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2012 - 20132
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Subject: Plantation Technology × Start date: 2012 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Provenance Variation Studies on Fruit, Seed and Seedling Traits of Zanthoxylum rhetsa - A Tree under High Exploitation in Central Ghats
    (UAS, Dharwad, 2012) Jyothi B. Patil; H.Shivanna
    The study on “Provenance variation studies on fruit, seed and seedling, traits of Zanthoxylum rhetsa - a tree under high exploitation in Central Western Ghats” was conducted at college of Forestry, Sirsi. The study was laid out by following completely randomized design with six treatments (seed sources) and four replications. The fruit length, fruit width, fruit test weight were 6.09 mm, 4.19 mm and 21.29 g respectively in Sirsi seed source which was found highest. Seed length, seed width and test weight and volume were 2.84 mm, 1.75 mm and 10.40 g, 0.037 mm3 in Sirsi seed source which was found to be superior from rest of the seed sources. However Kumta seed source recorded the least for both fruit and seed parameters. Among the different pre treated seeds, the highest germination percentage was found to be 45% in boiling water for five min with cow dung treatment for three days, followed by only cow dung treatment for two days (42%). There was an increase of 68.64 per cent in mean daily germination due to boiling water for five min with cow dung treatment for three days as compared to control. Maximum germination was recorded in Sirsi seed source (45.29%) and least was noticed in Kumta seed source (26.45 %). At 180 days after germination, maximum seedling height was recorded in Sirsi seed source (37.11 cm) and least was in Kumta seed source (24.88 cm). Similar trend was observed for collar diameter in Sirsi and Kumta seed sources. The shoot length and root length traits were higher in Sirsi seed source (33.45 Cm and 17.01 cm) at 120 days after germination and lowest was in Kumta seed source (22.65cm and 12.96 cm).The highest fresh shoot biomass (9.43 g) was recorded for Sirsi followed by Siddhapur seed source (9.05 g), least was in Kumta seed source (8.18 g). Thus it is inferred that for any further Improvement/ breeding work, Sirsi seed source was found most promising.
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    ThesisItemOpen Access
    Influence of Containers, Potting Mixtures in Nursery Spacing and Nutrient Management in Early Field Establishment of Salacia chinensis
    (UAS, Dharwad, 2013) Somashekar J.; K.S. Channabasappa
    Salacia chinensis is an important medicinal plant found throughout India including Andaman and Nicobar Islands. This plant having a greater importance in modern medicine which leads to commercial cultivation. The over exploitation of this plant in forest which leads to depletion of population in forest. In view of this, an experiment was undertaken during 2011-12. Raising good quality seedlings at nursery stage is a very important aspect for success of any plantation programme. Spacing and integrated nutrient management are the two important factors which influence the growth and productivity of plants. A nursery experiment was conducted at College of Forestry, Sirsi, Uttara Kannada district of Karnataka. Geographically nursery is situated at 140361 N latitude and 750531 E longitude and an altitude of 619 m MSL. Mean annual rainfall is 2657 mm, most of which is received between June to October. Temperature varies from 9.50C to 350 C. The experiment was laid out in factorial completely randomized design (Factorial CRD) with three replications. The present experiment revealed that, root trainers and poly bags did not show significant differences in plant growth of Salacia chinensis. The data revealed that the effect of different potting mixtures had significant effect on plant growth. Maximum plant growth was recorded in 2: 1: 1 with 1 g DAP at all stages of seedling growth followed by 2: 1: 1 with 5 g VAM. At 12 MAT, 2:1:1 with 1 g DAP recorded maximum growth parameters (12.66 cm plant height, 4.02 mm collar diameter, 20.8 number of leaves) fresh and dry weight of leaves, root and stem in gram (9.16 and 1.83), (7.27 and 1.45), (11.24 and 2.70) followed by 2: 1: 1 with 5 g VAM. The field experiment was conducted at Agricultural Research Station, Malagi of Mundgod, Uttara Kannada District of Karnataka. The place is situated at 140381 N latitude and 750001 E longitude at an altitude of 490 m above mean sea level (MSL). The experiment was laid out in split plot design with the spacing 0.5 × 0.5, 0.5 × 1 and 1 × 1 m in main plot and fertilizer levels in subplot. Planting was taken up with one year old Salacia chinensis seedlings. Spacing and nutrient levels recorded significant difference in plant growth among treatments. Wider spacing (1 x 1 m) along with 10 tons FYM + 50:100:50 NPK kg/ha recorded significantly maximum plant growth over other treatments (plant height 43.28 cm, collar diameter 7.27 mm, number of leaves 20.2) followed by 1 x 0.5 m with 10 tons FYM + 50:50:50 NPK kg/ha (plant height 42.08 cm, collar diameter 7.16 mm, number of leaves 20.0). Significantly lower (plant height 21. 96 cm, collar diameter 5.79 mm, number of leaves 17.6) recorded in 0.5 x 0.5 m with control.