Abstract Detail

Hybrids and Hybridization

Osekita, Oluwatoyin Sunday [1], Ajileye, Oluwabukola Deborah [2].

Intraspecific Hybridization in Tomato (Solanum lycopersicon L.) For Improved Fruit Quality: A strategy for enhanced food security.

Tomato (Solanum lycopersicon L.) is an important vegetable crop grown widely all over the world. It is a tropical day neutral plant and predominantly self- pollinated, but a certain percentage of cross pollination occurs. Considering its importance, there is need to improve on the existing varieties in order to ensure availability of good quality fruits and seed all the year round. A breeding programme on improvement of tomato fruits and seed production were conducted in the cropping seasons of 2017 and 2018 on three genotypes of tomatoes NG/AA/SEP/09/042, Akungba 1 and Akungba 2. A randomized complete block design replicated three times was adopted on seedlings raised in the nursery for 2 – 3 weeks and transplanted at a spacing of 30 cm x 60 cm within and between rows. Morphological and yield traits were measured and all cultural practices such as weeding, thinning, pest and disease control measures were carried out in order to ensure a clean and disease free condition. At flowering stage crosses were made across the three genotypes and successful fruit set were noted till maturity, ripen fruits were plucked and seeds extracted from the berry, air-dried under ambient temperature of 27⁰C to 30⁰C and relative humidity of 60 – 70% for about 5 – 6 days. The air-dried seeds were then stored in a perforated plastic container for good aeration but devoid of insect infestation and kept in a cool, dry place. The F₁ hybrid seed will be planted in the next cropping season for observation on segregation into recombinant and parental types.

1 - Adekunle Ajasin University, Department of Plant Science and Biotechnology, Akungba Akoko, Akungba, Ondo State, Nigeria
2 - Adekunle Ajasin University, Department of Plant Science and Biotechnology, No 4 Ado Cresent, Ijapo Estate, Akungba Akoko, Ondo State, Ondo State, Nigeria

Keywords:
Cross pollination
 recombinant
Segregation
genotypes
improvement.

Presentation Type: Oral Paper
Session: HYHY1, Hybrids and Hybridization
Location: Tucson H/Starr Pass
Date: Wednesday, July 31st, 2019
Time: 10:45 AM
Number: HYHY1009
Abstract ID:173
Candidate for Awards:Margaret Menzel Award