Select Currency
Translate this page

EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS

Format: MS WORD  |  Chapter: 1-5  |  Pages: 76  |  2638 Users found this project useful  |  Price NGN5,000

  DOWNLOAD THE FULL PROJECT

EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS

 

ABSTRACT

Four groundnut (Arachis hypogaea L.) varieties (SAMNUT 21, SAMNUT 22, SMANUT 23 and SAMNUT 24) were grown in the Botanical garden, Department of Biological Sciences, Ahmadu Bello University, Zaria to determine the effects of defoliation on the growth and yield of the varieties. The experiments were laid out in a completely randomized design with five treatments (defoliation) levels. The plants were subjected to 5 levels of defoliation: 0 (no defoliation), 25, 50, 75 and 100% at 5 weeks after planting (WAP). The plants were sampled at 4, 7 and 10 WAP for assessment of growth parameters and at harvest the yield parameters were determined. The results of this study revealed that, 75% defoliation increased plant height in most cases. The control and 25% defoliation were found to increase root nodules, shoot and root dry matter, and shoot and root relative growth rate (RGR) in most cases. The 75 and 100% defoliation levels were found to significantly reduce vegetative parameters in groundnut varieties except plant height. The control and 50% defoliation had the highest flower production but flower production decreased with increase in defoliation with 100% defoliation level being the lowest in most cases. Total pods, number of matured pods per plant, haulms weight, pod dry weight and seed weight decreased with increase in defoliation but the number of immatured pods per plant increased with increase in defoliation level. The 25 and 50% defoliation levels were found to increase pod yield and haulms weight respectively but the 100% defoliation level produced the lowest yield in most cases. The data showed that varieties SAMNUT 22 and SAMNUT 21 showed higher values in vegetative parameters and yield parameters than the other varieties. Also, SAMNUT 23 showed the lowest values in both vegetative and yield parameters. In conclusion, the impact of defoliation on both vegetative and yield varies among varieties. The 25 and 50% defoliation increased vegetative and yield parameters in most cases but the 75 and 100% defoliation levels adversely reduced plant development and yield.

 

CHAPTER ONE

INTRODUCTION

1.1 Origin and Classification of Groundnut

Groundnut (Arachis hypogea L.) belongs to Family: Fabaceae, Sub-Family: Papilionaceae, Genus: Arachis and Species: hypogaea. It originated from Latin America and was introduced into West Africa by Portuguese traders in the 16th century (Shankarappa et al., 2003; Olawale et al., 2014). The origin of this crop dates back to 350 BC (Hommones, 1994). Hommones, (1994) also reported that, the first probable domestication of groundnut took place in the valley of the Panama and Paraguay River System in the Grain Chaco area of South America and then move to the North America through slave trade.

1.2 Botanical Description

Reports showed that the cultivated groundnuts are divided into two large botanical groups: „Virginia‟ and „Spanish-Valencia‟, on the basis of branching pattern “alternate” and “sequential”. They stated that these cultivars are group within the two branching pattern considered as subspecies. In the „Virginia‟ group, the main stem does not have reproductive axes. Alternating pairs of vegetative and reproductive axes are borne on the laterals branches and on other branches. In the „Spanish- Valencia‟ group, reproductive branches are borne in a series on successive nodes of the cotyledonary and other lateral branches, on which the first branch is always reproductive. Reproductive branches are also borne directly on the main axis at higher nodes (Prasad et al., 2010).

1.3 Requirements for Groundnut Growth

Groundnut is essentially a tropical plant and requires a long and warm growing season. The favourable climate for groundnut is a well-distributed rainfall of at least 500mm during the crop-growing season, and with abundance of sunshine and relatively warm temperature.

  DOWNLOAD THE FULL PROJECT

EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS

Not The Topic You Are Looking For?



For Quick Help Chat with Us Now!

+234 813 292 6373

+233 55 397 8005


HOW TO GET THE COMPLETE PROJECT ON EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS INSTANTLY

  • Click on the Download Button above.
  • Select any option to get the complete project immediately.
  • Chat with Our Instant Help Desk on +234 813 292 6373 for further assistance.
  • All projects on our website are well researched by professionals with high level of professionalism.

Here's what our amazing customers are saying

Oluchi From Michael Opara University
If you are a student and you have not used iprojectmaster materials, you are missing big time! iprojectmaster is the BEST
Excellent
Joseph M. Yohanna
Thanks a lot, am really grateful and will surely tell my friends about your website.
Excellent
Emmanuel Essential
Kogi state University
I actually took the risk,you know first time stuff But i was suprised i received as requested. I love you guys 🌟 🌟 🌟 🌟
Very Good
Musa From Ahmadu Bello University
Thank you iprojectmaster for saving my life, please keep it up and may God continue to bless you people.
Excellent
Ibrahim Muhammad Muhammad
Usmanu danfodiyo university, sokoto
It's a site that give researcher student's to gain access work,easier,affordable and understandable. I appreciate the iproject master teams for making my project work fast and available .I will surely,recommend this site to my friends.thanks a lot..!
Excellent
MATTHEW NGBEDE
Ahmadu Bello University
I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!
Excellent
Abdulrahman Jibrin
Nti Abaji
Nice one work prompt delivery tanx
Very Good
Merry From BSU
I am now a graduate because of iprojectmaster.com, God Bless you guys for me.
Excellent
Abdulrazak Bello Marsha
Usman Dan fodio University
It was quite a better guide for project and paper presentation purpoting. Many thanks.
Average
Abraham Ogbanje
NATIONAL OPEN UNIVERSITY OF NIGERIA
At first I was afraid.. But I discovered they are legit. I will bring more patronize
Very Good

FREQUENTLY ASKED QUESTIONS

How do I get this complete project on EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS?

Simply click on the Download button above and follow the procedure stated.

I have a fresh topic that is not on your website. How do I go about it?

How fast can I get this complete project on EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS?

Within 15 minutes if you want this exact project topic without adjustment

Is it a complete research project or just materials?

It is a Complete Research Project i.e Chapters 1-5, Abstract, Table of Contents, Full References, Questionnaires / Secondary Data

What if I want to change the case study for EFFECT OF DEFOLIATION ON THE GROWTH AND SEED YIELD OF FOUR GROUNDNUT (ARACHIS HYPOGAEA L.) CULTIVARS, What do i do?

Chat with Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

How will I get my complete project?

Your Complete Project Material will be sent to your Email Address in Ms Word document format

Can I get my Complete Project through WhatsApp?

Yes! We can send your Complete Research Project to your WhatsApp Number

What if my Project Supervisor made some changes to a topic i picked from your website?

Call Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

Do you assist students with Assignment and Project Proposal?

Yes! Call Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

What if i do not have any project topic idea at all?

Smiles! We've Got You Covered. Chat with us on WhatsApp Now to Get Instant Help: +234 813 292 6373

How can i trust this site?

We are well aware of fraudulent activities that have been happening on the internet. It is regrettable, but hopefully declining. However, we wish to reinstate to our esteemed clients that we are genuine and duly registered with the Corporate Affairs Commission as "PRIMEDGE TECHNOLOGY". This site runs on Secure Sockets Layer (SSL), therefore all transactions on this site are HIGHLY secure and safe!