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Home > The Potential for Breeding Upland Cotton under Limited Water Conditions

The Potential for Breeding Upland Cotton under Limited Water Conditions

Thesis Info

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Author

Iqbal, Khalid

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2010

Thesis Completion Status

Completed

Subject

Natural Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/599

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727588952

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The primary objective of the present work described in this manuscript was to develop some understanding of improving water stress tolerance in upland cotton through selection and breeding. Root is an important plant organ related to drought stress and significant achievements have been obtained, using rooting technique, for other stresses e.g. salinity. To achieve the objective, 80 cotton accessions were screened out measuring four morphological plant characters including root length, and one physiological parameter i.e. cell membrane injury. Water stress imposed for 45 days significantly reduced shoot length, root length, shoot fresh weight and shoot dry weight of 80 cotton accessions, and these accessions differed to a great extent from each other, and sensitivity varied from very tolerant to very sensitive. Some of the accessions like B-557 and DPL-26 showed small leakage of ions due to stress, and were revealed as moisture stress tolerant accessions. Cell membrane injury showed a positive relationship with moisture stress tolerance. The injury was less in tolerant accessions, thus it proved to be a reliable indicator of water status. Indices of stress tolerance showed a wide range of variability based upon parameters measured. The genetic basis of variation in moisture stress tolerance was investigated using the diallel technique. Both additive and dominance properties of genes appeared to control variation at low and high moisture stress, but genes acting cumulatively were more associated with the stress phenomenon. Due to the additive gene effects, estimates of narrow sense heritabilities for water stress tolerance were greater, showing that rapid improvement in the character may be made through single plant selection from F2 segregating population, based upon final productivity of seed cotton yield. Physiological mechanisms like cell membrane injury, relative water content and excised leaf water loss are also conditioned by polygenes, and thus may be improved through selection. The overall conclusion of this work is that cotton varies for moisture stress tolerance, and this tolerance has a reasonably good additive component, and further breeding work would be valuable for developing upland cotton cultivars suitable for moisture deficit area.
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پروفیسر خورشید الاسلام

پروفیسر خورشید الاسلام
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وہ جولائی ۱۹۱۹؁ء میں مراد آباد اور بجنور کی سرحد پر واقع ایک گاؤں امری میں پیدا ہوئے، یہ اور مشہور شاعر اختر الایمان گہرے دوست تھے اور فتح پوری ہائی اسکول میں ساتھ ہی پڑھتے تھے اور دونوں اسکول کے مشہور ڈبیٹر اور بہترین مقرر تھے، بی اے کرنے کے بعد خورشید الاسلام صاحب کچھ عرصے رسالہ ’’آج کل‘‘ کے سب اڈیٹر رہے اور ۱۹۴۳؁ء میں ایم اے کرنے کے لیے علی گڑھ مسلم یونیورسٹی آئے، یہاں پھر اختر الایمان کا ساتھ ہوا اور دونوں ۱۹۴۴؁ء میں یونیورسٹی کی نمائندگی کے لیے حیدر آباد گئے اور ہفت روزہ اردو کانگریس میں شریک ہوئے، خورشید الاسلام صاحب ۱۹۴۵؁ء میں ایم اے کرنے کے بعد علی گڑھ یونیورسٹی کے شعبہ اردو میں لکچرر ہوگئے اور ۱۹۷۳؁ء میں پروفیسر ہوئے،اور جب پروفیسر آل احمد سرور سبکدوش ہوئے تو یہ صدر شعبہ ہوئے۔
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لفظ خاتم کا معنی و مفہوم ائمہ لغت ومفسرین کے اقوال کی روشنی میں ایک تحقیقی جائزہ

Almighty Allah Has bestowed us with more than one lakh andtwenty four thousand prophets for guidance of human being. It started with Hazrat Adam As and end up with hazrat Muhammad (PBUH). As it was endedwith hazrat Muhammad PBUH, so he was called with the title of ‛. ‚خاتم; النبیینThe Holy Prophet PBUH himself said “No Prophet will come after me”. Thisbelief keep pivotal value among all beliefs. According to Muslim scholars, anyone who has doubt on finality of Prophethood will be considered nonMuslim. Therefore in this article the word ‛ ‚خاتمis analyzed comprehensively in the light of various sayings of different Muslim scholars

Phytochemical Assessment and Biological Activity of Some Selected Ethno Medicinal Plants

The medicinal plants are strongly used as major bio resources of modern synthetic drugs because of their benefits for the society related to humans in the field of medicine. The fresh roots, stems, leaves, flowers, seeds and fruits of five selected ethnomedicinal plants which were collected, dried under shade and ground. Further; powdered plants materials were extracted by different extracts, and then screening of phytochemical were being done. The findings of present study indicated that an appreciable amount of phytochemical including alkaloid, saponin, phenolic compound, flavonoid, tannin, steroid, terpenoid, glycoside, carbohydrate, protein and amino acid were observed in the different parts of five selected ethnomedicinal plants. It has been confirmed that the amount of aqueous extract showed maximum phytochemical than methanol extract. The aqueous extract was the best solvent for extraction of including alkaloid, protein amino acid and carbohydrate; whereas methanol extract was the best solvent for phenolic compounds, flavonoid and Tannins, terpenoid, steroid fat and oil. The roots and seeds of the selected plants for the present study showed good sources of carbohydrate; whereas the highest percentage of protein was observed in the leaves and seeds of the plants. The leaves of the plants are the rich sources of phenolic compound, flavonoid and tannin than other parts. The concentration of alkaloids was higher in the seeds and fruits. This present observation shows that these plants belong to the richest sources of calcium ranging from (1840–17360 mg/Kg) and sodium ranging from (504-2480 mg/Kg). The leaves and roots were indicated the richest sources of calcium; whereas most parts of solanum surrattense and Maringa oleifera are also rich sources of calcium. But sodium will be beneficial to consumers because of high values. Iron content ranging from (10.98–1115.2 mg/Kg) and potassium content ranging from (866- 1361 mg/kg) were investigated while Achyranthes aspera richest sources of iron and potassium. Zinc is the second most abundant trace element in the body in all the selected plants which show good sources of zinc. Ricinus communis is a good source of copper. The roots and seeds of some plants showed good sources of manganese. Cadmium, lead and cobalt were showed around permissible limit in the most parts of the plants.It is beneficial for the VII consumers because of high toxic. The significant content of antioxidant ranging from (0.13–0.66 %) was observed.The higher concentration of antioxidant content in the leave and flower in the most of the selected plants are the richest sources of antioxidant possessing phenolic compound, flavonoid and tannin.Antibacterial activity including the Escherichia coli, Bacillus cereus and Staphylococcus aurous were found to be most sensitive while Klebsiella pneumonia least sensitive in the present study. The growth of bacillus cereus is inhibited by the different parts of the selected plants. The inhibition zone is found between the ranges of (0.0- 28mm) against Escherichia Coli. The maximum inhibition zone was observed against Escherichia coli by the flowers parts in the most of the selected plants. The growth of bacillus cereus and Staphylococcus aurous is inhibited zone is foundbetween the ranges of(0.0- 22 mm) by the different parts of selected plants while the inhibition zone is found range between (0.0- 15 mm) against Klebsiella Pneumonia by the different parts of selected medicinal plants. The flower of Maringa oleifera was possessed antibacterial protein and peptide which showed highly significant against Staphylococcus Aurous, Escherichia Coli, Klebsiella Pneumonia, Pseudomonas, proteus and enterobacter. The present findings suggest that several phytochemical are likely to contribute in medicinal properties and indicate that these plants should be taken for medicinal purposes. They can cure humans from various types of diseases.