Journal of Food, Agriculture and Environment

Studies on quality of apomictic seeds and sexual seeds of walnut (Juglans regia L. cv ‘Lvling’)

Author(s):

Rui Du ^1,4, Xuemei Zhang ^{2, 3}, Ping Wang ², Baoguo Li ^{2, 3}, Yuhong Gu ^{1, 3*}, Guohui Qi ^{2, 3}, Yingchao Li ², Lu Liu ¹

Recieved Date: 2013-06-11, Accepted Date: 2013-09-24

Abstract:

In order to study on the appearance quality of nuts and the nutrition quality in the kernels of walnut seeds between apomictic and open-pollinated seeds, precocious and thin-shell walnut (Juglans regia L. cv ‘Lvling’) was used as material, which was identified as an apomictic species. The results showed that mean weight of apomictic seeds was 9.35 g, which was significantly lower than that of open-pollinated seeds; and suture height of apomictic seeds was lower than that of open-pollinated seeds. The nutshell in the apomictic seeds was thicker than that of open-pollinated seeds. The total protein contents in the kernels were 226.9±3.90 and 228.1±3.98 g·kg^-1 in the apomictic and open-pollinated seeds, respectively. The fat contents in the kernels from apomictic and open-pollinated seeds were 567.2±3.53 and 564.3±2.43 g·kg^-1, respectively, and no difference was found between apomictic seeds and open-pollinated seeds. The contents of N, P, Mg and Fe in the kernels of apomictic seeds were lower than those of open-pollinated seeds, and no difference was found between apomictic and open-pollinated seeds.The contents of Ca and Mn in the kernels of apomictic seeds were significantly lower than those of open-pollinated seeds (P<0.01). The K content in the kernels of apomictic seeds was significantly lower than that of open-pollinated seeds (P<0.05). The contents of Cu in the kernels of apomictic seeds were significantly higher than those of open-pollinated seeds (P<0.01), and the contents of Zn in the kernels of apomictic seeds were significantly higher than those of open-pollinated seeds (P<0.05).

Keywords:

Walnut seed, quality, apomixis, sexual reproduction

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Agriculture
Pages: 1026-1028

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