scholarly journals Yield and yield components of six canola (Brassica napus L.) cultivars affected by planting date and water deficit stress

2011 ◽  
Vol 10 (46) ◽  
pp. 9309-9313 ◽  
Author(s):  
Sharghi Younes ◽  
Hossein Shirani Rad Amir ◽  
Ayeneh B Amir ◽  
Noormohammadi Ghorban ◽  
Zahedi Hossein
1978 ◽  
Vol 58 (4) ◽  
pp. 1103-1105 ◽  
Author(s):  
J. M. CLARKE

The effects of time of leaf removal on Brassica napus L. were studied under field conditions at Saskatoon in 1976 and at Swift Current in 1977. Leaf removal at the start of flowering reduced the number of pods per plant, increased seed weight, and reduced seed yield. Leaf removal at the end of flowering did not affect yield or its components.


2011 ◽  
Vol 49 (No. 9) ◽  
pp. 422-426 ◽  
Author(s):  
H. Ozer

Rapeseed (Brassica napus L.) is an important alternate oilseed crop in eastern Anatolia, Turkey. No information on plant density for rapeseed is available in this region. Therefore a study was initiated to investigate the effects of spacings between rows and spacings within rows on the yield and agronomic characteristics of two genotypes of spring rapeseed (Tower and Lirawell) in Erzurum, eastern Anatolia, during 1994 and 1995. The effects of spacings between or within rows on the yield and yield components of Tower and Lirawell, two cultivars of Brassica napus L., were studied for 2 years inErzurum,Turkey. Rows were spaced at 15, 30 and45 cm. Spacings within rows were 5, 10 and15 cm. The results of this study suggested that seed yield was significantly affected by spacings between rows but not by spacings within rows, and that rape yields were higher at the narrow (15 cm) row spacing compared to the middle (30 cm) and wider (45 cm) spacings.


2011 ◽  
Vol 3 (3) ◽  
pp. 120-125 ◽  
Author(s):  
Mohammad HOSSEINI ◽  
Payman HASSIBI

Water deficit stress considered as one of the most important limiting factors for oil seed canola (Brassica napus L.) growth and productivity in Iran. To evaluate the effects of water deficit stress on some qualitative and quantitative characteristics of canola cultivars, this experiment in a greenhouse trial carried out as factorial based on completely randomized design with three replications in Shahid Chamran University of Ahwaz (Iran). Canola cultivars, including ‘Hyola 308’, ‘Hyola 401’ and ‘RGS 003’ as first factor, and the second one was three levels of water deficit stress, including stress at early stem elongation stage to early flowering (D1), early flowering stage to early emergence of sacs (D2), beginning of stem elongation stage to early emergence of sacs (D3) and normal irrigation (C, as check). Results showed that the interaction between water deficit stress and cultivars affected biological yield, seed oil yields and harvest index (p≤0.01), dry matter and economic yield (p≤0.05). Water deficit stress reduced grain oil yields. ‘Hyola 308’ under stress at beginning stem elongation stage to early flowering had the lowest oil yields (1.1 g plants-1) and ‘Hyola 401’ under non-stress conditions showed highest oil yields (4.3 g plants-1). The decrease of oil yields at the flowering stage to stem elongation stage was more than the other stages. In addition, water deficit stress reduced harvest index in the three stress levels due to reduced economic yield and reduced biological yield. Stress susceptibility index for ‘Hyola 401’ at the beginning of stem elongation stage to early emergence of sacs was 0.914 and the ‘Hyola 308’ showed 1.12 at the beginning of stem elongation stage to early emergence of sacs respectively, which it can implies that ‘Hyola 308’ is more sensitive than ‘Hyola 401’ to water deficit stress.


Euphytica ◽  
2014 ◽  
Vol 199 (1-2) ◽  
pp. 183-205 ◽  
Author(s):  
Anne-Sophie Bouchet ◽  
Nathalie Nesi ◽  
Christine Bissuel ◽  
Michel Bregeon ◽  
Amandine Lariepe ◽  
...  

2018 ◽  
Vol 10 (27) ◽  
pp. 115-124
Author(s):  
mahdieh Arshadi Bidgoli ◽  
Hassan Amiri Oghan ◽  
Mohammad Hossein Fotokian ◽  
Bahram Alizadeh

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