Journal ID : AMA-02-08-2024-13163
[This article belongs to Volume - 55, Issue - 08]
Total View : 444

Title : GROWTH AND VIGOUR ASSESSMENT IN SEEDLINGS OF LESSER KNOWN TREE SPECIES- Mallotus philippinensis (Lam.) Mull. Arg. OWING TO BIOFERTILIZERS

Abstract :

Biofertilizers were used in the present trial to assess the influence on seedling growth, vigour and survivability of Mallotus philippinensis. M. philippinensis is a lesser known tree with numerous commercial benefits. The production of quality planting materials of the tree species in short duration is a genuine problem due to seed dormancy, very slow growth rate and survivability of seedlings in the early stage. For the production of quality seedlings in a shorter period, the present investigation was carried out, which comprised of seven treatments with biofertilizers (applying @ 10 ml plant-1) viz., Control, Azotobacter, Azosprillum, Acetobacter, Pseudomonas, PSB and VAM, laid out in completely randomized design. Among the various biofertilizer treatments, maximum shoot height (21.47 cm), collar diameter (4.91 mm), number of leaves (4.23) and total leaf area per plant (150.20 cm2) were recorded in Pseudomonas, Acetobacter, Azotobacter and Azospirillum respectively. Moreover, PSB recorded at par value for shoot height with Pseudomonas, for collar diameter with Acetobacter and for number of leaves with Azotobacter. Additionally, maximum total fresh weight of plant (5.75 g) and dry weight of plant (2.29 g) were recorded in PSB. In the seedling vigour attributes, the lowest sturdiness quotient of 4.23 was observed in control treatment and the maximum root: shoot ratio of 1.88 was recorded in pseudomonas. The important vigour index, seedling quality index recorded highest of 0.46 with maximum survivability percentage of 94.70 per cent in PSB. Thus PSB @ 10 ml plant-1 treatment was the overall better performer in growth, vigour and survivability of seedlings of lesser known but commercially important tree species M. philippinensis and can be utilised for production of quality seedlings in large scale.

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