caa a22 4500 445322675 CHVBK 20180317142709.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10681-011-0420-3 doi (NATIONALLICENCE)springer-10.1007/s10681-011-0420-3 Relationship between the first and second crops and estimation of genetic parameters of the second crop on the nutritive value of timothy ( Phleum pratense L.) [Elektronische Daten] [Kazunori Ashikaga, Tsuneki Tanaka, Hiroki Fujii, Hiroyuki Tamaki, Koichi Sato, Kenzaburo Deguchi, Kenji Iida] Improvement of the nutritive value of timothy (Phleum pratense L.) through breeding should result in enhanced livestock productivity. This study investigated the extent of genotype×crop interaction (G×C) between the first and second crops, and the extent of genotype×year interaction (G×Y) and narrow-sense heritability (h N 2 ) of the second crop of the nutritive value of timothy. Twenty-six clones were used to evaluate these interactions in 2007 and 2008, and 17 clones and their half-sib progeny were used to evaluate the h N 2 in 2010 in Kunneppu, Japan by analyzing their nutritive value. The content of water-soluble carbohydrate (WSC) was significantly correlated between the two crops in 12 clones with many internode elongation stems (IES) in the second crop and the 2years, with non-significant effects of G×C in these clones and G×Y. However, the low-digestible fiber (Ob) content and the ratio of Ob to organic cell wall showed weak to medium correlations between the two crops, regardless of IES ratio or the elapsed time of 2years, with significant effects shown for the two interactions. The h N 2 of the three traits was medium to high. These results suggest that, in the second crop, selections for WSC content through the first crop in genotypes with many IES in the second crop, and under multiple environments in other traits are potentially useful; and that recurrent selection which utilizes an additive genetic variance is likely to be effective for the three traits. Springer Science+Business Media B.V., 2011 Genotype×crop interaction nationallicence Heritability nationallicence Nutritive value nationallicence Second crop nationallicence Timothy nationallicence Ashikaga Kazunori Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut Tanaka Tsuneki Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut Fujii Hiroki Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut Tamaki Hiroyuki Nasu Research Station, National Institute of Livestock and Grassland Science, 329-2793, Nasushiobara, Tochigi, Japan aut Sato Koichi Tenpoku Sub Station, Kamikawa Agricultural Experiment Station, Hokkaido Research Organization, 098-5738, Hamatombetsu, Esashi-gun, Hokkaido, Japan aut Deguchi Kenzaburo Konsen Agricultural Experiment Station, Hokkaido Research Organization, 086-1135, Nakashibetsu, Shibetsu-gun, Hokkaido, Japan aut Iida Kenji Animal Research Center, Hokkaido Research Organization, 081-0038, Shintoku, Kamikawa-gun, Hokkaido, Japan aut Euphytica Springer Netherlands 182/3(2011-12-01), 325-334 0014-2336 182:3<325 2011 182 10681 https://doi.org/10.1007/s10681-011-0420-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0420-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ashikaga Kazunori Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut NATIONALLICENCE 700 1- Tanaka Tsuneki Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut NATIONALLICENCE 700 1- Fujii Hiroki Kitami Agricultural Experiment Station, Hokkaido Research Organization, 099-1406, Kunneppu, Tokoro-gun, Hokkaido, Japan aut NATIONALLICENCE 700 1- Tamaki Hiroyuki Nasu Research Station, National Institute of Livestock and Grassland Science, 329-2793, Nasushiobara, Tochigi, Japan aut NATIONALLICENCE 700 1- Sato Koichi Tenpoku Sub Station, Kamikawa Agricultural Experiment Station, Hokkaido Research Organization, 098-5738, Hamatombetsu, Esashi-gun, Hokkaido, Japan aut NATIONALLICENCE 700 1- Deguchi Kenzaburo Konsen Agricultural Experiment Station, Hokkaido Research Organization, 086-1135, Nakashibetsu, Shibetsu-gun, Hokkaido, Japan aut NATIONALLICENCE 700 1- Iida Kenji Animal Research Center, Hokkaido Research Organization, 081-0038, Shintoku, Kamikawa-gun, Hokkaido, Japan aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 182/3(2011-12-01), 325-334 0014-2336 182:3<325 2011 182 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer