TY  - JOUR
T1  - Analysis and Study on Photosynthetic Physiological Characteristics of 4 Grass Species in Karst Rocky Desertification Area
AU - Zhang, Jin Hua AU - Chi, Yong Kuan AU - Xiong, Kang Ning AU - Zhao, Pan Di AU - Wang, Yuan Su AU - Zhou, Wen Long 
JO  - Journal of Animal and Veterinary Advances
VL  - 12
IS  - 15
SP  - 1299
EP  - 1306
PY  - 2013
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2013.1299.1306
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2013.1299.1306
KW  - Karst
KW  -rocky desertfication
KW  -Poaceae
KW  -net photosynthetic rate
KW  -transpiration rate
KW  -water use efficiency
KW  -diurnal variation
AB  - 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.
ER  -