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Genetic Evaluation of Maize Zea Mays L. Accessions for Grain and Fodder Yield

Thesis Info

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Author

Qurban Ali

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2014

Thesis Completion Status

Completed

Subject

Applied Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/2505/1/2852S.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726297075

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The present study was carried out in the experimental area of the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad Pakistan to evaluate the maize accessions for grain and fodder yield. Eighty maize accessions were collected from the Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, National Agriculture Research Centre, Islamabad and Maize and Millet Research Institute Sahiwal, Pakistan. Out of these 80 accessions twelve lines were selected on the basis of batter performance, heritability, genetic advance and higher genotypic correlation among cob length, cob diameter, grain rows per cob, 100-seed weight, grain yield per plant, green fodder yield, photosynthetic rate, chlorophyll contents, photosynthetic water use efficiency and leaf temperature at maturity stage from experiment 1. The selected parents were crossed following 6 × 6 North Carolina mating design II. The germplasm consisting of 12 parents and 36 crosses was evaluated in field experiment for grain, fodder yield, and then quality traits at maturity stage. It was concluded from present study that genotypes may be selected on the basis of their better performance of cob length, cob diameter, grain rows per cob, 100-seed weight, grain yield per plant, green fodder yield, photosynthetic rate, chlorophyll contents, photosynthetic water use efficiency and leaf temperature at maturity for grain and green fodder yield while fodder cellulose percentage, fodder crude protein percentage, ash percentage, grain oil percentage, embryo percentage, neutral detergent fibre percentage and fodder moisture percentage as quality for improvement of grain, fodder yield and quality. Higher male additive variance, female additive variance, male × female interaction were found for plant height, stem weight, green fodder yield, leaf weight, leaf length, leaf area, chlorophyll contents, sub-stomata CO2 concentration, transpiration rate, cob weight, stover weight, grain yield per plant, fodder crude fibre percentage, fodder crude protein percentage, nitrogen free extract percentage, acid detergent fibre percentage, neutral detergent fibre percentage and fodder cellulose percentage. Higher dominance effects and degree of dominance was found for leaf area, leaf temperature, leaf length, stem weight, green fodder yield, chlorophyll contents, sub-stomata CO2 concentration, photosynthetic rate, cob weight, 100-seed weight, grain yield per plant, fodder nitrogen free extract percentage, fodder crude fibre and protein percentage, fodder ash percentage, grain starch percentage, acid detergent fibre percentage, neutral detergent fibre percentage and fodder cellulose percentage. The inbred lines B-316, B-11, EV-340, Pop/209, B-336 and EV-1097 showed higher GCA for most of grain, fodder and quality traits which indicated that these lines may be used for the development of synthetic varieties. The F1 hybrids B-11×E-322, EV-1097×Pop/209, B- 327×F-96, B-336×B-316, EV-1097×E-322, B-327×E-340, Sh-139×Pop/209, EV-1097×EV- 340, EV-1097×B-316, Raka-poshi×Pop/209, B-336×EV-347, B-336×Pop/209, EV- 1097×Pop/209, B-316×E-340, Raka-poshi×F-96, B-327×Pop/209 showed higher SCA for most of grain, fodder and quality traits which indicated that these lines may be used in future for the development of hybrids and heterosis breeding programe.
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پروفیسر ایم ایم شریف

پروفیسر ایم۔ایم شریف
پروفیسر ایم۔ایم شریف اگرچہ اصلاً پنجابی تھے لیکن درحقیقت وہ تھے علی گڑھ کاسرمایۂ گراں پایہ۔ وہ یہاں طالبِ علم رہے، پھر فلسفہ کے پروفیسر اورصدر شعبہ ہوئے۔یونیورسٹی کے پرووائس چانسلر بھی بنے اوراپنے علم وفضل، اخلاق وعادات اورہمدردی ومحبت کے باعث یونیورسٹی کی سوسائٹی میں نہایت مقبول اور ہردلعزیز ہوکر رہے،تقسیم کے بعد علی گڑھ کی یہ دولت پاکستان منتقل ہوگئی تواب اُن کے تحقیقی اورتصنیفی جوہر کھلے، چنانچہ ادب، فلسفہ اوراسلامیات پر انھوں نے انگریزی اور اُردو میں اتنی فکرانگیز اورمحققانہ کتابیں اورمقالات لکھے جوایک مصنف کے فخر کرنے اور اس کو علم وادب کی دنیا میں زندہ جاوید بنانے کے لیے کافی ہیں۔ اسی بناء پر اُن کو پاکستان میں علمی اعزاز بھی بڑے سے بڑاحاصل ہوا،ادارۂ ثقافتِ اسلامی کے ڈائرکٹر ہوئے،پاکستان فلاسفکل کانگریس کے صدر چُنے گئے،پنجاب یونیوسٹی میں فیکلٹی آف آرٹس کے ڈین مقرر ہوئے۔ان کاقلم بڑا شگفتہ نگار اورباغ وبہار تھا۔ طبعاً اپنے نام کی طرح نہایت شریف اوراعلیٰ اخلاق وکردار کے انسان تھے۔راقم الحروف کی پہلی ملاقات اُس وقت ہوئی تھی جبکہ مسلم یونی ورسٹی کی انجمن تمدن وتاریخِ اسلامی کی دعوت پر۴۰ء میں راقم نے یونیورسٹی کے یونین ہال میں عمر میں پہلی مرتبہ ’’مسلمانوں کے زوال کے اسباب‘‘ پرتقریر کی تھی اورپروفیسر محمد شریف مرحوم نے اُس جلسہ کی صدارت کی تھی ۔تقسیم کو داد دیجیے کہ موصوف کاانتقال ہوگیااوراس کی اطلاع ہم کوکئی ماہ کے بعد ابھی پچھلے دنوں لاہور کے ماہنامہ ثقافت کے چار مہینوں کے یکجائی نمبرسے ہوئی، اناﷲ وانا الیہ راجعون۔ اﷲ تعالیٰ مرحوم کومغفرت وبخشش کی نعمتوں سے نوازے ۔
[جولائی ۱۹۶۶ء]

