Promotion plot clone trials (First series): First report.

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Title: Promotion plot clone trials (First series): First report.
Creator: Khoo, S.K.
Creator: Sultan, M.O.
Creator: Ong, S.H.
Contributor: SAUID|ZAWATI|FENDY
Subject: PRRIM
Subject: Genetics, breeding and selection
Date: 20030923 | 20050906 | | 1981 | | | | | | |
Description: This article describes the early results of the first series of five promotion plot clone trials. It evaluates eight high yielding progenies from the cross PB 5/51 × RRIM 600 of the 1966 hand pollination programme. The trials were+ all established between 1972 and 1974. Two trials are in Johore and one each in Negri Sembilan, Pahang and Kedah. Four of the trials were established alongside the RRIM 800 series (first selection) trials in single plots with plot sizes ranging from + 0.12 to 0.17 ha. The fifth trial has a plot size of 0.20 ha with two or three plots per clone. Promotion plot clone trials, as in large-scale clone trials, are opened for tapping when 50% of the trees attain a girth of at least 46 cm at height of 152 cm + from the union. The tapping system adopted is S/2 d/2 6d/7 86%. The two oldest trials have completed three years of yield recording. The other three trials have just been opened for tapping. Thus only the yield data of the two oldest trials are reported + here. In addition to yield, information on budding success and secondary characteristics are also presented.

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Khoo, S.K., Sultan, M.O., Ong, S.H., . Promotion plot clone trials (First series): First report.. 20030923 | 20050906 | | 1981 | | | | | | |.

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Promotion plot clone trials (First series): First report.

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