小麦产量对中后期氮素胁迫的响应及品种间差异
李朝苏,吴晓丽,汤永禄,李俊,马孝玲,李式昭,黄明波,刘淼

Response of yield and associated physiological characteristics for different wheat cultivars to nitrogen stress at mid-late growth stage
Chao-Su LI,Xiao-Li WU,Yong-Lu TANG,Jun LI,Xiao-Ling MA,Shi-Zhao LI,Ming-Bo HUANG,Miao LIU
表2 不同小麦品种产量、产量构成及生物产量对中后期氮胁迫的响应
Table 2 Yield, yield components and biomass of different wheat cultivars in response to nitrogen stress at mid-later growth stage
年份
Year		 处理Treatment 品种
Cultivar		 产量
Yield
(kg hm-2)		 粒数
Grain number (×104 hm-2)		 千粒重
1000-kernel weight (g)		 生物产量
Biomass
(kg hm-2)		 收获指数
Harvest index
2016 Nn 川麦42 Chuanmai 42 9627 a 17851 a 48.3 a 18989 a 0.44 a
川麦104 Chuanmai 104 9263 a 17190 a 45.6 b 18296 ab 0.44 a
绵麦367 Mianmai 367 9556 a 18518 a 44.6 c 18702 a 0.45 a
绵麦37 Mianmai 37 7284 b 15203 a 45.8 b 14861 c 0.43 a
川农16 Chuannong 16 9119 a 16413 a 42.7 d 18937 a 0.42 a
川麦30 Chuanmai 30 7540 b 16397 a 40.4 e 15430 c 0.43 a
平均 Mean 8732 16929 44.6 17536 0.43
SDC 9482 17853* 46.2 18663 0.44**
NSC 7981 16004 43.0 16409 0.43
Ns 川麦42 Chuanmai 42 7696 a 12744 b 49.7 a 15493 a 0.43 ab
川麦104 Chuanmai 104 7335 a 12705 b 46.9 b 14973 ab 0.43 ab
绵麦367 Mianmai 367 7991 a 15275 a 48.5 ab 15527 a 0.45 a
绵麦37 Mianmai 37 6447 b 11231 b 48.1 b 13442 bc 0.42 bc
川农16 Chuannong 16 6509 b 11960 b 44.0 c 13170 bc 0.43 ab
川麦30 Chuanmai 30 5512 c 12303 b 40.8 d 12082 c 0.40 c
平均 Mean 6915 12703 46.3 14115 0.43
SDC 7674* 13575 48.4 15331** 0.44
NSC 6156 11831 44.3 12898 0.42
2017 Nn 川麦42 Chuanmai 42 8355 d 12893 c 59.7 a 18647 a 0.39 c
川麦104 Chuanmai 104 10332 a 16922 a 53.9 bc 18615 a 0.48 a
绵麦367 Mianmai 367 9815 b 15559 ab 56.0 b 18507 a 0.46 ab
绵麦37 Mianmai 37 8766 c 15218 ab 55.6 b 17188 b 0.44 b
川农16 Chuannong 16 8837 c 15346 ab 52.4 c 16426 b 0.47 ab
川麦30 Chuanmai 30 8297 d 14443 bc 53.8 bc 16222 b 0.45 b
平均 Mean 9067 15063 55.2 17601 0.46
SDC 9501 15125 56.5 18590* 0.45
NSC 8634 15002 54.0 16612 0.45
Ns 川麦42 Chuanmai 42 6352 bc 8735 b 60.4 a 14798 a 0.37 b
川麦104 Chuanmai 104 8213 a 11480 ab 56.8 abc 15350 a 0.46 a
绵麦367 Mianmai 367 8229 a 14154 a 53.3 c 15343 a 0.47 a
绵麦37 Mianmai 37 7397 abc 10912 ab 59.3 a 15170 a 0.42 ab
川农16 Chuannong 16 7643 ab 12346 ab 55.3 bc 15112 a 0.44 a
川麦30 Chuanmai 30 6232 c 9202 b 58.0 ab 14838 a 0.37 b
平均 Mean 7344 11138 57.2 15102 0.42
SDC 7598 11456 56.9 15164 0.43
NSC 7091 10820 57.5 15040 0.41