中国农业科学 ›› 2021, Vol. 54 ›› Issue (17): 3632-3646.doi: 10.3864/j.issn.0578-1752.2021.17.007
陈静1(),任佰朝1,赵斌1,刘鹏1,杨今胜2,张吉旺1(
)
收稿日期:
2020-11-16
接受日期:
2021-04-08
出版日期:
2021-09-01
发布日期:
2021-09-09
通讯作者:
张吉旺
作者简介:
陈静,E-mail: 基金资助:
CHEN Jing1(),REN BaiZhao1,ZHAO Bin1,LIU Peng1,YANG JinSheng2,ZHANG JiWang1(
)
Received:
2020-11-16
Accepted:
2021-04-08
Online:
2021-09-01
Published:
2021-09-09
Contact:
JiWang ZHANG
摘要:
【目的】在当前气候变化和夏玉米品种更替的背景下,如何调整品种和播种期以适应当地有效积温的变化对夏玉米的生产具有重要的意义。本研究通过分析不同熟期夏玉米品种产量形成对播期的响应,以期为当地适宜播期和品种的选择提供理论依据。【方法】2017—2019年,共选用3个中早熟夏玉米品种登海518(DH518)、京农科728(JNK728)、登海618(DH618),3个中晚熟品种郑单958(ZD958)、登海605(DH605)、先玉335(XY335)作为试验材料,并设置6月5日(E)、6月15日(N)、6月25日(L)3个播期,探讨播期对不同熟期夏玉米授粉结实和产量形成等的影响。【结果】播期推迟至6月25日,各品种千粒重增加,单位面积穗数、穗粒数显著降低,产量下降。与6月25日播种中晚熟品种相比,6月5日播种,产量和有效积温生产效率分别增加28.81%和16.24%;与6月25日播种中早熟品种相比,6月15日播种,产量和有效积温生产效率分别增加18.92%和14.66%。随播期推迟,不同品种全生育期有效积温降低1.21%—10.62%,中晚熟品种的降幅大于中早熟品种;中早熟品种总结实率降低6.25%—19.94%,中晚熟品种总结实率降低8.11%—27.32%,中晚熟品种的降幅大于中早熟品种;不同品种空秆率增高1.42%—14.72%,与品种熟期无关;中早熟品种收获指数先升高后降低,变幅在15.91%—20.23%,中晚熟品种收获指数降幅在2.36%—27.69%。不同品种产量与有效积温呈正相关,且吐丝期—成熟期有效积温与产量的关系更密切;有效积温、收获指数、总结实率、全生育期天数4个因素中,中早熟品种的产量与收获指数、总结实率的关系更密切,而中晚熟品种的产量与有效积温、收获指数的相关性更强;中早熟品种的有效积温与全生育期天数的相关性强于其与总结实率、收获指数和产量的相关性,而中晚熟品种的有效积温与产量的相关性强于其与收获指数、总结实率和全生育期天数的相关性。【结论】中早熟品种产量受有效积温限制较小,1 700℃·d左右的全生育期有效积温更有利于保证其较高的结实率和收获指数,进而获得高产;中晚熟品种产量受有效积温限制较大,1 800℃·d以上的有效积温更有利于其产量的增加。在当地气候条件下,6月5日左右播种中晚熟品种、6月15日左右播种中早熟品种,有利于获得较高产量且提高有效积温生产效率。
陈静,任佰朝,赵斌,刘鹏,杨今胜,张吉旺. 基于品种生育期有效积温确定夏玉米适宜播期[J]. 中国农业科学, 2021, 54(17): 3632-3646.
CHEN Jing,REN BaiZhao,ZHAO Bin,LIU Peng,YANG JinSheng,ZHANG JiWang. Determination on Suitable Sowing Date of Summer Maize Hybrids Based on Effective Accumulated Temperature in Growth Period[J]. Scientia Agricultura Sinica, 2021, 54(17): 3632-3646.
