The Influence Of Priming Two Cucumber Cultivar Seeds

J. Duhok Univ. Vol.13, No.1, (Agri. And Vet. Sciences) Pp 1-18, 2010
cm 2 , plant dry matter percentage 22.9%, leaf dry
matter percentage 48.7%, total yield 9.77 kg.m -2 ,
percentage of fruit dry matter 4.6%, fruit length
16.4 cm, (tables, 3 and 4); fresh fruit yield at 2 nd
, 3 rd , 4 th , 6 th , 7 th , 12 th , 14 th , 17 th ,18 th ,19 th , and
20 th harvests and their values were 51.1, 92.4,
793, 948.9, 1386.7, 777.4, 488.9, 393.3, 292.4,
and 92.2 g.m -2 , respectively; fruit number.m -2 at
1 st , 2 nd , 3 rd , 4 th ,5 th , 6 th , 7 th , 8 th , 9 th , 11 th , and
17 th harvests and their magnitudes were,
respectively, 0.6, 1, 1.5, 1.7, 7.13, 5.4, 7.1, 5.6,
6.7, 9.63, and 3.3, (tables, 9 and 10). These
results could be referred to the combination of
favourable growing condition at very early stage
Resemble results were observed in 2005 trail.
Babylon seeds primed in ion antagonism
solution (CaCO3+MgSO4) were the most
effective interaction treatment. Thus it gave the
highest plant dry weight 83 g, leaf dry weight
4.3 g and total yield 11.2 kg.m -2 (tables, 3 and
4); fruit fresh yield at 2 nd , 5 th , 7 th , 8 th , 9 th , 10 th ,
11 th , 12 th , 17 th , and 18 th harvests with values of
55.6, 780.6, 934.4, 775, 1088.9, 1166.7, 833.3,
1461.1, 516.7, and 391.7, respectively (tables, 9
and 10); fruit number.m -2 at 3 rd , 7 th , 8 th , 9 th , 11 th ,
14 th , 16 th , and 17 th harvests with values of 0.7,
8.7, 6.4, 7.77, 11.23, 5.7, 4.5 and 3.8,
respectively, (tables, 9 and 10). Recent studies
manifested that seeds priming overcome
incomplete embryo probles and altering the
performance of metabolic activities in seed
embryos. Basra (1995) summarized that priming
operates to enhance seed quality by a
combination of processes that may include
cellular repair and improved membrane
integrity; decreased seed exudation and
concomitant decreased growth of pathogenic
organisms; enhanced mobilization of seed
protein, lipid, and starch as a result of activation
or synthesis of advanced embryo development;
weakened restraining tissues around the radical;
4
and vigorous of well adapted cultivar namely
Babylon.
Babylon seeds primed in MgSO4 solution in
2004 growing season manifested the
highest individual leaf dry weight 4.2 g,
individual leaf fresh weight 9.7 g, calcium
content of fruit 3035.5 mg.kg -1 , fruit
length 15.8 cm, and total yield14.1 kg.m -2
(tables, 2 and 4); fresh fruit yield at
2 nd harvest 1768.3 g.m -2 and 7 th harvest 1316.7
g.m -2 (table, 5); fruit number.m -2 at 2 nd and
7 th harvests with values of 21.7 and 15.7,
respectively, (table, 7).
and increased potential for oxidative
phosphorylation and ATP accumulation.
Results of 2004 experiment revealed that
direct cultivation of Babylon seeds primed by
MgSO4 was the best triple interaction treatment.
It manifested the highest magnitudes in term of
plant dry matter percentage 26.2%, total yield of
fresh fruit 14.1 kg.m -2 (tables, 2 and 4); fresh
fruit yield at 2 nd harvest 242 g.m -2 and fruit
number.m -2 at 2 nd harvest 29.7 (tables, 5 and 7).
Whereas, the best triple interaction in 2005
experiment was direct cultivation of Kalifa seeds
primed in ion antagonism solution. This
treatment gave the highest plant length 146.5
cm, total yield 11.7 kg.m -2 , and fruit yield at 9 th
harvest 533.3 g.m -2 ,(tables, 3,and 4). Seed
priming affects directly and in directly on cell
metabolism, as documented by previous
investigations. Priming synchronized the
development of seeds, bringing them all to the
same metabolic state. In carrot or celery seeds
with rudimentary embryos, considerable embryo
growth may occur during priming, even though
radical growth is prevented (Van der Toorn,
1989).