【作者】 谢楠； 李源； 赵海明； 刘贵波； 时丽冉；

【Author】 XIE Nan~1,LI Yuan~1,ZHAO Haiming~1,LIU Guibo~1,SHI Liran~2 (1.Dry land Farming Research Institute.Hebei Academy of Agriculture and Forestry Sciences,Hengshui,Hebei 053000,China;2.Deprtment of Life Science,Hengshui University,Hengshui,Hebei 053000,China)

【机构】 河北省农林科学院旱作农业研究所； 衡水学院生命科学系；

【摘要】 对供试的9个饲用黑麦、小黑麦品种利用干旱棚田间全生育期模拟干旱法,通过水、旱两处理,从生长发育特性、产量、品质性状、光合、生理指标进行了抗旱性分析,采用抗旱指数进行抗旱性评价,结果表明:各指标的抗旱系数反映出干旱胁迫显著降低了品种的产草量、株高、茎数、茎叶比和粗蛋白含量,成穗率和鲜干比略有增加,光合指标降低。利用抗旱指数评价得出,冬牧70>冀饲2号>冀饲1号>中饲828>中新830>中饲237>NTH1888>NTH1048>劲松49。更多还原

【Abstract】 Using a field simulating dry method through the normal watering and drought stress treatment,the differences of drought resistance for 9 forage rye and triticale varieties were studied from the characteristics of growth and development,yield and quality characters,photosynthetic and physiological indexes.The drought resistance of tested varieties were assessed by drought index(DI).The results showed that these index values,such as the grass yield,plant height,the stem number the ratio of stem/leaf and crude protain content,had a significant decreased trend from drought resistance coefficient(DRC),but little influenced to mature spike number,the ratio of fresh/dry and photosynthetic indexes.According to drought index(DI),the drought resistance of different varieties under fresh yield was as follows:Jicao 1>Jicao 2>Everlush>Jumbro>Wancao 3,and under dry yield was as follows:Dongmu70>Jisi2>Jisi1>Zhongsi828>Zhongxin830>Zhongsi237>NTH 1888>NTH1048>Jinsong49。更多还原