Propagation of Persian walnut (Juglans regia L.) under controlled climatic conditions

Abstract

Wedge grafting was performed on two year old Persian walnut seedling stocks; in first week of March during the years of 2014 and 2015 under different low cost locally made polyethylene structures (T1, T2, T3, T4, T5 and in natural climatic conditions (T6). The pooled data observations revealed highest bud sprout (86.25 percent), grafting success (53.75 percent) and annual shoot growth (12.75 inches) under low tunnel-cum-trench (T4) against minimum figures of 47.50 percent, 2.50 percent and 6.20 inches respectively in natural climatic conditions (T6). Further, least number of days (54.67) were taken for shoot initiation under low tunnel- cum-trench against that of 78.25 days in natural climatic conditions.