Studies on Inheritance Pattern of Non Spiny Character in Spiny Brinjal

Research Article

Ann Agric Crop Sci. 2020; 5(2): 1060.

Studies on Inheritance Pattern of Non Spiny Character in Spiny Brinjal

Pandiyan M1*, Savitha BK1, Veeramani A2, Gopikrishnan A2, Sivakumar C1, Krishnaveni A1 and Radhakrishnan V1

1Agricultural College and Research Institute, Tamil Nadu Agricultural University, India

2Agricultural Research Station, Tamil Nadu Agricultural University, India

*Corresponding author: Muthaiyan Pandiyan, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Vazhavachanur, 606753, Tiruvannalmalai District, Tamil Nadu, India

Received: April 24, 2020; Accepted: May 13 2020; Published: May 20, 2020

Abstract

An objective to develop non spiny brinjal without deletion of quality characters of spiny brinjal for consumer’s preference and also avoid hitting of spines to harvesters. Spiny brinjal (VRM-1 Mullukathiri) is a pure line selection from Elavambadi village of Vellore district of Tamil Nadu. Spines are present in the leaf, stem and calyx of the fruit. The crosses were attempted to develop non-spiny brinjal with spiny quality. The both parents of non spiny and spiny are pure for spiny and non spiny respective characters. There is no problem for cross ability. Studied two types of crosses i.e., Spiny x Non-spiny and Non-Spiny x Spiny were made for their inheritance of non-spiny and spiny nature in leaf, stem and fruits in brinjal. The true F1 was tagged in both crosses combination. From this study in both cases spiny plants are observed in F1 generation which indicates spiny is expressed as dominant characters. In both cases spiness, fruit shapes and flower colors shown dominance in respective parents are used as female. The gene expression of 3:1 ratio was recorded for all qualitative traits as mendelian ratio.

Study of dominance of deep violet flower over slight violet, presence or absence of spines on leaves, calyx and stem, monogenic or pleiotropic in gene action; fruit shape and round shape dominant over oval (pear and club shaped) fruit shape; deep violet calyx color dominant over slight violet and fruit color ranging from light purple to dark purple showing quantitative nature of gene expression.

Keywords: Brinjal; Qualitative traits; spines; Flower color; Fruit shapes; Inheritance characters

Introduction

The brinjal is one of the most important vegetable used by the consumers in India. Preference for brinjal consumption is varied based on location. Many brinjal types are available in Tamil Nadu. Within 50 kilometers distance consumption of brinjal preference is completely changed. Spiny brinjal having peculiar habit even in maturity stage we can use for culinary purpose. The area for spiny brinjal cultivation is very high northern Tamil Nadu and also this types fetching high price comparatively with other brinjal at the rate of at least Rs. 5 per kg. Market value also very high in these types. All the spiny brinjal growers happy with spiny brinjal cultivation because continues demand. The drawback for spiny brinjal is always giving trouble to harvesters. To prevent this problem farmers are requested to scientist to eradicate this types without changing of color, taste and qualities. Because of enquiries by the farmers through suitable research was started for developing Non spiny type without changing of characters. The research has been started in 2012 at TNAU, Agricultural Research Station, Virinjipuram, and Vellore and continued to proceed up to 2015 at same research station for inheritance studies for some characters.

Materials and Methods

The experimental materials namely VRM1 Spiny brinjal and non spiny local types 1,2,3 were taken for the research. Non spiny brinjal local types and Spriny brinjal variety VRM1 were raised during Rabi 2012-2013 in a crossing block. The direct and reciprocal crosses were affected following the method suggested by Boling et al. for hybridization.

The crosses were attempted between non spiny with spiny and also spiny with non spiny vice versa (Table 1).