Manik 817 mutant Oryza sativa

Mohamad Osman, . and Ramli Othman, . and Mahmud Jelani, . Manik 817 mutant Oryza sativa. pp. 39-45. ISSN 0127-791X

A glutinous and short-stature mutant was induced in the rice cultivar 'Manik' by treatment of seeds with 20 krad of gamma rays. Through this innovative breeding method the height of Manik was substantially reduced making Manik 817 on the average shorter by 30 cm than its parent. The shorter plant type makes it less prone to lodging. In comparison with Manik it has shorter and more erect flag leaf and shorter panicles. The grains are longer and more slender with slightly less 1 000-grain weight. The traits that are not affected include maturity period tillers per plant spikelets per panicle spikelet sterility and resistance. Manik 817 possesses the same gene as the cultivars Masria Pulut Malaysia I and Pulut Siding. In comparison with these glutinous cultivars Manik 817 is the shortest with average culm height of 68 cm. It matured in 146 days in the off-season only slightly later heading than Pulut Siding by 3 days. Manik 817 and Pulut Siding perform similarly well (4.0 t/ha) but both yield lower than Pulut Malaysia I. Manik 817 produces outstanding headrice recovery averaging 80.6 percent. The cooked rice tastes as good if not better than Pulut Siding and generally is less sticky. Although Manik 817 is similar to Pulut Siding in terms of yield potential maturity and resistance to rice pests it has better potential in terms of short-stature against lodging headrice yield and eating quality. A breeding programme is underway to shorten its maturity period.

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Abstract

A glutinous and short-stature mutant was induced in the rice cultivar 'Manik' by treatment of seeds with 20 krad of gamma rays. Through this innovative breeding method the height of Manik was substantially reduced making Manik 817 on the average shorter by 30 cm than its parent. The shorter plant type makes it less prone to lodging. In comparison with Manik it has shorter and more erect flag leaf and shorter panicles. The grains are longer and more slender with slightly less 1 000-grain weight. The traits that are not affected include maturity period tillers per plant spikelets per panicle spikelet sterility and resistance. Manik 817 possesses the same gene as the cultivars Masria Pulut Malaysia I and Pulut Siding. In comparison with these glutinous cultivars Manik 817 is the shortest with average culm height of 68 cm. It matured in 146 days in the off-season only slightly later heading than Pulut Siding by 3 days. Manik 817 and Pulut Siding perform similarly well (4.0 t/ha) but both yield lower than Pulut Malaysia I. Manik 817 produces outstanding headrice recovery averaging 80.6 percent. The cooked rice tastes as good if not better than Pulut Siding and generally is less sticky. Although Manik 817 is similar to Pulut Siding in terms of yield potential maturity and resistance to rice pests it has better potential in terms of short-stature against lodging headrice yield and eating quality. A breeding programme is underway to shorten its maturity period.

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Item Type:	Article
Additional Information:	3 col. plates; 4 tables; 1 ref. Summary (En Ms)
AGROVOC Term:	ORYZA SATIVA
AGROVOC Term:	MUTANTES
AGROVOC Term:	MALASIA/ MUTACION INDUCIDA
AGROVOC Term:	IRRADIACION GAMMA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:55
URI:	http://webagris.upm.edu.my/id/eprint/20170

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