Authors:N. Thavaprakash, G. Senthilkumar, S. D. Sivakumar and M. Raju
Mallikarjuna, N., Devakumar, M. V., Chalapathi, M. V., Gangadhar Eswar Rao, G. 2000: Integrated phosphorus management for sunflower ( Helianthusannuus L.) in Alfisols. Crop Res. , 19 , 23-27.
Integrated phosphorus management for
Authors:S. Subbulakshmi, P. Subbian, N. Saravanan and N. Prabakaran
A field experiment was conducted during the
(October–January) seasons of 2005–2006 to study the effect of a maize — sunflower cropping system on the weed flora shift. The results revealed a change in weed species, i.e. the appearance of new species and the elimination of certain weed species due to the cropping system. The density of
was high during the 1
year maize cropping period, but
became dominant when sunflower was grown after maize.
, originally the dominant sedge, was smothered by
due to zero tillage.
was the dominant weed species in maize, while
was the dominant weed species in sunflower. The proportions of
Datura fastuosa, Parthenium hysterophorus, Trianthema portulacastrum, Amaranthus viridis, Amaranthus polygamus, Flaveria austerlagica, Gynandropsis pentaphylla
were higher during the 1
year maize cropping season, while later their density was gradually reduced due to the inclusion of sunflower in the system.
the interaction between Helianthusannuus and its obligate parasite Plasmopara halstedii shows single nucleotide polymorphisms in CRN sequences. BMC Genomics 12, 4–8.
Transcriptomic analysis of the
Field experiments were conducted at the Agricultural Research Station, Bhavanisagar, Tamil Nadu, India during 1999 to 2000 in Inceptisols to evaluate boron fertilizers (borax, boric acid, Agribor) and to assess the effect of the mode and level of B application on the total B uptake and yield of sunflower and green gram. The experimental field was found to be deficient in available B (0.35 mg kg-1). Sunflower was raised as the main crop. Different B levels (0.5, 1.0, 1.5and 2.0 kg B ha-1)as soil application and two levels of foliar spray (0.2% and 0.3%) were compared with the control. The treatments were superimposed on the recommended dose of NPK. After harvestingthe main crop of sunflower, the residual effect of B was studied by raising green gram on the same field. The results revealed that the application of all the levels of B resulted in a significant increase in the B uptake and yield of sunflower as compared to the control. The highest yield was recorded for the soil application of B at a rate of 2.0 kg ha-1. The yield increase of sunflower was 3.6 to 15.8% and 7.2 to 18.9% over the control for seed and stalk, respectively. The green gram grain yield increased by 4.2 to 13.5% after the application of 1.0 and 2.0 kg B ha-1 to the main crop. No residual effect was observed for the lowest level of B application (0.5 kg ha-1). Agribor is equally as effective as borax in influencing the B nutrition of both the crops.
Tourvieille de Labrouhe , D. , Serre , F. , Roche , S. , Walser , P. and Vear , F. ( 2008 ): Quantitative resistance to downy mildew ( Plasmopara halstedii ) in sunflower ( Helianthusannuus ) . Euphytica 164 , 433 – 444 .
Vear , F. ( 2008 ): Quantitative resistance to downy mildew (Plasmopara halstedii) in sunflower (Helianthusannuus) . Euphytica 164 , 433 – 444 .
Van der Plank , J. E. ( 1968 ): Disease Resistance in Plants . Academic Press , New York , pp
. , Le Paslier , M. C. , Bordat , A. , Boniface , M. C. , Brunel , D. , Gouzy , J. , Godiard , L. and Vincourt , P. ( 2011 ): Transcriptomic analysis of the interaction between Helianthusannuus and its obligate parasite Plasmopara
Diepenbrock, W., Pasda, G. (1995): Sunflower (Helianthusannuus L.). pp. 91-148. In: Diepenbrock, W., Becker, H. C. (eds.), Physiological Potentials for Yield Improvement of Annual Oil and Protein Crops. Blackwell Wiss. -Verl., Berlin
In this study, the pollen analyses and antimicrobial effect were conducted in honey samples, which were collected from seven localities where apiculture has intensively been practiced. Upon pollen analyses of 16 different plants have been determined. The plants contributing nectar to honey samples in Elazig were found as follows; Fabaceae: Astragalus, Trifolium, Vicia, Onobrychis; Asteraceae: Centaurea triumfettii, Carduus, Xeranthemum, Helianthus annuus; Lamiaceae: Salvia, Mentha;Rosaceae: Rubus, Prunus;Vitaceae: Vitaceae: Vitis;Apiaceae: Daucus; Zygophyllaceae: Peganum harmala; Ranunculaceae: Ranunculus. The honey sapmles have inhibited the growth of bacteria used in our work at varying degrees. None of the samples had any antifungal effect against Candida albicans FMC-17 and Saccharomycescerevisiae UAG-102