Pub Date : 2022-07-30DOI: 10.54207/bsmps1000-2022-pz3o9j
V. Jalander, J. Swamy
The endemic species Vigna hainiana Babu, Gopin. & S.K. Sharma (Fabaceae: Phaseoleae) is reported here for the first time from Nizamabad district for Telangana. Detailed description and photographs are provided to facilitate its easy identification.
{"title":"New distributional record of the endemic plant Vigna hainiana (Fabaceae) from Telangana, India","authors":"V. Jalander, J. Swamy","doi":"10.54207/bsmps1000-2022-pz3o9j","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-pz3o9j","url":null,"abstract":"The endemic species Vigna hainiana Babu, Gopin. & S.K. Sharma (Fabaceae: Phaseoleae) is reported here for the first time from Nizamabad district for Telangana. Detailed description and photographs are provided to facilitate its easy identification.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132713202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-30DOI: 10.54207/bsmps1000-2022-qw2zef
C. Fraser-Jenkins, P. Wangdi
Bhutanese pteridophytes have been compiled into a check-list of 568 taxa (543 species and 25 additional subspecies), based on reidentification of nearly all the world’s herbarium holdings from the Country, studied by the first author. We have also carried out many field-excursions, particularly in west and east Bhutan, collecting and identifying specimens. As a result we have produced a detailed specimen check-list giving full details (Fraser-Jenkins et al., in press 2022). The present list of confirmed taxa makes various additions and corrections to the Bhutan listings in the Annotated Checklist of Indian Pteridophytes (Fraser-Jenkins et al. 2016-2020), detailed in the full checklist. Two new species Diplazium phuntshoi Fraser-Jenk., and Pichisermollodes major Fraser-Jenk. and one new subspecies Dryopteris sparsa subsp. obtusipinnula Fraser-Jenk., are described. Only 4 species are endemic to Bhutan, but are all presumed to be only temporarily so and are expected to be present also in N.E. India, S.E. Tibet, S.W. China or N. Myanmar, though not yet detected there.
第一作者对不丹的蕨类植物进行了研究，根据对该国几乎所有世界植物标本馆的重新鉴定，将不丹的蕨类植物汇编成一份568个分类群(543个种和另外25个亚种)的核对表。我们还进行了许多实地考察，特别是在不丹西部和东部，收集和鉴定标本。因此，我们制作了一份详细的标本检查清单，提供了全部细节(Fraser-Jenkins等人，在2022年出版)。目前确认的分类群清单对《印度蕨类植物注释清单》(Fraser-Jenkins et al. 2016-2020)中的不丹清单进行了各种补充和更正，详细内容见完整清单。文章题目二新种黄花双棱藓。，和pichisermolodes Fraser-Jenk少校。和一新亚种鳞毛蕨亚种。obtusipinnula Fraser-Jenk。，描述。只有4种是不丹特有的，但都被认为只是暂时的，预计也会出现在印度东北部、西藏东南部、中国西南部或缅甸北部，尽管尚未在那里发现。
{"title":"Pteridophytes of Bhutan","authors":"C. Fraser-Jenkins, P. Wangdi","doi":"10.54207/bsmps1000-2022-qw2zef","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-qw2zef","url":null,"abstract":"Bhutanese pteridophytes have been compiled into a check-list of 568 taxa (543 species and 25 additional subspecies), based on reidentification of nearly all the world’s herbarium holdings from the Country, studied by the first author. We have also carried out many field-excursions, particularly in west and east Bhutan, collecting and identifying specimens. As a result we have produced a detailed specimen check-list giving full details (Fraser-Jenkins et al., in press 2022). The present list of confirmed taxa makes various additions and corrections to the Bhutan listings in the Annotated Checklist of Indian Pteridophytes (Fraser-Jenkins et al. 2016-2020), detailed in the full checklist. Two new species Diplazium phuntshoi Fraser-Jenk., and Pichisermollodes major Fraser-Jenk. and one new subspecies Dryopteris sparsa subsp. obtusipinnula Fraser-Jenk., are described. Only 4 species are endemic to Bhutan, but are all presumed to be only temporarily so and are expected to be present also in N.E. India, S.E. Tibet, S.W. China or N. Myanmar, though not yet detected there.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"437 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131921067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-30DOI: 10.54207/bsmps1000-2022-08x864
P. Negi, A. Tapwal, Jawala Prasad, Monika, Anu Sharma
