| Effects of alginate and fulvic acid modified gypsum on maize root morphological traits and plant growth |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2023.06.15 |
| Key Words: corn biostimulant synergist sulfur root growth yield |
| Author Name | Affiliation | | GUO Hongyun | College of Agronomy, Anhui Agricultural University, Hefei, Anhui 230036, China | | ZHANG Kedi | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | SHAO Na | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | YAN Kang | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | YANG Yang | Engineering Laboratory of Environmentally Friendly and High Performance Fertilizer and Pesticide of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China | | ZHAO Yang | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | CAI Ronghao | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | CHENG Beijiu | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | LI Na | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China | | MA Qing | National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China |
|
| Hits: 420 |
| Download times: 401 |
| Abstract: |
| In order to reveal the effects of alginate and fulvic acid modified gypsum (AFG) on maize (Zea mays L.) root morphological traits and plant growth as well as assess the application potential of AFG in maize production, a field experiment was conducted during the maize growing season in 2022. The experiment included six treatments, with AFG application rate as 0 (T0), 20 (T20), 40 (T40), 60 (T60), 80 kg·hm-2 (T80), and 100 kg·hm-2 (T100), respectively. The effects of AFG application on maize root morphological traits and yield were analyzed. The results showed that compared with the T0 treatment, AFG application significantly increased soil available sulfur concentration and regulated maize root morphological traits. For example, root total length, root surface area, root average diameter, number of root tips, root volume, and root dry weight were 7.6%~18.2%, 14.0%~31.2%, 5.1%~11.0%, 11.6%~17.9%, 20.9%~45.7% and 7.8%~18.7% greater in the AFG\|applied treatments than in the T0 treatment. Among the five AFG\|applied treatments, the best root morphological traits were observed in the T40 treatment while further increase of AFG application rate tended to reduce the regulation effects. Grain yield was 2.6%~8.9% greater in the AFG\|applied treatments than in the T0 treatment, with the greatest grain yield observed in the T40 treatment. Grain yield was significantly correlated with number of root tips, root surface area, root volume, root total length, root\|shoot ratio, root dry weight, and root average diameter. Root dry weight, root\|shoot ratio, root total length, and number of root tips were the top four root traits that greatly affect grain yield. Overall, under reasonable application rates, AFG improved maize root morphological traits and enhance maize productivity. |
|
|
|