TAILIEUCHUNG - Floral biology of CMS lines in chilli

Cytoplasmic Male sterility (CMS) is increasingly utilized for hybrid seed production of chilli (Capsicum annuum L.). Eight CMS and eight maintainer lines were studied for different morphological characters and pollen sterility. The CMS lines viz., AVPP0711S, AVPP0709S, AVPP0710S, AVPP0309S and AVPP0310S were found to be most sterile. It has been concluded that wide range of genetic variability existed for the different floral biological and morphological characters which could be utilized for systematic exploration in chilli improvement programme through hybridization. Improvement programme would greatly benefit from the knowledge of floral biology gained during the present investigation. | 2019 8 6 655-661 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 06 2019 Journal homepage http Original Research Article https Floral Biology of CMS Lines in Chilli M. Vinodhini . Dalvi . Desai . Bhave and . Mahadik Department of Agril. Botany College of Agriculture Dapoli Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth Dapoli- 415712 . India Corresponding author ABSTRACT Keywords Chilli CMS Floral biology Variability Article Info Accepted 07 May 2019 Available Online 10 June 2019 Cytoplasmic Male sterility CMS is increasingly utilized for hybrid seed production of chilli Capsicum annuum L. . Eight CMS and eight maintainer lines were studied for different morphological characters and pollen sterility. The CMS lines viz. AVPP0711S AVPP0709S AVPP0710S AVPP0309S and AVPP0310S were found to be most sterile. It has been concluded that wide range of genetic variability existed for the different floral biological and morphological characters which could be utilized for systematic exploration in chilli improvement programme through hybridization. Improvement programme would greatly benefit from the knowledge of floral biology gained during the present investigation. Introduction Chilli Capsicum annuum L. 2n 24 is considered as one of the most important commercial spice crop. The knowledge of floral biology is a pre-requisite for embarking upon a crop breeding and hybridization programme. Chilli Capsicum annuum L. is one of the crops where time of anthesis and dehiscence pollen viability and germination and stigma receptivity changes over different locations Kalloo 1994 . Moreover in this crop normally fruits are not formed from all the flowers produced. We can increase our yield by higher fruit setting with the knowledge of exact floral biology and seasonal effects. Male sterility is extensively utilized in .

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