An experiment was conducted to study the influence of seed sources on seed germination and seedling vigour of Pinus gerardiana seeds collected from 23 seed sources during October, 2018 in Kinnaur and Chamba districts of Himachal Pradesh. The seeds were subjected to germination testing to identify the best seed source for raising Pinus gerardiana seedlings in the nursery. Significant differences were observed in germination percent, average seedling length and seedling vigour of seeds collected from different seed sources. The maximum germination of 83.00% was recorded in seeds collected from Jangi seed source followed by 74.00% germination in seeds collected from Purbani, 71.00% germination in seeds collected from Moorang in Kinnaur Forest Division whereas minimum germination of 36.00% germination was recorded in seeds collected from Luj in Pangi Forest Division. Similarly, maximum seedling length of 11.10 cm was recorded in seeds collected from Jangi followed by 10.50 cm in seeds collected from Purbani and 10.21 cm in seeds collected from Moorang in Kinnaur Forest Division whereas minimum seedling length of 7.70 cm was recorded from seeds collected from Luj in Pangi Forest Division. The maximum seedling vigour index of 921 was recorded in seeds collected from Jangi followed by seedling vigour index of 777 from Purbani and seedling vigour index of 724 from Moorang in a decreasing order whereas minimum seedling vigour index of 277 was recorded in seeds collected from Luj in Pangi Forest Division. It is recommended on the basis of present investigation that seeds of Pinus gerardiana should be collected from Jangi seed source in Kinnaur district for raising quality seedlings in the nursery.
{"title":"Influence of seed sources on germination and seedling vigour of Pinus gerardiana","authors":"P. Negi, A. Tapwal, Jawala Prasad, Monika, Anu Sharma","doi":"10.54207/bsmps1000-2022-08x864","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-08x864","url":null,"abstract":"An experiment was conducted to study the influence of seed sources on seed germination and seedling vigour of Pinus gerardiana seeds collected from 23 seed sources during October, 2018 in Kinnaur and Chamba districts of Himachal Pradesh. The seeds were subjected to germination testing to identify the best seed source for raising Pinus gerardiana seedlings in the nursery. Significant differences were observed in germination percent, average seedling length and seedling vigour of seeds collected from different seed sources. The maximum germination of 83.00% was recorded in seeds collected from Jangi seed source followed by 74.00% germination in seeds collected from Purbani, 71.00% germination in seeds collected from Moorang in Kinnaur Forest Division whereas minimum germination of 36.00% germination was recorded in seeds collected from Luj in Pangi Forest Division. Similarly, maximum seedling length of 11.10 cm was recorded in seeds collected from Jangi followed by 10.50 cm in seeds collected from Purbani and 10.21 cm in seeds collected from Moorang in Kinnaur Forest Division whereas minimum seedling length of 7.70 cm was recorded from seeds collected from Luj in Pangi Forest Division. The maximum seedling vigour index of 921 was recorded in seeds collected from Jangi followed by seedling vigour index of 777 from Purbani and seedling vigour index of 724 from Moorang in a decreasing order whereas minimum seedling vigour index of 277 was recorded in seeds collected from Luj in Pangi Forest Division. It is recommended on the basis of present investigation that seeds of Pinus gerardiana should be collected from Jangi seed source in Kinnaur district for raising quality seedlings in the nursery.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"2 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132653376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-30DOI: 10.54207/bsmps1000-2022-08t8l3
C. Fraser-Jenkins
Namdapha National Park in eastern Arunachal Pradesh near the Myanmar border is perhaps the most bio-diverse park in India, being situated at the edge of the region of the centre of diversity of Sino-Himalayan species and also being connected to the S.E. Asian (Malesian) flora through the adjacent mountain ranges of Myanmar. The area has very high rainfall and a great range of altitude (from c. 300 m to 4500 m). Despite increasing human pressure, the Park still contains large areas of species-rich, pristine tropical-type rain-forest and temperate forest, along with secondary forest. It is thus a notable haven for a very great diversity of pteridophytes (ferns and allies, including lycophytes), which form an obvious and often dominant part of the ground vegetation, with tree-ferns (Cyathea) above. However only the lower regions have been explored scientifically, up to c. 500 m altitude. A remarkable nine tenths of the altitude-range of the park remains entirely unexplored and its high-altitude Sino-Himalayan flora, still quite unknown, must be immensely rich, including the pteridophytes. A checklist of pteridophytes of the park is given here as known so far from all relevant herbarium-collections and from the authors’ own collections, altogether 184 taxa, though well over twice that number should be expected if a far-reaching scientific expedition could take place, which has not so far occurred.
