Now customize the name of a clipboard to store your clips. Emasculation is performed by plant breeders in bisexual flowers to obtain the desired variety of a plant by crossing a particular plant with the desired pollen grain. 1 Genital modification and mutilation. Emasculation should be over well ahead of the time of anthesis. }, author={David K.A. Inagaki (8) also promoted the method of pre-anthesis pollination of wheat spikes with maize pollen for haploid production. Step 1. L24: Emasculation and bagging techniques. After the emasculation, flowers are covered with a paper bag until pollination (Basra, 1999). 3-4. Although hand emasculation and pollination is being utilized in tomato and brinjal but due to more number of seeds per fruit and less seed rate per unit area makes the hybrid seed production in these crops a viable preposition. The forceps must be sterilized by dipping in rectified spirit. ASST PROF. PLANT BREEDING AND GENETICS MAHANTA Prof 46c/14 Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Emasculation is done during early morning between 6 and 8 AM in spikelets, due to open on the same day. Presentation on sexual reproduction, classification and significance in plant... No public clipboards found for this slide. IN CEREALS If you continue browsing the site, you agree to the use of cookies on this website. The less number of petals, the sooner you emasculate. So… With only 5 petals covering the stigma, you will emasculate at this stage. SUGARCANE (Saccharum officinarum) (2n = 80) Cross pollination is the rule in sugarcane. Transcription. Tomatoes … emasculation techniques like hand emasculation with cut and intact glumes, ... where crosses without emasculation were successful if pollination was performed 1-2 day(s) before anthesis. Crossing techniques in rice differ based on the method of emasculation. List of Materials Needed. PBG325 Emasculation should be over well ahead of the time of anthesis. Background Two crossing techniques for hybridization of chickpea have been reported and include pollination after emasculation and pollination without emasculation. Emasculation is done before the anthers are mature and the stigma has become receptive to minimise accidental self-pollination. In plants with relatively large flowers, such as tomato or brinjal, the corolla is forcibly opened just prior to anthesis, the anthers are plucked with a forceps and thrown-off. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. @inproceedings{Barnes1970EmasculationAC, title={Emasculation and cross-pollination techniques for Tephrosia vogelii. Emasculation is necessarily followed by controlled pollination. Assis et al. Emasculation and Pollination Techniques. Presentation on Emasculation is the removal of both the penis and the testicles, the external male sex organs.It differs from castration, which is the removal of the testicles only, although the terms are sometimes used interchangeably. The success rate using this technique averaged 60% with an average of six seeds per pod per successful cross. Dortmund is a single flower, meaning it has only 5 petals. There are two techniques known to perform hybridization.One is emasculation and another is somatic cell hybridization.There is no such term known as somatic emasculation. Once the emasculation is finished, a glassine cross bag is immediately placed over the panicle with the female label on the bag along with the date. Controlled pollination - emasculation, tagging and bagging. Pollination can be of two types: Cross-pollination; Self-pollination; For successful pollination to occur, pollen and stigma should be compatible. The exact technique of emasculation varies from plant to plant depending upon the structure of the flower. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. You can change your ad preferences anytime. Emasculation is necessarily followed by controlled pollination. Several techniques have been developed for emasculation of small size flowers. Being an under-utilized crop, it has not received all the attention as received for other pulses, hence an investigation was carried out at University of Agricultural Sciences Bengaluru in kharif season of 2015 for the first time in India to study to standardize the time of emasculation and pollination of different varieties and mutants of variety SB-42. 2. Emasculation is the removal of stamens or anthers or killing the pollen of a flower without the female reproductive organ is known as emasculation. Emasculation should be over well ahead of the time of anthesis. Back cross method and various modified methods. In bisexual flowers, emasculation is essential to prevent self-pollination. TOPIC-HYBRIDIZATIONTECHNIQUESOFPULSES Plant breeding and genetics. Emasculation is performed by plant breeders in bisexual flowers to obtain the desired variety of a plant by crossing a particular plant with the desired pollen grain. Pollination is the process of reproduction in plants in which plants transfer pollen grains from anther to stigma. develops their own favorite techniques over time. Younger flower buds should be pollinated 1-2 days after emasculation to ensure fruit set. Looks like you’ve clipped this slide to already. If you continue browsing the site, you agree to the use of cookies on this website. Emasculation is done during early morning between 6 and 8 AM in spikelets, due to open on the same day. Incompatibility may lead to rejection of pollen grains. Sugarcane. For example, eucalyptus flowers are emasculated by clipping of anthers, but due to the small size of the flower this becomes very labor intensive (Assis et al., 2005). SUBMITTED TO PRESENTED BY- Different emasculation techniques like hand emasculation with cut and intact glumes, hot water emasculation and no emasculation were compared. Pulses. Mutations & artificial induction of mutations, Presentation on Vertifolia effect and Boom-bust cycle, Presentation on types of molecular markers and its used in plant breeding, Presentation on Synthetic and Composite varieties, Presentation on Single seed descent (SSD) method. Dr.Kaushik kumar panigrahi Pritiparna sahoo 1. This ensures that the flower is pollinated by pollen grains obtained from desirable varieties only. See our Privacy Policy and User Agreement for details. Emasculation is generally done in the evening, between 4 and 6 p.m., one day before the anthers are expected to dehisce or mature and the stigma is likely to become fully receptive. Clipping is a handy way to collect important slides you want to go back to later. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. STUDIES ON EMASCULATION AND POLLINATION TIME IN HYBRID SEED PRODUCTION OF OKRA (ABELMOSCHUS ESCULANTUS L. MOENCH). Barnes}, year={1970} } David K.A. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Looks like you’ve clipped this slide to already. Crossing techniques in rice differ based on the method of emasculation. appropriate time for emasculation and pollination in order to achieve a successful cross to develop hybrids with high yield and other economically important traits. Plants can be placed back into the greenhouse awaiting pollination. Incompatibility and male sterility and their utilisation in crop improvement. Presentation on sexual reproduction, classification and significance in plant... No public clipboards found for this slide. Barnes; Published 1970; Biology; T. vogelii was observed to be primarily a self-pollinated species, but one that requires an insect to trip … Methods of breeding – introduction and acclimatisation. See our User Agreement and Privacy Policy. Floral Biology, Emasculation and pollination techniques in Pigeon Pea This video describes how to do the emasculation and pollination in rice for crossing. Classification of plants, Botanical description, Floral biology, Emasculation and Pollination techniques in cereals, millets, pulses, oil seeds, fibers, plantation crops etc. Contents . Aims and objectives of Plant Breeding; Modes of reproduction, Sexual, Asexual, Apomixis and their classification, significance in plant breeding. 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