张艺璇, 谭静, 管俊娇, 奎丽梅, 胡茂林, 程卯, 张婷, 殷长生, 谷安宇, 李小林. 两种水稻种子处理悬浮剂对旱直播水稻生长的影响[J]. 农药学学报, 2023, 25(2): 395-405. DOI: 10.16801/j.issn.1008-7303.2023.0009
    引用本文: 张艺璇, 谭静, 管俊娇, 奎丽梅, 胡茂林, 程卯, 张婷, 殷长生, 谷安宇, 李小林. 两种水稻种子处理悬浮剂对旱直播水稻生长的影响[J]. 农药学学报, 2023, 25(2): 395-405. DOI: 10.16801/j.issn.1008-7303.2023.0009
    ZHANG Yixuan, TAN Jing, GUAN Junjiao, KUI Limei, HU Maolin, CHENG Mao, ZHANG Ting, YIN Changsheng, GU Anyu, LI Xiaolin. Effect of two rice seed treatment suspensions on the growth of rice in dry land cultivation[J]. Chinese Journal of Pesticide Science, 2023, 25(2): 395-405. DOI: 10.16801/j.issn.1008-7303.2023.0009
    Citation: ZHANG Yixuan, TAN Jing, GUAN Junjiao, KUI Limei, HU Maolin, CHENG Mao, ZHANG Ting, YIN Changsheng, GU Anyu, LI Xiaolin. Effect of two rice seed treatment suspensions on the growth of rice in dry land cultivation[J]. Chinese Journal of Pesticide Science, 2023, 25(2): 395-405. DOI: 10.16801/j.issn.1008-7303.2023.0009

    两种水稻种子处理悬浮剂对旱直播水稻生长的影响

    Effect of two rice seed treatment suspensions on the growth of rice in dry land cultivation

    • 摘要: 为了探究水稻种子处理悬浮剂 (FS) 对旱直播水稻生长的影响,本研究采用11%的氟唑环菌胺 • 咯菌腈 • 精甲霜灵FS和18%的噻虫胺FS对三系籼型杂交稻广8优1973进行包衣,通过标准发芽试验、Q2测定、田间农艺性状调查、考种及测产,比较研究了两种FS在旱直播条件下对种子活力、水稻田间农艺性状及产量的影响。结果表明:在实验室条件下,采用11%氟唑环菌胺 • 咯菌腈 • 精甲霜灵FS和18%噻虫胺FS以药浆体积与种子质量比(药种比)为1 : 50的比例 (即1 mL药剂处理50 g种子)将药剂稀释后进行拌种,处理后的标准发芽势、发芽率及萌发启动时间 (IMT) 均与对照无显著差异,但其理论萌发时间 (RGT) 相较于空白对照(CK)显著缩短,且氧气消耗速率 (OMR) 相较于CK每小时分别提高了1.33%和1.38%,呈显著性差异,说明经过FS处理的种子可以促进水稻种子呼吸,能够有效提升水稻种子活力,其中经过18%噻虫胺FS处理的水稻种子IMT、RGT及OMR值的表现均优于11%氟唑环菌胺 • 咯菌腈 • 精甲霜灵FS处理;在旱直播条件下,水稻种子按药种比1 : 50经过两种FS处理后,其田间表现均优于CK,其中:成秧率提升27.60%~33.20%,80 d时水稻基蘖数每公顷增加71.14~97.82万个,株高增高4.90~6.80 cm,千粒重增加7.27%~9.09%,有效穗数每公顷增加9.45~13.42 万穗,单位面积产量分别提高了529.85 kg/hm2和580.70 kg/hm2,且均具有显著性差异。本研究结果表明:采用11%氟唑环菌胺 • 咯菌腈 • 精甲霜灵FS和18%噻虫胺FS按药种比1 : 50对水稻种子进行包衣能够有效促进水稻种子呼吸,提升旱直播水稻在田间的表现和产量。

       

      Abstract: In order to explore the effect of rice seed treatment suspension (FS) on the growth of rice in dry land cultivation. In this paper, two seed treatment suspensions, i.e., sedaxane + pylocyanonitrile + metalaxyl 11% FS and clothianidin 18% FS were selected to treat rice seed (guang8you 1973). The effect of FS was assessed by standard germination, Q2 test, agronomic traits and yield. The results showed that: under laboratory conditions, germination vigor, germination percentage and increased metabolism time (IMT) of two FS with the 1 : 50 treatment (1 mL of agent is required to process 50 g of seeds, referred to as the ratio of FS to seed) had no significant effect on these parameter compare with the blank control under laboratory condition. However, the FS with the 1 : 50 treatment showed a shorter relative germination time (RGT), a higher starting metabolism rate (SMR), and the oxygen metabolism rate (OMR) was significantly higher than that of the blank control by 1.33% and 1.38% per hour, respectively. This results indicate that FS can improve seed respiration and seed vigor. The comparison between the two FS indicate that the clothianidin 18% FS had a better effect on seed vigor than the sedaxane + pylocyanonitrile + metalaxyl 11% FS under the field condition. The field performance was better than that of the blank control, among which the seedling rate of seed coating-agent treatment increased by 27.60%-33.20% compared with CK, the number of tillers increased by 71.14-97.82 per hectare, the plant height increased by 4.90-6.80 cm, the thousand-grain weight increased by 7.27%-9.09%, the effective panicle increased by 9.45-13.42 million panicles per hectare, and the actual yield increased by 529.85 kg/hm2 and 580.70 kg/hm2, and there were significant differences between them. The results showed that: coating rice seeds with sedaxane + pylocyanonitrile + metalaxyl 11% FS and clothianidin 18% FS at a seed ratio of 1 : 50 can effectively promote rice seed respiration, improve the performance and yield in dry land cultivation.

       

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