@Article{phyton.2018.87.242,
AUTHOR = {Song Y, CA. Busso, Y Yu, P Wang, Wuyunna, D Zhou},
TITLE = {Regrowth, yield and nutrition of <i>Leymus chinensis</i> and <i>Hordeum brevisubulatum</i> in response to defoliation intensity and frequency},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {87},
YEAR = {2018},
NUMBER = {all},
PAGES = {242--251},
URL = {http://www.techscience.com/phyton/v87nall/33962},
ISSN = {1851-5657},
ABSTRACT = {The effects of different defoliation intensities and frequencies
were studied on regrowth and herbage mass of <i>Leymus chinensis</i>
and <i>Hordeum brevisubulatum</i> in northeast China for two years.
Plants were defoliated to 6, 8 or 10 cm stubble height by removing
about 40% of growth down to each designated defoliation height. In
the first year, <i>L. chinensis</i> was defoliated 22, 17 or 13 times, and in the
second year was defoliated 21, 15 or 15 times to reach 6, 8 or 10 cm
stubble height treatments, respectively. <i>H. brevisubulatum</i> was defoliated
26, 21 or 15 times in the first year, and 28, 23 or 21 times in the
second year to reach the 6, 8 or 10 cm stubble, respectively. <i>L. chinensis</i>
was more productive than <i>H. brevisubulatum</i>, but <i>H. brevisubulatum</i>
showed a better forage quality than <i>L. chinensis</i> because <i>H. brevisubulatum</i>
showed a higher leaf to stem ratio and crude protein concentration
than <i>L. chinensis</i>. Both species produced the highest yield, but
the lowest quality when defoliated to 10 cm stubble. There were no
significant differences in water soluble carbohydrate (WSC) concentrations
in below-ground culm and rhizome tissues between defoliation
heights, but <i>L. chinensis</i> had a higher WSC concentration than <i>H.
brevisubulatum</i>.},
DOI = {10.32604/phyton.2018.87.242}
}