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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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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

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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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ہوئے جد دے یار بیگانے

ہوئے جد دے یار بیگانے
بنے دشمن کل زمانے

اساں ترس گئے یار ملن نوں
تیری کیوں نہیں ڈھکدی خانے

کتے پھلاں اتے تتلی
کتے شمع تے پروانے

عشق کیتا زور زلیخا
ونڈ دتے مال خزانے

گئے تارے منہ لکا کے
چن چڑھیا جد آسمانے

سنگ جس دی عمراں گزری
اجے غیر ہیں اس دے بھانے

کرو رحمت یا محمدؐ
تیرے امتی سب دیوانے

بھانویں ہائی زلیخا جھوٹی
گئے یوسف بندی خانے

کیوں نیوں اجیہا لایا
مینوں دنیا دیندی طعنے

کئی بے گناہ وچ جیلاں
کئی بے گناہ وچ تھانے

اوہدی پلکاں وانگر سوئیاں
جیویں چڑھیا تیر کمانے

اوہ بے پرواہ کہاوے
جیہڑا مالک کل جہانے

تفسیر قرآن میں ام المؤمنین سیدۃ عائشه کا مقام

Quran is the absolute and error free source of knowledge for all mankind. The words and meanings of the Quran both have been revealed by Allah and will remain unchanged for ever. The holy Quran was explained by the Holy prophet and by sahaba as well. Later on different scholars of Islam have made notable contribution in this regard. Many companions of the Holy prophet are famous in the explanation of the Holy Quran. Although Syyeda Aeshah is famous in the field of Hadith but she is one of most prominent Mufassrah of the Quran too. She has deep and correct knowledge of the Holy Quran. In this Article the status of Sayyedah Aesha in the field of tafseer has been discussed. Hopefully the readers will get useful information from this Article

Phonetic Flexibility and Phonological Process of English: A Comparative Study of English and Pashto Sound Systems

English language like every other spoken language consists of sounds and patterns of sounds. English phonetic system has 44 phonemes or the basic contrastive units of sounds, also termed as International Phonetic Alphabet (IPA). There is a lot of variability and discrepancy in pronouncing these phonemes within the language from context to context. Like human beings they are affected by their neighborhood or contiguity. This of course, gives rise to very interesting and strange phenomenon. On account of variability of the same sounds or phonemes, the pronunciation of words become easier, this in fact shows the flexibility of the phonetic system of English language. This reality of change of pronunciation in the basic sounds of English language is also observed among the non-native speakers of the language. Perhaps on account of flexibility and phonological processes, English language has adopted various forms such as Black English, African English, American English, Canadian English, Hindish, etc. No doubt, this is one of the reasons of diversion from the standard language, yet a very strong one. One of the hazards for the users of English is that the language has many more speech sounds than it has letters of the alphabet. In some of the cases it lacks in one to one correspondence between sounds and letters. We some times know what a word means through our reading experience but we are not sure whether a particular vowel is short or long, whether a particular consonant is silent or not, where the stress should be or not etc. This discrepancy proves to be problematic for the non-native learners of the language. The main purpose of this thesis is to focus the problems faced by Pakhtu/Pashto learners of English relating their pronunciation. An attempt is made to highlight those problems caused by certain phonological processes such as assimilation, elision and linking etc. An effort is also made to make it clear for the Pashto learners that there is a great deal of difference between the way the words are pronounced in isolation and in connected speech. It is difficult for any non-native as well as Pashto speakers of English language to speak hundred percent like native speakers. Two speakers may not pronounce the same utterance exactly alike and no two pronunciations of a single word uttered by the same speaker may be exactly the same. Within an utterance there could be infinite chances of variation. Deviations in pronunciation from Standard English are a common and natural phenomenon throughout the world. As long as the content of the utterance is understandable such deviations are accepted worldwide. Moreover, by accepting such variations English language proves itself to be a living and versatile language. This research tries to make it clear that the element of flexibility facilitates to get ease in spoken expression and encourages the speakers within limits of tolerance to speak in a liberal atmosphere.