of seeds from the plant (As = 0.23; p≤0.05) and weighing 1000 seeds (As = 0.66;
p≤0.05).
From the weak to the strong positive asymmetry Vigna unduiculata was detected
in relation to the height of the lower leg beans (As = 0.25; p≤0.05) and the weight of
1000 seeds (As = 0.74; p≤0.05).
Different levels of asymmetry of distribution at plant height are established in all
species of vigna.
The value of the asymmetry index varied from the low positive to the
Vigna aconitifolia (As = 0.14; p≤0.05) to the high positive Vigna angularis (As = 0.55;
p≤0.05).
The presence of a certain level of asymmetry in the studied species of vigna
indicates the tendency of variability of the studied features in the direction of the
corresponding values (smaller or larger).
The presence of a significant and average
level of asymmetry allows us to talk about the heterogeneity of the investigated plant
material and makes it possible to select according to any of the studied features.
The
insignificant or absent asymmetry can indicate the stability of the sign.
According to
Fery et al. [9], the samples of high variability with minor asymmetry have the greatest
value for selection.
According to the authors of the works [9], the high level of
variability facilitates the effective selection on a certain basis, and insignificant or
absent asymmetry can serve as an auxiliary indicator for achieving the stability of the
feature.
The results obtained by us indicate that all samples of the studied collection to
one degree or another correspond to the specified criteria and are a promising material
for vigna breeding in different areas of use.
The analysis of the nature of the distribution of the economic characteristics also
allowed to establish a significant positive excess for some collectable samples of vigna
(Table 6). Thus, in the UD1000033 sample the value of the excess weight of the seed
from the plant was 10.1, p≤0.05.
For the collectible sample UD1000044 a significant
positive excess was noted for the amount of seed from the plant which was 8.54,
p≤0.05.
According to the “height of plants” UD1000052, UD1000006, UD1000005
and UD1000007 samples showed a positive excess which respectively was Ex = 1.02,
1.87, 1.11 and 1.05; p≤0.05.
The presence of a significant positive excess in the height
of fastening of the lower tier of beans was marked by UD1000052, UD1000015,
UKR001:00037, UKR001:00040 and UD10000044 (respectively, Ex = 1.15, 1.25,
1.98, 2.65 and 1.41; p ≤0.05). The sample UD1000009 was characterized by a
significant positive excess in the number of beans per plant, respectively, Ex = 2.31;
p≤0.05.
In all the samples of the collection of vigna the weight of the seeds from the
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