5, 0.75 and 1.0) samples, synthesized at 860oC, y = 0 and 0.5 show the CuTl-1223 tetragonal phase but y = 0.75 and 1.0 develop CuTl-1234 as the dominant phase. It indicates that the substitution of Ge lowers the synthesis temperature and for single phase sample, temperature less than 860oC seems more plausible. Four planar Ge doped (Cu0.5Tl0.5)Ba2Ca3(Cu4-yGey)O12-d (y = 0, 0.3, 0.6 0.9) superconductors were prepared at 870oC rather than 880oC and investigated for their superconducting properties. X-ray diffraction scans of the samples confirm the CuTl-1234 phase. Increased Ge substitution at the Cu planar sites has been found to suppress the superconducting properties of the samples. Possible causes include the impurity scattering and the carrier depletion due the replacement of Cu2+ ions with Ge4+ ions. The superconductivity has been restored by carrier doping through annealing processes. FTIR analysis has also been conducted and the role Ge in the variations of different phonon modes has been discussed. Also the effect of oxygen annealing on these phonon modes have been observed and analyzed. The fluctuation induced conductivity of Cu0.5Tl0.5Ba2Ca4−xMgxCu5O14−δ (x = 1, 2) and Cu0.5Tl0.5Ba2Ca2Cu2M1O10-d (M =Si, Sn, Ge) superconductor samples has been done. FIC data of the as-prepared Cu0.5Tl0.5Ba2Ca4−xMgxCu5O14−δ (x = 1) sample does not fit with 2D, 3D AL equations, but for x = 2 and the oxygen annealed samples seem to fit well with 2DAL, 3D AL equations with two distinct cross over temperatures. In the samples the interlayer coupling strength J is found to increase with increased Mg content and oxygen post annealing. Higher concentration of Mg seems to lower the anisotropy along the c-axis and thus improves the inter-planer coupling. It results in 2D to 3D cross over of the conductivity and enhancement of the interlayer coupling strength J. The 2D to 3D cross over and higher J values in post annealed samples can be attributed to the change in the carrier concentration in the CuO2 planes, and improved weak link behavior, brought about by the intercalation of the oxygen in the charge reservoir layer. The excess- conductivity data of Cu0.5Tl0.5Ba2Ca2Cu2M1O10-d (M = Si, Sn and Ge) samples also shows two cross over temperatures and three distinct exponents. Si and Sn doped samples with almost same critical temperature have not shown much diversity in different parameters such as room temperature resistivity, transition width, a (rN 0 K) etc. Similarly not much difference is seen in the dimensionality exponents and the corresponding temperature ranges. The Ge doped sample with lower critical temperature has shown different FIC parameters with large transition width. Ge doped sample has shown higher 3D character; in this sample 2D fluctuations are found in very small temperature range. Here a possible link between the confinement of the 2D fluctuations to a narrow temperature window and the lower critical temperature of the Ge doped sample can be conjectured but not claimed.