On the Effects of PABA on Germination - Progress in Organic and Physical Chemistry: Structures and Mechanisms - page 253

20

On the Effects of PABA on
Germination

S. A. Bekusarova, N. A. Bome, L. I. Weisfeld,
F. T. Tzomatova, and G. V Luschenko

CONTENTS

20.1 Introduction ..................................................................................................... 253
20.2 Material and Methods...................................................................................... 255
20.3 Discussion........................................................................................................ 255
20.4 Results ............................................................................................................. 256
20.5 Conclusion ....................................................................................................... 259
Keywords ................................................................................................................. 260
References ................................................................................................................ 260

20.1 INTRODUCTION
Para-aminobenzoic acid (PABA) by well-known activator of growth and development
was applied for treatment of ears of winter wheat and winter barley. The varieties
of these cultures are destined for North Caucasian region. Also panicles of selection
samples of millet (the varieties are introduced in North Ossetia) were subject to treat-
ment by PABA. The PABA was dissolved in acetic acid but not in water as usual.
Advantages of that mode are described. These methodologies allow to accelerate a
breeding process, when often is necessary to sow in year, when was gathered harvest.
In the process of selection for the speedup study of material, it is necessary to get the
sufficient amount of seed in the earliest possible dates. For the speedup estimation of
plant breeding material it is necessary to get the sufficient amount of seed in the earli-
est possible dates. To that end conducted sowing of inflorescences without threshing
from the plants of cereal cultures selected for a selection. The method of sowing by
years was tested during two years in Tyumen research station of N. I. Vavilov Research
Institute of Plant Industry on more than 100 samples of winter wheat from world col-
lections. The productivity of winter form of cereals depends on a set of biotic (patho-
genic microorganisms) and abiotic (temperature, amount of precipitation etc.) factors.
We obtained positive results for winter hardiness and resistance to snow mold which
main pathogen is Microdochium nivale (Fr.) Samuels and I. C. Hallett ( = Fusarium
nivale Ces. ex Berl. and Voglino).