scholarly journals Effect of cutting on growth and seed production of Rumex obtusifolius L. and Rumex crispus L. in eastern Hokkaido. I. Cutting at different maturing stages and different heights with respect to transplanted plants.

1988 ◽  
Vol 33 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Akio HONGO
Keyword(s):  
Seed Production ◽  
Rumex Crispus ◽  
Rumex Obtusifolius

Damage to Rumex crispus L. and Rumex obtusifolius L. caused by the rust fungus Uromyces rumicis (Schum.) Wint.

Weed Research ◽  
1986 ◽  
Vol 26 (5) ◽  
pp. 347-350 ◽  
Author(s):  
F. X. SCHUBIGER ◽  
G. DEFAGO ◽  
H. KERN and ◽  
L. SEDLAR
Keyword(s):  
Rust Fungus ◽  
Rumex Crispus ◽  
Rumex Obtusifolius

Germination Polymorphism in Rumex Crispus and Rumex Obtusifolius

1966 ◽  
Vol 54 (2) ◽  
pp. 367 ◽  
Author(s):  
P. B. Cavers ◽  
J. L. Harper
Keyword(s):  
Rumex Crispus ◽  
Rumex Obtusifolius

Seed production and dormancy in Rumex crispus. II. The effects of removal of various proportions of flowers at anthesis

1971 ◽  
Vol 49 (10) ◽  
pp. 1841-1848 ◽  
Author(s):  
M. A. Maun ◽  
P. B. Cavers
Keyword(s):  
Seed Production ◽  
Seed Weight ◽  
Total Yield ◽  
Lower Portion ◽  
Rumex Crispus ◽  
Individual Seed ◽  
The Mean ◽  
Seeds And Fruits

Systematic removal of 25, 50, and 75% of the flower whorls from panicles of Rumex crispus L. (curled dock) reduced the total yield per panicle of seeds and fruits in comparison to control plants. However, the mean weight per seed was progressively higher as a greater proportion of the whorls was removed.For untreated plants, seeds borne toward the tips of branches were always lighter than those found near the junctions of branches with the main rachis. Seeds from the lower portion of the panicle were generally larger than those from the upper branches. On treated plants individual seed weight became less variable over the whole panicle.Although seeds from all treatments were equally viable, the larger seeds from treated plants exhibited a greater amount of dormancy under several germination regimes. This increased dormancy might be attributed to the thicker investing structures of larger seeds.

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