GROWTH AND OIL YIELD PARAMETERS OF THE Capsicum annuum VAR aviculare ASSOCIATED TO THE BENEFICIAL BACTERIUM Bacillus amyloliquefaciens AND Azospirillum halopraeferens UNDER FIELD CONDITIONS

Biotecnia ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 59-64
Author(s):  
José Luis García Hernández ◽  
María Cristina Ruíz Alvarado ◽  
Pablo Preciado Rangel ◽  
Alejandra Nieto-Garibay ◽  
Bernardo Murillo-Amador ◽  
...  

Capsicum annuum var. aviculare is one of the most extremely hot chilies, measuring between 50,000 and 100,000 Scoville Units. In the present work we studied the growth and development of chiltepin (Mazocahui), under field conditions, inoculated with previously selected and cultivated native strains of Bacillus amyloliquefaciens and Azospirillum halopraeferens. The seed was inoculated by the vacuum technique, and later at 34, 120, 180 and 210 days after germination. A drip irrigation system with a salinity (TDS) = 0.8 ppt was used. The results show that germination is significantly favored by the promoter effect caused by the beneficial bacteria. These inoculants increased some parameters of growth and development. We found significant differences regarding the control for the total weight and length of root and stem of the plants, as well as the total content of proteins, and in some parts of the plant analyzed as stem and leaf. Both bacteria increased fruit yield in the Mazocahui genotype. Our findings suggest that the application of strains of Bacillus amyloliquefaciens and Azospirillum halopraeferens, influence the increase in yield of Capsicum annuum var. aviculare, under field conditions. In addition, the data show the usefulness of the inoculation of chiltepin seed for agricultural producers in semi-arid areas where salinity is a problem.

2004 ◽  
Vol 44 (1) ◽  
pp. 65 ◽  
Author(s):  
E. O. Rueda-Puente ◽  
T. Castellanos ◽  
E. Troyo-Diéguez ◽  
J. L. Díaz de León-Alvarez

Growth and development of 2 pickleweed (Salicornia bigelovii Torr.) genotypes, a local wild type and cultivar, SOS-10, were studied under field conditions. When inoculated with the previously selected and cultivated native strains of Klebsiella pneumoniae and Azospirillum halopraeferens, the 2 pickleweed genotypes exhibited increases in some of the growth and development parameters measured, such as weight, plant length and biochemical characteristics, including total protein, ash and total lipid content in selected plant parts. Our findings suggest that yields of both genotypes of S. bigelovii, under field conditions, can be enhanced by the application of K. pneumoniae or A. halopraeferens strains. The potential usefulness of S. bigelovii for agricultural producers in coastal semi-arid zones has been shown elsewhere; our findings suggest that the establishment and growth of this halophyte can be experimentally improved using beneficial bacteria as auxiliary biofertilisers.


Rhizosphere ◽  
2021 ◽  
pp. 100347
Author(s):  
Rafaela Cristina dos Santos ◽  
Mohamed Fokar ◽  
Emiliana Manesco Romagnoli ◽  
Mina Aziz ◽  
José Mauricio S. Bento ◽  
...  

Author(s):  
A. N. Babichev ◽  
◽  
A. A. Babenko ◽  

Purpose: to analyze the experience of Russian scientists in the field of application of a differentiated approach to agricultural crops irrigation. The overview of research work of domestic scientists on the use of an irrigation system in agriculture, in which the provision of agricultural crops with water to maintain a given level of the minimum water capacity will be carried out during the most critical periods of their growth and development is presented. During irrigation, the timing, frequency, irrigation rates depend on the level of groundwater occurrence, agrochemical properties of soils, weather and climatic conditions, phases of growth and development of crops. The application of a differentiated irrigation regime to maintain a given level of pre-irrigation moisture allows increasing the productivity of agricultural crops, the quality of products obtained while reducing irrigation and watering rates, the number of waterings. Conclusions. The study of the results of research work of domestic scientists in the field of influence of irrigation and the fertilization system on the yield and quality of agricultural products allows concluding that obtaining the planned yields is possible only if irrigation regimes are observed and the level of soil fertility is maintained by applying various fertilizers. The use of a differentiated approach to irrigation while maintaining a given level of pre-irrigation soil moisture during critical periods of crop development allows reducing irrigation water consumption and optimizing irrigation rates and their quantity. The study of a differentiated irrigation regime is promising now and in the near future, taking into account the deteriorating water supply in the territory of our country, associated with a change in weather and climatic conditions.


2013 ◽  
Vol 37 (2) ◽  
pp. 169-177
Author(s):  
Renata Ciszewska ◽  
Anna Sykut ◽  
Jadwiga Szynal

The content of pectic substances (soluble pectins and fraction of protopectins) and calcium (free and bound) in field pea (<i>Pisum arvense</i> L.) leaves and stems during budding and flowering in field conditions was determined. In this experiment Gesagard 50 (S. A. - 50% prometryne) was applied to the soil in a weed control dose (2 kg/ha). An insignificant decrease of the content of protopectins and total pectins in leaves of the investigated plants (about 3-7% in relation to control) after application of this herbicide was noted, hut analogous changes in all years of the experiment were not observed in field pea stems. The influence of prometryne on the distribution of pectic substances in above-ground parts of the field pea and the degree of protopectins methylation were not corroborated. Neither did the total calcium content in the investigated plants change after application ofthe herbicide. These results show that application of Gesagard 50 in a weed control dose (2 kg/ha) in cultivation of field pea does not evoke changes in the investigated components content which might be of significance in the growth and development of plant cells and immunity reactions of plants.


2018 ◽  
Vol 7 (18) ◽  
Author(s):  
Matthew J. Meier ◽  
Annette Dodge ◽  
Lee A. Beaudette

Bacillus amyloliquefaciens NRRL 942 is a Gram-positive bacterium with several potential industrial uses. We have sequenced the whole genome of this organism to assist in understanding the biological mechanisms that might modulate human health or environmental risk in the event of its release into the environment.


2019 ◽  
Vol 203 ◽  
pp. 117-124 ◽  
Author(s):  
Lei Liu ◽  
Jing Liu ◽  
Xiaoting Liu ◽  
Chengwei Dai ◽  
Zexin Zhang ◽  
...  

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