In situ sprouting and regulation of fresh-seed dormancy in Spanish type groundnut (Arachis hypogaea L.)

2001 ◽  
Vol 70 (3) ◽  
pp. 233-241 ◽  
Author(s):  
P.C Nautiyal ◽  
A Bandyopadhyay ◽  
P.V Zala
2010 ◽  
Vol 9 (13) ◽  
pp. 1905-1910 ◽  
Author(s):  
Issa Faye ◽  
Daniegrave l Fonceacute ka ◽  
Jean Franccedil ois Rami ◽  
Hodo Abolo Tossim ◽  
Mbaye Ndoye Sall ◽  
...  

Author(s):  
Narendra Kumar ◽  
B. C. Ajay ◽  
A. L. Rathnakumar ◽  
T. . Radhakrishnan ◽  
M. C. Dagla1 ◽  
...  

The present study was carried out to evaluate eight promising Spanish bunch groundnut genotypes during four consecutive year (2014, 2015, 2016, 2017) to study genotype × environmental interactions and to identify stable sources of fresh seed dormancy in Spanish background in groundnut. Pooled analysis of variance revealed highly significant differences among the genotypes and genotype × environmental interactions for fresh seed dormancy at weekly intervals indicating that differential behavior of genotypes for fresh seed dormancy over the environmental conditions. Based on the results of intensity and duration of dormancy and germination stability index, identified four stable advanced breeding lines viz., PBS 12192, PBS 12187, PBS 12191 and PBS 12190 having high fresh seed dormancy of three week and two stable advanced breeding lines viz., PBS 12189 and PBS 12171 having high fresh seed dormancy of two week. Therefore, these genotypes can be used as novel genetic stock of fresh seed dormancy in Spanish bunch and they can be integrated into breeding programs to develop high yielding Spanish bunch cultivars with 2-3 weeks of fresh seed dormancy to avoid yield losses due to in-situ germination at the time of crop maturity.


Author(s):  
Y. B. Naganagoudar ◽  
P. V. Kenchanagoudar ◽  
Santosha Rathod ◽  
C. M. Keerthi ◽  
H. L. Nadaf ◽  
...  

Pre harvest sprouting in groundnut (Arachis hypogaea L.) seeds belonging to sub species fastigiata is undesirable, since it leads to substantial loss of seeds, both in quantity and quality. This study was conducted to determine the inheritance of fresh seed dormancy in mapping population of TAG 24 x GPBD 4, where in 268 RILs developed from this mapping population. Freshly harvested seeds of mature pods from these RILs were assessed for this dormancy by paper towel test method in laboratory. In the mapping population developed from TAG 24 x GPBD 4, the chi square (c2) test was not significant for the deviation from the expected 3:1 (dormant: non-dormant) ratio. Here it fitted in the 15:1 (non-dormant: dormant) ratio at 14 days after harvest (< 70%). This study showed that seed dormancy in this mapping population was controlled by duplicate recessive gene.


2015 ◽  
Vol 202 ◽  
pp. 25-30 ◽  
Author(s):  
Shu-Fen Cheng ◽  
Chin-Yuan Huang ◽  
Sheng-Chien Lin ◽  
Kuo-Lin Chen ◽  
Yung-Cheng Lin

1999 ◽  
Vol 182 (1) ◽  
pp. 37-41 ◽  
Author(s):  
A. Bandyopadhyay ◽  
P. C. Nautiyal ◽  
T. Radhakrishnan ◽  
H. K. Gor

1991 ◽  
Vol 18 (2) ◽  
pp. 65-67 ◽  
Author(s):  
J-L. B. Khalfaoui

Abstract Obtaining early maturing peanut (Arachis hypogaea L.) (Spanish) with seed dormancy is a major objective in breeding programs. This study was conducted to determine the inheritance of seed dormancy in a cross between the only dormant, early maturing cultivar that is currently released (73–30) and a very early maturing non-dormant cultivar (Chico). Results showed that genetic control is not very complex (additive, dominance and digenic epistatic effects). Broad sense and narrow sense heritabilities ranged between 0.49 and 0.57. These results indicate that pedigree selection for dormancy could be successfully carried out in Spanish type cultivars using 73–30 as a parent.


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