Effect of soil moisture stress on yield, nodulation and nitrogenase activity ofMacroptilium atropurpureum cv. Siratro andDesmodium intortum cv. Greenleaf

Nodulation and effective nitrogen fixation of Macroptilium atropurpureum (siratro) by Burkholderia tuberum, a nodulating and plant growth promoting beta-proteobacterium, are influenced by environmental factors

“…These higher temperatures may be closer to the conditions encountered in the wild by the South African hosts and this legume. Siratro normally grows in moist, subtropical to tropical regions, but numerous studies have demonstrated that it is much more tolerant of dryness than other legumes or various grass species (Ahmed and Quilt 1980;Sheriff and Ludlow 1984;Ohashi et al 2000). Siratro survives drought because of its long taproot, which reaches distant water sources (Sheriff and Ludlow 1984).…”

Studies on the effect of salinity, drought stress and soil type on nodule activities of Lablab purpureus (L.) sweet (Kashrangeeg)

“…However, moisture stress had little or no effect on the nodulation and nitrogen fixation of some tropical legumes, e.g. Desmodium nitrotum (Ahmed & Quilt, 1980;Ismaili et al, 1983). Also, Felker & Clarck (1982) reported that Prosopis glandulosa was able to form N 2 -fixing nodules at a leaf water potential of 3?3 MPa.…”