摘要
为了解滴水量对中熟超高产大豆叶片光合生理特性的影响,在田间研究了盛花期后975(W_1),1 575(W_2),2 175(W_3),2 775(W_4)m^3/hm^24种滴水量处理对中熟大豆品种"新大豆27号"植株形态特征、叶面积指数、光合生理特性和产量的影响。结果表明:增加滴水量,直接提高0~40 cm土层含水量,显著增大主茎9~16节节间长和叶柄长,茎粗减小;显著增大主茎6~15节叶面积、群体中上部叶面积指数;显著增大叶片叶绿素含量、净光合速率、气孔导度、蒸腾速率,降低胞间二氧化碳浓度;显著降低叶片可溶性总糖含量和蔗糖含量,增强生育前期叶片淀粉的积累和生育后期高效的运转;W4、W3处理产量分别为6 404.7,6 082.6 kg/hm^2,分别较W1增产27.6%、21.2%。新疆伊宁地区大豆产量可达6 000.0 kg/hm^2,其生育期间田间适宜总滴水量为2 175~2 775 m^3/hm^2。
To clarify the effects of dripping amount on photosynthetic physiological traits of leaves of mid-mature super-high-yield soybean,filed study was conducted to investigate the effects of 4 different dripping amount treatments of 975（ W1）,1 575（ W2）,2 175（ W3） and 2 775（ W4） m^3/ hm^2 on plant morphological characters,leaf area index,photosynthesis and yield of mid-mature soybean line xindadou 27. The results show that with the increase of dripping amount of water,0—40 cm soil moisture was increased,main stem length between 9—16 and petiole length were obviously increased,and stem diameter was decreased; Main stem section 6—15 leaf area and group upper leaf area index were obviously increased; Leaf net photosynthetic rate,transpiration rate,stomatal conductance and chlorophyll content were obviously increased,and intercellular CO2 concentration was decreased; Leaf soluble sugar content and sucrose content were obviously reduced,and leaf starch accumulation at early fertility stage and high efficient operation at late fertility stage were enhanced.Yields of treatments W4 and W3 were up to 6 404. 7 kg / hm^2 and 6 082. 6 kg / hm^2,with an increase of 27. 6% and 21. 2% respectively compared with W1. Soybean production in Yining district of Xinjiang was 6 000. 0 kg / hm^2,and the most appropriate total field dripping amount during fertility period was 2 175—2 775 m^3/ hm^2.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2016年第1期12-19,共8页
Journal of Jilin Agricultural University
基金
国家自然科学基金项目(31160266)
关键词
大豆
滴水量
光合特性
超高产
soybean
dripping amount
photosynthetic trait
super-high yield
