摘要
为使核桃避开晚霜危害,选育避晚霜新品种,以核桃物候期为指标,综合考虑其丰产性、坚果品质和抗逆性等来进行避晚霜核桃优良单株的选择。深入鲁甸县内9乡3镇逐乡逐村进行调查,采用群众荐优和实地调查相结合,对大约3 000棵不同树龄(均不小于15 a)的核桃树进行了调查分析,经预选、初选、复选和决选,最终选出12株避晚霜核桃优良单株,各决选优株芽萌动期与该区域主要栽培品种‘鲁甸大麻1号’相当或晚,比‘云新90303’晚25 d以上。有5个优株的芽萌动期在4月上旬,优株号分别是L161、L185、L343、L353和L455,萌芽最晚的L161,在4月16号芽才开始萌动,比‘鲁甸大麻1号’晚27 d,比‘云新90303’晚近2个月。核桃品种表现为萌芽晚这一价值特性,在鲁甸核桃生产上有较高推广应用价值。
In order to make walnut avoid late-frost damage, and breed new avoiding-late-frost varieties, taking phenological period as indexes, superior trees of avoiding-late-frost walnut were selected, combining high-yield ability, nut quality, stress resistance and so on. The researchers investigated village by village in Ludian County, and about 3 000 walnut trees at different ages （not less than 15 a） were investigated and analyzed, by the method of combination the masses recommend and field survey. Finally, 12 superior trees of avoiding-late-frost walnut were selected, through preliminary selection, initial selection, check and final selection. The bud sprouting period of superior trees was fairly or later than the main cultivars ＇Ludian dama No. 1 ＇, and over 25 d later than ＇Yunxin90303＇. The bud sprouting period of five superior trees were in early April, including L161, L185, L343, L353 and L455. The bud sprouting period of L161 was the latest, and it was on 16 April, 27 d later than ＇Ludian dama No.1＇ and nearly two months later than ＇Yunxin No.90303＇. The characteristics of later bud sprouting of the superior trees had higher application value in walnut production of Ludian County.
出处
《经济林研究》
北大核心
2014年第4期77-82,109,共7页
Non-wood Forest Research
基金
云南省科技计划项目"云南抗寒核桃与短低温薄壳山核桃新品种选育"(2009BB002)
关键词
鲁甸县
核桃
避晚霜
选优
Ludian County
walnut
avoid late frost
selection of superior trees
