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C4 Bioenergy crops for cool climates, with a particular emphasis on perennial carbon4 Grass
go through Rowan F. Sage, Murillo de Melo Peixoto, Patrick Friesen, Bill Dean
Abstract
There is a lot of interest in cultivating C4 A perennial plant found in northern climates where land is plentiful and the biofuel market potential is large.4 The raw material can show better yield than C3 They are certainly ideal for the long, warm summers of higher latitudes, but their success in the summer depends on their ability to tolerate deep winter chills, spring frosts, and cold spells early in the growing season.
Here, we review the cold tolerance limits in C4Perennial herb. Dozens of species4 The known species is distributed at high latitudes of 63°N and at altitudes of 5200 m, which indicates that C4 Plants can adapt to cold climates.4 Grasses can be used to produce bioenergy in cold climatesMiscanthus SwitchgrassTurned into panic) and prairie barley grass (Spartina sphaerocephala) — All tolerate low temperatures (10–15 °C), but only Spartina can tolerate severe spring frosts. All three overwinter as dormant rhizomes. Miscanthus For hybrids, exposure to temperatures below –3 °C to –7 °C killed overwintering rhizomes, whereas for upland switchgrass and Spartina, rhizomes survived exposure to temperatures above –20 °C to –24 °C. Spartina emerges earlier than switchgrass and Spartina.rice. Monitor Lizard Genotype, but lack of Miscanthus Once the warm days arrive in late spring, the growth potential is huge.4To produce bioenergy in cold climates, breeding should focus on improving cold tolerance M.×Monitor LizardAs well as improving the productivity of switchgrass and rice grass. This should be feasible in the near future, as wild populations of each plant show different cold tolerance and growth capabilities.
See the text: Journal of Experimental Botany
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