表1
选用玉米品种及其生育期(2017—2019)"
年份Year | 熟期Maturity | 品种Hybrid | 出苗-成熟期天数VE-R6 (d) |
---|---|---|---|
2017 | 中早熟Medium early maturity | 登海518 DH518 | 100 |
中晚熟Medium late maturity | 郑单958 ZD958 | 110 | |
2018 | 中早熟Medium early maturity | 京农科728 JNK728 | 100 |
登海618 DH618 | 99 | ||
中晚熟Medium late maturity | 郑单958 ZD958 | 110 | |
登海605 DH605 | 110 | ||
2019 | 中早熟Medium early maturity | 京农科728 JNK728 | 100 |
登海618 DH618 | 99 | ||
中晚熟Medium late maturity | 郑单958 ZD958 | 110 | |
先玉335 XY335 | 110 |
表2
播期对不同熟期夏玉米产量及其构成因素的影响"
年份 Year | 品种 Hybrid | 播期 Sowing date (M-D) | 产量 Yield (kg·hm-2) | 千粒重 1000-kernel weight (g) | 穗粒数 Kernels per ear | 穗数 Harvest ear number (ears/hm2) |
---|---|---|---|---|---|---|
2017 | DH518 | 06-05 | 10794a | 356a | 471ab | 64375ab |
06-15 | 11033a | 347a | 483a | 65833a | ||
06-25 | 9754b | 332b | 467b | 62917b | ||
ZD958 | 06-05 | 13043a | 370a | 553a | 63750b | |
06-15 | 12757b | 367b | 515b | 67500a | ||
06-25 | 9831c | 339c | 446c | 65025b | ||
2018 | JNK728 | 06-05 | 9154ab | 337b | 422a | 64365b |
06-15 | 9717a | 340b | 427a | 66930a | ||
06-25 | 8780b | 365a | 369b | 65190ab | ||
DH618 | 06-05 | 8941a | 347b | 399b | 64575a | |
06-15 | 10455a | 375a | 423a | 65910a | ||
06-25 | 7538b | 375a | 322c | 62430b | ||
ZD958 | 06-05 | 9583b | 297b | 478b | 67500a | |
06-15 | 11208a | 338a | 495a | 66990ab | ||
06-25 | 9390b | 343a | 421c | 65025b | ||
DH605 | 06-05 | 12158a | 342c | 535a | 66450a | |
06-15 | 11341b | 356b | 487b | 65415a | ||
06-25 | 9687c | 386a | 387c | 64845a | ||
2019 | JNK728 | 06-05 | 9037b | 335c | 438a | 61590a |
06-15 | 9694a | 382b | 406b | 62505a | ||
06-25 | 7857c | 393a | 375c | 53310b | ||
DH618 | 06-05 | 10399b | 354c | 480a | 61200a | |
06-15 | 11289a | 406a | 461b | 60315a | ||
06-25 | 9954c | 394b | 445c | 56775b | ||
ZD958 | 06-05 | 10846a | 342b | 501a | 63300a | |
06-15 | 9698b | 345b | 473b | 59430b | ||
06-25 | 9166c | 395a | 385c | 60270b | ||
XY335 | 06-05 | 11389a | 365b | 508a | 61425a | |
06-15 | 9675b | 334c | 492a | 58875b | ||
06-25 | 7962c | 405a | 366b | 53715c | ||
ANOVA | 年份 Year(Y) | ns | ns | ns | ** | |
品种Hybrid(H) | * | * | ** | ns | ||
播期Sowing date(S) | ** | ** | ** | * | ||
品种×播期H×S | * | ** | ** | ns |
表3
播期对不同熟期夏玉米生育进程的影响"
年份 Year | 品种 Hybrid | 播期 Sowing date (M-D) | 播种—出苗 SD-VE (d) | 出苗—拔节 VE-V6 (d) | 拔节—抽雄 V6-VT (d) | 抽雄—吐丝 VT-R1 (d) | 吐丝—成熟 R1-R6 (d) | 全生育期天数 Total growth period (d) |
---|---|---|---|---|---|---|---|---|
2018 | JNK728 | 06-05 | 5 | 19 | 25 | 3 | 48 | 100 |
06-15 | 5 | 17 | 24 | 1 | 55 | 102 | ||
06-25 | 4 | 15 | 24 | 2 | 63 | 108 | ||
DH618 | 06-05 | 5 | 19 | 25 | 0 | 53 | 102 | |
06-15 | 5 | 17 | 26 | 0 | 54 | 102 | ||
06-25 | 4 | 15 | 22 | 2 | 62 | 105 | ||
ZD958 | 06-05 | 5 | 19 | 28 | 2 | 59 | 113 | |
