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1

Impact of Smicronyx spp.[Coleoptera:Curculionidae] on fruit development of Striga hermonthica [Scrophulariaceae] a parasitic weed: an histological study and prospects for biological control

100%
Pronier I., Pare J., Vincent C., Salle G.
Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement
|
1997
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tom 39
|
nr 1
2

Resistance to herbicide [2,4-D] of Striga hermonthica [Scrophulariaceae] in relation to embryonic development

100%
Pare J.
Polish Botanical Studies
|
1994
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tom 08
3

The genus Striga [Scrophulariaceae]: taxonomy, geographical distribution. Embryological results in Striga hermonthica [Del].Benth. scourge of food crops in Tropical Africa with special reference to the action of herbicide on seed development

100%
Pare J., Raynal-Roques A.
Acta Biologica Cracoviensia. Series Botanica
|
1992-1993
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tom 34-35
The authors present results of taxonomy, ecology, biological and embryological studies (embryo and endosperm development) in Striga (Scrophulariaceae). The significance of embryo and seed structures is discussed and the results allow to evaluate embryology as a dynamic system of contributing to the resolution of an important agronomical problem in Tropical Africa.
4
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Maize-soybean intercropping system: effects on Striga control, grain yields and economic productivity at Tarka, Benue State, Nigeria

80%
Ijoyah M. O.
International Letters of Natural Sciences
|
2014
|
tom 14
On-Farm trials were conducted from July to November during the 2009 and 2010 cropping seasons, at Tarka, Benue State, Nigeria to evaluate the effects of intercropping maize and soybean on striga control, grain yields and economic productivity. The treatments consisted of sole maize, sole soybean and the intercrop of maize and soybean, replicated three times in a randomized complete block design. The results obtained showed that intercropping maize and soybean significantly (P ≤ 0.05) reduced striga shoot count by 55.9 % and 56.1 % respectively, in 2009 and 2010 compared to that produced on pure maize plots. Number of affected maize plants, lodging score of maize and infestation rate were lower for intercropping than for sole maize plots. The severity level was also recorded lower for intercropping compared to that recorded for pure maize stands, where severity level is in the range of high to very high. Though, soybean yield was reduced by intercropping, however, soybean and maize intercropping system increased maize grain yield, total intercrop yield, land equivalent coefficient greater than 0.25, land equivalent ratio values greater than one (LER > 1), higher total intercrop values and monetary equivalent ratio greater than 1.00, indicating yield and economic advantages. The implication of study showed that intercropping maize and soybean can be adopted by farmers as an efficient cropping system strategy to reduce striga infestation, increase maize yield and give greater economic productivity.
5

Plant embryology and control of Striga hermonthica [Scrophulariaceae], parasitic weed

80%
Pare J., Pronier I.
Zoologica Poloniae
|
1996
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tom 41
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nr 1-4
6

Signification et role de la region hypophysaire embryonnaire dans les phenomenes d'adaptabilite et de resistance chez Striga hermonthica [Del.] Benth., Scrophulariaceae

80%
Pare J.
Bulletin of the Polish Academy of Sciences. Biological Sciences
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1997
|
tom 45
|
nr 2-4
7

Embryological study of fruit galls of Striga hermonthica [Scrophulariaceae] induced by Smicronyx spp. [Coleoptera; Curculionidae]. Perspectives for biological control

80%
Pronier I., Pare J., Otoidobiga L. C., Catel G., Vincent C., Stewart R. K., Salle G.
Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement
|
1997
|
tom 39
|
nr 1
8

Impact of Smicronyx spp. [Coleoptera:Curculionidae] on fruit development of the parasitic weed Striga hermonthica [Scrophulariaceae]: histological study and prospects for biological control

70%
Pronier I., Pare J., Vincent C., Salle G.
Acta Biologica Cracoviensia. Series Botanica
|
1998
|
tom 40
Witchweeds, especially Striga spp. (Scrophulariaceae), have become a major pest for cereal crops in Africa. Presently there are no efficient management methods to alleviate the agronomical problem posed by witchweeds. In a multidisciplinary research program addressed to the Striga problem, we conducted histological work to study the effects of a weevil (Smicronyx spp.) on Striga seed production. The embryological development of Striga hermonthica was studied in normal (unattacked) and attacked (by Smicronyx weevils) capsules. The results on the impact of Smicronyx weevils on Striga fruit are described. Our findings should be of interest in implementing a Striga management program based on seed bank control. Seed bank management should be integrated with other control tactics to achieve a practical and agronomical impact on Striga populations.
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