玉米-大豆带状种植中套作高光效玉米窄行穂位叶光合特性对弱光胁迫的响应

任永福,陈国鹏,蒲甜,陈诚,曾瑾汐,彭霄,马艳玮,杨文钰,王小春

Responses of photosynthetic characteristics to low light stress in ear leaves of high photosynthetic efficiency maize at narrow row of maize-soybean strip intercropping system

Yong-Fu REN,Guo-Peng CHEN,Tian PU,Cheng CHEN,Jin-Xi ZENG,Xiao PENG,Yan-Wei MA,Wen-Yu YANG,Xiao-Chun WANG

表2 不同处理对玉米窄行穂位叶叶绿体超微结构的影响

Table 2 Effects of different treatments on chloroplast ultrastructure in ear leaves of maize at narrow row

品种 Variety 行距 Row spacing 叶绿体长度Chloroplast length (μm) 叶绿体宽度Chloroplast width (μm) 基粒厚度 Grains thickness (μm) 淀粉颗粒数 Starch granule 嗜锇颗粒数 Osmiophilic particle 众望玉18 20 cm 7.12 bc 3.33 a 0.73 a 3.33 a 3.67 a Zhongwangyu 18 40 cm 7.12 bc 3.10 b 0.72 ab 2.67 ab 3.33 a 单作MM 7.00 d 3.09 bc 0.69 b 2.00 b 1.33 bc 川单418 20 cm 7.13 b 3.26 ab 0.73 a 2.33 ab 2.33 b Chuandan 418 40 cm 7.03 c 3.06 bc 0.68 bc 1.67 bc 1.33 bc 单作MM 6.98 e 3.06 bc 0.63 cd 1.33 bc 0.33 c 荣玉1210 20 cm 7.34 a 3.06 bc 0.65 c 1.00 c 1.00 cd Rongyu 1210 40 cm 7.28 ab 2.99 d 0.61 d 0 d 0 d 单作MM 7.25 ab 2.98 d 0.61 d 0 d 0 d F值 F-value 品种 Varieties (V) 55.28** 8.97* 16.44* 133.42** 16.66* 行距 Row pacing (RS) 11.48* 12.23* 7.18* 31.18** 8.79* 品种×行距 V×RS 0.07 0.11 0.95 0.59 9.09**