一、前言 长豇豆是一种喜温耐热的蔬菜,在35℃的高温下仍能正常生长结荚,营养丰富,成为炎夏缺菜时期的重要蔬菜之一。在国外直豆除鲜荚外,干豆粒也是主要粮菜食品,主产于非洲,拉丁美洲和东南亚一带,为发展中国家的主要蛋白质来源。我国长豇豆品种很多。自红咀燕(一点红)在全国 I. INTRODUCTION Asparagus bean is a kind of warm and heat-resistant vegetable that can grow normally under the high temperature of 35 ℃. It is one of the important vegetables during the summer lacking vegetable season. Beans in addition to fresh pod outside the country, dry beans are also the main staple foods, mainly produced in Africa, Latin America and Southeast Asia, as the main source of protein in developing countries. There are many varieties of asparagus in our country. Since the red mouth Yan (a little red) in the country