تأثير الأصناف و مواعيد الزراعة في 2-الحاصل و الصفات النوعية للقطن المزروع في مواقع مختلفة من محافظة البصرة Gossypium hirsutum L

الملخص EN

A field experiments were conducted in two location (AL Kurna and ALshafi project) during the growing season 2001, to study the effect of planting time (1St.

of March, 15th of March and 1St.

April) on the yield and quality of different cotton cultivars (Ashor-1, Ahmer saburi, Lashata and Coker310 ).

Result show that : Ashor-1 cultivar gave significantly highest net ginning percentage and fiber strength (gm / tex) while Ashor-1, Ahmer saburi and Lashata cultivars gave significantly highest seed cotton yield (kg / ha) and seed yield (kg / ha) as compared with local cultivar Coker310.

Ashor-1 and Ahmer Saburi and Coker 310 cultivars gave the highest the Microner-tester.

The second and third planting date (15March, 1st April) gave significantly highest seed yield (kg / ha) while first and second planting date gave significantly highest Microner-tester.

At the same time the second planting date gave significantly highest seed cotton yield and seed yield (kg / ha) ; But Al-shafi project location gave significantly highest net ginning percentage and fiber strength (gm / tex).

Lashata and coker 310 cultivars gave significantly highest net ginning percentage at the all planting date.

Ashor-1 cultivars gave significantly highest seed cotton yield (kg /ha) at the second and third planting date and Ahmer saburi cultivar gave at all planting date gave the same effect.

Lashata cultivar gave significantly highest lint yield (kg / ha) at the all planting date.

Ashor-1 and Lashata cultivars at the second and third planting date and Ahmer saburi at the all planting date gave significantly highest seed yield (kg / ha).

All cultivars at the all planting date gave significantly highest fiber length (mm) only Coker 310 cultivar at the second planting date.

Coker 310 cultivar gave highest Microner tester at the second planting date.

Lashata cultivar gave highest fiber strength (gm / tex) at the second planting dare.