Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits
1
Department of Vegetable Science, College of Agriculture, Kerala Agricultural University, Thrissur, Kerala 680656, India
2
Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, 46022 Valencia, Spain
3
Nagano University, 1088 Komaki, Ueda, Nagano 386-0031, Japan
*
Author to whom correspondence should be addressed.
Plants 2020, 9(1), 1; https://doi.org/10.3390/plants9010001
Received: 11 November 2019
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Revised: 9 December 2019
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Accepted: 17 December 2019
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Published: 18 December 2019
(This article belongs to the Special Issue Plants Heterosis)
Chilli pepper is commercially cultivated as a spice and is also used for the extraction of a colouring agent. Here, we performed a diallel genetic study involving five chilli pepper varieties. Parents and their hybrid were evaluated for fifteen morphological and five biochemical traits over two crop seasons under open field conditions. Variation was recorded for all of the studied traits. Similarly, significant values for general combining ability (GCA) and specific combining ability (SCA) variance were obtained for all of the traits. The ratio of σ2 SCA/σ2 GCA indicates that non-additive gene effects were predominant for all the studied traits except for fruits plant−1. Based on SCA effects, cross combinations P2 × P5, and P4 × P5 were determined excellent for flesh thickness, yield components and vitamin C. These hybrids are recommended for multilocation testing to assess their suitability for commercial cultivation. Overall, this work presents useful information regarding the genetics of important morphological and biochemical traits in chilli pepper.
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Keywords:
chilli pepper; combining ability; diallel; heterosis; capsaicin; oleoresin; ascorbic acid; colour
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MDPI and ACS Style
C. S., A.; S, V.; I, S.; Kaushik, P. Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits. Plants 2020, 9, 1. https://doi.org/10.3390/plants9010001
AMA Style
C. S. A, S V, I S, Kaushik P. Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits. Plants. 2020; 9(1):1. https://doi.org/10.3390/plants9010001
Chicago/Turabian StyleC. S., Aiswarya, Vijeth S, Sreelathakumary I, and Prashant Kaushik. 2020. "Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits" Plants 9, no. 1: 1. https://doi.org/10.3390/plants9010001
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