10个籽粒苋新品系光合特性日变化的研究  

Study on daily changes of photosynthetic characteristics of 10 new strains of Amaranthus hypochondriacus

作　　者：齐春杰 王建丽[2] 刘杰淋[2] 尤佳 钟鹏[3] 邸桂俐[2] 韩微波[2] 申忠宝[2] 郭长虹[1] QI Chunjie;WANG Jianli;LIU Jielin;YOU Jia;ZHONG Peng;DI Guili;HAN Weibo;SHEN Zhongbao;GUO Changhong(College of Life Science and Technology,Harbin Normal University,Harbin 150080,China;Grass and Science Institute,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China;Rural Energy Research Institute,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)

机构地区：[1]哈尔滨师范大学生命科学与技术学院,哈尔滨150080 [2]黑龙江省农业科学院草业研究所,哈尔滨150086 [3]黑龙江省农业科学院农村能源研究所,哈尔滨150086

出　　处：《黑龙江畜牧兽医》2021年第11期103-108,共6页Heilongjiang Animal Science And veterinary Medicine

基　　金：黑龙江省省院合作项目(YS20B08);黑龙江省科研院所科研业务费项目(CZKYF2020C007);黑龙江省农业科学院“农业科技创新跨越工程”专项(HNK2019CX08);黑龙江省应用技术研究与开发计划重大专项(GA19B103)。

摘　　要：为了筛选适合东北地区种植的高产籽粒苋新品种,试验以10个(LX006、LX010、LX011、LX012、LX013、LX014、LX018、LX019、LX021、LX022)籽粒苋新品系为研究对象,测定叶片的净光合速率、蒸腾速率、气孔导度、胞间CO_(2)浓度、叶绿素含量等光合指标并进行分析。结果表明:10个籽粒苋新品系的净光合速率、蒸腾速率、气孔导度日变化均呈"双峰"型,第1个峰值均出现在10:00,第2个峰值出现在14:00。LX014籽粒苋新品系净光合速率、蒸腾速率、气孔导度峰值均最高,分别为26.12μmol/(m^(2)·s)、6.78 mmol/(m^(2)·s)、0.258μmol/(m^(2)·s)。LX014籽粒苋叶绿素含量也最高,为1 203 mg/m^(2);其次为LX012。10份籽粒苋新品系胞间CO_(2)浓度变化呈"W"型。LX006籽粒苋新品系净光合速率、蒸腾速率、气孔导度及叶绿素含量均最低。说明LX014和LX012新品系在光合特性方面占有明显优势,具有培育高产籽粒苋新品种的潜力。In order to screen new varieties of Amaranthus hypochondriacus suitable for cultivation in northeast China with high yield, 10 new strains of Amaranthus hypochondriacus strains(LX006,LX010,LX011,LX012,LX013,LX014,LX018,LX019,LX021,LX022)were selected as the research materials, and the photosynthetic indexes(net photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO_(2) concentration and chlorophyll content) of their leaves were measured and analyzed. The results showed that the daily changes of net photosynthetic rate, transpiration rate and stomatal conductance of the 10 new Amaranthus hypochondriacus varieties all showed a "double peak" type, and the first peak value appeared at 10:00 AM,and the second peak value appeared at 14:00 PM. The photosynthetic rate, transpiration rate and stomatal conductance peak values of LX014 strains of Amaranthus hypochondriacus were the highest, which were 26.12 μmol/(m^(2)·s),6.78 mmol/(m^(2)·s)and 0.258 μmol/(m^(2)·s),respectively. LX014 new strain also had the highest chlorophyll content, which was 1 203 mg/m^(2),followed by LX012 new strain of Amaranthus hypochondriacus. The intercellular CO_(2) concentration of 10 new Amaranthus hypochondriacus varieties all showed a "W" type. LX006 had the lowest net photosynthetic rate, transpiration rate, stomatal conductance and chlorophyll content. The results indicated that the new strains of LX014 and LX012 had obvious advantages in photosynthetic characteristics and they had the potential to cultivate new Amaranthus hypochondriacus varieties with high yield.

关 键 词：籽粒苋 新品系 净光合速率 蒸腾速率 气孔导度 叶绿素含量 

分 类 号：S603.3[农业科学—园艺学]