Growth,yield, fiber content and lodging resistance in eight varieties of Cenchrus purpureus (Schumach.) Morrone intended as energy crop |
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| Affiliation: | 1. Colegio de Postgraduados, Campus Montecillo, km 36.5 Carretera México-Texcoco, Montecillo, Texcoco, Estado de México, C.P. 56230, Mexico;2. Colegio de Postgraduados, Campus Veracruz, km 88.5 Carretera Xalapa-Veracruz, Predio Tepetates, Veracruz, C.P. 91690, Mexico;3. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Campo Experimental La Posta, km 22.5 Carretera Veracruz-Córdoba, Paso del Toro, Medellín de Bravo, Veracruz, C.P. 94277, Mexico;4. Colegio de Postgraduados, Campus Puebla, km 125.5 Carretera Federal México-Puebla, Puebla, C.P. 72760, Mexico;1. Centre for Environmental Engineering Research and Education (CEERE), Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada;2. Council of Scientific and Industrial Research-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India;1. College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan 471022, PR China;2. College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang, Henan 473061, PR China;1. Instituto de Investigaciones Agropecuarias y Forestales (IIAF), Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), Av. San Juanito Itzícuaro s/n, Col. Nueva Esperanza, Morelia, Michoacán 58337, Mexico;2. Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, Mexico;3. Instituto de Investigaciones en Ecosistemas y Sustentabilidad (IIES), Universidad Nacional Autónoma de México (UNAM), Campus Morelia. Antigua Carretera a Pátzcuaro No.8701, Col. Ex Hacienda de Sán José de la Huerta, Morelia, Michoacán 58190, Mexico |
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| Abstract: | Growth, biomass yield, fiber content and lodging resistance were studied, during a six month growth period, for eight varieties of Cenchrus purpureus, intended as energy crop, in Veracruz, Mexico. Then, only yield at day 182 was assessed for two additional years. The varieties were: CT115 (CT), African Cane (AC), Taiwan (TAI), King Grass (KG), Vruckwona (VRU), Roxo (RX), OM22 (OM) and Cameroon (CAM). Local weather is warm and sub-humid, historical data for monthly average temperature and annual rainfall were 25.8 °C and 1142 mm, respectively. Height, diameter and light interception were measured monthly from day 65–185. At day 185, biomass yield and tiller density were measured. Number of lying tillers was counted to estimate lodging resistance. Cellulose and hemicellulose content were estimated in leaf and stem. No differences were found for dry matter yield or stem yield at day 185 in the first year. Regarding the next two years, TAI yielded above CT, OM or ROX. Average dry matter yield was higher in the second year than in the establishment cycle (38.6 vs 21.1 Mg ha?1), but decreased in the third year (32.2 Mg ha?1). In both stem and whole plant, AC and KG showed higher hemicellulose content than RX, OM or CT; while AC and VRU had higher cellulose than RX in stem, or than CT in the whole plant. Furthermore, varieties AC, KG, VRU and TAI were resistant to lodging and had a higher fiber content, so they are recommended as energetic crops. |
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| Keywords: | Cellulose Biomass Lignin Napier grass Cutting frequency CT"} {"#name":"keyword" "$":{"id":"kwrd0045"} "$$":[{"#name":"text" "_":"CT115 AC"} {"#name":"keyword" "$":{"id":"kwrd0055"} "$$":[{"#name":"text" "_":"African Cane TAI"} {"#name":"keyword" "$":{"id":"kwrd0065"} "$$":[{"#name":"text" "_":"Taiwan KG"} {"#name":"keyword" "$":{"id":"kwrd0075"} "$$":[{"#name":"text" "_":"King Grass VRU"} {"#name":"keyword" "$":{"id":"kwrd0085"} "$$":[{"#name":"text" "_":"Vruckwona RX"} {"#name":"keyword" "$":{"id":"kwrd0095"} "$$":[{"#name":"text" "_":"Roxo OM"} {"#name":"keyword" "$":{"id":"kwrd0105"} "$$":[{"#name":"text" "_":"OM22 CAM"} {"#name":"keyword" "$":{"id":"kwrd0115"} "$$":[{"#name":"text" "_":"Cameroon NDF"} {"#name":"keyword" "$":{"id":"kwrd0125"} "$$":[{"#name":"text" "_":"Neutral Detergent Fiber ADF"} {"#name":"keyword" "$":{"id":"kwrd0135"} "$$":[{"#name":"text" "_":"Acid Detergent Fiber ADL"} {"#name":"keyword" "$":{"id":"kwrd0145"} "$$":[{"#name":"text" "_":"Acid Detergent Lignin INIFAP"} {"#name":"keyword" "$":{"id":"kwrd0155"} "$$":[{"#name":"text" "_":"Mexican Institute for Forestry Agricultural and Livestock Research (for its given acronym in Spanish) |
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