浙江农业学报 ›› 2023, Vol. 35 ›› Issue (10): 2275-2285.DOI: 10.3969/j.issn.1004-1524.20221487
耿兵婕1(), 叶苗苗1, 陈研1, 王孟昌1, 马尚宇1,2,*(
), 黄正来1,2, 张文静1, 樊永惠1
收稿日期:
2022-10-25
出版日期:
2023-10-25
发布日期:
2023-10-31
作者简介:
耿兵婕(1998—),女,河南焦作人,硕士研究生,研究方向为小麦高产优质栽培理论与技术。E-mail: G306000@163.com
通讯作者:
*马尚宇,E-mail: 基金资助:
GENG Bingjie1(), YE Miaomiao1, CHEN Yan1, WANG Mengchang1, MA Shangyu1,2,*(
), HUANG Zhenglai1,2, ZHANG Wenjing1, FAN Yonghui1
Received:
2022-10-25
Online:
2023-10-25
Published:
2023-10-31
摘要:
为研究不同外源修复物质对受渍小麦根系生长发育的影响,以扬麦18为材料,在开花期设置渍水9 d(W9)和正常灌溉(W0)处理,两处理分别叶面喷施蒸馏水(T0)、0.01 mmol·L-1 6-BA(T1)、0.3% KH2PO4(T2)、0.01 mmol·L-1 6-BA和0.3% KH2PO4复配溶液(T3),研究不同外源物质对小麦根系抗氧化酶和无氧呼吸酶活性的影响。结果表明,W0条件下,喷施0.3% KH2PO4和0.01 mmol·L 6-BA可以改善根系中超氧化物歧化酶(SOD)、过氧化物酶(POD)、乙醇脱氢酶(ADH)活性,提高小麦千粒重,进而提高产量;W9处理中,小麦0~60 cm土层根系中SOD、ADH、乳酸脱氢酶(LDH)活性均有不同程度降低,而POD活性、丙二醛(MDA)含量显著提高,而喷施0.3% KH2PO4和0.01 mmol·L 6-BA显著提高了各土层根系SOD、ADH、LDH活性,降低POD活性和MDA含量,其中,喷施0.01 mmol·L-1 6-BA和0.3% KH2PO4复配剂显著提高了小麦根系抗氧化能力和无氧呼吸能力,其成熟期千粒重和产量分别比渍水处理提高23.34%、37.43%。
中图分类号:
耿兵婕, 叶苗苗, 陈研, 王孟昌, 马尚宇, 黄正来, 张文静, 樊永惠. 外源6-BA和KH2PO4对花后受渍小麦根系抗氧化酶和无氧呼吸酶活性的影响[J]. 浙江农业学报, 2023, 35(10): 2275-2285.
GENG Bingjie, YE Miaomiao, CHEN Yan, WANG Mengchang, MA Shangyu, HUANG Zhenglai, ZHANG Wenjing, FAN Yonghui. Effects of exogenous 6-BA and KH2PO4 on antioxidant enzymes and anaerobic respiratory enzymes activities in wheat roots under waterlogging at post-flowering stage[J]. Acta Agriculturae Zhejiangensis, 2023, 35(10): 2275-2285.
图1 2020年11月至2021年5月试验基地月降水量和月平均气温 11月、12月为2020年;1、2、3、4、5月为2021年。
Fig.1 Monthly precipitation and temperature at the experiment site from November 2020 to May 2021 November and December were in 2020; January, February, March, April and May were in 2021.
图2 不同处理条件下小麦根系SOD活性 数据以鲜重计。柱上无相同小写字母表示差异显著(P<0.05)。下同。
Fig.2 SOD activity of wheat roots under different treatments Data was detected based on fresh weight. Data marked without the same lowercase letter indicated significant differences at P<0.05. The same as below.
处理 | 每管穗数 | 穗粒数 | 千粒重 | 每管产量 | 产量修复率 |
---|---|---|---|---|---|
Treatment | Ear number per pipe | Grains per spike | 1 000-grain weight/g | Yield per pipe/g | Yield recovery rate/% |
W0T0 | 9.55 a | 47.54 a | 35.84 c | 13.51 b | — |
W0T1 | 9.61 a | 49.09 a | 41.86 b | 16.39 a | — |
W0T2 | 9.50 a | 47.70 a | 42.92 ab | 16.14 a | — |
W0T3 | 9.25 a | 48.71 a | 44.68 a | 16.71 a | — |
W9T0 | 9.75 a | 44.72 a | 27.94 c | 9.27 c | — |
W9T1 | 9.50 a | 43.29 a | 33.31 b | 11.70 b | 26.21 |
W9T2 | 9.53 a | 44.68 a | 32.62 b | 11.89 b | 28.26 |
W9T3 | 9.25 a | 45.30 a | 34.46 a | 12.74 a | 37.43 |
表1 不同处理条件下小麦产量及其构成因素
Table 1 Yield and yield components of wheat under different treatments
处理 | 每管穗数 | 穗粒数 | 千粒重 | 每管产量 | 产量修复率 |
---|---|---|---|---|---|
Treatment | Ear number per pipe | Grains per spike | 1 000-grain weight/g | Yield per pipe/g | Yield recovery rate/% |
W0T0 | 9.55 a | 47.54 a | 35.84 c | 13.51 b | — |
W0T1 | 9.61 a | 49.09 a | 41.86 b | 16.39 a | — |
W0T2 | 9.50 a | 47.70 a | 42.92 ab | 16.14 a | — |
W0T3 | 9.25 a | 48.71 a | 44.68 a | 16.71 a | — |
W9T0 | 9.75 a | 44.72 a | 27.94 c | 9.27 c | — |
W9T1 | 9.50 a | 43.29 a | 33.31 b | 11.70 b | 26.21 |
W9T2 | 9.53 a | 44.68 a | 32.62 b | 11.89 b | 28.26 |
W9T3 | 9.25 a | 45.30 a | 34.46 a | 12.74 a | 37.43 |
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