{"title":"Pteridophytes of Namdapha National Park, Arunachal Pradesh, N.E. India","authors":"C. Fraser-Jenkins","doi":"10.54207/bsmps1000-2022-08t8l3","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-08t8l3","url":null,"abstract":"Namdapha National Park in eastern Arunachal Pradesh near the Myanmar border is perhaps the most bio-diverse park in India, being situated at the edge of the region of the centre of diversity of Sino-Himalayan species and also being connected to the S.E. Asian (Malesian) flora through the adjacent mountain ranges of Myanmar. The area has very high rainfall and a great range of altitude (from c. 300 m to 4500 m). Despite increasing human pressure, the Park still contains large areas of species-rich, pristine tropical-type rain-forest and temperate forest, along with secondary forest. It is thus a notable haven for a very great diversity of pteridophytes (ferns and allies, including lycophytes), which form an obvious and often dominant part of the ground vegetation, with tree-ferns (Cyathea) above. However only the lower regions have been explored scientifically, up to c. 500 m altitude. A remarkable nine tenths of the altitude-range of the park remains entirely unexplored and its high-altitude Sino-Himalayan flora, still quite unknown, must be immensely rich, including the pteridophytes. A checklist of pteridophytes of the park is given here as known so far from all relevant herbarium-collections and from the authors’ own collections, altogether 184 taxa, though well over twice that number should be expected if a far-reaching scientific expedition could take place, which has not so far occurred.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114275674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-30DOI: 10.54207/bsmps1000-2022-j82y05
Sudheer Kumar Singh
Two new species of liverworts, Telaranea mizoramensis Sushil K. Singh sp. nov. (Lepidoziaceae) and Cylindrocolea mizoramensis Sushil K. Singh sp. nov. (Cephaloziellaceae) are described from Mizoram, Northeast India.
{"title":"Description of two new species of liverworts (Marchantiophyta) from Mizoram, Northeast India","authors":"Sudheer Kumar Singh","doi":"10.54207/bsmps1000-2022-j82y05","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-j82y05","url":null,"abstract":"Two new species of liverworts, Telaranea mizoramensis Sushil K. Singh sp. nov. (Lepidoziaceae) and Cylindrocolea mizoramensis Sushil K. Singh sp. nov. (Cephaloziellaceae) are described from Mizoram, Northeast India.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116331243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-31DOI: 10.54207/bsmps1000-2022-w2a5l7
O. Datta
Fig leaf roller moth, Phycodes radiata is a minor, polyphagous and sporadic pest of the ficus plants in the Moraceae family. The comparative biology of P. radiata was evaluated on four host plants: Ficus benjamina, F. benghalensis, F. glomerata, and F. religiosa. The eggs hatch after an incubation period of 6.80±0.70, 6.82±0.72, 6.80±0.71, and 6.82±0.73 days. The hatching percentages of the eggs were recorded to be highest (95%) on F. religiosa and the lowest (82%) on F. benghalensis. The total larval period was recorded as 19.80±2.91, 19.85±3.0, 19.57±3.37 and 19.36±3.29 days respectively, the longest on F. benghalensis and the shortest on F. religiosa. The male pupal period lasted for 9.80±0.50, 9.80±0.40, 9.80±0.45 and 9.80±0.49 days; and the female pupal period was 9.67±0.79, 9.66±0.74, 9.67±0.78 and 9.67±0.80 days respectively. The male longevity was observed as 5.87±0.33, 5.88±0.32, 5.87±0.35 and 5.88±0.36 days, whereas, the female longevity was recorded to be 7.89±0.49, 7.87±0.48, 7.90±0.52 and 7.89±0.55 days respectively on four host plants.
