Effect of seed treatments on storage life of Casuarina equisetifolia

Umarani R., . and Bharathi A., . and Karivaratharaju T.V., . Effect of seed treatments on storage life of Casuarina equisetifolia. pp. 18-23. ISSN 0128-1283

Umarani R. Bharathi a. Karivaratharaju T.V. 1997. Effect of seed treatments on storage life of Casuarina equisetifolia. Seeds of Casuarina equisetifolia were treated with leaf powders of arappu (Albizia amara) neem (Azadirachta indica) and notchi (Vitex negundo) and neem oil Captan Thiram Carbaryl Captan plus Carbaryl and Thiram plus Carbaryl. The dosage per 100 g of seed for each of the leaf powders was 10 g; neem oil 1 ml; Captan 2 g; Thiram 2 g; Carbaryl 200 mg; Captan plus Carbaryl 1 g plus 100 mg; and Thiram plus Carbaryl 1 g plus 100 mg. They were stored in polythene and paper bags for seven months and then subjected to germination test. Measurements were made of percentage germination root and shoot lengths dry matter production and vigour index. Although seed viability and vigour decreased with increase in period of storage the arappu treatment followed by that of Captan and Carbaryl recorded higher values compared to the rest of the treatments and control. For example from an initial percentage germination of 70 percent the value dropped to 22 percent in the control after seven months storage. However treatments with arappu leaf powder and Captan plus Carbaryl resulted in values of 88 percent and 31 percent respectively after the same period of storage. Germination and vigour were maintained better in polythene than paper containers.

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Abstract

Umarani R. Bharathi a. Karivaratharaju T.V. 1997. Effect of seed treatments on storage life of Casuarina equisetifolia. Seeds of Casuarina equisetifolia were treated with leaf powders of arappu (Albizia amara) neem (Azadirachta indica) and notchi (Vitex negundo) and neem oil Captan Thiram Carbaryl Captan plus Carbaryl and Thiram plus Carbaryl. The dosage per 100 g of seed for each of the leaf powders was 10 g; neem oil 1 ml; Captan 2 g; Thiram 2 g; Carbaryl 200 mg; Captan plus Carbaryl 1 g plus 100 mg; and Thiram plus Carbaryl 1 g plus 100 mg. They were stored in polythene and paper bags for seven months and then subjected to germination test. Measurements were made of percentage germination root and shoot lengths dry matter production and vigour index. Although seed viability and vigour decreased with increase in period of storage the arappu treatment followed by that of Captan and Carbaryl recorded higher values compared to the rest of the treatments and control. For example from an initial percentage germination of 70 percent the value dropped to 22 percent in the control after seven months storage. However treatments with arappu leaf powder and Captan plus Carbaryl resulted in values of 88 percent and 31 percent respectively after the same period of storage. Germination and vigour were maintained better in polythene than paper containers.

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Item Type:	Article
Additional Information:	Summaries (En Ms)
AGROVOC Term:	CASUARINA EQUISETIFOLIA
AGROVOC Term:	SEED TREATMENT
AGROVOC Term:	CHEMICALS
AGROVOC Term:	SEED STORAGE
AGROVOC Term:	KEEPING QUALITY
AGROVOC Term:	VIABILITY
AGROVOC Term:	GERMINATION
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:52
URI:	http://webagris.upm.edu.my/id/eprint/17748

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