Normal view MARC view ISBD view

Pre-sowing hardening and water stress effect on sesame (Sesanum indicum L.) at different stages of growth / by Alexander Feraer Ferre

By:

Ferre, Alexander Feraer [author]

Material type: Text

TextLanguage: English Publication details: College Laguna : University of the Philippines, 1978.Description: xiii, 116 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

635.7 F37 1978

Online resources:

Click here to view thesis abstract and table of contents

Abstract: Ferre, Alexander, F., University of the Philippines at Los Banos, March 1978. Pre-Sowing Hardening and Water Stress Effect on Sesame (Sesanum indicum L.) at Different Stages of Growth. Major Professor: Dr. Adolfo C. Necesito. Laboratory studies on germination, seedling performance and field experimentation were conducted to study the response of sesame to pre-sowing hardening (PSH) and water stress at different stages of growth. The PSH treatment consisted of soaking seeds in different osmotica for 12 hours and drying for 48 hours before sowing. Differences were observed among treatments in terms of germination in the following order: CaClg Control NaCl Glucose Distilled water. Concentration effect was clearly manifested among treatments that 2.5% gave the highest germination in CaClo, 0.1% in NaC1, and 0.7% in glucose. In terms of vegetative growth such as number of leaves and height of the plant and finally dry matter yield, calcium chloride with concentration of 2.0 and 2.5% were considered the best. Under field trial the favorable effect of pre-sowing hardening treatment was clearly manifested on the following plant characteristics: improve fresh weight yield of roots, favorable relative water content of leaves and petiole which was highest in hardened plants under non-irrigated treatment. Dry weight yield of roots was also observed to be higher in the hardened plants than the control for both the irrigated and non-irrigated plants. These characters were obServed during the flowering stage. Pre-sowing hardening treatments (PSH) resulted in higher seed yields than the control regardless of the irrigation treatments. All these observations suggest that the pre-treatments could be an effective measure to improve drought tolerance to some degree.

Average rating: 0.0 (0 votes)

Holdings ( 2 )
Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Copy number	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	635.7 F37 1978 (Browse shelf(Opens below))		Link to resource	copy 1	Room use only	T-1110		00000022
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	635.7 F37 1978 (Browse shelf(Opens below))		Link to resource	copy 2	Room use only	T-1111		00000023

Thesis (MS--Agronomy) University of the Philippines

Includes bibliographical references.

Ferre, Alexander, F., University of the Philippines at Los Banos, March 1978. Pre-Sowing Hardening and Water Stress Effect on Sesame (Sesanum indicum L.) at Different Stages of Growth. Major Professor: Dr. Adolfo C. Necesito.

Laboratory studies on germination, seedling performance and field experimentation were conducted to study the response of sesame to pre-sowing hardening (PSH) and water stress at different stages of growth. The PSH treatment consisted of soaking seeds in different osmotica for 12 hours and drying for 48 hours before sowing.

Differences were observed among treatments in terms of germination in the following order: CaClg Control NaCl Glucose Distilled water. Concentration effect was clearly manifested among treatments that 2.5% gave the highest germination in CaClo, 0.1% in NaC1, and 0.7% in glucose. In terms of vegetative growth such as number of leaves and height of the plant and finally dry matter yield, calcium chloride with concentration of 2.0 and 2.5% were considered the best.

Under field trial the favorable effect of pre-sowing hardening treatment was clearly manifested on the following plant characteristics: improve fresh weight yield of roots, favorable relative water content of leaves and petiole which was highest in hardened plants under non-irrigated treatment. Dry weight yield of roots was also observed to be higher in the hardened plants than the control for both the irrigated and non-irrigated plants. These characters were obServed during the flowering stage.

Pre-sowing hardening treatments (PSH) resulted in higher seed yields than the control regardless of the irrigation treatments.

All these observations suggest that the pre-treatments could be an effective measure to improve drought tolerance to some degree.

Submitted to the University Library 4/10/1989 1110 copy 1

Submitted to the University Library 4/10/1989 1111 copy 2