ANALISIS FAKTOR YANG MEMENGARUHI PENURUNAN DISIPLIN SISWA SELAMA PEMBELAJARAN ONLINE AKIBAT PANDEMI COVID-19

Penelitian ini dilatarbelakangi oleh terdapatnya banyak siswa yang mengalami penurunan kedisiplinan selama pembelajaran online, baik itu dalam mengikuti pembelajaran online, dalam hal mengumpulkan tugas, maupun dalam hal lainnya. Penelitian ini membahas mengenai faktor-faktor yang memengaruhi penurunan disiplin siswa atau peserta didik selama pembelajaran online. Penelitian ini bertujuan untuk mengetahui dan menganalisis faktor-faktor yang memengaruhi penurunan disiplin siswa selama pembelajaran online akibat pandemi Covid-19. Metode penelitian yang digunakan dalam penelitian ini yaitu metode penelitian deskriptif kualitatif. Data dalam penelitian penulis dapatkan melalui artikel dan juga buku yang memiliki relevansi dengan artikel ini. Untuk mendukung data kepustakaan atau literatur tersebut, data juga didapatkan dengan melakukan wawancara. Berdasarkan data yang telah diperoleh dalam penelitian, hasil penelitian menunjukkan bahwa terdapat beberapa faktor yang memengaruhi penurunan disiplin siswa selama pembelajaran online akibat pandemi Covid-19, yaitu (1) menurunnya motivasi belajar siswa, (2) sarana dan prasarana yang kurang memadai, (3) minimnya waktu luang orang tua, dan (4) penggunaan gawai yang berlebihan.

Improving the Productivity and Sugar Recovery of Sugarcane by Potash Nutrition under Different Planting Methods

Sugarcane (Saccharam officinarum.L) is main stay for sugar industry in Pakistan. However, our average yield is for less than that of world average owing to the following reasons namely inappropriate use of cultivars, imbalance use of fertilizers and improper use of planting methods. In order to investigate and finding out a viable solution to the agronomic and management issues, a study consisting of two experiments was carried out.Randomized complete block design with Split plot design were used for conducting these experiments. First experiment was aimed at evaluating the ratooning, high stripped and sugar yield potential of three cultivars HSF-240, CPF-246 and L-178 under four different planting methods such as Pits with 90 cm spacing, Diagonal pits with 90 cm spacing, 90 cm spaced double row stripsand 120 cmspaced trench planting. Second experiment was focused to investigate role potash nutrition for cane crop under different planting methods. Four potash nutrition levels like 0, 100, 200 and 300 kg/ha were in sub plot whereas four planting methods (same as first experiment) were in main plot. After analysis of variance, it was inferred that 100 kg/ha potash nutrition is best treatment with planting method 90 cm spaced pits of diameter 90 cm in diagonal arrangement because of better stripped cane yield, high sugar recovery was possible by the combination of above mentioned treatment .Nutrient efficiency of 76.54 kg/kg and 53 kg/kg during both plant crop and ratoon crop year was also attainable with the supplementation of each additional kg of potash. Spaced trenches of 120 cm were also economically profitable; however, their economic yield is comparable with 90 cm spaced pits of diameter 90 cm. Potash nutrition is also important source for stripped cane yield improvement in ratoon crop but economically has less benefits as compared to benefit cost ration (BCR) of control and other treatments.However, sugar recovery was enhanced by the application of potash nutrition during both plant and ratoon crop years. The CPF-246 was found to be a highly potential cultivar which gave better yield of 95 t/ha and a good sugar recovery of 12.4%. The CPF-246 was also the best ratooning cultivar because it increased sugar recovery and sugar yield because of unique genetic makeup and adoptability to the Pakistani climate. It can be concluded that if sugarcane crop would be sown in 120 spaced trenches with the supplementation of 100 kg/ha K2O, it would be economically proficient with adequate sugar recovery. Moreover CPF-246 is the best cultivar amongst three for better sugar recovery and productivity.