volume 34 issue 1 (march 2000) : 17-22
STUDIES ON APPLE YIELD FORECASTING ON THE BASIS OF BUD EXAMINATION
1Department of Pornology
Dr. Y.S. Parmar University of Horticulture & Forestry, Nauni-173 230, India
Published In
Indian Journal of Agricultural Research
Article Metrics
0
Views
0
Citations
Reviewed By
In this Article
APC
APC cover the cost of turning a manuscript into a published manuscript through peer-review process, editorial work as well as the cost of hosting, distributing, indexing and promoting the manuscript.
Publish With US
Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
Become a Reviewer/Member
Join our esteemed reviewers panel and become an editorial board member with international experts in the domain of numerous specializations.
Open Access
Filling the gap between research and communication ARCC provide Open Access of all journals which empower research community in all the ways which is accessible to all.
Products and Services
We provide prime quality of services to assist you select right product of your requirement.
Support and Policies
Finest policies are designed to ensure world class support to our authors, members and readers. Our efficient team provides best possible support for you.
volume 34 issue 1 (march 2000) : 17-22
STUDIES ON APPLE YIELD FORECASTING ON THE BASIS OF BUD EXAMINATION
1Department of Pornology
Dr. Y.S. Parmar University of Horticulture & Forestry, Nauni-173 230, India
ABSTRACT
Studies were conducted on yield forecasting of apple, grown at 2000 (L3) m amsl in Himachal Pradesh during 1994 to 1996. Yield was found to increase with increase in elevation. The proportion of reproductive buds was studies on five different categories viz., on short terminals (S1), branched spurs (S2), spurs having fruit in previous seasons (S3), solitary swollen spurs (S4) and pointed buds (S5). The floral bud proportion increased with increasing altitude. S4 was found to be the potential fruiting category irrespective of location. Yield predicting models were selected through Principal Component (PC) and Ordinary least square (OL5) regression analysis. PC regression gave better estimates. Reproductive bud proportions (R2 and R4) on branched (S2) and solitary swollen spurs (S4) were found to be significant explanatory variables for yield at L1 and L2. At L3, R3 i.e. reproductive bud proportion on S3 was also important. The forecasting performance of the selected regression lines was ranked ‘good’.
KEYWORDS
REFERENCES
- Baab,G. (1989) Besseresobst. 34:2, 3, 34-36, 45-46, 79-82.
- Buban, T. and Faust, M. (1982) Hort.Rev.4: 174-203.
- Childer, N.F. (1975) Modern Fruit Science. 6th ed.Horticultural Publications. Rutgers University- 080903. ~
- Gujarati, D.N. (1988) Basic Econometrics. McgrawHill Book Company, Singapore.
- lezzoni, A.F. and Pritts,M.P. (1991). Hort. Sci. 26: 334-338.
- Jensen, W./'\.. (1962) Botanical Histochemistry. W.H. Freeman and Company. San Fransisco.
- Koutsoyiannis, A. (1991) In: Theory of Econometrics (2nd Ed.) by A. Koutsoyiannis. ELBS
- with Macmillan.
- Moore, C.S. (1965) J. Hort. Sci. 40: 133-149.
- Rodriguez, A.R. (1995). Hort. Sci. 30: 605-610.
- Sanint, L.R. (1982). AgriJ. Eco. Res. 34: 21-27.
- Shashi Kumar, (1997). Ph.D. thesis Dr. Y.S. Parmar University of Horticulture and Forestry,
- Solan-173230 (HPJ, India
- Streitberge, H. et aI., (1982). Gartenban, 25: 1567-1574.
- Theil, H. (1962) Applied Economic Forecast and Policy. pp.1-48, North Holland.
- Theil, H..(1966) Applied Economic Forecasting. North Holland pp.26-36.
- Westwood, M.N. (1993). Temperate Zone Pomology 3rd Ed. W.H. Freeman and Company, San Fransisco.
Disclaimer :
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Copyright :
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this Article
APC
APC cover the cost of turning a manuscript into a published manuscript through peer-review process, editorial work as well as the cost of hosting, distributing, indexing and promoting the manuscript.
Publish With US
Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
Become a Reviewer/Member
Join our esteemed reviewers panel and become an editorial board member with international experts in the domain of numerous specializations.
Open Access
Filling the gap between research and communication ARCC provide Open Access of all journals which empower research community in all the ways which is accessible to all.
Products and Services
We provide prime quality of services to assist you select right product of your requirement.
Support and Policies
Finest policies are designed to ensure world class support to our authors, members and readers. Our efficient team provides best possible support for you.
Published In
Indian Journal of Agricultural Research