摘要
本文针对栽培花生,从大、小共生体双方研究了寄主植物─根瘤菌株组合的亲和性。结果指出:(1)在温室水培盆栽条件下,用菌株147-3接种的寄主植物结瘤、固氮能力育成品种>普通型;(2)血清学鉴定出5个不同血清型菌株,其竞争力或回收率与寄主品种、根瘤菌株和土著菌数密切相关;(3)在温室与田间条件下,不同花生寄主─根瘤菌株组合存在着广谱或特异共生亲和性与非亲和性的差异,并鉴定出高效、广谱亲和的品种徐州68-4和菌株147-3;(4)强亲和的品种─菌株组合比非亲和组合或不接种(对照)显著增产(P<0.05)。统计1987─1990年7省共205个点的亲和组合接种与不接种对比产量的结果,其增产频率为97%,平均增产421.5kg/ha,增产率15.1%。现已在我国推广应用10.1万公顷。
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both sides of macro-and micro-symbionts were studied for host plant─Bradyrhizobium strain
compatibility of the cultivated peaunt. The results showed that(1)Bred cultivar was better than
virginia type in nodulation and N_2 fixation whenthe host plants were inoculated with strain
147-3 in greenhouse under condition ofwater culture. (2)Five serotype strains were determined
by using agglutination intest tube and FA-indirect method.Nodulation competition and recovery
were closely related to host cultivar. Rhi-zobium strain and indigenous rhizobium population.
(3) The different host plant─Bradyrhizobium strain combinations varied in the
widely/sepecifically symbiotic com-patibility and imcompatibility. A widely compatible cultivalr,
Xuzhou 68-4 withhighly efficient nodulation and N fixation by strains tested, was identified, and
astrong compatible strain 147-3 with broad host range was also indentified in green-house and
field experiments. (4) The strong compatible cultivar─strain combina-tions produced
significantly (P < 0.05) higher pod yields than the imcompatiblecombinations or uninoculated
control. of 205 site trials for inoculation compatiblecombinations in the different parts of China
from 1987─1990, the frequence of yieldincrease was 97%, the average yield increased by
421.5kg/ha, 15.1%, comperedwith uninoculated control.
出处
《土壤学报》
CAS
CSCD
北大核心
1995年第4期400-407,共8页
Acta Pedologica Sinica
关键词
花生
根瘤菌
亲和组合
Peanut, Bradyrhizobium,
Compatible combination