تأثير المعاملة بسماد NPK في أقلمة نبيتات نخيل التمر Phoenix dactylifera L. صنف الأشقر المكثر خارج الجسم الحي

الملخص EN

This study was conducted in tissue culture Lab.

In Date palm research center –Basrah university to study the effect of irrigated and spray with NPK fertilizer with concentrations (0.25, 0.5, 0.75 and 1) gm\L.

in addition to control treatment in plantlet acclimatization of date palm cv.Ashkar in vitro The results as follow: 1.

The percentage of acclimatized plantlet: the irrigated and spray with (0.75) gm\L.

led to give a higher percentage of plantlet acclimatization with significant difference of other used concentrations except spray with (0.5) gm\L.

concentration which the percentage of acclimatized plantlet in irrigated operation was (90%) and spray operation was (100%) while the lowest percentage appeared in control treatment with significant difference of other used concentrations except irrigated with (0.25) gm\L.

2.

Number of new leaves formatted: results showed the irrigated and spray with (0.75) gm\L.

concentration led to gave a high average of new leaves formatted which (2) leave\plantlet by irrigated operation and (3) leave\plantlet by spray operation while no any new leave formatted in treated by irrigated with (0.25) gm\L.

and control treatment irrigated and spray operations.

3.

the leave length: results showed the irrigated and spray by (0.75) gm\L.

led to gave a higher average of leave length which (24.5) cm in irrigated operation and (27.16) cm in spray operation with significant difference of other used treatments and a lowest average of leave length was in control treatment which (17.

5) cm in irrigated operation and (17.25) cm in spray operation with significant difference of other treatment except irrigated with (0.25) gm\L.

4.

Number of formatted roots: the irrigated and spray with (0.75) gm\L.

concentration led to gave a higher average of formatted roots which (6.47) and (7.84) respectively with significant difference of other treatments while the lowest average appeared in control treatment with significant difference of other treatment except irrigated with (0.25) gm\L.

5.

Roots length: the treated by irrigated with (0.75) and (1) gm\L.

gave a higher average of roots length which (5.92 and 5.56) cm respectively while the spray by (0.75) gm\L.

superior significantly on other treatments which (7.76) while lowest average of roots length appeared in control treatment in irrigated which (3.25) and in same treatment in spray operation which (4.64) cm but without significant difference of spray with (0.25) gm\L.

it which (4.85) cm.

6.

Chlorophyll: the results showed the irrigated and spray with (0.75) and (0.5) gm\L.

led to gave a significant increased in chlorophyll A, B and total chlorophyll while other treatments do not difference about them except the spray with (0.25) gm\L.

concentration do not difference significantly of spray with (1) gm\L.

and control treatment in it effect of chlorophyll A.