TY  - JOUR
T1  - Analysis of Combining Ability and Heritability about Nut Quality of Walnut
AU - Lan-Ying, Zhou AU - Qian-Wen, Xiao AU - Li, Zhang AU - Shang-Jie, Zhang AU - Ping-Bang, Wang 
JO  - Botany Research Journal
VL  - 1
IS  - 4
SP  - 75
EP  - 78
PY  - 2008
DA  - 2001/08/19
SN  - 1995-4751
DO  - brj.2008.75.78
UR  - https://makhillpublications.co/view-article.php?doi=brj.2008.75.78
KW  - Walnut
KW  -nut quality
KW  -combining ability
KW  -heritability
AB  - Twenty four hybrid combinations were formulated by NCIIdesign using hybrids (<I>J. sigillata</I> x <I>J. regia</I>) Yunxin 7926 (P<SUB>11</SUB>), 8064 (P<SUB>12</SUB>), 8034 (P<SUB>13</SUB>), 7914 (P<SUB>14</SUB>) as female parent and 6 superior trees of <I>J. sigillata</I> from Sichuan as male parent. The combining ability and heritability of walnut characters were studied, including diameter, weight, thickness and rate of kernel. The result showed that: both additive variation and non-additive variation were significant in these 4 characters, but the additive variation was principle. Different parent had different excellent genes. P<SUB>24</SUB>, P<SUB>23, </SUB>P<SUB>22</SUB> and P<SUB>14 </SUB>were the best parent to improve walnut diameter and weight, followed by P<SUB>21</SUB>, P<SUB>13</SUB> and P11. In contrast, P<SUB>25</SUB>, and P<SUB>26</SUB> showed poor effect on diameter and weight. Cross P<SUB>11</SUB>×P<SUB>23</SUB>, P<SUB>11</SUB>×P<SUB>24 </SUB>and P<SUB>12</SUB>×P<SUB>24</SUB> were good for increasing diameter, while cross P<SUB>11</SUB>×P<SUB>26 </SUB>was the best in increasing rate of kernel. The broad-sense heritability was ordered from high to low as diameter (0.990) &gt;thickness(0.968) &gt;rate of kernel (0.970) &gt;weight (0.968) and the narrow-sense heritability was ordered as diameter (0.844) &gt;thickness(0.821) &gt;weight (0.735) &gt;rate of kernel (0.693).
ER  -