木豆在干热河谷退化山地的生态适应性研究  

The study on the ecological adaptability of Cajanus cajan(L.) Millspaugh in the degraded mountain land of dry-hot valley

作　　者：纪中华[1] 杨艳鲜[1] 拜得珍[1] 方海东[1] 廖承飞[1] 潘志贤[1] 沙毓沧[1] 

机构地区：[1]云南省农科院热区生态农业研究所,云南元谋651300

出　　处：《干旱地区农业研究》2007年第3期158-162,202,共6页Agricultural Research in the Arid Areas

基　　金：十五"国家攻关项目:"干热河谷生态恢复技术与示范"(2001BA606A-07);云南省农业厅项目"印度木豆引进与技术示范

摘　　要：2000年木豆(Cajanus cajan(L.)Millspaugh)引入云南省元谋干热河谷地区,观测其物候特征、生长适应性、抗旱适应性、抗光热适应性等植物学指标,以了解其对干热退化山地的整体生态适应性。结果表明,木豆能适应干热河谷的退化山地生长环境,其生长势优于原产地,表现出明显的速生性;木豆的抗光热能力较强,能适应干热河谷的不同光照及高温环境,但温度高于37℃,则光合作用停止;木豆的抗旱能力较强,能够通过不同的生理适应性度过旱季,完成其生长周期。木豆适应于干热河谷的生态环境,利用价值较大,是干热河谷退化山地治理与开发的优选灌木。We introduced varieties of Cajanus cajan （L.） Millspaugh from India to the dry-hot valley of Yuanmou County, Yunnan Province in 2000. Its adaptability of phonological characteristic, growth condition at deteriorate mountain land and drought-heat resistance ete were studied. The results showed that Cajanus cajan （L.） Millspaugh could grow at degraded mountain land in the dry-hot valley, and its growth potential was better than original place. The light-heat resistance of Cajanus cajan （L.） Millspaugh are so strong that it could adapt the different light-heat environment in the dry-hot valley. But if the temperature was more than 37℃, it would stoped photosynthesis. The drought resistance of Cajanus cajan （L.） Millspaugh are also strong, and it could use different physiology modulation to adapt the dry-hot environment for completing its growth period. The Cajanus cajan （L.） Millspaugh could adapt the eeo-environment of dry-hot valley. It is optimization shrub to control degraded mountain land.

关 键 词：木豆 适应性 退化山地 干热河谷 

分 类 号：S322[农业科学—作物遗传育种]