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Details van artikel 160 van 183 gevonden artikelen
| Titel: |
Soil moisture levels and mycorrhizal infection in black walnut seedlings |
| Auteur: |
Ponder, Filex |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 14 (1983) nr. 6 pagina's 507-511 |
| Jaar: |
1983-06 |
| Inhoud: |
The influence of soil moisture on endomycorrhizal infection in black walnut was studied using four groups of potted seedlings watered at different time intervals. Seedlings watered every day or every second day had much longer lateral roots but fewer infected root segments than seedlings watered every third or fourth day. These results suggest that controlling the soil moisture level may alter the conditions that affect competition for colonization between introduced and indigenous mycorrhizal fungi. When outplanted, nursery-grown black walnut (Juglans nigra L.) seedlings have to contend with various soil conditions of which moisture is probably the most variable. Colonization of roots by mycorrhizal fungi is a common occurrence in most soils. However, fungi generally show differences in their growth responses to soil moisture4. Pattulo and Marshall6, working with ectomycorrhizal plants, observed an increase in mycorrhizal formation with decreasing availability of soil water. Bowen and Theodorou2 reported that some mycorrhizal fungi can grow at a relative humidity well below the wilting point for pine. The spore and other resting stages of fungi aid them In adapting to changing environmental conditions. The fate of specific mycorrhizae on planted seedlings may depend on how well the mycorrhizae can adapt to the new soil environment. The purpose of this study was to observe the effects of moisture supply on mycorrhizal infection in potted black walnut seedlings. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 160 van 183 gevonden artikelen
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