06-15 | 5 | 17 | 27 | 1 | 69 | 119 | ||
06-25 | 4 | 15 | 26 | 2 | 66 | 113 | ||
DH605 | 06-05 | 5 | 19 | 27 | 2 | 59 | 112 | |
06-15 | 5 | 17 | 26 | 0 | 62 | 110 | ||
06-25 | 4 | 15 | 27 | 1 | 62 | 109 | ||
2019 | JNK728 | 06-05 | 5 | 16 | 28 | 3 | 54 | 106 |
06-15 | 5 | 17 | 26 | 1 | 56 | 105 | ||
06-25 | 4 | 17 | 26 | 2 | 56 | 105 | ||
DH618 | 06-05 | 5 | 16 | 28 | 1 | 56 | 106 | |
06-15 | 5 | 16 | 26 | 1 | 58 | 106 | ||
06-25 | 4 | 16 | 26 | 1 | 59 | 106 | ||
ZD958 | 06-05 | 5 | 18 | 29 | 2 | 59 | 113 | |
06-15 | 5 | 18 | 26 | 1 | 69 | 119 | ||
06-25 | 4 | 18 | 27 | 1 | 73 | 123 | ||
XY335 | 06-05 | 5 | 21 | 28 | 1 | 54 | 109 | |
06-15 | 5 | 18 | 29 | 1 | 59 | 112 | ||
06-25 | 4 | 18 | 30 | 0 | 57 | 109 |
表4
播期对不同熟期夏玉米有效积温的影响"
年份 Year | 品种 Hybrid | 播期 Sowing date (M-D) | 播种-出苗 SD-VE (℃·d) | 出苗-吐丝 VE-R1 (℃·d) | 吐丝-成熟 R1-R6 (℃·d) | 全生育期 Total growth period (℃·d) | 有效积温生产效率 Production efficiency of EAT (kg·hm-2·(℃·d)-1) |
---|---|---|---|---|---|---|---|
2018 | JNK728 | 06-05 | 101.35 | 864.15 | 815.25 | 1780.75 | 5.14b |
06-15 | 98.95 | 799.15 | 846.35 | 1744.45 | 5.57a | ||
06-25 | 104.75 | 810.30 | 787.40 | 1702.45 | 5.16b | ||
DH618 | 06-05 | 101.35 | 801.75 | 904.80 | 1807.90 | 4.95b | |
06-15 | 98.95 | 820.65 | 824.85 | 1744.45 | 5.99a | ||
06-25 | 104.75 | 767.70 | 824.15 | 1696.60 | 4.44c | ||
ZD958 | 06-05 | 101.35 | 901.15 | 915.30 | 1917.80 | 5.00c | |
06-15 | 98.95 | 862.50 | 897.50 | 1858.95 | 6.03a | ||
06-25 | 104.75 | 850.90 | 767.05 | 1722.70 | 5.45b | ||
DH605 | 06-05 | 101.35 | 882.65 | 924.40 | 1908.40 | 6.37a | |
06-15 | 98.95 | 820.65 | 883.65 | 1803.25 | 6.29a | ||
06-25 | 104.75 | 850.90 | 750.10 | 1705.75 | 5.68b | ||
2019 | JNK728 | 06-05 | 93.50 | 824.60 | 774.00 | 1692.10 | 5.34b |
06-15 | 112.60 | 768.35 | 745.00 | 1625.95 | 5.96a | ||
06-25 | 83.10 | 775.60 | 667.90 | 1526.60 | 5.15b | ||
DH618 | 06-05 | 93.50 | 786.70 | 811.90 | 1692.10 | 6.15b | |
06-15 | 112.60 | 750.10 | 775.35 | 1638.05 | 6.89a | ||
06-25 | 83.10 | 748.25 | 700.45 | 1531.80 | 6.50ab | ||
ZD958 | 06-05 | 93.50 | 864.15 | 809.70 | 1767.35 | 6.14a | |
06-15 | 112.60 | 786.20 | 847.15 | 1745.95 | 5.55b | ||
06-25 | 83.10 | 790.80 | 732.20 | 1606.10 | 5.71b | ||
XY335 | 06-05 | 93.50 | 882.00 | 745.75 | 1721.25 | 6.62a | |
06-15 | 112.60 | 834.80 | 752.40 | 1699.80 | 5.69b | ||
06-25 | 83.10 | 821.30 | 648.30 | 1552.70 | 5.13c | ||
ANOVA | 年份Year(Y) | * | ns | * | * | ns | |
品种Hybrid(H) | ns | ns | * | * | * | ||
播期Sowing date(S) | * | * | * | * | * | ||
品种×播期H×S | ns | ns | * | * | * |
表5
不同熟期夏玉米品种的雄穗发育特性"
年份 Year | 品种 Hybrid | 播期 Sowing date (M-D) | 雄穗分支数 Tassel branch numbers | 雄穗总小花数 Total tassel spikelet numbers | 不育小花数 Spikelet abortion numbers | 小花败育率 Spikelet abortion rate (%) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
