Taxonomic placement of Phytophthora species isolated from Angelica keiskei in the Izu Islands during the cool season

2021 ◽  
Vol 87 (4) ◽  
pp. 231-238
Author(s):  
A. SAKAMOTO ◽  
S. UZUHASHI ◽  
H. KITO ◽  
H. HOSHI ◽  
M. KUBOTA ◽  
...  
Keyword(s):  
Cool Season ◽  
Angelica Keiskei ◽  
Izu Islands

Forage-Based Heifer Development Program for North Florida

EDIS ◽  
2018 ◽  
Vol 2018 (5) ◽  
Author(s):  
Jose C.B. Dubeux ◽  
Nicolas DiLorenzo ◽  
Kalyn Waters ◽  
Jane C. Griffin
Keyword(s):  
Development Program ◽  
Warm Season ◽  
Beef Cows ◽  
Good News ◽  
Cool Season ◽  
Beef Industry ◽  
Performance Targets ◽  
Grazing Systems ◽  
Heifer Development ◽  
Reducing Costs

Florida has 915,000 beef cows and 125,000 replacement heifers (USDA, 2016). Developing these heifers so that they can become productive females in the cow herd is a tremendous investment in a cow/calf operation, an investment that takes several years to make a return. The good news is that there are options to develop heifers on forage-based programs with the possibility of reducing costs while simultaneously meeting performance targets required by the beef industry. Mild winters in Florida allows utilization of cool-season forages that can significantly enhance the performance of grazing heifers. During the warm-season, integration of forage legumes into grazing systems will provide additional nutrients to meet the performance required to develop a replacement heifer to become pregnant and enter the mature cow herd. In this document, we will propose a model for replacement heifer development, based on forage research performed in trials at the NFREC Marianna.   

Genetic variation for rate of establishment in caucasian clover

1998 ◽  
pp. 213-217
Author(s):  
K.H. Widdup ◽  
T.L. Knight ◽  
C.J. Waters
Keyword(s):  
Genetic Variation ◽  
Root Growth ◽  
Seedling Growth ◽  
White Clover ◽  
Seedling Emergence ◽  
Red Clover ◽  
Dry Weight ◽  
Cool Season ◽  
Trifolium Ambiguum ◽  
Root Dry Weight

Slow establishment of caucasian clover (Trifolium ambiguum L.) is hindering the use of this legume in pasture mixtures. Improved genetic material is one strategy of correcting the problem. Newly harvested seed of hexaploid caucasian clover germplasm covering a range of origins, together with white and red clover and lucerne, were sown in 1 m rows in a Wakanui soil at Lincoln in November 1995. After 21 days, the caucasian clover material as a group had similar numbers of emerged seedlings as white clover and lucerne, but was inferior to red clover. There was wide variation among caucasian clover lines (48-70% seedling emergence), with the cool-season selection from cv. Monaro ranked the highest. Recurrent selection at low temperatures could be used to select material with improved rates of seedling emergence. Red clover and lucerne seedlings produced significantly greater shoot and root dry weight than caucasian and white clover seedlings. Initially, caucasian clover seedlings partitioned 1:1 shoot to root dry weight compared with 3:1 for white clover. After 2 months, caucasian clover seedlings had similar shoot growth but 3 times the root growth of white clover. Between 2 and 5 months, caucasian clover partitioned more to root and rhizome growth, resulting in a 0.3:1 shoot:root ratio compared with 2:1 for white clover. Both clover species had similar total dry weight after 5 months. Unhindered root/ rhizome devel-opment is very important to hasten the establishment phase of caucasian clover. The caucasian clover lines KZ3 and cool-season, both selections from Monaro, developed seedlings with greater shoot and root growth than cv. Monaro. KZ3 continued to produce greater root growth after 5 months, indicating the genetic potential for improvement in seedling growth rate. Different pasture estab-lishment techniques are proposed that take account of the seedling growth characteristics of caucasian clover. Keywords: establishment, genetic variation, growth, seedling emergence, Trifolium ambiguum

Comparative study on the different extractions of chalcone from the angelica keiskei

2014 ◽  
Author(s):  
Xinhua Chen ◽  
Hongzhen Ning ◽  
Qian Wang ◽  
Yingli Liu ◽  
Nan Liu ◽  
...  
Keyword(s):  
Comparative Study ◽  
Angelica Keiskei

Carbon Isotope Dicrimination: Potential in Screening Cool-Season Grasses for Water-Limited Environments

Crop Science ◽  
1990 ◽  
Vol 30 (2) ◽  
pp. 338 ◽  
Author(s):  
Douglas A. Johnson ◽  
Kay H. Asay ◽  
Larry L. Tieszen ◽  
James R. Ehleringer ◽  
Paul G. Jefferson
Keyword(s):  
Carbon Isotope ◽  
Cool Season

Establishment of Cicer Milkvetch with Four Cool‐Season Grasses 1

Crop Science ◽  
1987 ◽  
Vol 27 (4) ◽  
pp. 810-812 ◽  
Author(s):  
H. Kenno ◽  
M. A. Brick ◽  
C. E. Townsend
Keyword(s):  
Cool Season

Stability and Yield of Cool-Season Pasture Grass Species Grown at Five Irrigation Levels

Crop Science ◽  
2002 ◽  
Vol 42 (3) ◽  
pp. 890 ◽  
Author(s):  
Blair L. Waldron ◽  
Kay H. Asay ◽  
Kevin B. Jensen
Keyword(s):  
Grass Species ◽  
Cool Season ◽  
Pasture Grass ◽  
Irrigation Levels
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