scholarly journals Grafting effects on some morpho-physiological characteristics of a cantaloupe landrace (Shahpasand) under salinity and alkalinity stress in hydroponic system

2019 ◽  
Vol 9 (4) ◽  
pp. 41-52
Author(s):  
M. Keshavarzi ◽  
M. Raghami ◽  
H. R. Roosta ◽  
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...  
2021 ◽  
Vol 45 ◽  
Author(s):  
Amador Eduardo de Lima ◽  
Rubens José Guimarães ◽  
Samuel Henrique Braga da Cunha ◽  
Elisa de Melo Castro ◽  
Alex Mendonça de Carvalho ◽  
...  

ABSTRACT The development of modified hydroponic cultivation has aroused interest and its use has enabled advantages in several crops, but studies for coffee are still scarce. Thus, the objective of this research was to evaluate seedling production of three Coffea arabica cultivars (Mundo Novo IAC-376-4, Catuaí IAC-62 Amarelo and MGS Paraíso 2), in a modified hydroponic system, and to compare it with the nursery production system, using plastic polyethylene tubettes and bags. Coffee seedlings in the development phase with cotyledon leaves, were cultivated in both cultivation systems. At 90 days after the implementation of the experiment, the seedlings were analyzed for growth (height, stem diameter, total number, leaf area, root area, root and shoot dry matter weight), and physiological characteristics (chlorophyll content and stomatal conductance). For the statistical analysis, a completely randomized design (CRD) was used in a factorial scheme 3 (cultivars) x 2 (containers) x 2 (cultivation systems), with four replications of ten plants per plot. The innovative production system of coffee seedlings in modified hydroponics, in combination with the use of polyethylene bags, provided greater growth of coffee seedlings with better physiological characteristics. Among the cultivars tested, MGS Paraíso 2 stood out with higher seedling growth (number of leaves, stem diameter and root and shoot dry matter weight).


2012 ◽  
Vol 15 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Ornprapa Anugoolprasert ◽  
Shina Kinoshita ◽  
Hitoshi Naito ◽  
Masafumi Shimizu ◽  
Hiroshi Ehara

2013 ◽  
Vol 19 (2) ◽  
pp. 57-65
Author(s):  
MH Kabir ◽  
MM Islam ◽  
SN Begum ◽  
AC Manidas

A cross was made between high yielding salt susceptible BINA variety (Binadhan-5) with salt tolerant rice landrace (Harkuch) to identify salt tolerant rice lines. Thirty six F3 rice lines of Binadhan-5 x Harkuch were tested for salinity tolerance at the seedling stage in hydroponic system using nutrient solution. In F3 population, six lines were found as salt tolerant and 10 lines were moderately tolerant based on phenotypic screening at the seedling stage. Twelve SSR markers were used for parental survey and among them three polymorphic SSR markers viz., OSR34, RM443 and RM169 were selected to evaluate 26 F3 rice lines for salt tolerance. With respect to marker OSR34, 15 lines were identified as salt tolerant, 9 lines were susceptible and 2 lines were heterozygous. While RM443 identified 3 tolerant, 14 susceptible and 9 heterozygous rice lines. Eight tolerant, 11 susceptible and 7 heterozygous lines were identified with the marker RM169. Thus the tested markers could be efficiently used for tagging salt tolerant genes in marker-assisted breeding programme.DOI: http://dx.doi.org/10.3329/pa.v19i2.16929 Progress. Agric. 19(2): 57 - 65, 2008


10.26524/1333 ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 12-21
Author(s):  
Singh Amrinder ◽  
Kulkarni Kartik ◽  
Sandhu Jaspal Singh

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