5种药剂对天然山杏林生长的影响

Effects of Five Medicaments on Growth of Prunus armeniaca Natural Forests

为研究不同药剂及其不同浓度对山杏生长量和杏仁产量的影响,2011年4～9月,在乌兰察布市上高台林场内山杏天然林喷施5种药剂进行对比观测。结果表明:1)B9推迟花期、提高成花率都高于硼酸。2)稀土1 000 ppm、防落素25 ppm坐果率最高,分别可提高12.0%、10.6%。3)药剂的喷施对山杏果实影响显著,而对枝、叶影响不明显。4)各药剂不同浓度对山杏产量影响可分为3类,第Ⅰ类显著影响共7个,第Ⅱ类影响共3个,第Ⅲ类影响不显著共5个。

To clarify the influence of different medicaments with different concentrations on the growth and almond yield of Prunus armeniaca, a comparative study by spraying five medicaments in Prunus armeniaca natural forest was conducted in Shanggaotai Forest Farm in Wulanchabu from April to September in 2011. The results showed that： 1 ） Compared to boric acid, B9 postponed flowering and elevated flower formation rate more effectively. 2） The highest fruit setting rate appeared in treatments of both rare earth 1 000 ppm and PCPA 25 ppm, with the im- provement of 12.0% and 10. 6% respectively. 3 ） Spraying medicaments had dramatic effects on fruit productivity, however, obscured on growth of branches and leaves. 4） Influences of medicament treatments differed in types and concentrations on almond yield were divided into three categories, seven for the significant influences, three for the ordinary influence and five for not significant influence.