Title: Pollen production and depositional behaviour of teak (Tectona grandis Linn. F.) and sal (Shorea robusta Gaertn. F.) in tropical deciduous forests of Madhya Pradesh, India: An overview
Abstract: Teak (Tectona grandis Linn. F.) of the family Verbenaceae and Sal (Shorea robusta Gaertn. F.) of Dipterocarpaceae, are dominating as well as important constituents of tropical deciduous forests of India and Madhya Pradesh, constituting about 24–26% of the total forest flora of the country. These two taxa are high pollen producers, but their pollen grains are retrieved in lesser frequencies in the sediments (surface samples, moss cushions/polsters, samples of sediment profiles/cores). This peculiar behaviour in the representation of their pollen grains could be attributed to poor pollen preservation in the sediments as well as low dispersal efficiency. However, microbial as well as chemical degradation of their pollen in the sediments cannot be ruled out. The number of stamens, flowers, inflorescences on a plant, anther size, pollen grain size, and types and nature of pollination are also related with the abundance of pollen. Genotypes in association with the variations in environmental factors could also govern the pollen production of a particular taxon/variety. In addition to knowing the pollen productivity of the taxa, assessing the representation of the taxa in extant vegetation is helpful in establishing the modern pollen/vegetation relationships which serve as modern analogues for the appropriate explanation of fossil pollen diagrams.
Publication Year: 2013
Publication Date: 2013-08-15
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 24
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot