SEED PRODUCTION IN CROSS POLLINATED CROPS - PART3

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By: abbas1434 (46 month(s) ago)

No comments except excellent words, I appreciate your efforts in the field of Plant Breeding and genetics, Dr.Ghulam Abbas PhD Scholar, Plant Breeding and Genetics University of Agriculture, Faisalabad, Pakistan (www.uaf.edu.pk) abbas1434@yahoo.com

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Seed Production in Cross Pollinated Crops PRINCIPLES & METHODS A.K. CHHABRA Professor Department of Plant Breeding CCSHAU, Hisar © A.K. Chhabra TOPICS LAST VIEWED PREVIOUS END DISCLAIMER: Copyright of some of the figures used from internet and different web sites is duly acknowledged. The copyright stands with its original developer. The information has been gathered here for educational purpose and not for any kind of commercial purpose.

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Pollination Control Mechanisms © A.K. Chhabra FORCED SELFING DUE TO CLEISTOGAMY SP Cleistogamy Chasmogamy Homogamy Bisexuality CP Unisexual staminate pistillate Dichogamy protandry protogyny Male Sterility Self Incompatibility

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Various Stages of Spike Development & Anthesis in Pearl millet Panicle emergence Protogyny First flush of anthesis Second flush of anthesis Third flush of anthesis Stigma Emergence Anther Dehiscence from staminate florets Anther Dehiscence from perfect florets Boot leaf stage 1 2 3 4 5 6 7 Anthesis completed & grain formation started

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PROTOGYNY © A.K. Chhabra

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MAIZE Monoecious and protandrous

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© A.K. Chhabra

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© A.K. Chhabra

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© A.K. Chhabra Dioecious

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The Plant Male Plant View 2 Male flowers In the male plant flowers are born in clusters and the number of flower varies from 7 to 36 per cluster.

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The Plant Male flowers Male Plant View 5 In the male plant flowers are born in clusters and the number of flower varies from 7 to 36 per cluster.