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华北农学报
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1994年第S2期
1.
Effects of manganous sulphate on root growth,cell division,and nucleoli of Allium cepa
2.
Soil trend effect on genetic correlation of crop properties
3.
Morphological characteristics of apomictic embryo in sorghum
4.
Effects of different high temperatures and incubation time periods on embryogenesis in isolated microspore culture of Chinese cabbage (Brassica campestris L. ssp pekinensis)
5.
Research on drought and chilling resistance in wheat and maize
6.
Effects of 1 — 4℃ low temperature treatment on seedling growth and POD isozymes in higher plants
7.
Determination of nutritive constituents in Chinese cabbage by near infrared spectroscopy(NIRS)
8.
Distinguishing sex of silkworm chrysalis in cocoon by NIR with fiber optics
9.
Wheat breeding model for steady and high yield and early maturation in middle and south Hebei province —Analysis of steady and high yield ability of wheat variety Ji 84-5418
10.
Utilization of recessive male-sterile lines in soybean
11.
Review of the sesame breeding by characteristic analysis on the varieties in Henan province
12.
Biological characteristics of entomogenous nematodes
13.
Spatial distribution and sampling of larvae of Phthorimaea operculella(Zeller) and its harmfulness
14.
Occurrence regularity and integrated pest control of wheat midge (Sitodiplosis mosellana Gehin)
15.
Determination of the resistance spectrum of rice varieties (strains) to physiological races of Piricularia oryzae
16.
Control effect of boring pests on fruit trees by high-pressure injection of pesticides
17.
Osmotic adjustment of winter wheat leaves under different soil water stress
18.
Nutritional characteristics and fertilization of Chinese cabbage
19.
Effects of volume weight of soil on corn growth and yield
20.
Effects of mulching practice on microclimate in greenhouse
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