chrysanthemum chrysanthemum diseases different types of chrysanthemums

Chrysanthemums, sometimes called mums or chrysanths, are flowering plant life of the genus Chrysanthemum in the family Asteraceae. They are native to Asia and northeastern Europe. Most species originate from East Asia and the center of diversity is in China. There are countless horticultural varieties and cultivars. The name "chrysanthemum" is derived from the Ancient Ancient greek language:?????? chrysos (gold) and Old Greek:??????? anthemon (flower).

Taxonomy

The genus once included more species, but was split several decades ago into several genera, putting the economically important florist's chrysanthemums in the genus Dendranthema. The naming of the genera has been good, but a ruling of the International Botanical The legislature in 1999 changed the defining species of the genus to Chrysanthemum indicum, restoring the florist's chrysanthemums to the genus Chrysanthemum.The other species previously contained in the narrow view of the genus Chrysanthemum are now utilized in the genus Glebionis. The other genera separate from Chrysanthemum include Argyranthemum, Leucanthemopsis, Leucanthemum, Rhodanthemum, and Tanacetum.

Description

Wild Chrysanthemum taxa are herbaceous perennial plants or subshrubs. They have alternately arranged leaves divided into leaflets with toothed or occasionally smooth edges. The chemical substance inflorescence is an array of several flower minds, or sometimes a solo head. The head has a base covered in layers of phyllaries. The simple row of beam florets are white, orange or red; many horticultural specimens have been bred to bear many lanes of ray florets in a great variety of colors. The disc florets of wild taxa are yellowish. The fruit is a ribbed achene. Chrysanthemums, also known as 'mums', are one of the nicest varieties of perennials that start blooming early in the fall. This is also known as favorite flower for the month of November.

Modern grown chrysanthemums are showier than their wild relatives. The flower heads occur in various forms, and is daisy-like or decorative, like aigrette or buttons. This genus contains many hybrids and thousands of cultivars developed for horticultural purposes. As well as the traditional yellow, other colors are available, such as white, purple, and red. The most crucial hybrid is Chrysanthemum x morifolium (syn. C. x grandiflorum), derived mainly from C. indicum, but also involving other types.Over 140 varieties of chrysanthemum have gained the Royal Horticultural Society's Honor of Garden Merit.

Chrysanthemums are broken into two basic groups, garden hardy and exhibition. Garden hardy moms are new perennials able of wintering in most northern latitudes. Exhibition types are not usually as sturdy. Garden hardies are defined by their capacity to produce an abundance of small blooms with little if any mechanical assistance, such as staking, and withstanding wind and rainfall. Exhibition varieties, though, require staking, overwintering in a relatively dry, cool environment, and sometimes digging in night lights.

The exhibition types can be used to create many amazing flower forms, such as large disbudded blooms, spray forms, and many artistically trained forms, such as thousand-bloom, standard (trees), fans, suspending baskets, topiary, bonsai, and cascades.

Chrysanthemum blooms are divided into 10 different bloom forms by the US National Chrysanthemum Culture, Inc., which is in keeping with the international classification system. The bloom varieties are defined by the way in which the ray and disk florets are arranged. Chrysanthemum blooms consist of many specific flowers (florets), each one capable of producing a seedling. The disk florets are in the center of the bloom head, and the ray florets are on the perimeter. The ray florets are viewed as imperfect flowers, as they only own the female effective organs, while the disk florets are considered perfect flowers, as they have got both male and female reproductive organs.

Chrysanthemum Soft rot, Erwinia species UMass Amherst

Chrysanthemum Soft rot, Erwinia species  UMass Amherst

Cooperative Extension Ornamentals: May 2009

Cooperative Extension Ornamentals: May 2009

chrysanthemum infected by chrysanthemum stunt viroid csvd causing

chrysanthemum infected by chrysanthemum stunt viroid csvd causing

Culture Structures amp; Equipment Pests amp; Diseases Business amp; Ma

 Culture Structures amp; Equipment Pests amp; Diseases Business amp; Ma

chrysanthemum chrysanthemum diseases different types of chrysanthemums

chrysanthemum chrysanthemum diseases different types of chrysanthemums

Chrysanthemums, sometimes called mums or chrysanths, are flowering plant life of the genus Chrysanthemum in the family Asteraceae. They are native to Asia and northeastern Europe. Most species originate from East Asia and the center of diversity is in China. There are countless horticultural varieties and cultivars. The name "chrysanthemum" is derived from the Ancient Ancient greek language:?????? chrysos (gold) and Old Greek:??????? anthemon (flower).

