K. Palanisamy , K. Gireesan , V. Nagarajan , Maheshwar Hegde

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Maheshwar Hegde , V. Mohan , P. Manokaran , K. Palanisamy

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K. Palanisamy , Maheshwar Hegde , K. Gireesan , A. Dural

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Clonal technology for mass propagating the high yielding Neem (Azadirachta indica A. Juss) trees has been standardized for the first time. A clone bank ofNeem has been established with 60 clones from different parts of Tamil Nadu. The juvenile cuttings collected from the selected clones in the clone bank gave 77 to 100% ischolar_maining throughout the year indicating that hedging induced juvenility in mature tissues. Season does not have a major role on ischolar_maining in juvenile cuttings and superior Neem trees can be clonally multiplied throughout the year. The clonal propagules showed early flowering and fruiting suggesting the possible reduction in juvenile phase of the tree and accelerating the breeding programme. A clonal seed orchard of Neem with 17 clones has been established at Sadivayal , Coimbatore for quality seed production.

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Maheshwar Hegde , S. Sekaran , K. Sivabalakrishnan , B. G. Singh K. , Siddappa

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A 10 hectare Artocarpus hirsuta plantation (1959) at Palode in Thiruvananthapuram Division in Kerala was selected for Seed Production Area (SPA) through sample plot analysis and converted into SPA after culling inferior trees. Ranking of trees was done using point grade method. To overcome soil fertility gradient in the stand blocks were made and enumeration , scoring and ranking was done separately for each block. This is the first report of establishing SPA in this species. This SPA can be used as seed source for future planting and also can be maintained as unique ex-situ conservation stand.

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R. Sivalingam , M. Smitha , Maheshwar Hegde , A. Karthikeyan , K. Palanisamy

Abstract

Response of Terminalia chebula Retz. To application with three different Biofertilizers like Azospirillum, phospobacteria and vesicular arbuscular mycorrhizal (VAM) and four different Biofertilizers combinations like Azospirillum with Phospobacteria, Azospirillum with VAM Phospobacteria with VAM and Azospirillum with Phospobacteria and VAM was studied under nursery condition. The plants were assessed for increment in height, stem girth, collar diameter and number of leaves at 30, and 60 days of treatment. The treatment with combination of Azospirillum 5g + Phospobacteria 5g to polythene bags (22 × 15 cm) containing soil, sand and FYM (2:1:1) showed higher growth in height, stem girth and ischolar_main collar diameter. Seedling treated with VAM also had greater shoot and leaf biomass. The use of Biofertilizers such as Azospirillum, Phospobacteria and Vesicular Arbuscular Mycorrhizal fungi (VAM) on Terminalia chebula to solve the problem of slow growth of seedlings is discussed.

Keywords

Terminalia chebula, Biofertilizers, Nursery, Vesicular Arbuscular Mycorrhiza, Phospobacteria

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