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Reference · Crops

Grasses

Grasses (Latin: Poaceae) form one of the most important plant families in agriculture, encompassing vital cereal crops like wheat, rice, maize, barley, and oats. These monocotyledonous plants are the foundation of global food security, providing essential grains for human consumption, livestock feed, and diverse industrial raw materials such as biofuel and textiles.

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Parapholis5 Pappophorum2 Pappophorum2 Pariana2 Paractaenum1 Parafestuca1 Parahyparrhenia1 Paratheria1
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Panicum callosum Panicum callosum Panicum caudiglumae Panicum caudiglumae Panicum decompositum Panicum decompositum Panicum effusum Panicum effusum Panicum elephantipes Panicum elephantipes Panicum fasciculatum Panicum fasciculatum Panicum fluviicola Panicum fluviicola Panicum gouinii Panicum gouinii Panicum gracilicaule Panicum gracilicaule Panicum griffonii Panicum griffonii Panicum hochstetteri Panicum hochstetteri Panicum incomtum Panicum incomtum Panicum khasianum Panicum khasianum Panicum laetum Panicum laetum Panicum lindleyanum Panicum lindleyanum Panicum luridum Panicum luridum Panicum majusculum Panicum majusculum Panicum micranthum Panicum micranthum Panicum millegrana Panicum millegrana Panicum monostachyum Panicum monostachyum Panicum nervosum Panicum nervosum Panicum notatum Panicum notatum Panicum obseptum Panicum obseptum Panicum paludivagum Panicum paludivagum Panicum paniciformis Panicum paniciformis Panicum parvifolium Panicum parvifolium Panicum patens Panicum pansum Panicum porphyrrhizos Panicum porphyrrhizos Panicum prionitis Panicum prionitis Panicum prolutum Panicum prolutum Panicum pseudowoeltzkowii Panicum pseudowoeltzkowii Panicum pubiglume Panicum pubiglume Panicum rivulare Panicum rivulare Panicum sabulorum Panicum sabulorum Panicum sadinii Panicum sadinii Panicum sarmentosum Panicum sarmentosum Panicum scabriusculum Panicum scabriusculum Panicum scoparium Panicum scoparium Panicum sphaerocarpon Panicum sphaerocarpon Panicum stapfianum Panicum stapfianum Panicum torridum Panicum torridum Panicum trichantum Panicum trichantum Panicum trichocladum Panicum trichocladum Panicum trichoides Panicum trichoides Panicum trichonode Panicum trichonode Panicum trypheron Panicum trypheron Panicum urvilleanum Panicum urvilleanum Panicum walense Panicum walense Panicum whitei Panicum whitei Pannonian bluegrass Poa pannonica Pannonian brome Bromus pannonicus Pappophorum Pappophorum Schreb. 2 items Pappophorum Pappophorum 2 items Pappose feathergrass Stipa papposa Paractaenum Paractaenum 1 item Parafestuca Parafestuca 1 item Parahyparrhenia Parahyparrhenia 1 item Parapholis Parapholis 5 items Paratheria Paratheria 1 item Pariana Pariana 2 items

Grasses

Botanically, grasses are characterized by fibrous root systems, jointed stems known as culms, and leaves with parallel venation. Their flowers are typically arranged in spikelets, forming complex inflorescences like spikes or panicles. The fruit is a caryopsis, a type of grain in which the fruit wall is fused to the seed coat, distinguishing them from other botanical fruits.

The distribution of grasses is worldwide, ranging from equatorial regions to subarctic zones. This adaptability is the result of long-term natural evolution and centuries of selective breeding. Most cultivated grasses originated in fertile valleys of the Near East, East Asia, and the Americas, where ancient civilizations first practiced sedentary agriculture.

Agronomic requirements depend on the specific species, though most grasses thrive in well-drained soils rich in nitrogen, phosphorus, and potassium. Crop management practices include soil tillage, strategic fertilization, and adherence to crop rotation cycles to maintain soil health. Irrigation is essential for high-yield species like rice, while others are adapted to rain-fed farming systems.

Key challenges in cultivation include fungal pathogens like rusts, smuts, and mildews, alongside insect pests such as aphids, stem borers, and locusts. Integrated Pest Management (IPM) strategies, involving the use of resistant crop varieties, biological control, and judicious pesticide application, are essential for ensuring sustainable yields and optimal grain quality.

  • Cereals: primary grains for food production.
  • Forage grasses: critical for livestock pastures and silage.
  • Turf and ornamental grasses: significant for landscaping and soil erosion control.