Taxonomy

The genus once included more species, but was split several decades ago into several genera, putting the economically important florist's chrysanthemums in the genus Dendranthema. The naming of the genera has been good, but a ruling of the International Botanical The legislature in 1999 changed the defining species of the genus to Chrysanthemum indicum, restoring the florist's chrysanthemums to the genus Chrysanthemum.The other species previously contained in the narrow view of the genus Chrysanthemum are now utilized in the genus Glebionis. The other genera separate from Chrysanthemum include Argyranthemum, Leucanthemopsis, Leucanthemum, Rhodanthemum, and Tanacetum.

Description

Wild Chrysanthemum taxa are herbaceous perennial plants or subshrubs. They have alternately arranged leaves divided into leaflets with toothed or occasionally smooth edges. The chemical substance inflorescence is an array of several flower minds, or sometimes a solo head. The head has a base covered in layers of phyllaries. The simple row of beam florets are white, orange or red; many horticultural specimens have been bred to bear many lanes of ray florets in a great variety of colors. The disc florets of wild taxa are yellowish. The fruit is a ribbed achene. Chrysanthemums, also known as 'mums', are one of the nicest varieties of perennials that start blooming early in the fall. This is also known as favorite flower for the month of November.

Modern grown chrysanthemums are showier than their wild relatives. The flower heads occur in various forms, and is daisy-like or decorative, like aigrette or buttons. This genus contains many hybrids and thousands of cultivars developed for horticultural purposes. As well as the traditional yellow, other colors are available, such as white, purple, and red. The most crucial hybrid is Chrysanthemum x morifolium (syn. C. x grandiflorum), derived mainly from C. indicum, but also involving other types.Over 140 varieties of chrysanthemum have gained the Royal Horticultural Society's Honor of Garden Merit.

Chrysanthemums are broken into two basic groups, garden hardy and exhibition. Garden hardy moms are new perennials able of wintering in most northern latitudes. Exhibition types are not usually as sturdy. Garden hardies are defined by their capacity to produce an abundance of small blooms with little if any mechanical assistance, such as staking, and withstanding wind and rainfall. Exhibition varieties, though, require staking, overwintering in a relatively dry, cool environment, and sometimes digging in night lights.

The exhibition types can be used to create many amazing flower forms, such as large disbudded blooms, spray forms, and many artistically trained forms, such as thousand-bloom, standard (trees), fans, suspending baskets, topiary, bonsai, and cascades.

Chrysanthemum blooms are divided into 10 different bloom forms by the US National Chrysanthemum Culture, Inc., which is in keeping with the international classification system. The bloom varieties are defined by the way in which the ray and disk florets are arranged. Chrysanthemum blooms consist of many specific flowers (florets), each one capable of producing a seedling. The disk florets are in the center of the bloom head, and the ray florets are on the perimeter. The ray florets are viewed as imperfect flowers, as they only own the female effective organs, while the disk florets are considered perfect flowers, as they have got both male and female reproductive organs.

Chrysanthemum Soft rot, Erwinia species UMass Amherst

Chrysanthemum Soft rot, Erwinia species  UMass Amherst

Cooperative Extension Ornamentals: May 2009

Cooperative Extension Ornamentals: May 2009

chrysanthemum infected by chrysanthemum stunt viroid csvd causing

chrysanthemum infected by chrysanthemum stunt viroid csvd causing

Culture Structures amp; Equipment Pests amp; Diseases Business amp; Ma

 Culture Structures amp; Equipment Pests amp; Diseases Business amp; Ma

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