Publication Date
1985
Location
Kyoto Japan
Description
This study was conducted to compare the effect of a period of drought on leaf senescence, protein yield and P concentration in smooth bromegrass (Bromus inermis Leyss.) (Br), crested wheatgrass (Agropyron cristatum (L.) Gaertn. spp. pectinatum (Bieb.) Tzvel.) (CW g) and Altai wildrye (Leymus angustatus (Trin.) Pilger) (Awr ). Susceptibility to drought in terms of leaf water potential, senescence, and nutritive quality, was greatest in CWg, intermediate in Br, and least in A Wr. Drought induced less sencence in vegetative than in floral tillers in CW g and Br; the ability of A Wr to maintain its quality through dry summers may be due in part to a high proportion of non-floral tillers. Quality of mid-summer pastures in drought affected ares may be improved by introducing cultivars selected for a high proportion of vegetative tillers.
Citation
Bittman, S; Simpson, G M.; and Mir, Z, "Effect of Drought on Leaf Senescence and Forage Quality of Three Temperate Grasses" (1985). IGC Proceedings (1985-2023). 11.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/11)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Drought on Leaf Senescence and Forage Quality of Three Temperate Grasses
Kyoto Japan
This study was conducted to compare the effect of a period of drought on leaf senescence, protein yield and P concentration in smooth bromegrass (Bromus inermis Leyss.) (Br), crested wheatgrass (Agropyron cristatum (L.) Gaertn. spp. pectinatum (Bieb.) Tzvel.) (CW g) and Altai wildrye (Leymus angustatus (Trin.) Pilger) (Awr ). Susceptibility to drought in terms of leaf water potential, senescence, and nutritive quality, was greatest in CWg, intermediate in Br, and least in A Wr. Drought induced less sencence in vegetative than in floral tillers in CW g and Br; the ability of A Wr to maintain its quality through dry summers may be due in part to a high proportion of non-floral tillers. Quality of mid-summer pastures in drought affected ares may be improved by introducing cultivars selected for a high proportion of vegetative tillers.
