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Sclerotium and grains Black & White Stock Photos
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 4B ramifies chiefly in the upper part of the bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-diseases-of-crops-and-their-remedies-a-handbook-of-economic-biology-for-farmers-and-students-plant-diseases-root-crops-4b-ramifies-chiefly-in-the-upper-part-of-the-bulb-causing-decay-among-this-mycelium-are-numbers-of-black-grains-the-sclerotia-or-masses-of-mycelia-in-a-resting-state-each-sclerotium-germinates-by-throwing-out-hyphse-which-ultimately-give-rise-at-their-ends-to-sporangia-containing-oval-sporidia-spores-the-sporangia-when-ripe-burst-in-the-air-and-the-spores-are-wafted-about-by-air-currents-causing-destruction-to-crops-of-onions-the-spores-ger-fig-18-image216449750.htmlRMPG43T6–. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 4B ramifies chiefly in the upper part of the bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18.
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 45 ramifies chiefly in the upper part of tte bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-diseases-of-crops-and-their-remedies-a-handbook-of-economic-biology-for-farmers-and-students-plant-diseases-root-crops-45-ramifies-chiefly-in-the-upper-part-of-tte-bulb-causing-decay-among-this-mycelium-are-numbers-of-black-grains-the-sclerotia-or-masses-of-mycelia-in-a-resting-state-each-sclerotium-germinates-by-throwing-out-hyphse-which-ultimately-give-rise-at-their-ends-to-sporangia-containing-oval-sporidia-spores-the-sporangia-when-ripe-burst-in-the-air-and-the-spores-are-wafted-about-by-air-currents-causing-destruction-to-crops-of-onions-the-spores-ger-fig-18-image232097122.htmlRMRDGX6X–. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 45 ramifies chiefly in the upper part of tte bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18.
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 4B ramifies chiefly in the upper part of the bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-diseases-of-crops-and-their-remedies-a-handbook-of-economic-biology-for-farmers-and-students-plant-diseases-root-crops-4b-ramifies-chiefly-in-the-upper-part-of-the-bulb-causing-decay-among-this-mycelium-are-numbers-of-black-grains-the-sclerotia-or-masses-of-mycelia-in-a-resting-state-each-sclerotium-germinates-by-throwing-out-hyphse-which-ultimately-give-rise-at-their-ends-to-sporangia-containing-oval-sporidia-spores-the-sporangia-when-ripe-burst-in-the-air-and-the-spores-are-wafted-about-by-air-currents-causing-destruction-to-crops-of-onions-the-spores-ger-fig-18-image232032363.htmlRMRDDYJ3–. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. ROOT CROPS. 4B ramifies chiefly in the upper part of the bulb, causing decay. Among this mycelium are numbers of black grains —the sclerotia, or masses of mycelia in a resting state. Each sclerotium germinates by throwing out hyphse which ultimately give rise (at their ends) to sporangia containing oval sporidia (spores). The sporangia, when ripe, burst in the air, and the spores are wafted about by air currents, causing destruction to crops of onions. The spores ger-. Fig. 18.
. Nature and development of plants. Botany. Fig. 145. Fig. 146. Fig. 145. Head of rye infested by the parasite, Claviceps, which has transformed several of the grains into black masses of mycelium known as sclerotia. Fig. 146. Various phases in the life history of Claviceps: A, a young grain or pistil.infested with the parasite. B, enlarged view of the mycelium as it appears on the surface of the pistil, showing the formation of numerous spores. C, the hyphae of a sclerotium growing out and forming several purplish stalks, each capped with knob-like clusters of ascocarps. D, en- larged Section Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/nature-and-development-of-plants-botany-fig-145-fig-146-fig-145-head-of-rye-infested-by-the-parasite-claviceps-which-has-transformed-several-of-the-grains-into-black-masses-of-mycelium-known-as-sclerotia-fig-146-various-phases-in-the-life-history-of-claviceps-a-a-young-grain-or-pistilinfested-with-the-parasite-b-enlarged-view-of-the-mycelium-as-it-appears-on-the-surface-of-the-pistil-showing-the-formation-of-numerous-spores-c-the-hyphae-of-a-sclerotium-growing-out-and-forming-several-purplish-stalks-each-capped-with-knob-like-clusters-of-ascocarps-d-en-larged-section-image232286679.htmlRMRDWG0R–. Nature and development of plants. Botany. Fig. 145. Fig. 146. Fig. 145. Head of rye infested by the parasite, Claviceps, which has transformed several of the grains into black masses of mycelium known as sclerotia. Fig. 146. Various phases in the life history of Claviceps: A, a young grain or pistil.infested with the parasite. B, enlarged view of the mycelium as it appears on the surface of the pistil, showing the formation of numerous spores. C, the hyphae of a sclerotium growing out and forming several purplish stalks, each capped with knob-like clusters of ascocarps. D, en- larged Section
. Nature and development of plants. Botany. D ., Fig. 145. Fig. 146. Fig. 145. Head of rye infested by the parasite, Claviceps, which has transformed several of the grains into black masses of mycelium known as sclerotia. Fig. 146. Various phases in the life history of Claviceps: A, a young grain or pistil infested with the parasite. B, enlarged view of the mycelium as it appears on the surface of the pistil, showing the formation of numerous spores. C, the hyphae of a sclerotium growing out and forming several purplish stalks, each capped with knob-like clusters of ascocarps. D, en- larged se Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/nature-and-development-of-plants-botany-d-fig-145-fig-146-fig-145-head-of-rye-infested-by-the-parasite-claviceps-which-has-transformed-several-of-the-grains-into-black-masses-of-mycelium-known-as-sclerotia-fig-146-various-phases-in-the-life-history-of-claviceps-a-a-young-grain-or-pistil-infested-with-the-parasite-b-enlarged-view-of-the-mycelium-as-it-appears-on-the-surface-of-the-pistil-showing-the-formation-of-numerous-spores-c-the-hyphae-of-a-sclerotium-growing-out-and-forming-several-purplish-stalks-each-capped-with-knob-like-clusters-of-ascocarps-d-en-larged-se-image232380042.htmlRMRE1R36–. Nature and development of plants. Botany. D ., Fig. 145. Fig. 146. Fig. 145. Head of rye infested by the parasite, Claviceps, which has transformed several of the grains into black masses of mycelium known as sclerotia. Fig. 146. Various phases in the life history of Claviceps: A, a young grain or pistil infested with the parasite. B, enlarged view of the mycelium as it appears on the surface of the pistil, showing the formation of numerous spores. C, the hyphae of a sclerotium growing out and forming several purplish stalks, each capped with knob-like clusters of ascocarps. D, en- larged se
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