Abstract
This present investigation was carried out at the Fruits Research Farm, College of Horticulture and Forestry Jhalarapatan, Jhalawar during the year 2010. In this experiment, freshly extracted acid lime seeds were sown into different media with or with out Azotobacter to study their effect on growth and development acid lime seedlings. The results indicated that the medium combination soil + sand + vermicompost + vermiculite + cocopeat (1:1:1:1:1) with Azotobacter had given significantly better result among different combinations. Under this treatment, the height of seedling (13.75 cm), number of leaves per seedling (22.46), diameter of stem (3.35 mm), fresh weight (2.77 g) and dry weight of seedling (1.18 g) were recorded significantly superior over other treatments used. Further it was also found superior with relation to length of longest tap root (19.76 cm), diameter of tap root (2.95 mm), number of secondary roots (40.66), root/shoot ratio (2.57), nitrogen content in leaf (1.86%), chlorophyll content in leaf (5.44 mg/g) and leaf area of seedlings (1.43 cm2). Key words: Azotobater, media, acid lime seedling, vermicompost.
Highlights
Acid lime is an important sub-tropical fruit crop of the world
This study was conducted to see the effect of different media combination with or without Azotobacter on growth and development of acid
The maximum height of seedling (13.75 cm), number of leaves per seedling (22.46), diameter of stem (3.35 mm), leaf area (1.43 cm2), fresh weight of seedling (2.77 g) and dry weight of seedling (1.18 g), length of longest tap root (19.73 cm), diameter of tap root (2.95 mm), number of secondary roots (40.66) and root/shoot ratio (2.57), maximum total chlorophyll content in leaf (5.44 mg/g) and nitrogen content in leaf (1.86%) were observed at treatment com-bination (soil + sand + vermicompost + vermiculite + cocopeat (1:1:1:1:1) with Azotobacter), whereas, the minimum were observed at control
Summary
Acid lime is an important sub-tropical fruit crop of the world. It is native of India and South-Eastern China. The trees medium sized, hardy and semi-vigorous, growth upright with an irregular and loose crown, foliage not dense, light green, thorns numerous, fruit round and oblong, greenish yellow in colour and juice is highly acidic and its seeds are highly polyembryonic in nature. It is still commercially propagated by seed. As a soil conditioner, exfoliated vermiculite can improve the aeration of “sticky” soils (containing clay) and the water-holding characteristics of sandy soils This allows for easier watering and reduces the likelihood of compaction, cracking and
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