尾叶桉等植物茎提取液对绿豆等植物插条发根和种子萌发的影响

试验表明，尾叶桉茎提取液对绿豆插条生根率、生根量和根长度分别抑制１７０９％、１３４７％和５０２１％；对豌豆插条生根率、生根量和根长度分别抑制１３８４％、２１３７％和１５４１％；对芥兰头种子萌发率抑制６１４２％。落地生根茎提取液对绿豆插条发根量提高２６２６％，但抑制其根长度３２６６％；对豌豆插条发根率、发根量和根长度分别抑制７３５９％、５９６８％和８７８３％；分别抑制江南头菜和芥兰头种子萌发率１５３０％和８３４３％。紫竹梅和水竹草茎提取液对植物茎插条发根和种子萌发也有不同程度的促进或抑制

EFFECT OF STEM EXTRACTS OF Eucalyptus AND OTHER SPECIES ON THE ROOTING OF CUTTINGS OF MUNG BEAN AND PEA AND ON GERMINATION OF SEEDS OF SEVERAL SPECIES

The results of this investigation indicated that the stem extract of Eucalyptus urophylla inhibited the rooting rate, root number and the length of roots of mung bean cuttings by 17.09% ,13.47% and 50.21%, respectively; inhibited the rooting rate, root number and the length of roots of pea cuttings by 13.84%,21.37%, and 15.41%, respectively; and inhibited the germination rate of wild cabbage ( Brassica oleracea L. var. caulorapa DC) seeds by 61.42%. The stem extract of airplant kalanchoe ( Kalanchoe pinnata ) improved the root number of mung bean cuttings by 26.26%, but inhibited the length of roots of mung bean cuttings by 32.66%;inhibited the rooting rate, the root number and the length of roots of pea cuttings by 73.59%,59.68%, and 87.83%, respectively; inhibited the germination rates of Indian mustard ( Brassica juncea var. napiformis ) and wild cabbage by 15.30% and 83.43%, respectively. The stem extracts of wanderingjew zebrina ( Zebrina pendula ) and Setcreasea purpurea had also different stimulatory or inhibitory effects on the rooting of cuttings and germination rates of seeds.