18.02.2013 Views

I - --ii

I - --ii

I - --ii

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

altitude of 923 m in the Beqa'a valley of Lebanon. The high plateau site was<br />

located at Hymana (39'50'N, 32°40'E) at an altitude of 1055 m in Turkey.<br />

Evaluation at Tel Hcdya<br />

A total of 3000 kabuli accessions from the germplasm collection were planted in<br />

November 1978. Each accession was sown in an unreplicated 5-m row, with the<br />

rows spaced 60 cm apart. The local chickpea landrace in Syria (ILC 1929) was<br />

sown after every two test entries. Plant emergence was r.corded before the onset<br />

of severe winter conditions in the third week of November, when the minimum<br />

air temperatures fell below zero (-I to -2°C) on five consecutive nights. The<br />

lowest air temperatures during December 1978, January and February 1979<br />

were, respectively, 1, -1, and 2.4*C and the monthly average minimum air<br />

temperatures were 5, 4 and 6C, respectively.<br />

At the end of the suvere winter period, the lines were scored for cold tolerance<br />

in early February on a 1to 3 scale, where 1 = free from cold injury; 2 = leases of<br />

a few plants within each entry were partially affected showing epinasty and<br />

restriction of leaf expansion (these plants recovered completely afterwards);<br />

3 = part or whole plant damaged with no possiblity of recovery. The results are<br />

presented in Tab. 1.Forty percent of the entries showed no cold injury, and 60%<br />

suffered a temporary effect of cold with no mortality.<br />

Table I<br />

Screening chickpea lines for tolerance to cold at Tel Hadya, Syria, during 1978-79.<br />

Rating No. of entries % of entries<br />

1 1247 41.57<br />

2<br />

3<br />

1753<br />

0<br />

Total 3000 100<br />

58.43<br />

0.00<br />

Evaluation at Terbol<br />

A total of 3182 kabuli accessions from the germplasm collection were sown in<br />

November 1978, in the same layout as at Tel Hadya. The local chickpea landrace<br />

(ILC 1930) was sown after every nine test entries. Plant emergence was recorded<br />

before the onset of the severe winter. The absolute minimum air temperatures<br />

during November and December 1978 and January, February and March 1979<br />

were -6.8, -2.8, -4.0, -4.0, and 4.8°C, respectively. The mean monthly minimum<br />

air temperatures were 0.17, 3.08, 0.18, 1.63 and 2.26 0 C, respectively. The<br />

crop was covered with snow during December and January for several days.<br />

169

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!