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Evaluating Bt Cotton Gossypium Hirsutum L. under Different Management Practices

Thesis Info

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Author

Bilal, Muhammad Faisal

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/123456789/2120/1/2377S.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726101840

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Removal of early fruiting branches with optimum/higher nitrogen and potassium dose can cause more source and no sink at early stages leading to delay in onset and progression of senescence in Bt cotton. The present investigations were carried out to find out interactive effect of square/fruiting branch removal in Bt cotton cultivar IR-3701 using different nitrogen and potassium doses. Two experiments were planted during 2011 and repeated during 2012 at the Agronomic Research Area, University of Agriculture Faisalabad. First experiment comprised of manual alteration of plant architecture i.e. F1: no fruiting branch removal, F2: removal of first fruiting branch, F3: removal of first and second fruiting branch, F4: removal of all squares (floral bud) from first fruiting branch, F5: removal of all squares from first and second fruiting branch; and three nitrogen rates i.e. N1: 175, N2: 225 and N3: 275 kg ha-1. Removal of first and second fruiting branch and removal of all squares from first and second fruiting branch along with increasing nitrogen dose improved yield, yield components and quality of cotton as well as helped in delayed onset of senescence and in increasing Cry1Ac concentration in boll pericarp; but on the basis of marginal rate of return, removal of first and second fruiting branch with medium level of nitrogen application (225 kg N ha-1) was the best treatment combination. In second experiment manual alteration of plant architecture (same treatments as in experiment 1) was combined with three potassium rates i.e. K1:50, K2: 100 and K3: 150 kg K ha-1. Results showed that removal of first and second fruiting branch and removal of all squares from these branches at higher level of potassium application (150 kg K ha-1) improved yield, yield components and quality traits, reduced premature senescence and also improved Bt gene expression in late season by increased uptake of N and K in plant. Highest BCR as well as maximum MRR were obtained by supplying the crop with 150 kg K ha-1 and removing first and second fruiting branches at early stages.
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خیر ہی خیر سر بہ سر ہونا

خیر ہی خیر سر بہ سر ہونا
کتنا مشکل ہے بے ضرر ہونا

پوچھ اُن سے جو لوگ بے گھر ہیں
کیسا ہوتا ہے اپنا گھر ہونا

زخم نے جا لیا رگِ جاں کو
کیا ہوا تیرا چارہ گر ہونا

نہ سنے نالے آسماں نے مرے
ہائے نالوں کا بے اثر ہونا

کتنی آساں ہے خوب تر کی طلب
کتنا مشکل ہے خوب تر ہونا

دے گیا عمر بھر کے پچھتاوے
سب دعائوں کا بے ثمر ہونا

پا لیا رازِ زندگی تائبؔ
آ گیا کام در بہ در ہونا

اسلام اور یہودیت میں تصور طلاق کا تقابلی جائزہ

A Comparative Review of Divorce in Islam and Judaism The theme of exchange among religions and similar investigation of religions has turned out to be significant in the current time. Many religious scholars have presented a comparative overview of the subject of many commandments and beliefs in religions, but the issue of divorce in Jews and Islam as a regular subject is almost never discussed. Although it is mentioned as an ancillary subject, such books were written on the topics of marriage and divorce in world religions. But question is, why is divorce comparative review important in Judaism and Islam? Because most of the believers in Islam and Judaism are based on their religious teachings and worried about the problem of rising numbers of divorces. According to the principles of comparative study the researchers have tried to do work on this topic in an objective manner. Finally, it has been concluded that the teachings of these two religions are in principle quite alike. While there is some disagreement on the side issues that open the door to mutual dialogue, it is possible that through comparative research on other topics between these two religions is conducted it will provide further avenues of dialogue and mutual understanding between two major revealed religious traditions.

Role of Teacher’S Constructive Feedback in Improving Grade 5 Students’ Writing Skills in a Public School in Karachi

This study explored the role of teacher constructive feedback in supporting students’ writing skills. The study was conducted in Grade5 in a public school in Karachi. The study employed action research under qualitative research design over the three weeks comprising of three cycles. The data was collected in three main phases: reconnaissance phase, intervention phase and post-intervention phase. The data collection tools were; classroom observations, pre and post-test, focus group discussions, students’ notebook analysis, and my own reflections on classroom teaching. The research was conducted in the entire class however, students’ data i.e. written and oral responses, come from six students, who were selected randomly. The findings earlier indicated that students were not familiar with the different strategies of feedback processes. They were used to get feedback on their drafts from their teacher in a very traditional manner. They were also assuming that the purpose of highlighted errors by a teacher was, to correct and memorize text so that they could produce an error-free draft and could pass their exam with good grades. It was also found that writing skill was the least important skill for them. Based on the findings of the reconnaissance stage, I taught six lessons in three cycles. The overall findings revealed that constructive feedback is the scaffolder, which enables students to strengthen their learning of writing skills. The progress in their understanding of writing through various constructive feedback strategies appeared gradually. For example, the graphic organizer worked as an energizer for the students, verbal and written questioning techniques provided them with the opportunity to think and respond in detail. Similarly, provision with the opportunity to the students for self-assessment and self-reflection was another factor to promote students learning through sharing their views with the teacher. Likewise, teacher descriptive feedback and employment of rubric helped students’ to address their language writing difficulties. It further indicated that both the feedback processes and process writing approach are interlinked and both allowed students to reflect, revisit and reproduce an improved draft. It also pointed out that the teacher timely and ongoing feedback has the potential to develop students’ writing skills, which required a quality time and effort from the teacher. The findings also informed that feedback is not an isolated activity, rather it is an interactive and two-way process where the teacher and student are engaged in the process. However, the traditional and routine way of teaching and assessment