A Cytological Study of C-Mitosis in the Polysomatic Plant Spinacia oleracea, with Comparative Observations on Allium cepa

1943 ◽  
Vol 70 (5) ◽  
pp. 457 ◽  
Author(s):  
C. A. Berger ◽  
E. R. Witkus
Author(s):  
Sheikh Javaid Hassan

The present work embodies findings of a survey done during the period 2018- 2020 to find out biodiversity of tylenchid nematodes parasitic on some mostly grown vegetables of Kashmir valley. Four species of nematodes belonging to the order Tylenchida Thorne, 1949 were found to be enormously prevalent and are described herein with alterations from the original probably because of habitat change. Spinacia oleracea (Spinach) and Allium cepa (Onion) were taken for the study. Merlinius microdorus (Geraert, 1966) Siddiqui, 1970; Boleodorus cylindricus Dhanachand, Renubala and Anandi, 1993; Pratylenchus sativus Kaul, 1985 and Helicotylenchus graminophilus Fotedar and Mahajan, 1974 were met with the varied intensity on these hosts. The morphological variations are significantly noted under remarks with the individual species under observations.


1992 ◽  
Vol 118 (2) ◽  
pp. 207-213 ◽  
Author(s):  
L. Giardini ◽  
F. Pimpini ◽  
M. Borin ◽  
G. Gianquinto

SUMMARYExperiments at the Experimental Station of the Agricultural University of Padova, Italy (45° 21′ N, 11° 58′ E) during 1985–89 evaluated poultry manure as a fertilizer. Two levels of fertilization (medium and high), using different mixtures of poultry manure and mineral fertilizers were compared with a non-fertilized control. The fertilization treatments were repeated each year on the same plots. All the crops tested responded strongly to fertilization, giving the following increases in yield (expressed as a percentage of the maximum yields): 30% for potato (Solanum tuberosum L.), 19% for sugarbeet (Beta vulgaris L. var. saccharifera L.), 82% for onion (Allium cepa L.), 85% for tomato (Lycopersicon esculentum Mill.) and 64% for spinach (Spinacia oleracea L.). The most effective fertilization formula varied with crop and year of cultivation. All the tested fertilization treatments had a similar effect on potato and onion, whereas the highest yields of tomato and spinach were obtained with a mixed fertilization at the highest rate of nutrients.


2003 ◽  
Vol 16 (1) ◽  
pp. 66-70 ◽  
Author(s):  
Irena Vovk ◽  
Breda Simonovska ◽  
Samo Andrenšek ◽  
Teijo Yrjönen ◽  
Pia Vuorela ◽  
...  

Author(s):  
Anna Campanati ◽  
Emanuela Martina ◽  
Katia Giuliodori ◽  
Giulia Ganzetti ◽  
Barbara Marconi ◽  
...  

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