Relationship between storage period and germination of Ipomoea hederacea var. integriuscula seeds under natural condition
Relationship between storage period and germination of
Ipomoea hederacea
var.
integriuscula
seeds under natural condition
复制标题
常春藤贮藏期与发芽的关系
DOI：
10.1111/wbm.12237
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发表时间：
2021
影响因子：
1.4
通讯作者：
K. Homma
中科院分区：
文献类型：
--
作者：
Hidenori Asami;G. Ishioka;K. Homma
牵牛花（Ipomoeaspp.），大豆田中的一种有问题的杂草，由于其长的出苗期而难以控制。牵牛花的间歇性萌发延缓了出苗期，其影响因素尚不清楚。因此，我们的目的是澄清在自然条件下不同的存储时间对物理休眠的全叶牵牛（Ipomoea hederaceavar.integriuscula）种子在田间发芽条件和出苗率的影响。2017- 2020年，我.常春藤。integriuscula在户外种植园中种植。每株植物都被标记在开花的花梗上以记录开花日期。我的种子。花后23 d萌发。种子的含水量迅速下降，直到30 ℃，此后没有发生吸水。在45 ~ 210 ℃的温度范围内，种子在室外袋中的发芽率较低，而在270 ℃以后，无论温度如何（20-35 ℃），种子的发芽率都有所提高。在田面上，袋藏时间越短，累计羽化率越低。hederaceavar.integriuscula. 90粒以上种子在土壤中的累计出苗率为0%。种子在土壤中的存活率随着胚囊数量的增加而增加。因此，种子发芽时间越长，田间出苗率和在土壤中的成活率越高。在母株上的长期贮藏可能是与长出苗期相关的因素之一。
Morning glory (Ipomoeaspp.), a problematic weed in soybean fields, is difficult to control due to its long emergence period. The intermittent germination of morning glory prolongs the emergence period, and the factors remain unclear. Therefore, we aimed to clarify the effects of different storage periods under natural conditions on germination conditions and emergence percentages of physically dormant entire‐leaf morning glory (Ipomoea hederaceavar.integriuscula) seeds in the field. In 2017–2020,I. hederaceavar.integriusculawas cultivated in outdoor planters. Each plant was tagged on the blooming flower peduncle to record the flowering date. The seeds ofI. hederaceavar.integriusculagerminated 23 days after flowering (DAF). The water content of the seeds decreased rapidly until 30 DAF, and no water absorption occurred thereafter. The germination percentage of seeds in bags outdoors was low from 45 to 210 DAF, and it increased after 270 DAF irrespective of the temperature (20–35°C). On the field surface, the shorter the period of storage in bags outdoors, the lower the cumulative emergence percentage ofI. hederaceavar.integriuscula. The cumulative emergence was 0% in the soil for seeds of more than 90 DAF. The survival percentage of seeds in the soil increased with the number of DAFs. Therefore, the longer the DAF of the seeds, the higher the emergence of the field and survival percentage in the soil. The long period of storage on mother plants may be one of the factors associated with the long emergence period.
大分县大豆田杂草的发生情况
DOI：
10.3719/weed.65.31
发表时间：
2020
期刊：
Journal of Weed Science and Technology
影响因子：
--
作者：
河野礼紀;柿原千代文;近乗偉夫;松尾光弘;西脇亜也
通讯作者：
西脇亜也