STUDY ON GROWTH, YIELD, WATER USE AND SHOOT-ROOT CHARACTERISTICS OF BUSH SNAP BEAN AS INFLUENCED BY MICRO-IRRIGATION AND SURFACE METHOD OF IRRIGATION

摘要

A field experiment was conducted in the foothills of the Himalayas to study the response of Bush snap bean to micro-irrigation (drip and micro-sprinkler) and conventional surface method of irrigation. The value for all the biometric characteristics,seed weight and seed: husk ratio was found on the higher side with micro-sprinkler irrigation. The green pod yield was 32.45 and 18.71 per cent higher with considerable water saving of 58.61 and 31.46 per cent and higher water use efficiency of 386 and 209 kg ha-cm~(-1) respectively with drip and micro-sprinkler over surface method of irrigation. Green pod yield, weight and number of dry pods, number of seeds per plant, husk weight, number of secondary and tertiary roots and ratio of weight of fresh shoot to root was found maximum with drip method of irrigation, whereas, length of primary root and overall root was found maximum with surface irrigation.