TY  - BOOK
AU  - Chandrashekar T R
AU  - Alice J
AU  - Mydin K K
AU  - Saraswathyamma C K
AU  - Varghese Y A
TI  - Intraclonal variability for yield in rubber (Hevea brasiliensis)
PY  - 1997///
PB  - Indian Journal of Natural Rubber Research
KW  - Hevea brasiliensis
KW  - Intraclass correlation
KW  - Intraclonal variability
KW  - Yield
N2  - A study was conducted to quantify the monthly and seasonal intraclonal variability for yield in four clones of Hevea brasiliensis. Two moderate yielders(RRII 203 and GT 1) and two high yielders (RRIM 600 and RRII 105) were studied. Data on dry rubber content, latex volume yield and daily dry rubber yield were collected from forty trees of each clone for a period of twelve months. Estimates of intraclass correlations (r1) and coefficient of variation (CV) were worked out. All the clones showed good consistency in yield during postmonsoon season. Clone RRII 105 showed poor consistency in yield during summer. The CV for dry rubber yield within the four clones was about 25 per cent
ER  -