Anatomy of petiole leaves of four radish (Raphanus sativus L. var. Sativus)‎ cultivars grown in controlled cabinets under varying temperatures and irrigation levels

المؤلف

Abdil, Qaysar G.

المصدر

مجلة جامعة دهوك

الناشر

جامعة دهوك

تاريخ النشر

2016-06-30

دولة النشر

العراق

عدد الصفحات

18

التخصصات الرئيسية

العلوم الزراعية

الملخص الإنجليزي

Topsi, Famox F1, Corox F1 and Altox F1 radish cultivars were grown in controlled 20 and 12oC cabinets and they were subjected to 0, 33, 66 and 100% depletion of peat moss available water capacity (AWC).

The objective of this experiment was to determine the performances of cuticle, epidermis, hypodermis, cortex, vascular bundles and vessels of four radish cultivars in response to varying temperatures and irrigation levels.

The obtained results revealed that radish grown in 12oC cabinet substantially improved thickness of cuticle (25.2%), epidermis (22.25) and hypodermis (16.8%), as compared to that of radish grown in 20oC.In contrast the deeper petiole tissues, parenchyma cortex thickness, vascular bundle number and vessel number per bundle were highly increased by 3.15, 13.56 and 14.4%, respectively, in radish grown in 20oC cabinet, as compared to that of 12oC.Cuticle thickness results manifested that the best cuticle thickness was concomitant to radish irrigated at 0%AWC depletion which profoundly exceeded that of 33% AWC depletion (47.54%), 66% AWC depletion (1.6%) and 100AWC depletion (20%).Cortex parenchyma exhibited significant gradual reductions in thickness, as the water reduced, and thus 0%AWC was superiorover 33%AWC, 66%AWC and 100%, by 36.25, 76.07 and 168%, respectively.

Cuticle thickness showed significant reduction of 14.1% in Topsi radish cultivar only, as compared to Famox F1.

However, differences between other cultivars were not detected.

The highest hypodermis thickness (90.625 μm) was accompanied to Famox F1 which, apparently surpass other cultivars by 18.12, 50.26 and 32.1%, respectively for Topsi, Corox F1 and Altox F1.

The highest vascular bundles were detected in Topsi 4.25 which significantly exceeded Famox F1 21.4%, Corox F1 9.7% and Altox F13%.Therefore, cultivars can be ordered as follow their cortex thickness and vessel numbers Altox> Famox> Corox> Topsi.

Interaction results are in results and discussion section.

نوع البيانات

أوراق مؤتمرات

رقم السجل

BIM-797862

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