A Preliminary Report on Cross Breeding of Early Bearing Walnut

WANG Sha; WU Ning-zi; CHEN Shan-bo; JIN Yin-chun; LUO Hui; WU Zong-xing; YANG Liu-lu; SONG Xiao-jun

doi:10.16779/j.cnki.1003-5508.2018.02.011

In order to create walnut breeding materials in Sichuan, based on the investigation of walnut germplasm resources in the early stage, M1 was used as the female parent, BKZ, KLZ, SQLG and YHT were used as male parent to carry out the cross breeding experiment of early bearing walnut. The fruit setting rate, seed setting rate and phenotypic characteristics of the hybrid fruit were determined and analyzed by variance analysis and multiple comparison. The results showed that (1) the differences of fruit setting rate and seed setting rate among different walnut hybrids were significant (P<0.01). Among them, M1×KLZ had the highest fruit setting rate and M1×BKZ seed setting rate was the highest. (2) The fruit phenotypic traits of different walnut hybrids were significantly different (P<0.01), and the overall performance of the core-shell surface characteristics of each hybrid fruit was pretty good. (3) The coefficient of variation of the phenotypic shape index of different walnut hybrid fruits was smaller, indicating that the phenotypic shape of the hybrid fruit was relatively stable.

Sichuan Academy of Forestry Science, Chengdu 610081, Sichuan, China;College of Horticulture, Sichuan Agricultural Uniersity, Wenjiang 6111302, Sichuan, China;Sichuan Province Forest tree Breeding Engineering Technology Center, Chengdu 610081, Sichuan, China

Received Date: 2018-03-06

Key words:

Abstract: In order to create walnut breeding materials in Sichuan, based on the investigation of walnut germplasm resources in the early stage, M1 was used as the female parent, BKZ, KLZ, SQLG and YHT were used as male parent to carry out the cross breeding experiment of early bearing walnut. The fruit setting rate, seed setting rate and phenotypic characteristics of the hybrid fruit were determined and analyzed by variance analysis and multiple comparison. The results showed that (1) the differences of fruit setting rate and seed setting rate among different walnut hybrids were significant (P<0.01). Among them, M1×KLZ had the highest fruit setting rate and M1×BKZ seed setting rate was the highest. (2) The fruit phenotypic traits of different walnut hybrids were significantly different (P<0.01), and the overall performance of the core-shell surface characteristics of each hybrid fruit was pretty good. (3) The coefficient of variation of the phenotypic shape index of different walnut hybrid fruits was smaller, indicating that the phenotypic shape of the hybrid fruit was relatively stable.

HTML

Reference (15)

[1]	龙兴桂.现代中国果树栽培.落叶果树卷[M].北京:中国林业出版社,2000.
[2]	方文亮,杨振帮.核桃杂交育种研究报告[J].经济林研究,1987(增刊):228~233.
[3]	韩华柏,何方.我国核桃育种的回顾和展望[J].经济林研究,2004,22(3):45~50.
[4]	陈善波,金银春,熊量,等.美国加州核桃产业化发展与借鉴[J].四川林业科技,2017,38(5):109~114.
[5]	蒲光兰,肖千文,周兰英.早实核桃新品种‘川早1号’[J].园艺学报,2011,38(10):2025~2026.
[6]	肖千文,周兰英,胡庭兴,等.早实核桃新品种‘川早2号’[J].园艺学报,2012,39(11):2317~2318.
[7]	肖千文,蒲光兰,周兰英,等.早实抗寒核桃新品种‘川早3号’[J].园艺学报,2012,39(12):2529~2530.
[8]	肖千文,肖前刚,周兰英,等.早熟薄皮核桃新品种‘双早’[J].园艺学报,2013,40(1):179~180.
[9]	陈善波,黄洋,宋乾丽,等.不同修剪方法对核桃幼树生长量的影响[J].四川林业科技,2016,37(3):88~91.
[10]	陈善波,王丽,王莎,等.四川穗状核桃资源调查与果实品质评价研究[J].四川林业科技,2017,38(2):1~7.
[11]	陈善波,王莎,金银春,等.四川穗状核桃优良单株坚果综合性状评价研究[J].四川林业科技,2018,39(1):32~36.
[12]	李加纳,唐章林,堪利.数量遗传学概论[M].重庆:西南师范大学出版社,1995.
[13]	蔡利娟.不同核桃类群综合性状的比较研究[D].四川农业大学,2014.
[14]	徐颖,张美勇,高丽,等.核桃种间杂交研究初报[J].落叶果树,2007,39(1):6~7.
[15]	赵福洞,赵爽,赵建建,等.‘绿岭’核桃杂交后代果实性状遗传特性研究[J].河北农业大学学报,2015,38(1):53~59.

A Preliminary Report on Cross Breeding of Early Bearing Walnut

doi: 10.16779/j.cnki.1003-5508.2018.02.011

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views