Screening of tree cotton (Gossypium arboreum) germplasm to grey mildew caused by Ramularia areola
Abstract views: 81 / PDF downloads: 19
Abstract
An experiment was conducted during 1985-89 to evaluate 1 489 germplasm lines of tree cotton (Gossypium arboreum L.) for their reaction to grey mildew caused by Ramularia areola Atkinson. Under natural conditions of disease occurrence, 24 lines were found free of infection. These infection-free lines were tested further by artificial inoculation in screen-house and in field during 3 crop seasons of 1989-92, which revealed the presence of 7 immune and 17 highly resistant lines. The immune lines identified were 'Bangladesh', 'G 135-49' (G. arboreum L. race bengalense Silow), '30805', '30814', '30826', 30838' and '30856' (G. arboreum L. race cernuum Silow). Among 17 highly resistant lines belonging to G. arboreum race bengalense, 7 ('AC 631', 'AC 727 DH', 'AC 727 MH', 'Desi 1', 'G 112', 'H 574' and 'K 53-519') showed desired staple length and 8 (' AC 24', 'AC 631', 'AC 727 DH'. 'AC 727 MH', 'Desi 1', 'G 112', 'Gao-CB 3 NLL' and 'H 574') showed desired fibre fineness, which were comparable with those of variety 'AKH4'.Downloads
Downloads
Issue
Section
License
The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.