Devendra Kumar , Dhruv Kumar Mishra , Balbir Singh , Ved Pal Singh

Abstract

Neem seeds are short lived and require quicker and more uniform drying to maintain viability and vigour. After proper cleaning, seeds were dried in the sun, shade, dryer at 45±1°C and 55±1°C. Seeds dried in shade, reached at 7.2% EMC (equilibrium moisture content) after 168 hours. while seeds dried in dryer at 55±1°C reached at 5% EMC within 40 hours followed by Sun drying (56 hours) and dryer at 45±1°C (144 hours). After reaching EMC, seeds were tested for their viability and vigour under controlled conditions and in nursery too. Seeds were sown in nursery upto 60 days for evaluating the seedling performance in terms of total seedling length, number of leaves, collar diameter, total biomass and vigour index. All seed lots were stored in open containers at ambient room temperature (35±5°C) and tested at various intervals of storage viz. Fresh/0, 60, 90, 105, 120, 158, 180 and 275 days. Shade dried seeds showed higher mean viability period (P₅₀) of 172 days followed by seed dried through drier at 45±1°C (113 days) as compared to sun-dried seeds (40 days). Seeds dried in shade found best followed by dryer at 45±1°C in terms of seed and seedling performance and storability.

Keywords

Neem, Azadirachta indica, Seeds, Drying Methods, Viability, Storability, Seedling
Performance

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Vnod Kumar , H. C. Nagavanl , Devendra Kumar , Ved Pal Singh

Abstract

Calligonum polygonoides is a sand dune plant which helps in soil binding. Prevents erosion and in stabilization of sand dunes. Phog seeds do not need any special pretreatment for good germination and O.5cm depth is sufficient for sowing. Nov. and Dec. is the best period for seed sowing of get good germination. Propagation of the plant both by seed or vegetatively is very easy and simple.&the plant has adjusted so much to nature for its existence which in turn help the nature by avoiding the desert to grow. We should help the nature and plant by growing and conserving the plant, in turn we can enjoy the greenness instead of sand storms in the desert.

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Ved Pal Singh ¹, Devendra Kumar ²

Affiliations
1 Centre for Forestry Research and Human Resource Development (CFRHRD) Poama, Chhindwara, MP
2 Centre for Forestry Research and Human Resource Development (CFRHRD) Poama, Chhindwara, MP, IN

Abstract

Pterocarpus marsupium Roxb. (Bijasal) is an important multipurpose tree species valued for its timber, fuel and fodder. Three experiments were carried out to determine the effect of various seed sizes, time of sowing and pretreatments on seed germination and growth performance in terms of vigour. Higher germination percentage was found during July and August. Larger size seeds > 3.78 mm (T ) (wt. 68.8gm/100 seeds) showed higher seed germination percentage as 3 compared to rest treatments. Root length, shoot length and total dry matter production of seedlings were measured for computing the vigour index. Seeds soaked in cold water for 24h (T ) showed higher germination percentage and 4 significantly higher growth in terms of vigour index. Large sized seed pretreated in cold water for 24h sowed during July and August gave better seed germination and seedlings quality.

Keywords

Seed Germination, Seed Grades and Vigour Index

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Vishwajeet Sharma ¹, Ved Pal Singh ², Falguni Behera ¹

Affiliations
1 Forest Research Institute (Deemed) University, Dehradun (Uttarakhand), IN
2 Forest Research Institute, Dehradun, IN

Abstract

Dalbergia sissoo Roxb. ex DC. ver. Shisham belongs to family Fabaceae is one of the most important commercially valuable timber species. It is best known for its highly valued timber that widely in use as for timber construction, boats, cart wheels, veneer plywood, bent wood, high quality furniture, cabinets, flooring and turnery works. The present paper deals with the effect of insect pests on different pruning regimes 0%, 25%, 50%, and 75% of Dalbergia sissoo and conducted at Dusty Acres Research Farm, Department of Forestry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur during Kharif season of 2012.

Keywords

Dalbergia sissoo, Insect, Pruning, Timber.

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