F.C. Oad
Sindh Agriculture University Tando Jam, Pakistan
M.AS. Samo
Sindh Agriculture University Tando Jam, Pakistan
N.L. Oad
Not AvailableSindh Agriculture University Tando Jam, Pakistan
G.Q. Chandio
Sindh Agriculture University Tando Jam, Pakistan
Pompe Sta. Cruz
Philippines Rice Research Institute (PhilRice) Philippines
ABSTRACT
The rice ratooning practice is unfamiliar in the framing community. It need to be introduced for achieving yield targets, because neither the vertical nor the horizontal increase of rice production could keep pace with this thrust even if the yielding ability has more or less reached in the plateau. Locklodged rice ratooning in this regard might be an alternative approach. With minimum care, no land preparation and transplanting, it can yield at least half of the main rice crop. The attempt was made to exploit the relationship of yield contributing characters and physiological parameters with each other to understand the mode of relationship with yield attributes, which could be guideline for breeders, agronomists and plant physiologists. The study envisaged that the locklodged rice grain yield was associated with all the agronomic and physiological traits including plant height, leaf dry matter total dry matter, leaf area index, relative growth rate, crop growth rates, biomass duration, 1000 grain weight, seed length, panicle length, number of panicles per plant, tiller number at harvest, and ratoon rating. Whereas, the grain yield showed non-significant relationship with net assimilation rate. These all the growth, yield and physiological parameters were also associated with each other except net assimilation rate of the crop.
PDF References Citation
How to cite this article
F.C. Oad, M.AS. Samo, N.L. Oad, G.Q. Chandio and Pompe Sta. Cruz, 2002. Relationship of Physiological, Growth and Yiedl Contributing Parameters of Locklodged Rice Ratoon crop. Journal of Applied Sciences, 2: 429-432.
DOI: 10.3923/jas.2002.429.432
URL: https://scialert.net/abstract/?doi=jas.2002.429.432
DOI: 10.3923/jas.2002.429.432
URL: https://scialert.net/abstract/?doi=jas.2002.429.432
REFERENCES
- Bahar, F.A. and S.K. de Datta, 1977. Prospects of increasing tropical rice production. Agron. J., 69: 536-540.
Direct Link - Blackman, V.H., 1919. The compound interest law and plant growth. Ann. Bot., 33: 353-360.
Direct Link - Elalaoui, A.C. and S.R. Simmons, 1988. Quantitative translocation of photoassimilates from nonsurviving tillers in Barley. Crop Sci., 28: 969-972.
Direct Link - Ichii, M., 1984. Studies on the Utility of Ratoon Traits of Rice as the Indicator of Agronomic Characters in Breeding. Kyoto University, Kyoto, pp: 44-49.
Direct Link - Ichii, M. and N. Ogaya, 1985. Application of ratoon traits obtained by higher cutting for estimation of percentage of ripened grains in rice plants. Jpn. J. Breed., 35: 311-316.
Direct Link - Oad, F.C. and P. Sta. Cruz, 2001. Yield attributes of conventional rice ratoonings and lock lodged ratooning under varying nitrogen levels. J. Applied Sci., 1: 356-358.
CrossRefDirect Link - Watson, D.J., 1952. The physiological basis of variation in yield. Adv. Agron., 4: 101-145.
CrossRefDirect Link