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  1. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences
  2. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84
  3. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84, Issue 3, September 2014
  4. Reproductive Assurance Through Autogamy in Some Annual Weed Species
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Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 87
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 86
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 85
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84, Issue 4, December 2014
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84, Issue 3, September 2014
Biodiversity Information: The Need and Importance of Floral Surveys
First record of Metzgeriinean bryophyte Pantiathallites gondwanensis gen. et sp. nov. in the Glossopteris floral assemblage of late early Permian of India
Soybean Rhizobia in Indian Soils: Populations, Host Specificity and Competitiveness
Problems Associated with Studying Spatial Distribution of Plants Through Herbarium Anthology: A Case Study of Family Berberidaceae in North West Himalaya
Hermaphroditism: A Primitive Sex Form for Improving Plant Architecture, Earliness and Yield Traits in Monoecious Ridge Gourd (Luffa acutangula Roxb.)
Morphological Distinction of Cyanodermatium (Hydrococcaceae) and Radaisia (Hyellaceae) of Chroococcales (Cyanoprokaryota)
The Chronological Advancement of Soil Organic Carbon Sequestration Research: A Review
A Case for Silicon Fertilization to Improve Crop Yields in Tropical Soils
Microbial Biomass Carbon Status in Agro-Ecological Sub Regions of Black Soils in India
Effect of Nitrogen Fertilizer on Grain Yield and Nitrogen Use Efficiency in Corn (Zea mays L.) Hybrids Under Irrigated Conditions
Fertilizer Nitrogen, Phosphorus and Sulphur Prescription for Aromatic Hybrid Rice (Oryza sativa L.) using Targeted Yield Approach
Enhanced Nitrogen Fixing in Sesbania grandiflora by Azospirillum (BPL7) sp. Isolated from Godavari Belt Region, Andhra Pradesh, India
Productivity, Organic Carbon and Residual Soil Fertility of Pigeonpea–Wheat Cropping System Under Varying Tillage and Residue Management
Molecular Cloning and Characterization of the Gene Encoding Heat Shock Protein 70 from the Chicken (Gallus gallus)
Genetic Diversity in Valeriana wallichii DC., a Medicinally Important Threatened Species as Assessed by Random Amplified Polymorphic DNA in Two Himalayan States of India
Genetic Variability, Heritability and Interrelationships in Pole-Type French Bean (Phaseolus vulgaris L.)
DNA Profiling of Ziziphus mauritiana (Lam.) and Butea monosperma (Lam.) Taub. for Lac Cultivation in India
Molecular Markers Assisted Identification of Intraspecific Hybrids in Ziziphus mauritiana
Agronomic Aspects of Zinc Biofortification in Rice (Oryza sativa L.)
Study of Optimum Time Span for Distinguishing Rumex spinosus in Wheat Crop Through Spectral Reflectance Characteristics
Seasonal Dynamics of Surface Micro Phytoplankton Assemblages in an Understudied Tropical Estuarine Station Along the Bhagirathi–Hooghly Estuary, India
Effect of Engineered Nanoparticles of Fe and Zn Oxides on Enzyme Activity and Bacterial Abundance in Soil at Ambient and Elevated Atmospheric CO$_{2}$
A Study on Parameters Optimization for Degradation of Endosulfan by Bacterial Consortia Isolated from Contaminated Soil
Induced Defense in Plants: A Short Overview
Reproductive Assurance Through Autogamy in Some Annual Weed Species
The Berries of Santalum album L. as a New Source of Cyanidin-3-Glucoside and Chemical Profiling during Different Stages of Berry Development
Regeneration Pattern of Tree Species in Forested Landscapes of Himachal Pradesh, Western Himalayan Region, India
Sumoylation May Play an Important Role in Modification of Large Number of Proteins Associated with Heat Stress in Plants
Effect of Boron on the Contents of Chlorophyll, Carotenoid, Phenol and Soluble Leaf Protein in Mung Bean, Vigna radiata (L.) Wilczek
The Combined Effects of Salinity and Foliar Spray of Different Hormones on Some Biological Aspects, Dry Matter Accumulation and Yield in Two Varieties of Indica Rice Differing in Their Level of Salt Tolerance
Effect of Pulsing on Postharvest Longevity of Cut Leaves of Lace Fern/Bridal Fern (Asparagus setaceus syn. Plumosus)
In Vitro Studies in ‘Poshita’ Ashwagandha (Withania somnifera L.): Effect of Gibberellin and Auxins
Exogenous Treatment with Salicylic Acid Alleviating Copper Toxicity in Bean Seedlings
Allelopathic Influence of Some Common Weeds on Wheat (Triticum aestivum L.)
