Informatics Publishing Limited

Mahantappa Sankanur , N. V. Saresh , S. L. Somashekharaiah , Archana Verma , S. D. Bhat

Abstract

Importance of the Coral reefs and threats being faced by them are discussed in details. Steps have been enumerated to protect the coral eco-systems.

Keywords

Coral reefsl Threats, Conservation and Management

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Mahantappa Sankanur , S. L. Somashekharaiah , L. Venkateim , Basavaraj S. Ganigerand , H. Shivanna

Abstract

Among the twelve different treatments, treatment with poultry manure at 33 g per seedling (T₈) showed significantly higher seedling height, collar diameter, number of leaves, and dry weight of leaf, shoot, ischolar_main and total dry weight at 240 days after planting the values for which were 42.50 cm, 4.92 mm, 18.45, 1.38 g, 0.99 g, 1.86 g and 4.23 g, respectively with absolute growth rate (0.017 g/day), sturdiness quotient (8.62) and Dickson's quality index (0.43) when compared to the initial dry weight ofleaf, shoot, ischolar_main and total initial dry weight 0.01 g, 0.06 g, 0.09 g and 0.16 g, respectively. It was followed by treatment with Phospho bacteria at 5 g per seedling (T₅) which showed seedling growth attributes viz., 41.00 cm seedling height, 3.28 mm collar diameter, 12.51 number of leaves, and dry weight of leaf (0.29 g), shoot (0.83 g), ischolar_main (2.09 g) and total dry weight (3.19 g) at 240 days after planting with 0.013 g/dayof absolute growth rate, 17.70 of sturdiness quotient and 0.18 of Dickson's quality index, when compared to the initial dry weight of leaf, shoot, ischolar_main and total initial dry weight 0.02 g, 0.06 g, 0.08 g and 0.16 g, respectively.

Keywords

Pterocarpus santalinus, Manures, Fertilizers, Jeevamruta and Seedling Growth

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N.V. Saresh , Mahantappa Sankanur , Archana Verma , S.L. Madiwalar , Aalok Yewale

Abstract

The study indicated that, solarization treatment receiving mulching with thin polythene sheet (0.03 mm) recorded significantly higher soil temperature at all stages. Soil temperature recorded in treatments with thin (0.03 mm), 0 medium (0.06 mm) and thick polythene sheet (0.12 mm) was 56.0, 54.4 and 53.7^°C respectively. Soil temperature in primary nursery bed was significantly higher with longer duration of solarization than with short or medium duration 0 54.3, 54.4 and 55.3^°C respectively. Thin (G ) or medium (G ) polythene sheet in combination with longer duration of 1 2 0 solarization (D ) significantly increased the soil temperature at all the intervals of study (57.3^°C).

Keywords

Solarization, Mulching, Polythene Sheet, Primary Nursery

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