不同产量水平的杂交籼稻品种穴直播茎秆抗倒特性及其差异性比较
郭长春,张桥,孙永健,武云霞,徐徽,何艳,杨志远,马鹏,彭志芸,马均

Comparison of stem lodging resistance characteristics and differences of indica hybrid rice cultivars with different yield levels in precision direct seeding
Changchun GUO,Qiao ZHANG,Yongjian SUN,Yunxia WU,Hui XU,Yan HE,Zhiyuan YANG,Peng MA,Zhiyun PENG,Jun MA
表6 不同产量类型杂交籼稻品种的基部节间扁平率、空腔面积及秆型指数
Table 6 Internode oblate rate, cavity area, and culm type index of indica hybrid rice cultivars in different yield types

地点

Site

品种

Cultivar

秆型指数 Culm type index/% 扁平率 Oblate rate/% 空腔面积 Cavity area/mm2
N1 N2 N3 N1 N2 N3 N1 N2 N3

不同生态区配对t测验(t-值)

Paired t test in different

ecological zones (t-value)

0.85 -4.74** -5.37** -1.33 2.86* 4.46** 5.94** 4.63** 3.62*

三台

Santai

高产

High yield

F优498

F you 498

0.77±0.01a 0.69±0.01a 0.63±0.01a 13.75±0.41a 13.62±0.09a 12.22±0.65a 20.65±0.49c 23.77±1.04b 22.51±0.40bc

隆两优1206

Longliangyou 1206

0.78±0.01a 0.65±0.01b 0.60±0.01b 14.05±0.44a 13.89±0.51a 11.74±0.51a 19.13±0.40d 22.59±0.13c 21.41±0.32c
平均 Average 0.78±0.01a 0.67±0.02a 0.61±0.01a 13.91±0.34a 13.76±0.30a 11.98±0.42a 19.89±0.42c 23.18±0.53c 21.96±0.12b

中产

Medium yield

绿优4923

Lüyou 4923

0.73±0.01b 0.67±0.01ab 0.59±0.01b 12.75±0.62b 12.58±0.19b 10.85±0.35b 23.16±0.57b 24.89±0.27b 23.24±0.47b

宜香优1108

Yixiangyou 1108

0.72±0.04b 0.60±0.01c 0.55±0.01c 12.74±0.16b 12.23±1.13b 10.51±0.25b 22.31±0.58b 23.79±0.20b 20.14±1.01d
平均 Average 0.72±0.03b 0.63±0.01b 0.57±0.01b 12.91±0.43a 12.40±0.49b 10.58±0.11b 22.73±0.48b 24.34±0.24b 21.69±0.37b

低产

Low yield

川优6203

Chuanyou 6203

0.68±0.03c 0.58±0.03c 0.55±0.02c 10.14±0.63c 7.17±0.18d 8.11±0.67c 24.92±0.80a 29.10±0.93a 24.97±0.80a

宜香4245

Yixiang 4245

0.67±0.01c 0.58±0.01c 0.50±0.01d 12.08±0.50b 8.99±0.46c 10.30±0.38b 25.39±0.41a 28.02±0.51a 25.95±0.83a
平均 Average 0.67±0.01c 0.58±0.02c 0.53±0.01c 11.11±0.53b 8.08±0.15c 9.31±0.51c 25.15±0.57a 28.56±0.38a 25.46±0.80a

崇州

Chongzhou

高产

High yield

F优498

F you 498

0.78±0.01a 0.77±0.01a 0.75±0.01a 17.71±0.33a 11.78±0.40b 8.80±0.24b 17.29±0.68b 19.61±0.18d 17.71±0.32c

隆两优1206

Longliangyou 1206

0.73±0.02b 0.70±0.02b 0.68±0.01b 16.14±0.80b 12.67±0.26a 10.54±0.35a 17.82±0.41b 17.97±0.24e 16.17±0.50d
平均 Average 0.75±0.01a 0.74±0.01a 0.72±0.01a 16.92±0.55a 12.22±0.18a 9.67±0.15a 17.55±0.19b 18.79±0.17b 16.94±0.23b

中产

Medium yield

绿优4923

Lüyou 4923

0.67±0.02d 0.68±0.01c 0.65±0.01c 12.15±0.84d 8.11±0.74cd 8.19±0.53bc 17.78±0.35b 23.86±0.54a 23.17±0.50a

宜香优1108

Yixiangyou 1108

0.69±0.01c 0.66±0.01d 0.60±0.02d 11.81±0.29d 8.27±0.21c 7.90±0.25c 16.30±0.52c 20.01±0.45cd 18.74±0.12b

平均

Average

0.68±0.01c 0.67±0.01b 0.62±0.01c 11.98±0.35b 8.19±0.48b 8.05±0.18b 17.04±0.14c 21.94±0.45a 20.95±0.31a

低产

Low yield

川优6203

Chuanyou 6203

0.70±0.01c 0.68±0.01c 0.65±0.02c 13.26±0.50c 7.56±0.33de 7.85±0.55c 19.23±0.63a 20.63±0.29c 19.03±0.23b

宜香4245

Yixiang 4245

0.70±0.01c 0.68±0.01c 0.67±0.01bc 11.45±0.13d 7.40±0.44e 7.92±0.08c 19.35±0.11a 22.82±0.57b 22.80±0.07a

平均

Average

0.70±0.02b 0.68±0.01b 0.66±0.01b 12.35±0.24b 7.48±0.35c 7.89±0.29b 19.29±0.37a 21.72±0.14a 20.92±0.14a