不同栽培模式下岷江百合生长差异性研究

为探讨成都平原气候条件下岷江百合人工栽培不同模式下植株生长差异,以岷江百合6年生实生植株为试验材料,观测其在日光温室大棚地面苗床(PD)、日光温室大棚营养钵(PB)、室外田间(LD)、室外营养钵(LB)4种栽培模式条件下物候及11个生长指标的差异,借助相关性分析及主成分分析,研究各生长指标间的相互关系,并对不同栽培模式进行综合评价。结果表明:①PD和PB模式果熟期前的物候时间均早于LD和LB模式,果熟期及枯萎期则相反,其中PB模式萌芽、果荚成熟时间最早,PD模式开花时间最早、LD模式植株枯萎时间最早;②不同栽培模式下岷江百合实生植株地径、株高、单株花数量等11个生长指标均达到极显著差异(p<0.01),其中以单株花数量变幅最大,达427.00%,花径变幅最小,为9.67%;③4种栽培模式11个生长指标互呈正相关性,且多个指标相关性达极显著水平(p<0.01);④结合相关性分析结果,对筛选出的8个指标进行主成分分析,综合得分排名为PD>LD>LB>PB,PD模式最利于岷江百合植株生长。

A Study of Growth Difference of Lilium regale by use of Different Cultivation Models

In order to investigate the growth difference by use of different artificial cultivation models of Lilium regale Wilson which were planted in Chengdu Plain climate conditions.The 6-year-old seedlings were selected as the experimental materials,which were planted by use of four different cultivation models,i.e.ground seedbed in the sunlight greenhouse(PD),nutrition pot in the sunlight greenhouse(PB),outdoor field(LD),and nutrition pot in the outdoor field(LB).Phenology and 11 growth indexes were determined.The correlation analysis and principal component analysis were used to study the interrelation among the 11 growth indexes and comprehensively evaluate the four different cultivation models.The results showed that(1)the phenology before fruit ripening of PD and PB was earlier than that of LD and LB,but the opposite pattern was observed in fruit ripening and withering phenology.Among all the models,PB showed the earliest sprouting and pod ripening phenology,PD had the earliest flowering phenology,and LD has the earliest withering phenology;(2)all the tested 11 growth indexes,such as the ground diameter,plant height and number of flowers per plant showed significant differences(p<0.01)by use of different cultivation models.The number of flowers per plant had the highest coefficient of variation,reaching 427.00%,and the flower diameter had the lowest coefficient of variation,reaching 9.67%;(3)all the 11 growth indexes of Lilium regale by use of four cultivation models showed positive correlation with each other,and the correlation of multiple indexes reached extremely significant level(p<0.01);(4)the principal component analysis of 8 selected indicators showed that the comprehensive score ranking was PD>LD>LB>PB,PD was the best for the growth of Lilium regale.