2018 | JNK728 | 06-05 | 9 | 568a | 21c | 3.70b | ||||||
06-15 | 9 | 537b | 30b | 5.59b | ||||||||
06-25 | 7 | 544ab | 52a | 9.56a | ||||||||
DH618 | 06-05 | 7 | 640c | 64a | 10.00a | |||||||
06-15 | 8 | 689b | 45b | 6.53b | ||||||||
06-25 | 8 | 798a | 24c | 3.01c | ||||||||
ZD958 | 06-05 | 23 | 1156b | 54b | 4.67b | |||||||
06-15 | 22 | 1176b | 61b | 5.19b | ||||||||
06-25 | 25 | 1365a | 176a | 12.89a | ||||||||
DH605 | 06-05 | 10 | 815a | 56b | 6.87b | |||||||
06-15 | 8 | 622b | 28c | 4.50c | ||||||||
06-25 | 9 | 806a | 83a | 10.30a | ||||||||
2019 | JNK728 | 06-05 | 10 | 683a | 3b | 0.44b | ||||||
06-15 | 9 | 607b | 10a | 1.65a | ||||||||
06-25 | 8 | 506c | 8a | 1.58a | ||||||||
DH618 | 06-05 | 6 | 613a | 9a | 1.46a | |||||||
06-15 | 6 | 500b | 8a | 1.60a | ||||||||
06-25 | 5 | 591a | 11a | 1.86a | ||||||||
ZD958 | 06-05 | 21 | 1389a | 2c | 0.14c | |||||||
06-15 | 20 | 1295b | 21b | 1.62b | ||||||||
06-25 | 24 | 1447a | 55a | 3.80a | ||||||||
XY335 | 06-05 | 5 | 453b | 2c | 0.44c | |||||||
06-15 | 5 | 563a | 17b | 3.02b | ||||||||
06-25 | 5 | 537a | 36a | 6.70a |
表6
不同熟期夏玉米品种雌穗小花和穗粒数"
年份 Year | 品种 Hybrid | 播期 Sowing date (M-D) | 总小花数Number of total floret | 受精小花数Number of fertilization floret | 穗粒数Number of normal kernel | 小花受精率Floret fertility rate (%) | 小花结实率Flower seed setting rate (%) | 籽粒败育率Seed abortive rate (%) | 总结实率Total seed setting rate (%) | 总败育率Total abortive rate (%) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2018 | JNK728 | 06-05 | 664b | 544a | 422a | 81.97b | 77.53a | 22.47b | 63.55a | 36.45b | ||||||
06-15 | 680a | 559a | 427a | 82.25b | 76.35a | 23.65b | 62.79a | 37.21b | ||||||||
06-25 | 616c | 534a | 369b | 86.69a | 69.10b | 30.90a | 59.90b | 40.10a | ||||||||
DH618 | 06-05 | 600a | 497b | 399b | 82.88b | 80.23b | 19.77b | 66.50c | 33.50a | |||||||
06-15 | 604a | 544a | 423a | 90.12a | 77.71c | 22.29a | 70.03b | 29.97b | ||||||||
06-25 | 444b | 331c | 322c | 74.62c | 97.19a | 2.81c | 72.52a | 27.48c | ||||||||
ZD958 | 06-05 | 696a | 588a | 478a | 84.44a | 81.33b | 18.67b | 68.68b | 31.32b | |||||||
06-15 | 650b | 563a | 495a | 86.57a | 87.97a | 12.03c | 76.15a | 23.85c | ||||||||
06-25 | 700a | 595a | 421b | 84.96a | 70.79c | 29.21a | 60.14c | 39.86a | ||||||||
DH605 | 06-05 | 1028a | 925a | 535a | 90.01a | 57.82a | 42.18b | 52.04a | 47.96b | |||||||
06-15 | 1000a | 893a | 487b | 89.27a | 54.55b | 45.45a | 48.70b | 51.30a | ||||||||
06-25 | 796b | 667b | 387c | 83.79b | 58.02a | 41.98b | 48.62b | 51.38a | ||||||||
2019 | JNK728 | 06-05 | 576c | 533a | 438a | 92.53a | 82.18a | 17.82b | 76.04a | 23.96c | ||||||
06-15 | 652a | 532a | 406b | 81.60b | 76.32b | 23.68a | 62.27b | 37.73b | ||||||||
06-25 | 616b | 468b | 375c | 75.97c | 80.13a | 19.87b | 60.88c | 39.12a | ||||||||
