Historical change and drivers of insect pest abundances in red clover seed production

2016 ◽  
Vol 233 ◽  
pp. 318-324 ◽  
Author(s):  
Ola Lundin ◽  
Maj Rundlöf ◽  
Henrik G. Smith ◽  
Riccardo Bommarco
Keyword(s):  
Seed Production ◽  
Insect Pest ◽  
Red Clover ◽  
Historical Change ◽  
Clover Seed

INFLUENCE DES CULTIVARS ET DES STADES DE PRÉLÈVEMENT DE LA PREMIÈRE POUSSE SUR LA PRODUCTION DE SEMENCE DE TRÈFLE ROUGE

1990 ◽  
Vol 70 (4) ◽  
pp. 1071-1080 ◽  
Author(s):  
LUCIUS BELZILE
Keyword(s):  
Seed Germination ◽  
Seed Production ◽  
Seed Yield ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Kernel Weight ◽  
Climatic Conditions ◽  
Cultivar Group ◽  
Stage Of Development ◽  
Clover Seed

For five years, the effect of cultivars and vegetative stage of cutting were measured on red clover (Trifolium pratense L.) seed production. The first group of cultivars included Hungaropoli, Ottawa and Lakeland harvested in 1981 and 1982. The second group included Arlington, Florex and Prosper I harvested in 1984, 1985 and 1987. The total annual seed yield differed within cultivars and the highest seed yield was obtained with Hungaropoly and Florex. In the first cultivar group, the tetraploid Hungaropoly obtained a kernel weight higher than the diploids Lakeland and Ottawa. In the second group of cultivars, all diploids, Arlington yielded the highest kernel weight. The percentage of seed germination of Hungaropoly was higher than Lakeland and Ottawa while for Florex it was slightly higher than Arlington and Prosper I. A prior vegetative cutting is essential for good seed yield. In the absence of vegetative cutting seed weight seemed improved. The stage of development at which vegetative cutting is done has little influence on percentage seed germination. These results have shown that despite the strong effect of climatic conditions on seed production, the choice of the optimum stage for vegetative cutting and a well adapted cultivar are important aspects in successful seed production.Key words: Red clover, seed production, cultivar, stage of cutting

scholarly journals Researches on the Main Characteristics of Red Clover Seedlings and their Influence in

2012 ◽  
Vol 69 (1) ◽  
Author(s):  
Marioara GREBENIȘAN ◽  
Doru PAMFIL ◽  
Dorottya Alice DOMOKOS
Keyword(s):  
Plant Breeding ◽  
Seed Production ◽  
Red Clover ◽  
Production Level ◽  
Seed Crop ◽  
Binding Process ◽  
Lower Variability ◽  
Clover Seed ◽  
Number Of Seeds

Concerning the red clover breeding, it is essential to choose as genitors those varieties that possess good characteristics. In order to identify potential genitors, two red clover varieties were studied at Cluj-Napoca: Roxana, diploid variety and Napoca-tetra, tetraploid variety. The analyzed traits comprised the number of capitula/plant, number of seeds/capitulum and the binding process, under the aspect of their contribution to the seed crop and the interaction between those components, in order to provide important clues about di-and tetraploid red clover seed production, for plant breeding. The highest variability (s%=30) presented regarding the number of flowers/capitulum, diploid variety comparatively with a lower variability (s%=26) regarding the number of flowers number/capitulum, tetraploid varieties. Several traits were compared between di-and tetraploid red clover varieties in order to find genitors which can be used for creating new genotypes with high seed production level.

Effet des types de sol sur la production de semence du trèfle rouge

1991 ◽  
Vol 71 (4) ◽  
pp. 1039-1046 ◽  
Author(s):  
Lucius Belzile
Keyword(s):  
Seed Production ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Climatic Conditions ◽  
Thousand Grain Weight ◽  
Light Soil ◽  
Different Types ◽  
Percent Germination ◽  
Trifolium Pratense L ◽  
Clover Seed

Red clover (Trifolium pratense L.) was grown for seed production after the seeding year on two different types of soils, in the same climatic area. An important difference in yield which was often related to cultivar and sometimes to year was observed between the two soils — the light soil, Saint-André gravelly loam, produced more seed than the heavy Kamouraska clay. Seed yield differed between cultivars with Florex and Arlington producing the most. On an annual basis, the thousand-grain weight was higher on Kamouraska than on Saint-André. The percent germination was not influenced by soil type and cultivar but variation between years was observed. The production of heads per plant was higher on Saint-André. The number of seeds produced per plant and per head was, as for yield, higher on Saint-André than Kamouraska. The influence of cultivars and years was not always visible on these last parameters. Therefore these results demonstrate that generally the success of red clover seed production depends not only on cultivar and climatic conditions, but that within the same climatic area the type of soil is a major factor. Key words: Red clover, seed production, soil effect, year of harvest, cultivar, yield components

THE CLOVER-SEED FLY—A NEW INSECT PEST

1879 ◽  
Vol 11 (3) ◽  
pp. 44-45 ◽  
Author(s):  
J. A. Lintner
Keyword(s):  
Trifolium Pratense ◽  
Insect Pest ◽  
Red Clover ◽  
Clover Seed

In the summer of 1877, my attention was called to some “worms” which had been discovered in the heads of red clover (Trifolium pratense), and were said to be preying upon the seeds. They were found to be minute maggot-like creatures, hidden within the seed-pods and entirely destroying the seeds which they attacked.

scholarly journals Red-clover seed production : pollination studies /

1915 ◽  
Author(s):  
J. M. Westgate ◽  
H. S. Coe ◽  
A. T. Wiancko
Keyword(s):  
Seed Production ◽  
Red Clover ◽  
Clover Seed

scholarly journals Foliar fertilization with phosphorus and potassium in red clover seed production on an acidic soil

2020 ◽  
Vol 25 (49) ◽  
pp. 51-57
Author(s):  
Dalibor Tomić ◽  
Vladeta Stevović ◽  
Aleksandar Simić ◽  
Dragan Đurović ◽  
Mirjana Radovanović ◽  
...  
Keyword(s):  
Seed Production ◽  
Red Clover ◽  
Acidic Soil ◽  
Foliar Fertilization ◽  
Phosphorus And Potassium ◽  
Clover Seed
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