Effect of Nitrogen and Defoliation on Assimilate Redistribution and Grain Yield of Maize (Zea mays L.) Under Subtropical Conditions
Non-Destructive Assessment of Growth Performance of Embryogenic Suspension Culture of Pinus kesiya (Royle ex. Gord.) in Shake-Flask and Self-Designed Bubble Bioreactor and Successful Regeneration of Plantlets from the Culture Systems
An Overview of the Study of Soil Spore Bank of Ferns: Need for Suitable Exploitation in India
In Vitro Conservation of Nine Medicinally and Economically Important Species of Zingiberaceae from Eastern India
Two Mosses New to West Himalayan Bryoflora
Anthoceros subtilis Steph: A Rare Disjunct Species, New to North East India from Brahmaputra Valley
In Vitro Plantlet Regeneration from Alysicarpus monilifer, a Source of Hepatoprotective Drug
Rapid In Vitro Plant Regeneration of Black Gram (Vigna mungo L. Hepper) Var. Sarala, an Important Legume Crop
Ex-Situ Conservation and Selection of Superior Genotypes Through Trait Association Studies in Asparagus racemosus
Asymbiotic In vitro Seed Germination and Seedling Development of Eulophia nuda Lindl., An Endangered Medicinal Orchid
Micropropagules can Profitably Save the Choicest Silk Banana from Extinction
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84, Issue 2, June 2014
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84, Issue 1, March 2014
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 82

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Reproductive Assurance Through Autogamy in Some Annual Weed Species

Content Provider SpringerLink
Author Shivanna, K. R.
Copyright Year 2014
Abstract Weeds have evolved numerous adaptations to establish, survive and spread rapidly in disturbed habitats. Although prolific seed production is recognized as an important adaptation, studies on their pollination ecology, which is the basis of seed production, have remained neglected. One of the adaptations expected in weed species is autogamy which enables them to set seeds even in uncertain pollination environments. This is particularly important for annual weeds as they have only one chance to set seeds in their life and if they miss this chance, population survival is at risk. Pollination ecology and seed set were studied in eight common annual weed species—Achyranthes aspera, Crotalaria pallida, Malvastrum coromondelianum, Melochia corchorifolia, Solanum nigrum, Stachytarpheta indica, Tridax procumbens and Triumfetta rhomboidea. The extent of autogamous self-pollination and seed set were studied in bagged flowers and compared with those which have access to floral visitors. Autogamy was prevalent in all the species leading to high seed set. There was no significant difference in the extent of pollination and seed set between bagged and open-pollinated flowers in any of the species. Floral visitors were recorded only in three of the species. Reproductive assurance through autogamy is an important adaptation in annual weeds which contributes to their success.
Starting Page 681
Ending Page 687
Page Count 7
File Format PDF
ISSN 03698211
Journal Proceedings of the National Academy of Sciences, India Section B: Biological Sciences
Volume Number 84
Issue Number 3
e-ISSN 22501746
Language English
Publisher Springer India
Publisher Date 2014-02-04
Publisher Place India
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Floral visitors Life Sciences Plant Biochemistry Nucleic Acid Chemistry Autogamous self-pollination Behavioural Sciences Reproductive assurance Annual weeds
Content Type Text
Resource Type Article
Subject Environmental Science Agricultural and Biological Sciences
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