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Hybridization in Litchi (2018-2019)

M. J. RAHMAN
Fruit Research Farm of HRC, BARI, Gazipur

M. A. ISLAM
Fruit Research Farm of HRC, BARI, Gazipur

M. M. KHATUN
Fruit Research Farm of HRC, BARI, Gazipur

M. Z. RAHMAN
Fruit Research Farm of HRC, BARI, Gazipur

Abstract/ Executive Summary:

Hybridization in litchi was carried out at the Fruit Research Farm of Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the flowering season of 2019 to incorporate some important characters like earliness, lateness, colour, regular heavy bearing habit in the desired variety or cultivar. Cross combinations for hybridization were: Kathali x BARI Lichu-2, Kadmi x BARI Lichu-4, and Kathali x BARI Lichu-4. Initial fruit set was found 40, 35, 64 in Kathali x BARI Lichu-2, Kadmi x BARI Lichu-4 and Kathali x BARI Lichu-4 cross combination and finally number of fruits was harvested 0, 0, 30 respectively. From the cross combinations Kathali x BARI Lichu-2 and Kadmi x BARI Lichu-4, the initial fruit set was recorded to be 40, 35 and unfortunately all the fruits dropped at the marble stage and finally no fruit was harvested. But from the cross between Kathali x BARI Lichu-4, 30 fruits were harvested and 19 seedling have been raised which will be planted in the main field.

Keywords: Late litchi, Early litchi, Litchi, Litchi variety, Litchi cultivar,

Location: The Fruit Research Farm of Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

Start Date: 00-00-2018

End Date: 00-00-2019

Program Area: Crop-Soil-Water Management

Commodity: Litchi

Objectives:

To incorporate the desirable characters in the late and early litchi variety or cultivar.

Methodology:

Hybridization among the selected varieties and cultivars was done in the flowering season during the month of March 2019. Development of early, late and high yielding litchi variety is very much needed to extend the harvesting period of litchi. BARI Litchu-1 is the early, regular and high yielding variety but the seed is very large compared to other varieties and cultivars. The cultivar Kathali is late and harvested in the last week of June. But fruit yield of Kathali is low with alternate bearing habit. BARI Lichu-4 is the regular bearer, high yielding and is harvested in the mid-season. Early Bedana is a cultivar with more aril percentage with small seeds and it is also known as Early Seedless. So, with the view in mind the experiment “hybridization in litchi” is undertaken to incorporate the desirable characters in the late and early litchi variety or cultivar. Cross combinations for hybridization were: Kathali x BARI Lichu-2, Kadmi x BARI Lichu-4, and Kathali x BARI Lichu-4. Initial fruit set was found 40, 35, 64 in Kathali x BARI Lichu-2, Kadmi x BARI Lichu-4 and Kathali x BARI Lichu-4 cross combination and finally number of fruits was harvested 0, 0, 30 respectively. From the cross combinations Kathali x BARI Lichu-2 and Kadmi x BARI Lichu-4, the initial fruit set was recorded to be 40, 35 and unfortunately all the fruits dropped at the marble stage and finally no fruit was harvested. But from the cross between Kathali x BARI Lichu-4, 30 fruits were harvested and 19 seedling have been raised which will be planted in the main field.

Source of Information: Annual Research Report 2018-2019, Fruit Research Farm of HRC, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In this year, number of complete flowers of litchi was medium. As a result, per cent fruit set was good. In the next year, huge number of female flowers of Kathali will be pollinated in Joydebpur and Debiganj to have more fruits. In 2018, 29 seedlings were raised from the cross combinations of Bombai x Kathali, Bombai x BARI Lichu-3, Bombai x BARI Lichu-4, Kathali x BARI Lichu-2, Kathali x Bombai and Kathali x BARI Lichu-4. The seedlings planted in the field are growing well.

Knowledge Management: Report/Proceedings