不同配方轻基质对鳞皮云杉生长及光合参数的影响
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摘要
2015年,在青海省玛珂河林区设置5种轻基质配方,即P1(泥炭:椰糠:珍珠岩=4.5:4.5:1,均为体积比),P2(泥炭:椰糠:珍珠岩=5:4:1),P3(泥炭:椰糠:珍珠岩=6:3:1),P4(泥炭:椰糠:珍珠岩=7:2:1),P5(泥炭:椰糠:珍珠岩=8:1:1),以当地土壤作为对照(CK)基质进行鳞皮云杉Picearetroflexa容器育苗,2018年5月进行各处理生长指标的测定,研究不同轻基质配方对鳞皮云杉幼苗生长及光合参数的影响。结果表明:(1)经过3a的生长,5种轻基质配方的苗高和地径均显著高于CK,其中苗高以P3,P4和P5较大,地径无显著性差异;(2)5种轻基质配方的地上和地下部分生物量均显著高于CK(P<0.05),其中地上部分生物量以P4和P5较大,而地下部分生物量以P3,P4和P5较大;(3)5种轻基质配方的根表面积、总根长、根尖数量和根系活力均显著优于CK(P<0.05),其中以P4和P5最好;(4)5种轻基质配方的光合作用均显著强于CK(P<0.05),其中净光合速率以P3,P4和P5较大,水分利用效率以P4最大;(5)鳞皮云杉的根系生长情况总体上均与地上部分生长情况呈显著的正相关(P<0.05)。研究表明,轻基质对鳞皮云杉的生长具有显著的促进作用,5种轻基质配方中以P4配比最优。
Experiments were conducted on container seedling cultivation of Picea retroflexa on different ratio of peat, coco coir and pearlite in Makekehe Forest Farm, Qinghai province in April, 2015 with local soil as control. Determinations were implemented in May, 2018 on growth traits and photosynthetic parameters. The result demonstrated that height and ground diameter of seedling on light medium was evidently higher than that of the control. Above ground and underground biomass of seedlings on light medium was higher than that of the control. Root surface area, total length and root tip number and root system vigor of seedlings on light medium was much better than that of the control. Photosynthetic efficiency of seedlings on light medium was much higher than that of the control, as well as water use efficiency. Correlation analysis demonstrated that root growth had positive relation with above ground growth of seedlings. The experiment resulted that light medium could promote seedling growth, the best ratio was peat: coco coir: pearlite=7:2:1.
Experiments were conducted on container seedling cultivation of Picea retroflexa on different ratio of peat, coco coir and pearlite in Makekehe Forest Farm, Qinghai province in April, 2015 with local soil as control. Determinations were implemented in May, 2018 on growth traits and photosynthetic parameters. The result demonstrated that height and ground diameter of seedling on light medium was evidently higher than that of the control. Above ground and underground biomass of seedlings on light medium was higher than that of the control. Root surface area, total length and root tip number and root system vigor of seedlings on light medium was much better than that of the control. Photosynthetic efficiency of seedlings on light medium was much higher than that of the control, as well as water use efficiency. Correlation analysis demonstrated that root growth had positive relation with above ground growth of seedlings. The experiment resulted that light medium could promote seedling growth, the best ratio was peat: coco coir: pearlite=7:2:1.
引文
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[14]张志勇,卜晶晶,王素芳,等.冠菌素对不同钾水平下TTC法测定的棉花根系活力的影响[J].植物生理学报,2015,51(5):695-701.
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[19]黄小辉,冯大兰,刘芸,等.模拟石漠化异质生境中桑树的生长和叶绿素荧光特性[J].北京林业大学学报,2016,38(10):50-58.
[20]梁金华.内蒙古荒漠化草原四种植物的根系构型特点及其生态适应性研究[D].呼和浩特:内蒙古农业大学,2012.
[21]常君,王开良,姚小华,等.不同基质、不同容器对薄壳山核桃苗木根系生长影响的研究[J].西南师范大学学报:自然科学版,2012,37(8):86-91.
[2]李君玉,文亮,侯俊.塔子坝鳞皮云杉无性系种子园选育[J].四川林勘设计,2014(4):41-45.
[3]马丹炜.九寨沟自然保护区鳞皮云杉(Picea aurantiaca var. retroflexa)种群结构与动态初探[J].四川师范大学学报:自然科学版,1999(2):62-66.
[4]张琴.松树容器育苗及造林技术[J].中国林业,2012,26(3):134.
[5]李志明.容器育苗技术在林业育苗中的应用与发展探讨[J].南方农业,2017,11(27):58.
[6]郎晋妮.容器育苗技术的应用现状及发展前景[J].中国高新技术企业,2012(33):41-43.
[7]郑坚,马晓华,廖亮,等.基质成分配比对木荷容器苗生长及存苗率的影响[J].森林与环境学报,2017,37(2):218-224.
[8]梁金波,张强,戴居会,等.降低秋季大田短穗扦插育苗成本的关键技术[J].中国茶叶,2010,32(4):21-22.
[9]马文君,海泓.油松大田育苗与容器育苗的生长比较[J].农业开发与装备,2015(3):69,150.
[10]薛秉仁,苏东霞,李树芬,等.蔬菜穴盘育苗技术应用[J].北方农业学报,2006(5):77-77.
[11]黄仁明,徐嘉娟,罗敬,等.油茶容器育苗基质配方研究[J].贵州林业科技,2016,44(1):35-38.
[12]陶永明,司剑华.不同轻基质配方对川西云杉幼苗生长的影响[J].浙江林业科技,2017,37(4):66-70.
[13]冯燕,王彦荣,胡小文.水分胁迫对两种荒漠灌木幼苗生长与水分利用效率的影响[J].草业学报,2011,20(4):293-298.
[14]张志勇,卜晶晶,王素芳,等.冠菌素对不同钾水平下TTC法测定的棉花根系活力的影响[J].植物生理学报,2015,51(5):695-701.
[15]彭家中,常宗强,冯起.温度和土壤水分对祁连山青海云杉林土壤呼吸的影响[J].干旱区资源与环境,2008,22(3):165-169.
[16]乌丽雅斯,刘勇,李瑞生,等.容器育苗质量调控技术研究评述[J].世界林业研究,2004,17(2):9-13.
[17]李贵雨,卫星,汤园园,等.白桦不同轻基质容器苗生长及养分分析[J].林业科学,2016,52(7):30-37.
[18]秦爱丽,郭泉水,简尊吉,等.不同育苗基质对圃地崖柏出苗率和苗木生长的影响[J].林业科学,2015,51(9):9-17.
[19]黄小辉,冯大兰,刘芸,等.模拟石漠化异质生境中桑树的生长和叶绿素荧光特性[J].北京林业大学学报,2016,38(10):50-58.
[20]梁金华.内蒙古荒漠化草原四种植物的根系构型特点及其生态适应性研究[D].呼和浩特:内蒙古农业大学,2012.
[21]常君,王开良,姚小华,等.不同基质、不同容器对薄壳山核桃苗木根系生长影响的研究[J].西南师范大学学报:自然科学版,2012,37(8):86-91.