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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jul 2017, 38 (4)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Enhancing propagation and growth of Balanites aegyptiaca

through seed treatment

 

A.I. Ahmed1, I.M. Aref1, H.A. El-Atta1 and M. Iqbal2*

1Department of Plant Production, College of Food and Agricultural Sciences, King Saud University, Riyadh-11451, Saudi Arabia

2Department of Botany, Faculty of Science, Jamia Hamdard (Hamdard University), Tughlaqabad, New Delhi-110 062, India

*Corresponding Author E-mail: iqbalg5@yahoo.co.in

 

 

 

Key words

Balanites aegyptiaca,

Seed germination,

Seed treatment,

Seedling growth,

Soil media 

 

 

Publication Data

Paper received : 09.05.2016

Revised received : 03.09.2016

Accepted : 11.02.2017

 

Abstract

Aim: Effect of nine seed pretreatments and seven soil types was studied on seed germination and seedling growth of Balanites aegyptiaca (L.) Del., an endangered medicinal plant, under growth chamber and greenhouse conditions, with a view to enhance its propagation and growth.

 

Methodology: Out of 10 lots of 100 seeds each, nine were soaked separately (1) in concentrated H2SO4 for 5 min, 10 min and 15 min, (2) in water for 24 hr, 48 hr, and 72 hr, and (3) in boiling distilled water for 5 min, 10 min and 15 min. One (untreated) lot was used as the control. Pre-treated seeds with the best % germination were sown in 7 types of soil, viz. Sand, Clay, Sand + Clay (1:1), Sand + Clay (2:1), Sand + Clay (1:2), Sand + Clay + Peat moss (1:1:1) and Sand + Clay + Peat moss + Perlite (2:2:2:1).

 

Results: Seed pretreatments had a significant effect on seed germination, the highest germination percentage (82.5%) coming from soaking in water for 24 h. The least mean germination time (14.5 days) was obtained with seeds soaked in water for 15 min, although they showed a low (25%) germination percentage. Among the soil types, pure sand was the best, giving the highest (82%) germination percentage and the least (18 days) mean germination time. With reference to parameters related to seedling growth, combination of sand, clay and peat moss (1:1:1) was the best media for cultivation of this species, resulting in the maximum height (64.1cm), girth (3.6mm) and vigor index (50) of the seedling after a six month growth. ?? 

 

Interpretation: Soaking seeds in water for 24 hr was the best pretreatment for optimal germination performance. Sand was the best germination media, which became highly favourable for seedling growth on being supplemented with clay and peat moss.

 

 

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