DH618 | 06-05 | 572a | 496a | 480a | 86.71a | 96.77a | 3.23b | 83.92a | 16.08b | |||||||
06-15 | 586a | 501a | 461b | 85.49a | 92.02b | 7.98a | 78.67b | 21.33a | ||||||||
06-25 | 574a | 478b | 445c | 83.28b | 93.10b | 4.91b | 77.53b | 22.47a | ||||||||
ZD958 | 06-05 | 654a | 622a | 501a | 95.11a | 80.55a | 19.45c | 76.61a | 23.39c | |||||||
06-15 | 672a | 637a | 473b | 94.79a | 74.25b | 25.75b | 70.39b | 29.61b | ||||||||
06-25 | 650a | 566b | 385c | 87.08b | 68.02c | 31.98a | 59.23c | 40.77a | ||||||||
XY335 | 06-05 | 695b | 560b | 508a | 80.58a | 90.71a | 9.29c | 73.09a | 26.91c | |||||||
06-15 | 756a | 609a | 492a | 80.56a | 80.79b | 19.21b | 65.08b | 34.92b | ||||||||
06-25 | 688b | 505c | 366b | 73.40b | 72.48c | 27.52a | 53.20c | 46.80a |
表7
播期对不同熟期夏玉米穗部性状的影响(2019)"
品种 Hybrid | 播期 Sowing date (M-D) | 空秆率 Empty shot rate (%) | 双穗率 Double-ear rate (%) | 畸形率 Abnormal ear rate (%) | 穗长 Ear length (cm) | 秃顶长 Barren ear length (cm) | 穗粗 Ear diameter (cm) | 秃尖比 Barren ear length/ ear length (%) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
JNK728 | 06-05 | 1.47b | 0 | 27.16a | 17.57a | 1.54b | 4.62b | 8.74b | ||||||
06-15 | 0c | 0 | 27.11a | 17.47a | 2.22a | 4.73b | 12.71a | |||||||
06-25 | 14.72a | 0 | 13.70b | 14.46b | 0.94c | 5.11a | 6.61c | |||||||
DH618 | 06-05 | 2.08c | 0 | 15.56a | 17.17a | 0.34c | 4.6b | 1.97c | ||||||
06-15 | 3.50b | 0 | 12.31b | 17.56a | 1.21a | 4.85ab | 6.80a | |||||||
06-25 | 9.16a | 0 | 8.92c | 17.87a | 0.91b | 4.95a | 5.06b | |||||||
ZD958 | 06-05 | 0c | 1.28 | 12.42b | 17.06a | 0.63b | 4.87b | 3.69c | ||||||
06-15 | 4.93b | 0 | 11.59c | 15.61b | 0.68b | 5.08ab | 4.32b | |||||||
06-25 | 9.09a | 6.06 | 19.64a | 13.29c | 1.14a | 5.19a | 8.63a | |||||||
XY335 | 06-05 | 1.74c | 0 | 19.16b | 19.64a | 1.90a | 4.53b | 9.65b | ||||||
06-15 | 5.80b | 0 | 9.46c | 16.54c | 0.81b | 4.64ab | 4.95c | |||||||
06-25 | 14.06a | 0 | 30.90a | 17.51b | 1.99a | 4.98a | 11.38a |
表8
不同熟期夏玉米品种的相关性分析"
不同熟期夏玉米品种 Summer maize hybrids differing in maturities | 因子 Factor | 有效积温 EAT | 产量 Yield | 总结实率 Total seed setting rate | 收获指数 Harvest index | 全生育期天数 Total growth period | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
中早熟 Medium early maturity | 有效积温EAT | 1 | ||||||||||
产量Yield | 0.026 | 1 | ||||||||||
总结实率Total seed setting rate | -0.276 | 0.490 | 1 | |||||||||
收获指数Harvest index | 0.076 | 0.732** | 0.246 | 1 | ||||||||
全生育期天数Total growth period | -0.464 | -0.063 | 0.263 | 0.201 | 1 | |||||||
中晚熟 Medium late maturity | 有效积温EAT | 1 | ||||||||||
产量Yield | 0.889** | 1 | ||||||||||
总结实率Total seed setting rate | -0.180 | 0.013 | 1 | |||||||||
收获指数Harvest index | 0.483 | 0.526* | 0.491 | 1 | ||||||||
全生育期天数Total growth period | 0.015 | -0.102 | 0.240 | 0.458 | 1 |
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