{"title":"Comparative biology of Phycodes radiata (Lepidoptera: Brachodidae) on four host plants of Moraceae family","authors":"O. Datta","doi":"10.54207/bsmps1000-2022-w2a5l7","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-w2a5l7","url":null,"abstract":"Fig leaf roller moth, Phycodes radiata is a minor, polyphagous and sporadic pest of the ficus plants in the Moraceae family. The comparative biology of P. radiata was evaluated on four host plants: Ficus benjamina, F. benghalensis, F. glomerata, and F. religiosa. The eggs hatch after an incubation period of 6.80±0.70, 6.82±0.72, 6.80±0.71, and 6.82±0.73 days. The hatching percentages of the eggs were recorded to be highest (95%) on F. religiosa and the lowest (82%) on F. benghalensis. The total larval period was recorded as 19.80±2.91, 19.85±3.0, 19.57±3.37 and 19.36±3.29 days respectively, the longest on F. benghalensis and the shortest on F. religiosa. The male pupal period lasted for 9.80±0.50, 9.80±0.40, 9.80±0.45 and 9.80±0.49 days; and the female pupal period was 9.67±0.79, 9.66±0.74, 9.67±0.78 and 9.67±0.80 days respectively. The male longevity was observed as 5.87±0.33, 5.88±0.32, 5.87±0.35 and 5.88±0.36 days, whereas, the female longevity was recorded to be 7.89±0.49, 7.87±0.48, 7.90±0.52 and 7.89±0.55 days respectively on four host plants.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127250721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-31DOI: 10.54207/bsmps1000-2022-h2p99l
A. Maji, K. Karthigeyan
The ambiguity regarding the occurrence of Mucuna monosperma DC. ex Wight in West Bengal, India is resolved based on its recent collection. Detailed description, photo plate and notes on its distribution, habitat and uses are provided.
{"title":"On the occurrence of Mucuna monosperma (Leguminosae) in West Bengal, India","authors":"A. Maji, K. Karthigeyan","doi":"10.54207/bsmps1000-2022-h2p99l","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-h2p99l","url":null,"abstract":"The ambiguity regarding the occurrence of Mucuna monosperma DC. ex Wight in West Bengal, India is resolved based on its recent collection. Detailed description, photo plate and notes on its distribution, habitat and uses are provided.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"23 15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117319470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-31DOI: 10.54207/bsmps1000-2022-l01061
H. Naithani, S. Lepcha
Dendrocalamus sikkimensis, an attractive bamboo known from North-east India, Nepal, China and Bhutan. In the past it has flowered in 1885 from Sikkim; 1897 from Bhutan; 1916, 1917, 1921, 1982 and 1991 from West Bengal; 1887, 1977, 1979, 2003 from Mizoram and 2013 from Meghalaya respectively. Recently it has gregariously flowered in Kalimpong, West Bengal in April 2022 after a lapse of 60-65 years.
