2.3.5. Gray leaf spot and TMV
Entries were tested by molecular markers (Table 2).
2.3.6. Genotyping
DNA was isolated from fresh young leaves using the method
described by Fulton et al. (1995). Primers and assay conditions for
the assessment ofthe genotypes at resistance gene loci areprovided
in the references listed in Table 2.
2.4. Evaluation of yield and horticultural traits
Two field trials (FT) were conducted at AVRDC Taiwan, the first
from October 2012 to March 2013 (FT1), and the second from
February–June 2014 (FT2). Entries included five CLN3241 F7:8 lines
and checks CLN2498D, ‘Tanya,’ and CLN3078C. Entries were replicated
twice and plots were arranged in a randomized complete
block design. FT1 was sown and transplanted 24 September, 2012
and 28 October, respectively. FT2 was sown on 8 February and
transplanted on 18 March, 2014. Plots included a 1.5 m-wide bed
with two 4.0-m-long rows per bed (24 plants). Beds were covered
by gray plastic mulch and rice straw and plants were staked and
pruned. A basal application of 120N–52P–100K–32 Mg kg/ha and
an additional 90N–38P–74K–24 Mg kg/ha was applied over four
side dressings. Pesticides were used to control insects and furrow
irrigation was applied as needed. FT1 plots were harvested on 5
February, 19 February, 3 March and 18 March, 2013 and FT2 plots
were harvested 2 June, 5 June and 16 June, 2014.