Innovative approaches for the production of certified quality planting materials in Khasi Mandarin (Citrus reticulata Blanco)
2023
Rymbai, Heiplanmi | Verma, V.K. | Talang, H.D. | Devi, M.B. | ., Vanlalruati | Hazarika, S.
Citrus reticulata is one of the most important commercial fruit crops in north-eastern India. The fruits are of premium quality with a unique taste due to the favorable agro-ecological conditions of the region. The demand for citrus fruits is increasing, providing enormous potential for future growth. The availability of certified citrus quality planting materials (CQPM) is the most strategic means to meet the desired growth and demand. Presently, there is a shortage of certified CQPM. Moreover, the citrus propagules are vulnerable to several pathogens, particularly viruses, viroid-like, and systemic bacteria, which are both graft- and vectortransmissible. Mechanisms are needed for an effective regulatory framework through accreditation and certification of mother stocks in the production of a certified CQPM. In this paper, a standard of procedures (SOPs) for the production of certified CQPM is discussed thoroughly. The major steps in the production of certified CPQM are: i. selection and identification of plus plants on the basis of two major criteria, i.e., horticultural traits and virus-free source plants; ii maintenance of certified clean foundation stocks (Block 1); iii. multiplication of stock (Block 1); iv. labelling of certified CQPM with a unique bar or QR code for distribution. Periodic monitoring and maintaining the traceability records of a chain-of-custody of certified CQPM. Therefore, the strict adoption of a protocol will help in the production of the highest horticulturally superior plants and pathogen-free for the sustainable performance of citrus orchards in terms of tree longevity, fruit yield, and quality.
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