{"title":"Note on the flowering of Dendrocalamus sikkimensis from West Bengal, India","authors":"H. Naithani, S. Lepcha","doi":"10.54207/bsmps1000-2022-l01061","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-l01061","url":null,"abstract":"Dendrocalamus sikkimensis, an attractive bamboo known from North-east India, Nepal, China and Bhutan. In the past it has flowered in 1885 from Sikkim; 1897 from Bhutan; 1916, 1917, 1921, 1982 and 1991 from West Bengal; 1887, 1977, 1979, 2003 from Mizoram and 2013 from Meghalaya respectively. Recently it has gregariously flowered in Kalimpong, West Bengal in April 2022 after a lapse of 60-65 years.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132166670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Note on the extended distribution of an endemic species Thrixspermum patkaiensis (Orchidaceae) to Arunachal Pradesh, North East India","authors":"K. Gogoi, K. Chowlu, Veenet Rawat","doi":"10.54207/bsmps1000-2022-cd4sz8","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-cd4sz8","url":null,"abstract":"Thrixspermum patkaiensis, hitherto known as an endemic species of Assam is reported here as an addition to the flora of Arunachal Pradesh.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133961224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-31DOI: 10.54207/bsmps1000-2022-77esml
S. Venkatesan, P. Masilamani, T. Eevera, P. Janaki, S. Sundareswaran, P. Rajkumar
Studies were conducted to find out the influence of accelerated and natural ageing on germination and seedling vigour of fresh teak drupes. The drupes were subjected to the following natural and accelerated ageing treatments viz., control, accelerated ageing for 1 to 15 days at 40oC and 100% RH and naturally ageing (stored at ambient temperature) for 1 to 15 months. The accelerated and natural aged drupes were placed for germination in sand filled earthen pots and kept in sunlight. The experiment was conducted in a Completely Randomized Block Design with ten replications. Germination percentage, number of seedlings/100 drupes, time taken for initial emergence, root length, shoot length, dry matter production and vigour index were recorded 28 days after sowing. The result revealed that the teak drupes subjected to accelerated ageing for 12 days had higher germination (40.6 percent) against 8.2 percent in control and showed an increasing trend with increased period of accelerated ageing (though not very consistently) up to 12 days and thereafter germination was reduced. Whereas in natural ageing treatment, drupes aged 15 months recorded highest germination of 29.2 percent. In natural storage, months after months storage drupes germination was increased. From this study, it could be concluded that instead of storing the drupes over a period of time to natural release of dormancy, 12 days of accelerated ageing enhanced the germination and seedling vigour of teak drupes.
{"title":"Effect of ageing on germination and seedling vigour of teak (Tectona grandis) drupes","authors":"S. Venkatesan, P. Masilamani, T. Eevera, P. Janaki, S. Sundareswaran, P. Rajkumar","doi":"10.54207/bsmps1000-2022-77esml","DOIUrl":"https://doi.org/10.54207/bsmps1000-2022-77esml","url":null,"abstract":"Studies were conducted to find out the influence of accelerated and natural ageing on germination and seedling vigour of fresh teak drupes. The drupes were subjected to the following natural and accelerated ageing treatments viz., control, accelerated ageing for 1 to 15 days at 40oC and 100% RH and naturally ageing (stored at ambient temperature) for 1 to 15 months. The accelerated and natural aged drupes were placed for germination in sand filled earthen pots and kept in sunlight. The experiment was conducted in a Completely Randomized Block Design with ten replications. Germination percentage, number of seedlings/100 drupes, time taken for initial emergence, root length, shoot length, dry matter production and vigour index were recorded 28 days after sowing. The result revealed that the teak drupes subjected to accelerated ageing for 12 days had higher germination (40.6 percent) against 8.2 percent in control and showed an increasing trend with increased period of accelerated ageing (though not very consistently) up to 12 days and thereafter germination was reduced. Whereas in natural ageing treatment, drupes aged 15 months recorded highest germination of 29.2 percent. In natural storage, months after months storage drupes germination was increased. From this study, it could be concluded that instead of storing the drupes over a period of time to natural release of dormancy, 12 days of accelerated ageing enhanced the germination and seedling vigour of teak drupes.","PeriodicalId":142181,"journal":{"name":"Indian Journal of Forestry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126220877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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