Jin Hua  Zhang, Yong Kuan  Chi, Kang Ning  Xiong, Pan Di  Zhao, Yuan Su  Wang, Wen Long  Zhou, 
    Analysis and Study on Photosynthetic Physiological Characteristics of 4 Grass Species in Karst Rocky Desertification Area,
    Journal of Animal and Veterinary Advances,
    Volume 12,Issue 15,
    2013,
    Pages 1299-1306,
    ISSN 1680-5593,
    javaa.2013.1299.1306,
    (https://makhillpublications.co/view-article.php?doi=javaa.2013.1299.1306)
    Abstract: This study studies the net photosynthesis rate, transpiration 
  rate and water-use efficiency of four forage grasses as <I>Bromus cartharticus 
  </I>Vahl and <I>Festuca elata</I> ex E., <I>Dactylis glomerata</I> L. and perennial 
  <I>Lolium perenne</I> L. on fine days in Bijie Salaxi Karst rocky desertification 
  control area of Guizhou Normal University. The results showed that the average 
  daily water use efficiency ranks: (from high to low) <I>Festuca elatal</I> ex. 
  E., <I>Bromus cartharticus </I>Vahl, <I>Dactylis glomerata</I> and perennial 
  <I>Lolium perenne</I> L. In detail, the average daily photosynthetic and transpiration 
  rates of <I>Festuca elatal</I> ex E. are 6.234.53 (&#956; moL/(m<SUP>2</SUP> 
  sec)) and 6.23 (mol/(m<SUP>2</SUP> sec)), respectively which belongs to high 
  photosynthesis, high transpiration type. On the contrary, <I>Bromus cartharticus 
  </I>Vahl, <I>Dactylis glomerata</I> L. and perennial <I>Lolium perenne</I> L. 
  belong to low photosynthesis, low transpiration type. The average daily photosynthetic 
  and transpiration rates are 4.87, 4.71, 4.53 (&#956;mol/(m<SUP>2</SUP> sec)) 
  and 4.29, 4.42, 4.83 (mol/(m<SUP>2</SUP> sec)), respectively. Net photosynthesis 
  rate, transpiration rate and water use efficiency should be considered when 
  researchers plant artificial pasture in Karst rocky desertification area. Meanwhile, 
  different pasture allocation measures can not only reduce transpiration and 
  water loss but also increase water use efficiency. These measures could ease 
  the current situation of water shortage in Karst rocky desertification area. 
  Both of changing the current planting situation of single sowing grass and conducting 
  the mixture sowing between leguminous forage and herbage with high and low photosynthetic 
  rate and transpiration rate are helpful for the diversity of biological populations 
  in Karst rocky desertification area and improving the production potential of 
  herbage.
    Keywords: Karst;rocky desertfication;Poaceae;net photosynthetic rate;transpiration rate;water use efficiency;diurnal variation